1
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Jia M, Jin C, Wang B, Wang B. Ferroelectric polarization promotes a CdS/In 2Se 3 heterostructure for photocatalytic water splitting. Phys Chem Chem Phys 2024; 26:16637-16645. [PMID: 38808387 DOI: 10.1039/d3cp05551e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
The rapid recombination of photogenerated electrons and holes greatly limits the efficiency of photocatalyst based on semiconductor. In order to address this issue, we predicted a novel ferroelectric polarized heterojunction photocatalyst, CdS/In2Se3, which enables the spontaneous overall water splitting reaction. The CdS/In2Se3 heterojunction exhibits a band-edge staggered alignment and it is easy to form a direct Z-scheme charge transfer pathway. Besides, the built-in electric field (Eint) in the CdS/In2Se3 heterojunction promoted the charge transfer of CdS/In2Se3, leading to an improved separating efficiency of photo-generated carriers. Moreover, the vertical intrinsic polarized electric field (Ep) not only alters the position of the band edge but also reduces the bandgap limitations commonly associated with photocatalytic materials. Furthermore, the CdS/In2Se3 heterojunctions demonstrate separate catalytic activity for the hydrogen evolution reaction (HER) on the surface of the CdS monolayer and oxygen evolution reaction (OER) on the surface of In2Se3, respectively. Notably, the CdS/In2Se3-down configuration enables spontaneous photocatalytic water splitting in pH = 7, while the CdS/In2Se3-up configuration efficiently facilitates the HER process. This study highlights the significant advantages of CdS/In2Se3 heterojunctions as photocatalytic materials, offering unique insights into the development and research of this promising heterojunction architecture.
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Affiliation(s)
- Minglei Jia
- School of Electro-Mechanical Engineering, Zhongyuan Institute of Science and Technology, Xuchang 461000, China.
| | - Chao Jin
- Institute for Computational Materials Science, Joint Center for Theoretical Physics (JCTP), School of Physics and Electronics, Henan University, Kaifeng, 475004, China.
| | - Baoshan Wang
- Zibo Huatian Rubber Plastic Technology CO. LTD, Zibo, 256410, China
| | - Bing Wang
- Institute for Computational Materials Science, Joint Center for Theoretical Physics (JCTP), School of Physics and Electronics, Henan University, Kaifeng, 475004, China.
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2
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Chowdhury S, Sarkar P, Gupta BC. Can P 3S and C 3S monolayers be used as anode materials in metal-ion batteries? An answer from first-principles study. Phys Chem Chem Phys 2024; 26:16240-16252. [PMID: 38804524 DOI: 10.1039/d3cp06014d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
With the urgent need for efficient energy storage devices, significant attention has been directed to researching and developing promising anode materials for metal-ion batteries. Through density functional study, we successfully predicted the electrochemical performance of P3S and C3S monolayers for the first time, which could be used in alkali metal (Li, Na, and K)-ion batteries. Our study examines the energetic, dynamic, and thermal stabilities of pristine monolayers. The electronic structures of the pristine nanosheets are wide-gap semiconductors. After single metalation on the monolayers, the composite systems become metallic. Charge-density difference (CDD) analysis indicates that charge transfer occurs from alkali metal atoms to the P3S and C3S monolayers, and Bader charge analysis quantifies the amount of charge transfer. We analyzed how readily a single adatom diffuses within the 2D structures. One example is the diffusion of K on C3S, which has a low barrier value of 0.06 eV and seems practically barrierless. Our predicted composite systems report considerable theoretical storage capacity (C); for example, hexalayer K-adsorbed C3S shows a storage capacity of 1182.79 mA h g-1. The estimated open-circuit voltage (OCV) values suggest that the C3S monolayer is a promising anode material for Li-, Na-, and K-ion batteries, whereas the P3S monolayer is suitable as a cathode material for Li-, Na-, and K-ion batteries.
