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MOFs with acs and Nbo topologies using flexible diisophthalate ligands: Influence of dihedral angle between phenyl rings on the crystal structure SCIE
期刊论文 | 2021 , 129 | INORGANIC CHEMISTRY COMMUNICATIONS
摘要&关键词 引用

摘要 :

Research on the design, synthesis, and application of metal organic frameworks (MOFs) based on flexible ligands has attracted significant attention in recent years owing to their superior performance in applications such as gas adsorption and molecular separation. In this work, two acs-type MOFs and an Nbo-type MOF derived from three different flexible diisophthalate ligands were solvothermally prepared and structurally characterized by single crystal X-ray diffraction, powder X-ray diffraction, and thermogravimetric analysis. Analyses of the data revealed that the topologies of the MOFs were correlated to the dihedral angle between the phenyl rings in the ligands.

关键词 :

acs-type MOF acs-type MOF Flexible diisophthalate ligand Flexible diisophthalate ligand Nbo-type MOF Nbo-type MOF

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GB/T 7714 Li, Chuanqiang , Liu, Xiang , Qiu, Wenge et al. MOFs with acs and Nbo topologies using flexible diisophthalate ligands: Influence of dihedral angle between phenyl rings on the crystal structure [J]. | INORGANIC CHEMISTRY COMMUNICATIONS , 2021 , 129 .
MLA Li, Chuanqiang et al. "MOFs with acs and Nbo topologies using flexible diisophthalate ligands: Influence of dihedral angle between phenyl rings on the crystal structure" . | INORGANIC CHEMISTRY COMMUNICATIONS 129 (2021) .
APA Li, Chuanqiang , Liu, Xiang , Qiu, Wenge , Zhang, Yangyang , Zheng, Xuxu . MOFs with acs and Nbo topologies using flexible diisophthalate ligands: Influence of dihedral angle between phenyl rings on the crystal structure . | INORGANIC CHEMISTRY COMMUNICATIONS , 2021 , 129 .
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一种原位自生长模板水热合成“类海胆状”氮掺杂空心碳微球的方法 incoPat
专利 | 2021-03-30 | CN202110344391.9
摘要&关键词 引用

摘要 :

一种原位自生长模板水热合成“类海胆状”氮掺杂空心碳微球的方法,属于材料制备技术领域。具体步骤如下:将葡萄糖、硝酸锌、乌洛托品、柠檬酸三钠,以一定比例加入去离子水中,搅拌均匀,然后将上述悬浊液转入自压釜中进行水热处理,得棕色粉末固体,再在惰性气氛中焙烧,盐酸溶液脱除模板,得到“类海胆状”氮掺杂空心碳微球材料。

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GB/T 7714 邱文革 , 丁鑫磊 , 陈云 et al. 一种原位自生长模板水热合成“类海胆状”氮掺杂空心碳微球的方法 : CN202110344391.9[P]. | 2021-03-30 .
MLA 邱文革 et al. "一种原位自生长模板水热合成“类海胆状”氮掺杂空心碳微球的方法" : CN202110344391.9. | 2021-03-30 .
APA 邱文革 , 丁鑫磊 , 陈云 , 南俊平 , 张通 , 叶婧桐 . 一种原位自生长模板水热合成“类海胆状”氮掺杂空心碳微球的方法 : CN202110344391.9. | 2021-03-30 .
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Effects of Surface Oxygen-Containing Groups of the Flowerlike Carbon Nanosheets on Palladium Dispersion, Catalytic Activity and Stability in Hydrogenolytic Debenzylation of Tetraacetyldibenzylhexaazaisowurtzitane SCIE
期刊论文 | 2021 , 11 (4) | CATALYSTS
WoS核心集被引次数: 2
摘要&关键词 引用

摘要 :

