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学者姓名：卢岳
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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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摘要 ：
Bright and efficient blue emission is key to further development of metal halide perovskite light-emitting diodes. Although modifying bromide/chloride composition is straightforward to achieve blue emission, practical implementation of this strategy has been challenging due to poor colour stability and severe photoluminescence quenching. Both detrimental effects become increasingly prominent in perovskites with the high chloride content needed to produce blue emission. Here, we solve these critical challenges in mixed halide perovskites and demonstrate spectrally stable blue perovskite light-emitting diodes over a wide range of emission wavelengths from 490 to 451 nanometres. The emission colour is directly tuned by modifying the halide composition. Particularly, our blue and deep-blue light-emitting diodes based on three-dimensional perovskites show high EQE values of 11.0% and 5.5% with emission peaks at 477 and 467 nm, respectively. These achievements are enabled by a vapour-assisted crystallization technique, which largely mitigates local compositional heterogeneity and ion migration.
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| GB/T 7714 | Karlsson Max , Yi Ziyue , Reichert Sebastian et al. Mixed halide perovskites for spectrally stable and high-efficiency blue light-emitting diodes. [J]. | Nature communications , 2021 , 12 (1) : 361 . |
| MLA | Karlsson Max et al. "Mixed halide perovskites for spectrally stable and high-efficiency blue light-emitting diodes." . | Nature communications 12 . 1 (2021) : 361 . |
| APA | Karlsson Max , Yi Ziyue , Reichert Sebastian , Luo Xiyu , Lin Weihua , Zhang Zeyu et al. Mixed halide perovskites for spectrally stable and high-efficiency blue light-emitting diodes. . | Nature communications , 2021 , 12 (1) , 361 . |
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摘要 ：
In recent years, the photoelectronic conversion efficiency (PCE) of organic-inorganic halide perovskite solar cell (PSC) devices has been improved greatly. However, these devices are not very stable, and it is hard to avoid the effect of visible or ultraviolet (UV) light on the performance decay of the organic-inorganic halide perovskite devices, and there is rare report on the evolution process of the microstructure of PSCs under the light illumination, let along discussing on the different degradation mechanism of PSCs between the UV and visible light soaking. To address these scientific issues, in this study, we compared the performance evolution of CH3NH3PbI3 (MAPbI(3)) based PSCs during the UV and visible light irradiation. The experimental results show that the perovskite layer has been photodegraded from MAPbI3 into an amorphous phase under the white light LED soaking. Meanwhile, the migration of Au element from the electrode into the interface between MAPbI(3) and SnO2 layers can also be captured. As comparing the kinetics of redox reaction of Au, we found that the formation rate of Au nanoparticle mass in PSCs under UV light irradiation is almost 30 times higher than that under visible light illumination. Considering on the different characteristics of microstructure evolution in PSCs under the UV and visible light irradiation, and theoretically analyzing the energy level of each functional layers in the device, the results confirm that UV light is easy to be adsorbed by electron transportation layer (ETL) of SnO2 to excite the electron-hole pairs, while the photo-excited holes have a low energy level of -8.4 eV, which could oxidize the iodide ions (I-) into atomic iodine (I atom). The I atoms would diffuse into the spiro-OMeTAD layer and metal electrode interface. Due to its strong oxidation property, the I atom would not only destroy the spiro-OMeTAD layer, but also oxidize the Au metal electrode into AuI, which accelerated the generation of Au+. However, under the illumination of visible light, it is hard to excite the electron-hole pairs in SnO2, which prevents the damage on the functional interfaces, and the transportation energy barrier is unchanged. So, the open circuit voltage (V-oc) has a long-term photo-stability. However, the short-circuit current density (J(sc)) decreased rapidly under visible light illumination, which is mostly ascribed to the changes of charge mobility resulting from the migration of Au element and photodecomposition of MAPbI(3) layer. All these results give a new insight to understand the photo-instability of PSC.