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Affiliation(s)
| | - Pranab Sarkar
- Department of Chemistry, Visva-Bharati, Santiniketan 731235, India
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3
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Li H, Li C, Liu W, Yao Y, Li Y, Zhang B, Qiu C. Photo-Induced C 1 Substitution Using Methanol as a C 1 Source. CHEMSUSCHEM 2023; 16:e202300377. [PMID: 37140478 DOI: 10.1002/cssc.202300377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 05/04/2023] [Accepted: 05/04/2023] [Indexed: 05/05/2023]
Abstract
The development of sustainable and efficient C1 substitution methods is of central interest for organic synthesis and pharmaceuticals production, the methylation motifs bound to a carbon, nitrogen, or oxygen atom widely exist in natural products and top-selling drugs. In the past decades, a number of methods involving green and inexpensive methanol have already been disclosed to replace industrial hazardous and waste-generating C1 source. Among the various efforts, photochemical strategy is considered as a "renewable" alternative that shows great potential to selectively activate methanol to achieve a series of C1 substitutions at mild conditions, typically C/N-methylation, methoxylation, hydroxymethylation, and formylation. Herein the recent advances in selective transformation of methanol to various C1 functional groups via well-designed photochemical systems involving different types of catalysts or not is systematically reviewed. Both the mechanism and corresponding photocatalytic system were discussed and classified on specific methanol activation models. Finally, the major challenges and perspectives are proposed.
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Affiliation(s)
- Hongmei Li
- College of Mechanical Engineering, College of Food and Bioengineering, Chengdu University, Chengdu, 610106, P.R. China
| | - Chao Li
- College of Mechanical Engineering, College of Food and Bioengineering, Chengdu University, Chengdu, 610106, P.R. China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 311215, P.R. China
| | - Wei Liu
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P.R. China
| | - Yanling Yao
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, 516007, P.R. China
| | - Yuanhua Li
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, 516007, P.R. China
| | - Bing Zhang
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 311215, P.R. China
- State Key Laboratory of Chemical Engineering, Institute of Pharmaceutical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, P.R. China
| | - Chuntian Qiu
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 311215, P.R. China
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P.R. China
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4
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Gu D, Qin W, Hu S, Li R, Chen X, Tao X, Ouyang Y, Zhu W. Enhanced Photocatalytic Activity of Two-Dimensional Polar Monolayer SiTe for Water-Splitting via Strain Engineering. Molecules 2023; 28:molecules28072971. [PMID: 37049734 PMCID: PMC10096314 DOI: 10.3390/molecules28072971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/19/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023] Open
Abstract
A two-dimensional (2D) polar monolayer with a polarization electric field can be used as a potential photocatalyst. In this work, first principle calculations were used to investigate the stability and photocatalytic properties of 2D polar monolayer SiTe as a potential promising catalyst in water-splitting. Our results show that the 2D polar monolayer SiTe possesses an indirect band gap of 2.41 eV, a polarization electric field from the (001) surface to the (001¯) surface, a wide absorption region, and a suitable band alignment for photocatalytic water-splitting. We also discovered that the photocatalytic activity of 2D polar monolayer SiTe could be effectively tuned through strain engineering. Additionally, strain engineering, particularly compressive strain in the range from −1% to −3%, can enhance the photocatalytic activity of 2D polar monolayer SiTe. Overall, our findings suggest that 2D polar monolayer SiTe has the potential to be a promising catalyst for photocatalytic water-splitting using visible light.
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Affiliation(s)
- Di Gu
- Department of Physics, School of Science, Guangdong University of Petrochemical Technology, Maoming 525000, China; (D.G.)
| | - Wen Qin
- Department of Physics, School of Science, Guangdong University of Petrochemical Technology, Maoming 525000, China; (D.G.)
| | - Sumei Hu
- Department of Physics, School of Science, Guangdong University of Petrochemical Technology, Maoming 525000, China; (D.G.)
| | - Rong Li
- Department of Physics, School of Science, Guangdong University of Petrochemical Technology, Maoming 525000, China; (D.G.)
| | - Xingyuan Chen
- Department of Physics, School of Science, Guangdong University of Petrochemical Technology, Maoming 525000, China; (D.G.)
- Correspondence: (X.C.); (W.Z.)
| | - Xiaoma Tao
- School of Physical Science and Technology, Guangxi University, Nanning 530004, China
| | - Yifang Ouyang
- School of Physical Science and Technology, Guangxi University, Nanning 530004, China
| | - Weiling Zhu
- Department of Physics, School of Science, Guangdong University of Petrochemical Technology, Maoming 525000, China; (D.G.)
- Correspondence: (X.C.); (W.Z.)
