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Single metal atom oxide anchored Fe3O4-ED-rGO for highly efficient photodecomposition of antibiotic residues under visible light illumination SCIE
期刊论文 | 2022 , 300 | APPLIED CATALYSIS B-ENVIRONMENTAL
WoS核心集被引次数: 25
摘要&关键词 引用

摘要 :

Designing highly efficient photocatalysts is significantly important to degrade the harmful pollutions in water. In this study, photocatalyst of Fe3O4-ED-rGO with dissolved HPV was successfully prepared and electron microscopy characterization revealed that large number of single tungsten/vanadium atom oxide (ST/VAO) was homogeneously deposited on Fe3O4 nanoparticles in SMAO-MrGO-ED sample and occupied the bivalent Fe2+ sites. Meanwhile, phase analysis confirmed that the Fe3O4 nanocomposites were mostly conversed from the reducted Fe2O3 by the hydrolysis of rGO-ED-HPV. Such a highly dispersed monatomic adsorption on the bivalent Fe2+ of polycrystalline SMAO-MrGO-ED nanocomposite not only benefits for the visible light absorption from 2.7 eV to 2.10 eV, but also offers abundantly active sites to get the highest activity of 98.43% and 98.12% for ciprofloxacin (CF) and ibuprofen (IBF) photodegradation, respectively. All these discoveries give us a new insight to design the photocatalysts with high photodegradation efficiency, low cost, short reaction time and good reusability.

关键词 :

Ciprofloxacin Ciprofloxacin Ibuprofen Ibuprofen Magnetic nanocomposite Magnetic nanocomposite Photodegradation Photodegradation Single metal atom oxide Single metal atom oxide

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GB/T 7714 Selvakumar, Karuppaiah , Wang, Yueshuai , Lu, Yue et al. Single metal atom oxide anchored Fe3O4-ED-rGO for highly efficient photodecomposition of antibiotic residues under visible light illumination [J]. | APPLIED CATALYSIS B-ENVIRONMENTAL , 2022 , 300 .
MLA Selvakumar, Karuppaiah et al. "Single metal atom oxide anchored Fe3O4-ED-rGO for highly efficient photodecomposition of antibiotic residues under visible light illumination" . | APPLIED CATALYSIS B-ENVIRONMENTAL 300 (2022) .
APA Selvakumar, Karuppaiah , Wang, Yueshuai , Lu, Yue , Tian, Bohai , Zhang, Zeyu , Hu, Jingcong et al. Single metal atom oxide anchored Fe3O4-ED-rGO for highly efficient photodecomposition of antibiotic residues under visible light illumination . | APPLIED CATALYSIS B-ENVIRONMENTAL , 2022 , 300 .
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Catalytic stability enhancement for pollutant removal via balancing lattice oxygen mobility and VOCs adsorption SCIE
期刊论文 | 2022 , 424 | JOURNAL OF HAZARDOUS MATERIALS
WoS核心集被引次数: 75
摘要&关键词 引用

摘要 :

Manganese oxide supported Pt single atoms (Pt-1/MnOx) are prepared by the molten salt method. Catalytic oxidation of toluene and iso-hexane, typical emissions from furniture paints industry, is tested. Pt-1/MnOx shows poor and high catalytic stability for toluene and iso-hexane oxidation, respectively. Enhancement in the catalytic stability for toluene oxidation is observed after the hydrogen reduction treatment of Pt-1/MnOx at 200 degrees C. The hydrogen treated catalyst possesses the weaker Mn-O bonds and lower coordination number of Pt-O, with superior mobility of lattice oxygen and appropriate toluene adsorption. Balancing lattice oxygen mobility and volatile organic compounds adsorption is important for the catalytic stability of Pt-1/MnOx. For the oxidation of toluene and iso-hexane mixture, owing to the competitive adsorption, iso-hexane oxidation is greatly inhibited, while toluene oxidation is not influenced. The present Pt-1/MnOx catalyst holds promising prospect in furniture paints industry applications because of high catalytic stability and water resistance ability.

