1
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Korell L, Lauterbach S, Timm J, Wang L, Mellin M, Kundmann A, Wu Q, Tian C, Marschall R, Hofmann JP, Osterloh FE, Einert M. On the structural evolution of nanoporous optically transparent CuO photocathodes upon calcination for photoelectrochemical applications. NANOSCALE ADVANCES 2024; 6:2875-2891. [PMID: 38817433 PMCID: PMC11134239 DOI: 10.1039/d4na00199k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 04/11/2024] [Indexed: 06/01/2024]
Abstract
Copper oxides are promising photocathode materials for solar hydrogen production due to their narrow optical band gap energy allowing broad visible light absorption. However, they suffer from severe photocorrosion upon illumination, mainly due to copper reduction. Nanostructuring has been proven to enhance the photoresponse of CuO photocathodes; however, there is a lack of precise structural control on the nanoscale upon sol-gel synthesis and calcination for achieving optically transparent CuO thin film photoabsorbers. In this study, nanoporous and nanocrystalline CuO networks were prepared by a soft-templating and dip-coating method utilizing poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide) (Pluronic® F-127) as a structure-directing agent, resulting for the first-time in uniformly structured, crack-free, and optically transparent CuO thin films. The photoelectrochemical properties of the nanoporous CuO frameworks were investigated as a function of the calcination temperature and film thickness, revealing important information about the photocurrent, photostability, and photovoltage. Based on surface photovoltage spectroscopy (SPV), the films are p-type and generate up to 60 mV photovoltage at 2.0 eV (0.050 mW cm-2) irradiation for the film annealed at 750 °C. For these high annealing temperatures, the nanocrystalline domains in the thin film structure are more developed, resulting in improved electronic quality. In aqueous electrolytes with or without methyl viologen (as a fast electron acceptor), CuO films show cathodic photocurrents of up to -2.4 mA cm-2 at 0.32 V vs. RHE (air mass (AM) 1.5). However, the photocurrents were found to be entirely due to photocorrosion of the films and decay to near zero over the course of 20 min under AM 1.5 illumination. These fundamental results on the structural and morphological development upon calcination provide a direction and show the necessity for further (surface) treatment of sol-gel derived CuO photocathodes for photoelectrochemical applications. The study demonstrates how to control the size of nanopores starting from mesopore formation at 400 °C to the evolution of macroporous frameworks at 750 °C.
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Affiliation(s)
- Lukas Korell
- Surface Science Laboratory, Department of Materials and Earth Sciences, Technical University of Darmstadt Otto-Berndt-Straße 3 64287 Darmstadt Germany
| | - Stefan Lauterbach
- Institute for Applied Geosciences, Geomaterial Science, Technical University of Darmstadt Schnittspahnstraße 9 64287 Darmstadt Germany
| | - Jana Timm
- Department of Chemistry, University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Li Wang
- Department of Chemistry, University of California One Shields Avenue Davis CA 95616 USA
| | - Maximilian Mellin
- Surface Science Laboratory, Department of Materials and Earth Sciences, Technical University of Darmstadt Otto-Berndt-Straße 3 64287 Darmstadt Germany
| | - Anna Kundmann
- Department of Chemistry, University of California One Shields Avenue Davis CA 95616 USA
| | - Qingyang Wu
- Surface Science Laboratory, Department of Materials and Earth Sciences, Technical University of Darmstadt Otto-Berndt-Straße 3 64287 Darmstadt Germany
| | - Chuanmu Tian
- Surface Science Laboratory, Department of Materials and Earth Sciences, Technical University of Darmstadt Otto-Berndt-Straße 3 64287 Darmstadt Germany
| | - Roland Marschall
- Department of Chemistry, University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Jan P Hofmann
- Surface Science Laboratory, Department of Materials and Earth Sciences, Technical University of Darmstadt Otto-Berndt-Straße 3 64287 Darmstadt Germany
| | - Frank E Osterloh
- Department of Chemistry, University of California One Shields Avenue Davis CA 95616 USA
| | - Marcus Einert
- Surface Science Laboratory, Department of Materials and Earth Sciences, Technical University of Darmstadt Otto-Berndt-Straße 3 64287 Darmstadt Germany
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2
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Shi X, Wu Q, Cui C. Modulating WO 3 Crystal Orientation to Suppress Hydroxyl Radicals for Sustainable Solar Water Oxidation. ACS Catal 2023. [DOI: 10.1021/acscatal.2c05325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Xiaobing Shi
- Molecular Electrochemistry Laboratory, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Qianbao Wu