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5
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One Stone Two Birds: Utilization of Solar Light for Simultaneous Selective Phenylcarbinol Oxidation and H2 Production over 0D/2D-3D Pt/In2S3 Schottky Junction. Catalysts 2023. [DOI: 10.3390/catal13030461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023] Open
Abstract
Precise regulation and control solar-light-driven charges photoexcited on photocatalysts for separation-transfer and target redox reactions is an attractive and challenging pathway toward sustainability. Herein, 0D/2D-3D Pt/In2S3 Schottky junction was fabricated for simultaneous selective phenylcarbinol conversion into value-added aldehydes and production of clean energy H2 by directly utilizing photoexcited holes and electrons in one reaction system under mild reaction conditions. In contrast to pure water splitting and pure In2S3, the reaction thermodynamics and kinetics of H2 evolution on the Pt/In2S3 were significantly enhanced. The optimized 0.3% Pt/In2S3 exhibited the highest and most stable photocatalytic activity with 22.1 mmol g−1 h−1 of H2 production rate and almost 100% selectivity of benzaldehyde production. Notably, this dual-function photocatalysis also exhibited superiority in contrast to sacrificial-agent H2 evolution reactions such as lactic acid, Na2S, methanol and triethanolamine. The turnover frequency (TOF) could reach up to ~2394 h−1. The Pt clusters anchored at the electron location and strong metal-support interactions (SMSI) between Pt and In2S3 synergistically improved the spatial charge separation and directional transportation (~90.1% of the charge transport efficiency could be achieved over the Pt/In2S3 hybrid), and thus result in significant enhancement of photocatalytic H2 evolution with simultaneous benzaldehyde production.
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6
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Wang Z, Qin H, Chen J, Cai X, Kong P, Liu Z, Sun B, Wang H, Ni Y, Chen Y. A semiconductor Sc 2S 3 monolayer with ultrahigh carrier mobility for UV blocking filter application. Phys Chem Chem Phys 2023; 25:5550-5558. [PMID: 36723364 DOI: 10.1039/d2cp04973b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
For humans, ultraviolet (UV) light from sun is harmful to our eyes and eye-related cells. This detrimental fact requires scientists to search for a material that can efficiently absorb UV light while allowing lossless transmission of visible light. Using an unbiased first-principles swarm intelligence structure search, we explored two-dimensional (2D) Sc-S crystals and identified a novel Sc2S3 monolayer with good thermal and dynamical stability. The optoelectronic property simulations revealed that the Sc2S3 monolayer has a wide indirect bandgap (3.05 eV) and possesses an ultrahigh carrier mobility (2.8 × 103 cm2 V-1 s-1). Remarkably, it has almost transparent visible light absorption, while it exhibits an ultrahigh absorption coefficient up to × 105 cm-1 in the ultraviolet region. Via the application of biaxial strain and thickness modulation, the UV light absorption coefficients of Sc2S3 can be further improved. These findings manifest an attractive UV blocking optoelectronic characteristic of the Sc2S3 configuration as a prototypical nanomaterial for the potential application in UV blocking filters.
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Affiliation(s)
- Zheng Wang
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China.
| | - Haifei Qin
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jiao Chen
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China.
| | - Xinyong Cai
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China.
| | - Panlong Kong
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China.
| | - Zhen Liu
- Department of Physics, Beijing Normal University, Beijing 100875, China.
| | - Bai Sun
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, Shaanxi 710049, P. R. China
| | - Hongyan Wang
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China.
| | - Yuxiang Ni
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China.
| | - Yuanzheng Chen
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China.
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7
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Gao J, Tang M, Zhang X, Yang G. Conductive C 3NS Monolayer with Superior Properties for K Ion Batteries. J Phys Chem Lett 2022; 13:12055-12060. [PMID: 36542526 DOI: 10.1021/acs.jpclett.2c03258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
K-ion batteries (KIBs) have been considered as appealing alternatives to Li ion batteries due to the high abundance of K, their high working voltages, and allowing the use of mature LIB technology. Thus far, anode materials that can meet the rigorous requirements of KIBs are still rather rare. Here, we have identified a desirable anode material, a metallic C3NS monolayer with high stability, a high storage capacity of 980 mAh/g, a low diffusion barrier of 0.24 eV, and a low open-circuit voltage of 0.36 V, through first-principles calculations. Metallic C3NSKn (n = 1-3) can ensure a high electron conductivity during the charge/discharge process. Valence electrons of the N atom in a triangular bipyramid configuration favor the formation of a planar edge-sharing hexagonal C4N2 unit and delocalized π bonding with C 2p electrons. The lone pair electrons of the S atom induce strong interactions with K atoms, facilitating storage capacity. These interesting properties make the C3NS monolayer a promising anode for KIBs.