关键词 :

Catalytic stability Catalytic stability Lattice oxygen mobility Lattice oxygen mobility Single atom catalyst Single atom catalyst VOCs adsorption VOCs adsorption VOCs removal VOCs removal

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GB/T 7714 Feng, Yuan , Wang, Chongchen , Wang, Can et al. Catalytic stability enhancement for pollutant removal via balancing lattice oxygen mobility and VOCs adsorption [J]. | JOURNAL OF HAZARDOUS MATERIALS , 2022 , 424 .
MLA Feng, Yuan et al. "Catalytic stability enhancement for pollutant removal via balancing lattice oxygen mobility and VOCs adsorption" . | JOURNAL OF HAZARDOUS MATERIALS 424 (2022) .
APA Feng, Yuan , Wang, Chongchen , Wang, Can , Huang, Haibao , Hsi, Hsing-Cheng , Duan, Erhong et al. Catalytic stability enhancement for pollutant removal via balancing lattice oxygen mobility and VOCs adsorption . | JOURNAL OF HAZARDOUS MATERIALS , 2022 , 424 .
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Poisoning Effects of Alkali and Alkaline Earth Metal Doping on Selective Catalytic Reduction of NO with NH3 over the Nb-Ce/Zr-PILC Catalysts SCIE
期刊论文 | 2021 , 11 (3) | CATALYSTS
WoS核心集被引次数: 3
摘要&关键词 引用

摘要 :

The poisoning effects of alkali metals (K and Na) and alkaline earth metals (Ca and Mg) on catalytic performance of the 2Nb4Ce/Zr-PILC catalyst for the selective catalytic reduction of NOx with NH3 (NH3-SCR) were investigated, and physicochemical properties of the catalysts were characterized by means of the X-ray diffraction XRD (XRD), Brunner-Emmet-Teller (BET), hydrogen temperature-programmed reduction (H-2-TPR), X-ray Photoelectron Spectroscopy (XPS), ammonia temperature-programmed desorption (NH3-TPD), and in situ diffuse reflectance infrared Fourier transform spectroscopy (in situ DRIFTS) techniques. Doping of M (M = K, Na, Ca, and Mg) deactivated the 2Nb4Ce/Zr-PILC catalyst according to the sequence of 0.8 K > 0.8 Na > 0.8 Ca > 0.8 Mg (M/Ce molar ratio = 0.8). The characterization results showed that the decreases in redox ability, NH3 adsorption, Ce3+/Ce4+ atomic ratio, and amount of the chemisorbed oxygen (O-beta) were the important factors influencing catalytic activities of the alkali metal-and alkaline earth metal-doped samples. Consequently, compared with the Mg- and Ca-doped samples, doping of K caused the 2Nb4Ce/Zr-PILC sample to possess the lowest redox ability, NH3 adsorption, and amount of the O-beta species, which resulted in an obvious deactivation effect.

关键词 :

alkali metal alkali metal alkaline earth metal alkaline earth metal NH3-SCR NH3-SCR poisoning poisoning selective catalytic reduction selective catalytic reduction surface acidity surface acidity

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GB/T 7714 Li, Chenxi , Cheng, Jin , Ye, Qing et al. Poisoning Effects of Alkali and Alkaline Earth Metal Doping on Selective Catalytic Reduction of NO with NH3 over the Nb-Ce/Zr-PILC Catalysts [J]. | CATALYSTS , 2021 , 11 (3) .
MLA Li, Chenxi et al. "Poisoning Effects of Alkali and Alkaline Earth Metal Doping on Selective Catalytic Reduction of NO with NH3 over the Nb-Ce/Zr-PILC Catalysts" . | CATALYSTS 11 . 3 (2021) .
APA Li, Chenxi , Cheng, Jin , Ye, Qing , Meng, Fanwei , Wang, Xinpeng , Dai, Hongxing . Poisoning Effects of Alkali and Alkaline Earth Metal Doping on Selective Catalytic Reduction of NO with NH3 over the Nb-Ce/Zr-PILC Catalysts . | CATALYSTS , 2021 , 11 (3) .
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Combustion of acetylene over the mesoporous CeO2-supported IrFe bimetallic catalysts SCIE
期刊论文 | 2021 , 382 , 22-33 | CATALYSIS TODAY
WoS核心集被引次数: 2
摘要&关键词 引用