- Molecular Electrochemistry Laboratory, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Chunhua Cui
- Molecular Electrochemistry Laboratory, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
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3
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Li H, Lin C, Yang Y, Dong C, Min Y, Shi X, Wang L, Lu S, Zhang K. Boosting Reactive Oxygen Species Generation Using Inter-Facet Edge Rich WO 3 Arrays for Photoelectrochemical Conversion. Angew Chem Int Ed Engl 2023; 62:e202210804. [PMID: 36351869 DOI: 10.1002/anie.202210804] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Indexed: 11/11/2022]
Abstract
Water oxidation reaction leaves room to be improved in the development of various solar fuel productions, because of the kinetically sluggish 4-electron transfer process of oxygen evolution reaction. In this work, we realize reactive oxygen species (ROS), H2 O2 and OH⋅, formations by water oxidation with total Faraday efficiencies of more than 90 % by using inter-facet edge (IFE) rich WO3 arrays in an electrolyte containing CO3 2- . Our results demonstrate that the IFE favors the adsorption of CO3 2- while reducing the adsorption energy of OH⋅, as well as suppresses surface hole accumulation by direct 1-electron and indirect 2-electron transfer pathways. Finally, we present selective oxidation of benzyl alcohol by in situ using the formed OH⋅, which delivers a benzaldehyde production rate of ≈768 μmol h-1 with near 100 % selectivity. This work offers a promising approach to tune or control the oxidation reaction in an aqueous solar fuel system towards high efficiency and value-added product.
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Affiliation(s)
- He Li
- School of Materials Science and Engineering and School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Cheng Lin
- School of Materials Science and Engineering and School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Yilong Yang
- School of Materials Science and Engineering and School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Chaoran Dong
- School of Materials Science and Engineering and School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Yulin Min
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai, 200090, P. R. China
| | - Xiaoqin Shi
- School of Materials Science and Engineering and School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Luyang Wang
- College of New Materials and New Energies, Shenzhen Technology University, Shenzhen, Guangdong 518118, P. R. China
| | - Siyu Lu
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450000, P. R. China
| | - Kan Zhang
- School of Materials Science and Engineering and School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
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4
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Hu Y, Zhang BY, Haque F, Ren G, Ou JZ. Plasmonic metal oxides and their biological applications. MATERIALS HORIZONS 2022; 9:2288-2324. [PMID: 35770972 DOI: 10.1039/d2mh00263a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Metal oxides modified with dopants and defects are an emerging class of novel materials supporting the localized surface plasmon resonance across a wide range of optical wavelengths, which have attracted tremendous research interest particularly in biological applications in the past decade. Compared to conventional noble metal-based plasmonic materials, plasmonic metal oxides are particularly favored for their cost efficiency, flexible plasmonic properties, and improved biocompatibility, which can be important to accelerate their practical implementation. In this review, we first explicate the origin of plasmonics in dopant/defect-enabled metal oxides and their associated tunable localized surface plasmon resonance through the conventional Mie-Gans model. The research progress of dopant incorporation and defect generation in metal oxide hosts, including both in situ and ex situ approaches, is critically discussed. The implementation of plasmonic metal oxides in biological applications in terms of therapy, imaging, and sensing is summarized, in which the uniqueness of dopant/defect-driven plasmonics for inducing novel functionalities is particularly emphasized. This review may provide insightful guidance for developing next-generation plasmonic devices for human health monitoring, diagnosis and therapy.
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Affiliation(s)
- Yihong Hu
- School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia.
| | - Bao Yue Zhang
- School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia.
- School of Physics and Astronomy, Monash University, Clayton, Victoria 3800, Australia
| | - Farjana Haque
- School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia.
| | - Guanghui Ren
- School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia.
| | - Jian Zhen Ou
- School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia.