关键词 ：
electron microscopy electron microscopy light illumination light illumination migration dynamics migration dynamics perovskite solar cell perovskite solar cell photo-degradation photo-degradation
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| GB/T 7714 | Lu, Yue , Ge, Yang , Sui, Manling . Different Degradation Mechanism of CH3NH3PbI3 Based Perovskite Solar Cells under Ultraviolet and Visible Light Illumination [J]. | ACTA CHIMICA SINICA , 2021 , 79 (3) : 344-352 . |
| MLA | Lu, Yue et al. "Different Degradation Mechanism of CH3NH3PbI3 Based Perovskite Solar Cells under Ultraviolet and Visible Light Illumination" . | ACTA CHIMICA SINICA 79 . 3 (2021) : 344-352 . |
| APA | Lu, Yue , Ge, Yang , Sui, Manling . Different Degradation Mechanism of CH3NH3PbI3 Based Perovskite Solar Cells under Ultraviolet and Visible Light Illumination . | ACTA CHIMICA SINICA , 2021 , 79 (3) , 344-352 . |
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摘要 ：
Here, we fabricated In2O3(ZnO)(m) (IZO) superlattice microplates with hexagon morphologies by the substrate-free optical vapor supersaturated precipitation. The IZO microplates possessed a superlattice structure with a large m number, i.e., m = 23, consisting of layered alternating stacks of octahedral InO2- as inversion boundaries and layered InZnmOm+1+ as a zig-zag modulated pattern. The Raman peak at 613 cm(-1) confirmed the superlattice of the IZO microplates. The broad asymmetric excitonic photoluminescence (PL) emission with the photon energy of 3.236 eV indicated the heavy doping of indium in the IZO, resulting a redshift of similar to 32 meV from the near-band-edge emission. The unusual negative thermal quenching of PL intensity was also observed. Moreover, the anisotropic electrical properties of the IZO superlattice microplates were manifested, for the first time, where the in-plane conductivity was two orders of magnitude higher than out-plane one. The present work provided new insight into the free-standing IZO superlattice microdevices for future optoelectronic applications.
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| GB/T 7714 | Liao, Yimin , Yan, Yinzhou , Yang, Lixue et al. Free-standing In2O3(ZnO)(m) superlattice microplates grown by optical vapor supersaturated precipitation [J]. | JOURNAL OF MATERIALS SCIENCE , 2021 , 56 (24) : 13723-13735 . |
| MLA | Liao, Yimin et al. "Free-standing In2O3(ZnO)(m) superlattice microplates grown by optical vapor supersaturated precipitation" . | JOURNAL OF MATERIALS SCIENCE 56 . 24 (2021) : 13723-13735 . |
| APA | Liao, Yimin , Yan, Yinzhou , Yang, Lixue , Pan, Yongman , Lu, Yue , Chen, Fei et al. Free-standing In2O3(ZnO)(m) superlattice microplates grown by optical vapor supersaturated precipitation . | JOURNAL OF MATERIALS SCIENCE , 2021 , 56 (24) , 13723-13735 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
2D-layered transition metal dichalcogenides (TMDCs) have attracted tremendous interest as candidate material for next-generation nanoelectronics because of their atomically layered lattices. However, their charge modulation based on chemical doping is commonly inefficient owing to the ultrathin crystal structures, which therefore limits their applications in electronic devices. Here, a photoinduced electrostatic modulation of WSe2 field-effect transistor with charge-trapping layers of hexagonal-BN (h-BN)/SiO2 is achieved for both n- and p-type polarities, which demonstrates a large on/off ratio exceeding 10(6). This electrostatic modulation of WSe2 performs a reversible and high carrier regulation from an electron density of 3 x 10(12) cm(-2) to a hole density of 1.5 x 10(12) cm(-2). Through this facile and powerful approach, a p-n homojunction rectifier and a complementary metal-oxide-semiconductor inverter are successfully prepared and perform the functions of AC-DC conversion and cascadable logic NOT. Consequently, these results provide a huge potential for wide applications of TMDC-based logic electronics.