摘要 :

Bimetallic compounds are a kind of important catalytic materials in heterogeneous catalysis. In this work, we first employed n-butyllithium as reducing agent to synthesize Ir and IrFex (x is the Fe/Ir molar ratio and equal to 0.49, 0.90, and 2.80) nanocrystals (NCs), and then used an adsorption strategy to load them on the surface of ordered mesoporous ceria (meso-CeO2) derived from the KIT-6-templating route to obtain the 0.48 wt% Ir/mesoCeO2 (denoted as 0.48Ir/meso-CeO2) and 0.53-0.89 wt% IrFex/meso-CeO2 (denoted as 0.53IrFe0.49/meso-CeO2, 0.59IrFe0.90/meso-CeO2, and 0.89IrFe2.80/meso-CeO2) samples. Physicochemical properties of the samples were characterized by means of various techniques. It is shown that all of the samples possessed a cubic crystal phase, an ordered mesoporous architecture, and a surface area of 84-124 m2/g, in which the IrFex NCs with an average size of ca. 2 nm were highly dispersed on the meso-CeO2 surface. Among all of the samples, 0.59IrFe0.90/mesoCeO2 performed the best for acetylene combustion (T10% =155 degrees C, T50% =162 degrees C, and T90% =165 degrees C at space velocity = 20,000 mL/(g h)). Furthermore, 0.59IrFe0.90/meso-CeO2 showed good water- and carbon dioxideresistant performance, and its partial deactivation due to the introduction of SO2 was reversible. The possible reaction mechanisms over Ir/meso-CeO2 or IrFex/meso-CeO2 were also discussed. We conclude that the well dispersed IrFe0.90 NCs, high adsorbed oxygen and acetylene amounts, low-temperature reducibility, and strong interaction between IrFe0.90 NCs and meso-CeO2 were responsible for the good catalytic performance of 0.59IrFe0.90/meso-CeO2.

关键词 :

Acetylene combustion Acetylene combustion Bimetallic nanocrystal Bimetallic nanocrystal Mesoporous cerium oxide Mesoporous cerium oxide Sulfur dioxide resistance Sulfur dioxide resistance Supported iridium-iron catalyst Supported iridium-iron catalyst

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GB/T 7714 Li, Jing , Dai, Lingyun , Liu, Yuxi et al. Combustion of acetylene over the mesoporous CeO2-supported IrFe bimetallic catalysts [J]. | CATALYSIS TODAY , 2021 , 382 : 22-33 .
MLA Li, Jing et al. "Combustion of acetylene over the mesoporous CeO2-supported IrFe bimetallic catalysts" . | CATALYSIS TODAY 382 (2021) : 22-33 .
APA Li, Jing , Dai, Lingyun , Liu, Yuxi , Deng, Jiguang , Jing, Lin , Hou, Zhiquan et al. Combustion of acetylene over the mesoporous CeO2-supported IrFe bimetallic catalysts . | CATALYSIS TODAY , 2021 , 382 , 22-33 .
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Potassium-modified ordered mesoporous carbon materials (K-CMK-3): Highly efficient adsorbents for NO adsorption at low temperatures SCIE
期刊论文 | 2021 , 294 | JOURNAL OF SOLID STATE CHEMISTRY
WoS核心集被引次数: 7
摘要&关键词 引用

摘要 :