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Affiliation(s)
- Jiayu Gao
- State Key Laboratory of Metastable Materials Science & Technology and Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao066004, China
| | - Meng Tang
- State Key Laboratory of Metastable Materials Science & Technology and Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao066004, China
- School of Physics and Electronics, Hunan University, Changsha410082, People's Republic of China
| | - Xiaohua Zhang
- State Key Laboratory of Metastable Materials Science & Technology and Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao066004, China
| | - Guochun Yang
- State Key Laboratory of Metastable Materials Science & Technology and Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao066004, China
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8
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Feng S, Zhao C, Zhao T, Tian Y, Yan L. Efficient reduction of nitrobenzene to aniline by metal-free B-doped graphdiyne. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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9
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Gao Q, Zhang L, Zheng C, Lei S, Li S, Hu Z. HSH-C10: A new quasi-2D carbon allotrope with a honeycomb-star-honeycomb lattice. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.11.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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10
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Theoretical insights into the diverse and tunable charge transport behavior of stilbene-based single-molecule junctions. Chem Phys 2022. [DOI: 10.1016/j.chemphys.2022.111478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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Wang J, Xu J, Wang Q, Liu Z, Zhang X, Zhang J, Lei S, Li Y, Mu J, Yang EC. NiO nanobelts with exposed {110} crystal planes as an efficient electrocatalyst for the oxygen evolution reaction. Phys Chem Chem Phys 2022; 24:6087-6092. [PMID: 35212332 DOI: 10.1039/d1cp05236e] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The electrocatalytic oxygen evolution reaction (OER) is necessary and challenging for converting renewable electricity into clean fuels, because of its complex proton coupled multielectron transfer process. Herein, we investigated the crystal plane effects of NiO on the electrocatalytic OER activity through combining experimental studies and theoretical calculations. The experimental results reveal that NiO nanobelts with exposed {110} crystal planes show much higher OER activity than NiO nanoplates with exposed {111} planes. The efficient OER activity of the {110} crystal planes comes from their intrinsically high catalytic ability and fast charge transfer kinetics. Density functional theory (DFT) shows that the {110} crystal planes possess a lower theoretical overpotential value for the OER, leading to a high electrocatalytic performance. This research broadens our vision to design efficient OER electrocatalysts by the selective exposure of specific crystal planes.
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Affiliation(s)
- Jiajun Wang
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, P. R. China.
| | - Jiaying Xu
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, P. R. China.
| | - Qian Wang
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, P. R. China.
| | - Zhongyi Liu
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, P. R. China.
| | - Xue Zhang
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, P. R. China.
| | - Jie Zhang
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, P. R. China.
| | - Shulai Lei
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang 441053, P. R. China
| | - Yan Li
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, P. R. China.
| | - Jianshuai Mu
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, P. R. China.
| | - En-Cui Yang
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, P. R. China.
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12
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Xu L, Meng J, Wang J, Wang L, Li Q. Hybrid density functional study on band structure engineering of ZnS(110) surface by anion–cation codoping for overall water splitting. NEW J CHEM 2022. [DOI: 10.1039/d2nj00905f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The (Ru + C)-codoped ZnS(110) surface is predicted to be a potential candidate for solar-driven water splitting.
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Affiliation(s)
- Lili Xu
- Hefei National Laboratory for Physical Sciences at the Microscale & Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jie Meng
- Hefei National Laboratory for Physical Sciences at the Microscale & Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jiajun Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Lu Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Qunxiang Li
- Hefei National Laboratory for Physical Sciences at the Microscale & Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
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13
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Ayele ST, Obodo KO, Asres GA. First-principles investigation of potential water-splitting photocatalysts and photovoltaic materials based on Janus transition-metal dichalcogenide/WSe 2 heterostructures. RSC Adv 2022; 12:31518-31524. [DOI: 10.1039/d2ra04964c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 10/26/2022] [Indexed: 11/05/2022] Open
Abstract
In order to evaluate their potential for use in photocatalytic water splitting and photovoltaic solar cells, WSe2/JTMDC heterostructures with various stacking patterns are built. For the intended uses, the materials show promise.