The influence of the surface chemical properties of the carbon support on the Pd dispersion, activity and stability of Pd(OH)(2)/C catalyst for the hydrogenolytic debenzylation of tetraacetyldibenzylhexaazaisowurtzitane (TADB) was studied in detail. The flowerlike nanosheet carbon material (NSC) was chosen as the pristine support, meanwhile chemical oxidation with nitric acid and physical calcination at 600 degrees C treatments were used to modify its surface properties, which were denoted as NSCox-2 (treated with 20 wt% HNO3) and NSC-600, respectively. The three carbon supports and the corresponding catalysts of Pd/NSC, Pd/NSC-600, and Pd/NSCox-2 were characterized by scanning electron microscope (SEM), transmission electron microscopy (TEM), nitrogen sorption isotherm measurement (BET), powder X-ray diffraction (XRD), Raman spectra, X-ray photoelectron spectra (XPS), temperature-programmed desorption (TPD), temperature-programmed reduction (H-2-TPR), thermogravimetric analysis (TG), and element analysis. The debenzylation activities of Pd/NSC, Pd/NSC-600, and Pd/NSCox-2, as well as the three catalysts after pre-reduction treatment were also evaluated. It was found that the activity and stability of the Pd(OH)(2)/C catalysts in the debenzylation reaction highly depended on the content of surface oxygen-containing groups of the carbon support.

关键词 :

hydrogenolytic debenzylation hydrogenolytic debenzylation palladium catalyst palladium catalyst palladium dispersion palladium dispersion surface oxygen-containing groups surface oxygen-containing groups

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GB/T 7714 Chen, Yun , Ding, Xinlei , Qiu, Wenge et al. Effects of Surface Oxygen-Containing Groups of the Flowerlike Carbon Nanosheets on Palladium Dispersion, Catalytic Activity and Stability in Hydrogenolytic Debenzylation of Tetraacetyldibenzylhexaazaisowurtzitane [J]. | CATALYSTS , 2021 , 11 (4) .
MLA Chen, Yun et al. "Effects of Surface Oxygen-Containing Groups of the Flowerlike Carbon Nanosheets on Palladium Dispersion, Catalytic Activity and Stability in Hydrogenolytic Debenzylation of Tetraacetyldibenzylhexaazaisowurtzitane" . | CATALYSTS 11 . 4 (2021) .
APA Chen, Yun , Ding, Xinlei , Qiu, Wenge , Song, Jianwei , Nan, Junping , Bai, Guangmei et al. Effects of Surface Oxygen-Containing Groups of the Flowerlike Carbon Nanosheets on Palladium Dispersion, Catalytic Activity and Stability in Hydrogenolytic Debenzylation of Tetraacetyldibenzylhexaazaisowurtzitane . | CATALYSTS , 2021 , 11 (4) .
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Effect of SO2 treatment in the presence and absence of O-2 over ceria-titania oxides for selective catalytic reduction SCIE
期刊论文 | 2020 , 55 (11) , 4570-4577 | JOURNAL OF MATERIALS SCIENCE
WoS核心集被引次数: 3
摘要&关键词 引用

摘要 :

The performance of selective catalytic reduction of NO over ceria-titania (Ce-TiOx)-based materials after aging in SO2 atmosphere in the presence and absence of O-2 was investigated, showing that O-2 gave acceleration on the deactivation of the samples for the enhanced SO2 adsorption and sulfation over ceria-based materials. FT-IR and TPD-MS over samples with 10wt%, 50wt% and 90wt% of CeO2 were carried out. The results indicated the poisoning effect of SO2 over Ce-TiOx catalyst for SCR is in accordance with the amount of sulfite or sulfate over Ce-TiOx with a certain percentage of CeO2.