To improve the removal capacity of (NO + O-2) effectively, the K-CMK-3(x) (KNO3: CMK-3 mass ratio (x) = 10-20 wt%, in which CMK-3 is an abbreviation of the ordered mesoporous carbon) samples were prepared, and their physical properties and (NO + O-2) adsorption performance were determined by means of analytical techniques, such as XRD, TEM, BET, TG, TPD, and DRIFTS. The ordered mesostructures were retained and specific surface areas and pore volumes of the K-CMK-3(x) samples increased after doping of K. Moreover, the doped K species were uniformly distributed on the surface of CMK-3, and K doping increased the amount of the basic sites in the sample. The structure and amount of the basic sites were the main factors influencing the (NO + O-2) adsorption on the sample. The sequence in (NO + O-2) adsorption performance was as follows: K-CMK-3(15) (143.8 mg/g) > K-CMK-3(20) (127.6 mg/g) > K-CMK-3(10) (103.6 mg/g) > CMK-3 (88.8 mg/g), with the K-CMK-3(15) sample possessing the best adsorption performance. There were two main adsorption pathways during the process of (NO + O-2) adsorption: one pathway was the conversion of NO and O-2 to a large number of NO2, in which part of NO2 was weakly adsorbed on the surface hydroxyl groups, and the other part of NO2 was disproportionated to NO, NO2-, and NO3-; and the other pathway was first the direct oxidization of NO to NO2- by the oxygen functional groups in carbon and then some of the formed NO2- species were converted to NO3-.

关键词 :

Adsorption mechanism Adsorption mechanism CMK-3 CMK-3 (NO + O-2) adsorption (NO + O-2) adsorption Ordered mesoporous carbon Ordered mesoporous carbon Potassium doping Potassium doping

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GB/T 7714 Wu, Runping , Ye, Qing , Wu, Kai et al. Potassium-modified ordered mesoporous carbon materials (K-CMK-3): Highly efficient adsorbents for NO adsorption at low temperatures [J]. | JOURNAL OF SOLID STATE CHEMISTRY , 2021 , 294 .
MLA Wu, Runping et al. "Potassium-modified ordered mesoporous carbon materials (K-CMK-3): Highly efficient adsorbents for NO adsorption at low temperatures" . | JOURNAL OF SOLID STATE CHEMISTRY 294 (2021) .
APA Wu, Runping , Ye, Qing , Wu, Kai , Dai, Hongxing . Potassium-modified ordered mesoporous carbon materials (K-CMK-3): Highly efficient adsorbents for NO adsorption at low temperatures . | JOURNAL OF SOLID STATE CHEMISTRY , 2021 , 294 .
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Highly efficient and enhanced sulfur resistance supported bimetallic single-atom palladium-cobalt catalysts for benzene oxidation SCIE
期刊论文 | 2021 , 285 | APPLIED CATALYSIS B-ENVIRONMENTAL
WoS核心集被引次数: 63
摘要&关键词 引用

摘要 :

Catalytic oxidation is one of the effective pathways for completely eliminating volatile organic compounds (VOCs) emitted from industrial and transportation activities. Meanwhile, single-atom catalysts have excellent application prospects in numerous reactions due to their high metal atomic utilization efficiency. In this work, we adopted a novel strategy to prepare an active Pd/Co single-atom catalyst (i.e., Pd1Co1/Al2O3) for benzene oxidation. The successful formation of the atomically dispersed palladium and cobalt species on Al2O3 was verified by the aberration-corrected high-angle annular dark-field scanning transmission electron microscopy and X-ray absorption fine structure. By the in situ temperature-programmed techniques and in situ diffuse reflectance Fourier transform infrared spectroscopy, we observed a double effect of the palladium and cobalt oxide active sites, resulting in an enhanced performance for benzene oxidation. A benzene conversion of 90 % was achieved over the Pd1Co1/Al2O3 catalyst at 250 degrees C and a space velocity of 40,000 mL/(g h). Interestingly, the catalyst also possessed enhanced sulfur resistance performance. The good regeneration ability of the active sites in the catalyst was due to the single-atom dispersion of Pd and Co. In addition, we deduce that benzene oxidation might occur over Pd1Co1/Al2O3 via a pathway of benzene -> cyclohexadiene -> phenol -> quinone -> maleate -> acetate -> CO2 and H2O. We believe that the obtained results can provide a useful idea for rationally designing the double active site single-atom catalysts and understanding the mechanism of VOCs oxidation.