关键词 ：
(2) (2) complementary metal-oxide-semiconductor (CMOS) inverter complementary metal-oxide-semiconductor (CMOS) inverter photoinduced electrostatic modulation photoinduced electrostatic modulation p-n homojunction p-n homojunction rectifier rectifier WSe WSe
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| GB/T 7714 | Li, Songyu , Chen, Xiaoqing , Zhang, Zeyu et al. Light-Rewritable Logic Devices Based on Van der Waals Heterostructures [J]. | ADVANCED ELECTRONIC MATERIALS , 2021 . |
| MLA | Li, Songyu et al. "Light-Rewritable Logic Devices Based on Van der Waals Heterostructures" . | ADVANCED ELECTRONIC MATERIALS (2021) . |
| APA | Li, Songyu , Chen, Xiaoqing , Zhang, Zeyu , Li, Xuhong , Deng, Wenjie , Liu, Famin et al. Light-Rewritable Logic Devices Based on Van der Waals Heterostructures . | ADVANCED ELECTRONIC MATERIALS , 2021 . |
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摘要 ：
Theoretical studies have shown that surface terminations, such as MAI or PbI layers, greatly affect the environmental stability of organic-inorganic perovskite. However, until now, there has been little effort to experimentally detect the existence of MAI or PbI terminations on MAPbI3 grains, let alone disclose their effects on the humidity degradation pathway of perovskite solar cell. Here, we successfully modified and detected the surface terminations of MAI and PbI species on polycrystalline MAPbI3 films. MAI-terminated perovskite film followed the moisture degradation process from MAPbI3 to hydrate MAPbI3 ⋅H2 O and then into PbI2 , with penetration of water molecules being the main driving force leading to the degradation of MAPbI3 layer by layer. In contrast, for the PbI-terminated perovskite film in a humid atmosphere, a deprotonation degradation pathway was confirmed, in which the film preferentially degraded directly from MAPbI3 into PbI2 , here the iodine defects played a key role in promoting the dissociation of water molecules into OH- and further catalyzing the decomposition of perovskite.
关键词 ：
deprotonation decomposition deprotonation decomposition humidity degradation humidity degradation hydration processes hydration processes perovskite solar cells perovskite solar cells surface termination surface termination
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| GB/T 7714 | Lu Yue , Si Zhixiang , Liu Hongpeng et al. In CH3 NH3 PbI3 Perovskite Film, the Surface Termination Layer Dominates the Moisture Degradation Pathway. [J]. | Chemistry , 2021 , 27 (11) : 3729-3736 . |
| MLA | Lu Yue et al. "In CH3 NH3 PbI3 Perovskite Film, the Surface Termination Layer Dominates the Moisture Degradation Pathway." . | Chemistry 27 . 11 (2021) : 3729-3736 . |
| APA | Lu Yue , Si Zhixiang , Liu Hongpeng , Ge Yang , Hu Jingcong , Zhang Zeyu et al. In CH3 NH3 PbI3 Perovskite Film, the Surface Termination Layer Dominates the Moisture Degradation Pathway. . | Chemistry , 2021 , 27 (11) , 3729-3736 . |
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摘要 ：
We have explored that the phase transition of colloidal perovskite CsPbI3 quantum dot (QD) during synthesis and purification processes are mainly induced by the increase of particle size (crystal growth). To stabilize the cubic structure, the metal cations Mn2+ and Zn2+ with smaller ion radius than that of Pb2+ were doped into the QD. These not only caused the lattice constriction and increased the Goldschmidt tolerance factor of perovskite structure, but also enhanced the Pb-I binding energy, all of which improve the tolerance of phase transition induced by the growth of crystal size during purification process. Besides, the doped QD solutions and films show fewer defects and lower trap density than those of the undoped samples, owing to the alleviation of lattice distortion. The results reveal that the Zn-doped and Mn-doped QD solar cells display power conversion efficiency of 13.5% and 12.0%, respectively, much higher than that of the control device.