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GB/T 7714 Song, Liyun , Zhan, Zongchen , Sun, Xiangli et al. Effect of SO2 treatment in the presence and absence of O-2 over ceria-titania oxides for selective catalytic reduction [J]. | JOURNAL OF MATERIALS SCIENCE , 2020 , 55 (11) : 4570-4577 .
MLA Song, Liyun et al. "Effect of SO2 treatment in the presence and absence of O-2 over ceria-titania oxides for selective catalytic reduction" . | JOURNAL OF MATERIALS SCIENCE 55 . 11 (2020) : 4570-4577 .
APA Song, Liyun , Zhan, Zongchen , Sun, Xiangli , Zhu, Hongtai , Qiu, Wenge , He, Hong et al. Effect of SO2 treatment in the presence and absence of O-2 over ceria-titania oxides for selective catalytic reduction . | JOURNAL OF MATERIALS SCIENCE , 2020 , 55 (11) , 4570-4577 .
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Promoting effect of microwave irradiation on CeO2-TiO2 catalyst for selective catalytic reduction of NO by NH3 SCIE CSCD
期刊论文 | 2020 , 38 (1) , 59-69 | JOURNAL OF RARE EARTHS
WoS核心集被引次数: 42
摘要&关键词 引用

摘要 :

In this work we prepared several CeO2-TiO2 catalysts for the NH3-SCR reactionusing co-precipitation with assistance of microwave irradiation. The catalytic NH3-SCR activities over CeO2-TiO2 catalysts at low temperatures are largely enhanced by the treatment of microwave irradiation, the operation temperature window is also broadened. For better understanding the promotion mechanism, the catalyst prepared by conventional co-precipitation with and without microwave irradiation treatment was characterized with H-2-TPR, NH3-TPD, XPS, XRD and BET. Microwave irradiation treatment accelerates the crystallite rate of CeO2-TiO2 catalysts, and greatly enlarges their surface area by adjusting their microstructures. The resistance to SO2 and H2O is also improved via regulating the hierarchical pore structure by the microwave irradiation. Microwave irradiation treatment can also improve the redox property and increase the acid sites over the catalyst surfaces. The result of in situ DRIFTS suggests that the microwave irradiation treatment generates more Bronsted acid sites on CeO2-TiO2-2 h catalyst, helpful in SCR reactions. XPS results show that after microwave irradiation on the CeO2-TiO2 catalysts, the surface demonstrates an elevated concentration of chemisorbed oxygen, consequently leading to better oxidation of NO to NO2. Additionally, the molar ratio of Ce3+/Ce4+ has been elevated after being treated by microwave irradiation, a vital factor in enhancing the NH3-SCR activities. (C) 2019 Published by Elsevier B.V. on behalf of Chinese Society of Rare Earths.

关键词 :

CeO2-TiO2 CeO2-TiO2 Low temperature Low temperature Microwave irradiation Microwave irradiation NH3-SCR NH3-SCR Rare earths Rare earths SCR catalyst SCR catalyst

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GB/T 7714 Cheng, Jie , Song, Liyun , Wu, Rui et al. Promoting effect of microwave irradiation on CeO2-TiO2 catalyst for selective catalytic reduction of NO by NH3 [J]. | JOURNAL OF RARE EARTHS , 2020 , 38 (1) : 59-69 .
MLA Cheng, Jie et al. "Promoting effect of microwave irradiation on CeO2-TiO2 catalyst for selective catalytic reduction of NO by NH3" . | JOURNAL OF RARE EARTHS 38 . 1 (2020) : 59-69 .
APA Cheng, Jie , Song, Liyun , Wu, Rui , Li, Shining , Sun, Yanming , Zhu, Hongtai et al. Promoting effect of microwave irradiation on CeO2-TiO2 catalyst for selective catalytic reduction of NO by NH3 . | JOURNAL OF RARE EARTHS , 2020 , 38 (1) , 59-69 .
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High active platinum clusters on titanium dioxide supports toward carbon monoxide oxidation SCIE
期刊论文 | 2020 , 266 | APPLIED CATALYSIS B-ENVIRONMENTAL
WoS核心集被引次数: 26
摘要&关键词 引用

摘要 :