关键词 :

Benzene oxidation Benzene oxidation Bimetallic single-atom catalyst Bimetallic single-atom catalyst Reaction mechanism Reaction mechanism Sulfur resistance Sulfur resistance Volatile organic compound Volatile organic compound

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GB/T 7714 Hou, Zhiquan , Dai, Lingyun , Liu, Yuxi et al. Highly efficient and enhanced sulfur resistance supported bimetallic single-atom palladium-cobalt catalysts for benzene oxidation [J]. | APPLIED CATALYSIS B-ENVIRONMENTAL , 2021 , 285 .
MLA Hou, Zhiquan et al. "Highly efficient and enhanced sulfur resistance supported bimetallic single-atom palladium-cobalt catalysts for benzene oxidation" . | APPLIED CATALYSIS B-ENVIRONMENTAL 285 (2021) .
APA Hou, Zhiquan , Dai, Lingyun , Liu, Yuxi , Deng, Jiguang , Jing, Lin , Pei, Wenbo et al. Highly efficient and enhanced sulfur resistance supported bimetallic single-atom palladium-cobalt catalysts for benzene oxidation . | APPLIED CATALYSIS B-ENVIRONMENTAL , 2021 , 285 .
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An investigation on catalytic performance and reaction mechanism of RuMn/meso-TiO2 derived from RuMn intermetallic compounds for methyl ethyl ketone oxidation SCIE
期刊论文 | 2021 , 296 | APPLIED CATALYSIS B-ENVIRONMENTAL
WoS核心集被引次数: 9
摘要&关键词 引用

摘要 :

In this work, we first used the oil-phase co-reduction strategy to synthesize the RuxMny (Mn/Ru molar ratio (y/x) = 7 : 20, 21 : 25, and 17 : 10) intermetallic compounds, then used the KIT-6-templeting method to prepare mesoporous titania (meso-TiO2), and finally used the impregnation method to generate the RuxMny/meso-TiO2 (Ru loading = 0.60-0.79 wt%) catalysts. Various techniques were used to measure physicochemical properties of the samples, and their catalytic performance was determined for methyl ethyl ketone (MEK) oxidation. It is found that the RuxMny/meso-TiO2 samples possessed a three-dimensionally ordered mesoporous structure, a surface area of 71-173 m(2)/g, and a uniform RuxMny particle size of 2.3-2.9 nm. Among all of the samples, Ru25Mn21/meso-TiO2 exhibited the best catalytic performance and good hydrothermal stability: the temperatures at MEK conversions of 10, 50, and 90 % were 131, 226, and 248 degrees C at a space velocity of 20,000 mL/(g h), with the apparent activation energy, specific reaction rate at 160 degrees C, and turnover frequency (TOF) at 160 degrees C being 73 kJ/mol, 41.73 mmol/(g(Ru) s), and 4.20 s(-1), respectively. In addition, introduction of 5 vol% moisture to the reaction system exerted a positive effect on catalytic activity of Ru/meso-TiO2 or Ru25Mn21/meso-TiO2 at higher temperatures. Such good performance of the Ru25Mn21/meso-TiO2 sample was related to its well dispersed Ru25Mn21 nanoparticles, high adsorbed oxygen species concentration, active surface lattice oxygen, high MEK adsorption capacity, good redox ability, and strong interaction between Ru25Mn21 and meso-TiO2. We propose that MEK might be oxidized by the adsorbed oxygen and/or surface lattice oxygen species via in turn formation of 2,3-butanedione, acetaldehyde, acetic acid, formaldehyde, and formic acid, all of which were finally converted to water and carbon dioxide.