关键词 ：
Doping Doping Perovskite quantum dots Perovskite quantum dots Phase transition Phase transition Solar cells Solar cells Structure stability Structure stability
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| GB/T 7714 | Huang, Xin , Hu, Jingcong , Bi, Chenghao et al. B-site doping of CsPbI3 quantum dot to stabilize the cubic structure for high-efficiency solar cells [J]. | CHEMICAL ENGINEERING JOURNAL , 2021 , 421 . |
| MLA | Huang, Xin et al. "B-site doping of CsPbI3 quantum dot to stabilize the cubic structure for high-efficiency solar cells" . | CHEMICAL ENGINEERING JOURNAL 421 (2021) . |
| APA | Huang, Xin , Hu, Jingcong , Bi, Chenghao , Yuan, Jifeng , Lu, Yue , Sui, Manling et al. B-site doping of CsPbI3 quantum dot to stabilize the cubic structure for high-efficiency solar cells . | CHEMICAL ENGINEERING JOURNAL , 2021 , 421 . |
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摘要 ：
Metallic nanowires usually exhibit ultrahigh strength but suffered low ductility. Previous studies on pure metals suggested this strength-ductility trade-off results from limiting the dislocation activities. However, it is unclear whether such deformation model is valid for a solid solution alloy as well. Here, for the first time, the atomic-scale deformation process of AuCu nanowires with size of-16 nm was investigated in situ. The results show the NWs exhibit superplasticity (-185%) and high strengths (-2.98 GPa) at room temperature. It was discovered that superplasticity originates from continuous full dislocation nucleation and disappearance, as well as dislocation dipole formation and annihilation etc., which differ from the previous studies in pure metals. The observed full dislocation activities, also different from the ones in the previous studies, suggested that, as the size of the metals is below-100 nm, their deformation should be governed by partial dislocation and twinning. (c) 2021 Elsevier Ltd. All rights reserved.
关键词 ：
Mechanical property Mechanical property Plastic deformation Plastic deformation Strength-ductility trade-off Strength-ductility trade-off Transmission electron microscopy Transmission electron microscopy
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| GB/T 7714 | Fu, L. , Yang, C. , Wei, R. et al. In situ atomic-scale observation of AuCu alloy nanowire with superplasticity and high strength at room temperature [J]. | MATERIALS TODAY NANO , 2021 , 15 . |
| MLA | Fu, L. et al. "In situ atomic-scale observation of AuCu alloy nanowire with superplasticity and high strength at room temperature" . | MATERIALS TODAY NANO 15 (2021) . |
| APA | Fu, L. , Yang, C. , Wei, R. , Pei, X. , Teng, J. , Kong, D. et al. In situ atomic-scale observation of AuCu alloy nanowire with superplasticity and high strength at room temperature . | MATERIALS TODAY NANO , 2021 , 15 . |
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摘要 ：
Capturing the photolysis process of archetypal perovskite materials (such as methylammonium lead triiodide, MAPbI(3)) into metallic Pb-0 is fundamentally important to understand the photodegradation pathway of organic-inorganic hybrid perovskites (OIHPs). In this study, the photodecomposition pathway of a MAPbI(3) film in an atmospheric argon (Ar) gas environment was quasi-in situ studied comprehensively. Under light illumination, the decomposition of the perovskite film is first triggered at the grain boundaries, along with an obvious generation of metallic lead (Pb-0) nanoparticles. Then, the degradation sites extend into the inner MAPbI(3) grains. By calculating the growth kinetics of the Pb-0 enriched nanoparticles, we can find that it strictly obeys an interfacial diffusion-controlled growth model. Atomic resolution high angle annular dark-field (HAADF) characterization confirms that the Pb-0 enriched nanoparticles are with Pb@PbI2-x (x approximate to 0.4) core-shell structures, while the interface between crystalline MAPbI(3) and amorphous PbI2-x controls the photodegradation pathway of perovskite films. To the best of our knowledge, this is the first time to directly observe the photolysis process of perovskite films in a practical environment (Ar gas and light illumination), particularly with nano or even atomic-scale resolution. Furthermore, the discovery of the interfacial-controlled photodegradation pathway of MAPbI(3) into amorphous PbI2-x and then into Pb@PbI2-x aggregates has never been elucidated before.