Highly dispersed single metal atom or cluster catalysts have attracted increasing attention because of improved atomic efficiency, higher reactivity and better selectivity. However, these catalysts on oxide supports often sinter to form large particles at high temperatures, which can lead to reduced surface areas and decreased catalytic activities, and are a major challenge to the development of optimal low temperature-active and sinter-resistant catalysts. Two kinds of platinum (Pt) clusters on titanium dioxide (TiO2) supports are successfully prepared in this study to investigate the low temperature activity towards carbon monoxide (CO) oxidation as well as thermal stability of the resulting catalyst; highly oxidized Pt clusters demonstrated higher catalytic activity and thermal stability towards CO oxidation as compared with lower oxidized Pt clusters, since the high oxidation state of the catalytic metal active sites is believed to be highly correlated with the electronic metal-support interactions (EMSI) between Pt and TiO2 support, and the results suggest that EMSI tailors the unoccupied 5d state of Pt species, thus greatly leading to the high activity and thermal stability.

关键词 :

CO oxidation CO oxidation Electronic metal-support interactions Electronic metal-support interactions Pt clusters Pt clusters TiO2 support TiO2 support

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GB/T 7714 Zhang, Lan , Cheng, Xing , Zhang, Guizhen et al. High active platinum clusters on titanium dioxide supports toward carbon monoxide oxidation [J]. | APPLIED CATALYSIS B-ENVIRONMENTAL , 2020 , 266 .
MLA Zhang, Lan et al. "High active platinum clusters on titanium dioxide supports toward carbon monoxide oxidation" . | APPLIED CATALYSIS B-ENVIRONMENTAL 266 (2020) .
APA Zhang, Lan , Cheng, Xing , Zhang, Guizhen , Qiu, Wenge , He, Hong , Chen, Ge . High active platinum clusters on titanium dioxide supports toward carbon monoxide oxidation . | APPLIED CATALYSIS B-ENVIRONMENTAL , 2020 , 266 .
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一种类花瓣状碳纳米片的制备方法 incoPat
专利 | 2019-09-12 | CN201910862274.4
摘要&关键词 引用

摘要 :

一种水热合成类花瓣状碳纳米片的制备方法,属于材料制备技术领域。具体步骤如下:将碳前驱体、碱性锌盐、细粉状二氧化硅以一定质量比加入去离子水中,搅拌形成均匀悬浊液,并将悬浊液转入自压釜中进行水热处理,再将水热处理产物在惰性气氛下焙烧,HF溶液脱除原位自组装形成的模板,得到类花瓣状碳纳米片。

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GB/T 7714 邱文革 , 陈云 , 孙家远 et al. 一种类花瓣状碳纳米片的制备方法 : CN201910862274.4[P]. | 2019-09-12 .
MLA 邱文革 et al. "一种类花瓣状碳纳米片的制备方法" : CN201910862274.4. | 2019-09-12 .
APA 邱文革 , 陈云 , 孙家远 , 白广梅 , 何洪 . 一种类花瓣状碳纳米片的制备方法 : CN201910862274.4. | 2019-09-12 .
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一种同时去除NH3逃逸和CO的催化剂及制备 incoPat
专利 | 2019-07-15 | CN201910635070.7
摘要&关键词 引用

摘要 :

一种同时去除NH3逃逸和CO的催化剂及制备,属于催化技术领域。主要解决烧结机烟气中CO排放以及氨逃逸的问题。本发明采用金属氧化物等体积浸渍法制备负载贵金属铂的催化剂,在6%富氧条件下测试不同浓度的CO含量以及CO转换率,在6%富氧条件下下测试氨气的氧化率以及氮气选择性,较好的解决了烧结机烟气中氨和CO排放问题。