关键词 :

Methyl ethyl ketone oxidation Methyl ethyl ketone oxidation Ordered mesoporous titania Ordered mesoporous titania RuMn intermetallic compound RuMn intermetallic compound Supported RuMn catalyst Supported RuMn catalyst Volatile organic compound Volatile organic compound

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GB/T 7714 Wang, Jia , Dai, Lingyun , Deng, Jiguang et al. An investigation on catalytic performance and reaction mechanism of RuMn/meso-TiO2 derived from RuMn intermetallic compounds for methyl ethyl ketone oxidation [J]. | APPLIED CATALYSIS B-ENVIRONMENTAL , 2021 , 296 .
MLA Wang, Jia et al. "An investigation on catalytic performance and reaction mechanism of RuMn/meso-TiO2 derived from RuMn intermetallic compounds for methyl ethyl ketone oxidation" . | APPLIED CATALYSIS B-ENVIRONMENTAL 296 (2021) .
APA Wang, Jia , Dai, Lingyun , Deng, Jiguang , Liu, Yuxi , Jing, Lin , Hao, Xiuqing et al. An investigation on catalytic performance and reaction mechanism of RuMn/meso-TiO2 derived from RuMn intermetallic compounds for methyl ethyl ketone oxidation . | APPLIED CATALYSIS B-ENVIRONMENTAL , 2021 , 296 .
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Influence of preparation method on catalytic performance of three-dimensionally ordered macroporous NiO-CuO for CO oxidation SCIE
期刊论文 | 2021 , 297 | JOURNAL OF SOLID STATE CHEMISTRY
WoS核心集被引次数: 9
摘要&关键词 引用

摘要 :

A series of three-dimensionally ordered macroporous (3DOM) nickel-copper mixed oxides (with the NiO/CuO molar ratios of 3 : 3, 3 : 2, and 3 : 1) calcined at various temperatures (450, 550, and 650 degrees C) were prepared using the dual-templating (Pluronic P123 and polymethyl methacrylate (PMMA)) method in a mixed solution of ethylene glycol and methanol with different volumetric ratios (1 : 2, 1 : 1.5, and 1 : 1). The sample obtained after the use of P123 and PMMA exhibited a much higher catalytic activity for CO oxidation, over which a complete CO conversion was achieved at 138 degrees C, CO/O-2 volumetric ratio = 2 : 5, and space velocity = 60,000 mL/(g h), and this catalyst possessed good stability in the presence of water vapor in the feed stream. The large surface area, high oxygen adspecies concentration, good low-temperature reducibility, and unique nanovoid 3DOM structure were accountable for the superior catalytic performance of the sample prepared by the dual P123- and PMMA-templating method.

关键词 :

Calcination temperature Calcination temperature CO oxidation CO oxidation Dual-templating method Dual-templating method Porous Ni-Cu oxides Porous Ni-Cu oxides Three-dimensionally ordered macropore Three-dimensionally ordered macropore

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GB/T 7714 Rastegarpanah, Ali , Liu, Yuxi , Deng, Jiguang et al. Influence of preparation method on catalytic performance of three-dimensionally ordered macroporous NiO-CuO for CO oxidation [J]. | JOURNAL OF SOLID STATE CHEMISTRY , 2021 , 297 .
MLA Rastegarpanah, Ali et al. "Influence of preparation method on catalytic performance of three-dimensionally ordered macroporous NiO-CuO for CO oxidation" . | JOURNAL OF SOLID STATE CHEMISTRY 297 (2021) .
APA Rastegarpanah, Ali , Liu, Yuxi , Deng, Jiguang , Jing, Lin , Pei, Wenbo , Zhang, Xing et al. Influence of preparation method on catalytic performance of three-dimensionally ordered macroporous NiO-CuO for CO oxidation . | JOURNAL OF SOLID STATE CHEMISTRY , 2021 , 297 .
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The Deactivation Mechanism of the Mo-Ce/Zr-PILC Catalyst Induced by Pb for the Selective Catalytic Reduction of NO with NH3 SCIE
期刊论文 | 2021 , 11 (10) | NANOMATERIALS
WoS核心集被引次数: 2
摘要&关键词 引用

摘要 :

As a heavy metal, Pb is one component in coal-fired flue gas and is widely considered to have a strong negative effect on catalyst activity in the selective catalytic reduction of NOx by NH3 (NH3-SCR). In this paper, we investigated the deactivation mechanism of the Mo-Ce/Zr-PILC catalyst induced by Pb in detail. We found that NO conversion over the 3Mo4Ce/Zr-PILC catalyst decreased greatly after the addition of Pb. The more severe deactivation induced by Pb was attributed to low surface area, lower amounts of chemisorbed oxygen species and surface Ce3+, and lower redox ability and surface acidity (especially a low number of Bronsted acid sites). Furthermore, the addition of Pb inhibited the formation of highly active intermediate nitrate species generated on the surface of the catalyst, hence decreasing the NH3-SCR activity.