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Affiliation(s)
- Samuel Tilahun Ayele
- Center for Materials Engineering, Addis Ababa Institute of Technology, Addis Ababa University, School of Multi-disciplinary Engineering, Addis Ababa, 1000, Ethiopia
- Space Science and Geospatial Institute, Addis Ababa, Ethiopia
| | - Kingsley O. Obodo
- HySA Infrastructure Centre of Competence, Faculty of Engineering, North-West University, South Africa (NWU), 2531, South Africa
- National Institute of Theoretical and Computational Sciences, Johannesburg, 2000, South Africa
| | - Georgies Alene Asres
- Center for Materials Engineering, Addis Ababa Institute of Technology, Addis Ababa University, School of Multi-disciplinary Engineering, Addis Ababa, 1000, Ethiopia
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14
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Wang J, Shi M, Yi G, Wang L, Lei S, Xu K, Li S, Mu J. Computational prediction of Mo2@g-C6N6 monolayer as an efficient electrocatalyst for N2 reduction. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.12.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Yang G, Liu L, Shi S, Zhang X, Liang Y, Liang G. Size‐dependent Auger recombination in
CdSe
quantum dots studied by transient absorption spectroscopy. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202100161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gaoyuan Yang
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices Hubei University of Arts and Science Xiangyang China
| | - Liu Liu
- Xiangyang Sunvalor Aerospace Films Co., Ltd. Xiangyang China
| | - Shuang Shi
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices Hubei University of Arts and Science Xiangyang China
| | - Xin Zhang
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices Hubei University of Arts and Science Xiangyang China
| | - Ying Liang
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices Hubei University of Arts and Science Xiangyang China
| | - Guijie Liang
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices Hubei University of Arts and Science Xiangyang China
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16
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Two-Dimensional TeB Structures with Anisotropic Carrier Mobility and Tunable Bandgap. Molecules 2021; 26:molecules26216404. [PMID: 34770813 PMCID: PMC8588529 DOI: 10.3390/molecules26216404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 11/17/2022] Open
Abstract
Two-dimensional (2D) semiconductors with desirable bandgaps and high carrier mobility have great potential in electronic and optoelectronic applications. In this work, we proposed α-TeB and β-TeB monolayers using density functional theory (DFT) combined with the particle swarm-intelligent global structure search method. The high dynamical and thermal stabilities of two TeB structures indicate high feasibility for experimental synthesis. The electronic structure calculations show that the two structures are indirect bandgap semiconductors with bandgaps of 2.3 and 2.1 eV, respectively. The hole mobility of the β-TeB sheet is up to 6.90 × 102 cm2 V-1 s-1. By reconstructing the two structures, we identified two new horizontal and lateral heterostructures, and the lateral heterostructure presents a direct band gap, indicating more probable applications could be further explored for TeB sheets.
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17
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Tang M, Wang B, Lou H, Li F, Bergara A, Yang G. Anisotropic and High-Mobility C 3S Monolayer as a Photocatalyst for Water Splitting. J Phys Chem Lett 2021; 12:8320-8327. [PMID: 34428049 DOI: 10.1021/acs.jpclett.1c02430] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Taking into account the high conductivity and stability of carbon materials, such as graphene, and the strong polar covalent bonding character of main-group compounds, we explore potential 2D materials in the C-S binary system through first-principles structure search calculations. Herein, a hitherto unknown semiconducting C3S monolayer is identified, consisting of well-known n-biphenyl and S atom linked benzenes, exhibiting an obvious direction-dependent atomic arrangement. Thus, it exhibits anisotropic mechanical properties and carrier mobility. Its electron mobility reaches 2.14 × 104 cm2 V-1 s-1 in the b direction, along which n-biphenyl units are arranged, and is much higher than that in the well-used MoS2 monolayer and black phosphorus. Meanwhile, the C3S monolayer has high optical absorption coefficients (105 cm-1), high thermal and dynamical stabilities, and a moderate ability to split water. All these desirable properties make the C3S monolayer a promising candidate for applications in novel optoelectronic devices.
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Affiliation(s)
- Meng Tang
- Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China
- State Key Laboratory of Metastable Materials Science & Technology and Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao 066004, China
| | - Bo Wang
- Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China
- State Key Laboratory of Metastable Materials Science & Technology and Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao 066004, China
| | - Huan Lou
- Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China
- State Key Laboratory of Metastable Materials Science & Technology and Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao 066004, China
| | - Fei Li
- State Key Laboratory of Metastable Materials Science & Technology and Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao 066004, China
| | - Aitor Bergara
- Departamento de Física, Universidad del País Vasco-Euskal Herriko Unibertsitatea, UPV/EHU, 48080 Bilbao, Spain
- Donostia International Physics Center (DIPC), 20018 Donostia, Spain
- Centro de Física de Materiales CFM, Centro Mixto CSIC-UPV/EHU, 20018 Donostia, Spain
| | - Guochun Yang
- Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China
- State Key Laboratory of Metastable Materials Science & Technology and Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao 066004, China
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Rich B active centers in Penta-B2C as high-performance photocatalyst for nitrogen reduction. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.05.024] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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