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| GB/T 7714 | Lu, Yue , Hu, Jingcong , Ge, Yang et al. Decisive influence of amorphous PbI2-x on the photodegradation of halide perovskites [J]. | JOURNAL OF MATERIALS CHEMISTRY A , 2021 , 9 (26) : 15059-15067 . |
| MLA | Lu, Yue et al. "Decisive influence of amorphous PbI2-x on the photodegradation of halide perovskites" . | JOURNAL OF MATERIALS CHEMISTRY A 9 . 26 (2021) : 15059-15067 . |
| APA | Lu, Yue , Hu, Jingcong , Ge, Yang , Tian, Bohai , Zhang, Zeyu , Sui, Manling . Decisive influence of amorphous PbI2-x on the photodegradation of halide perovskites . | JOURNAL OF MATERIALS CHEMISTRY A , 2021 , 9 (26) , 15059-15067 . |
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摘要 ：
Engineering the local coordination environment in atomically dispersed catalyst has proven to be a prospective route to boost catalyst performance for hydrogen evolution reaction (HER). Herein, we present the utilization of local lattice distortion of TiO2 support to regulate the local coordination environment and electronic structures of atomically dispersed Pt catalysts, resulting in the enhanced performance toward HER. Spectral analysis uncovers an elongated Pt–O bond length, lower Pt–O coordination numbers, as well as less electron holes residing in Pt 5d orbitals for Pt species on distorted TiO2. Density functional theory (DFT) calculation reveal that the variation might weaken the hydrogen adsorption on Pt sites and cause the optimized ΔG value of H∗. As a result, the atomically dispersed Pt catalyst displays superior HER mass activity (62.34 A mg−1 Pt) and the highest turnover frequency (TOF) (56.1H2·s−1) at the 50 mV overpotential in an acid media that are 18.7 and 5.56 times higher than commercial Pt/C. The work should create a new avenue in manipulating the local coordination environment of catalysts via the lattice distortion of the support, and in pursuing desired catalytic performance. © 2021 Elsevier Ltd
关键词 ：
Bond length Bond length Catalyst supports Catalyst supports Coordination reactions Coordination reactions Density functional theory Density functional theory Electronic structure Electronic structure Gas adsorption Gas adsorption Hydrogen Hydrogen Hydrogen evolution reaction Hydrogen evolution reaction Oxide minerals Oxide minerals Platinum Platinum Spectrum analysis Spectrum analysis Titanium dioxide Titanium dioxide
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| GB/T 7714 | Cheng, Xing , Lu, Yue , Zheng, Lirong et al. Engineering local coordination environment of atomically dispersed platinum catalyst via lattice distortion of support for efficient hydrogen evolution reaction [J]. | Materials Today Energy , 2021 , 20 . |
| MLA | Cheng, Xing et al. "Engineering local coordination environment of atomically dispersed platinum catalyst via lattice distortion of support for efficient hydrogen evolution reaction" . | Materials Today Energy 20 (2021) . |
| APA | Cheng, Xing , Lu, Yue , Zheng, Lirong , Pupucevski, Max , Li, Hongyi , Chen, Ge et al. Engineering local coordination environment of atomically dispersed platinum catalyst via lattice distortion of support for efficient hydrogen evolution reaction . | Materials Today Energy , 2021 , 20 . |
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