关键词 :

Mo-Ce/Zr-PILC catalyst Mo-Ce/Zr-PILC catalyst NH3-SCR NH3-SCR Pb poisoning Pb poisoning surface acidity surface acidity

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GB/T 7714 Li, Chenxi , Cheng, Jin , Ye, Qing et al. The Deactivation Mechanism of the Mo-Ce/Zr-PILC Catalyst Induced by Pb for the Selective Catalytic Reduction of NO with NH3 [J]. | NANOMATERIALS , 2021 , 11 (10) .
MLA Li, Chenxi et al. "The Deactivation Mechanism of the Mo-Ce/Zr-PILC Catalyst Induced by Pb for the Selective Catalytic Reduction of NO with NH3" . | NANOMATERIALS 11 . 10 (2021) .
APA Li, Chenxi , Cheng, Jin , Ye, Qing , Meng, Fanwei , Wang, Xinpeng , Dai, Hongxing . The Deactivation Mechanism of the Mo-Ce/Zr-PILC Catalyst Induced by Pb for the Selective Catalytic Reduction of NO with NH3 . | NANOMATERIALS , 2021 , 11 (10) .
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Simulated solar light driven photothermal catalytic purification of toluene over iron oxide supported single atom Pt catalyst SCIE
期刊论文 | 2021 , 298 | APPLIED CATALYSIS B-ENVIRONMENTAL
WoS核心集被引次数: 44
摘要&关键词 引用

摘要 :

In this work, Fe2O3 supported single atom Pt (x Pt1/Fe2O3, x = 0.25 and 0.5 wt%) catalysts (SACs) are synthesized via a novel and simple impregnation-pyrolysis method. HAADF-STEM images show that Pt is atomically dispersed on the surface of Fe2O3. All samples exhibit good light-thermal conversion efficiency, which can increase the surface temperature of catalysts to 210 degrees C. The 0.5 Pt1/Fe2O3 exhibits the best photothermal catalytic performance (the toluene conversion and CO2 yield are 95 % and 87 %, respectively) for toluene oxidation under the irradiation of simulated sunlight with light intensity of 720 mW/cm2, which is attributed to its good lightthermal conversion efficiency and low temperature reducibility. The Vis-IR light plays a critical role in the photothermal catalytic oxidation of toluene in the whole solar spectrum. Furthermore, the possible photothermal catalytic reaction pathway of toluene oxidation is proposed based on the TD-GC/MS and in-situ DRIFTS experiments.

关键词 :

Catalytic oxidation mechanism Catalytic oxidation mechanism Light-driven photothermal catalysis Light-driven photothermal catalysis Single atom Pt catalyst Single atom Pt catalyst Toluene oxidation Toluene oxidation Volatile organic compounds Volatile organic compounds

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GB/T 7714 Wang, Zhiwei , Xie, Shaohua , Feng, Ying et al. Simulated solar light driven photothermal catalytic purification of toluene over iron oxide supported single atom Pt catalyst [J]. | APPLIED CATALYSIS B-ENVIRONMENTAL , 2021 , 298 .
MLA Wang, Zhiwei et al. "Simulated solar light driven photothermal catalytic purification of toluene over iron oxide supported single atom Pt catalyst" . | APPLIED CATALYSIS B-ENVIRONMENTAL 298 (2021) .
APA Wang, Zhiwei , Xie, Shaohua , Feng, Ying , Ma, Peijie , Zheng, Kun , Duan, Erhong et al. Simulated solar light driven photothermal catalytic purification of toluene over iron oxide supported single atom Pt catalyst . | APPLIED CATALYSIS B-ENVIRONMENTAL , 2021 , 298 .
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