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GB/T 7714 何洪 , 何俊达 , 邱文革 et al. 一种同时去除NH3逃逸和CO的催化剂及制备 : CN201910635070.7[P]. | 2019-07-15 .
MLA 何洪 et al. "一种同时去除NH3逃逸和CO的催化剂及制备" : CN201910635070.7. | 2019-07-15 .
APA 何洪 , 何俊达 , 邱文革 , 朱红太 , 吴锐 . 一种同时去除NH3逃逸和CO的催化剂及制备 : CN201910635070.7. | 2019-07-15 .
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一种以Ce-MOF为前驱体的铈基复合氧化物低温SCR催化剂制备方法 incoPat
专利 | 2019-12-26 | CN201911374396.5
摘要&关键词 引用

摘要 :

一种以Ce‑MOF为前驱体的铈基复合氧化物低温SCR催化剂制备方法,属于催化剂制备技术领域。包含以下具体步骤:将均苯三酸(BTC)溶解于有机溶剂中,加入铈盐溶液,在适当温度下搅拌15min,得到Ce‑MOF样品;将可溶性修饰金属源溶解于乙醇中,加入Ce‑MOF,一定温度下搅拌12h,得到复合氧化物催化剂的前体;对前体焙烧并研磨,得到CuO‑CeO2、Fe2O3‑CeO2低温SCR催化剂。本发明利用Ce‑MOF高的比表面积、有序的孔道结构及较强的吸附能力,实现CuO或Fe2O3在CeO2上的高度分散,从而显著提高复合氧化物的低温SCR反应催化活性。

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GB/T 7714 邱文革 , 王佳丽 , 何洪 et al. 一种以Ce-MOF为前驱体的铈基复合氧化物低温SCR催化剂制备方法 : CN201911374396.5[P]. | 2019-12-26 .
MLA 邱文革 et al. "一种以Ce-MOF为前驱体的铈基复合氧化物低温SCR催化剂制备方法" : CN201911374396.5. | 2019-12-26 .
APA 邱文革 , 王佳丽 , 何洪 , 宋丽云 , 叶婧桐 , 张通 . 一种以Ce-MOF为前驱体的铈基复合氧化物低温SCR催化剂制备方法 : CN201911374396.5. | 2019-12-26 .
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CeTiO_x脱硝催化剂的抗硫中毒性能 CSCD PKU
期刊论文 | 2019 , 40 (02) , 350-357 | 高等学校化学学报
摘要&关键词 引用

摘要 :

分别以Ce_2(C_2O_4)_3和Ce(SO4)2为Ce前驱体,采用固相球磨法制备了Ce基选择性催化还原(SCR)脱硝催化剂CeTiO_x-A[以Ce_2(C_2O_4)_3为前驱体]和CeTiO_x-B[以Ce(SO4)2为前驱体].将2个催化剂分别在体积分数为0. 15%的SO2的气氛下反应40和60 h,得到高硫条件下SCR反应后的CeTiO_x催化剂,分别记为40CeTiOx-A,60CeTiOx-A,40CeTiOx-B和60CeTiOx-B.考察了反应前后催化剂的NH_3-SCR反应活性.采用X射线衍射(XRD)、X射线荧光光谱(XRF)、比表面积(BET)测试、H2程序升温还原...

关键词 :

CeTiOx催化剂 CeTiOx催化剂 Lewis酸性位 Lewis酸性位 固相球磨法 固相球磨法 选择性催化还原 选择性催化还原

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GB/T 7714 朱红太 , 宋丽云 , 何洪 et al. CeTiO_x脱硝催化剂的抗硫中毒性能 [J]. | 高等学校化学学报 , 2019 , 40 (02) : 350-357 .
MLA 朱红太 et al. "CeTiO_x脱硝催化剂的抗硫中毒性能" . | 高等学校化学学报 40 . 02 (2019) : 350-357 .
APA 朱红太 , 宋丽云 , 何洪 , 尹孟奇 , 程杰 , 孙炎明 et al. CeTiO_x脱硝催化剂的抗硫中毒性能 . | 高等学校化学学报 , 2019 , 40 (02) , 350-357 .
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