- School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
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5
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Selkirk A, Zeki Bas S, Cummins C, Aslan E, Patir IH, Zhussupbekova A, Prochukhan N, Borah D, Paiva A, Ozmen M, Morris MA. Block Copolymer Templated WO3 Surface Nanolines as Catalysts for Enhanced Epinephrine Sensing and the Oxygen Evolution Reaction. ChemElectroChem 2022. [DOI: 10.1002/celc.202200400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Andrew Selkirk
- University of Dublin Trinity College 1 College GreenDublin 2 Dublin IRELAND
| | - Salih Zeki Bas
- Selçuk Üniversitesi: Selcuk Universitesi Chemistry TURKEY
| | - Cian Cummins
- Trinity College: The University of Dublin Trinity College Chemistry IRELAND
| | - Emre Aslan
- Selçuk Üniversitesi: Selcuk Universitesi Biochemistry TURKEY
| | | | | | - Nadezda Prochukhan
- Trinity College: The University of Dublin Trinity College Chemistry IRELAND
| | - Dipu Borah
- Trinity College: The University of Dublin Trinity College Chemistry IRELAND
| | - Aislan Paiva
- Trinity College: The University of Dublin Trinity College Chemistry IRELAND
| | - Mustafa Ozmen
- Selçuk Üniversitesi: Selcuk Universitesi Chemistry TURKEY
| | - Michael A. Morris
- Trinity College: The University of Dublin Trinity College Chemistry IRELAND
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6
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Zhao Q, Hao Z, Meng Y, Liu Z. The synergistic effect of surface and bulk O vacancies in a WO 3 photoanode to advance carrier separation and light harvesting for photoelectrochemical water splitting. Dalton Trans 2022; 51:6454-6463. [PMID: 35389417 DOI: 10.1039/d2dt00383j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
It is critical to fabricate a photoanode with the virtues of high carrier separation efficiency and light harvesting to reduce the recombination of carriers and enhance the utilization of solar energy in photoelectrochemical (PEC) water splitting. In this work, WO3 nanoflake photoanodes with surface and bulk O vacancies (D-WO3-x) were fabricated via a hydrothermal method and H2WO4 etching to reveal the respective roles and collaborative effect of O vacancies in the surface and bulk. The surface O vacancies leave abundant active sites to reduce the redox barrier. Furthermore, the bulk O vacancies act as electron trap centers for heightening carrier separation efficiency. More importantly, the surface and bulk O vacancies in D-WO3-x reduce the band gap so that the resistance to electron jumping is reduced and light harvesting is increased. As expected, the photocurrent density of D-WO3-x is 0.98 mA cm-2 at 1.23 V vs. RHE, which is 5 times that of pristine WO3. Moreover, the carrier separation efficiencies in the surface and bulk are 2.38 and 2.26 times that of WO3. This work provides a promising method for the development of high-performance photoanodes via introducing surface and bulk O vacancies in semiconductors.
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Affiliation(s)
- Quanyou Zhao
- School of Materials Science and Engineering, Tianjin Chengjian University, 300384, Tianjin, China. .,Tianjin Key Laboratory of Building Green Functional Materials, 300384, Tianjin, China
| | - Zhichao Hao
- School of Materials Science and Engineering, Tianjin Chengjian University, 300384, Tianjin, China. .,Tianjin Key Laboratory of Building Green Functional Materials, 300384, Tianjin, China
| | - Yue Meng
- Department of Life Science and Health, School of Science and Engineering, Huzhou College, 313000, Huzhou, China.
| | - Zhifeng Liu
- School of Materials Science and Engineering, Tianjin Chengjian University, 300384, Tianjin, China. .,Tianjin Key Laboratory of Building Green Functional Materials, 300384, Tianjin, China
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7
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Enhanced Photoelectrochemical Water Oxidation with Ferrihydrite Decorated WO3. Catal Letters 2021. [DOI: 10.1007/s10562-021-03856-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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8
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Li X, Dong Y, Hu G, Ma K, Chen M, Ding Y. Morphology Engineering of BiVO 4 with CoO x Derived from Cobalt-containing Polyoxometalate as Co-catalyst for Oxygen Evolution. Chem Asian J 2021; 16:2967-2972. [PMID: 34352152 DOI: 10.1002/asia.202100805] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/04/2021] [Indexed: 11/10/2022]
Abstract
Bismuth vanadate (BiVO4 ) as a metal oxidation semiconductor has stimulated extensive attention in the photocatalytic water splitting field. However, the poor transport ability and easy recombination of charge carriers limit photocatalytic water oxidation activity of pure BiVO4 . Herein, the photocatalytic activity of BiVO4 is enhanced via adjusting its morphology and combination co-catalyst. First, the Cu-BiVO4 was synthesized by copper doping to control the growth of {110} facet of BiVO4 , which is regarded for the separation of photo-generated charge carriers. Then the CoOx in-situ generated from K6 [SiCoII (H2 O)W11 O39 ] ⋅ 16H2 O was photo-deposited on Cu-BiVO4 surface as co-catalyst to speed up reaction kinetics. Cu-BiVO4 @CoOx hybrid catalyst shows highest photocatalytic activity and best stability among all the prepared catalysts. Oxygen evolution is about 34.6 μmol in pH 4 acetic acid buffer under 420 nm LED irradiation, which is nearly 20 times higher than that of pure BiVO4 . Apparent quantum efficiency (AQE) in 1 h and O2 yield are 1.83% and 23.1%, respectively. O2 evolution amount nearly maintains the original value even after 5 cycles.
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Affiliation(s)
- Xiaohu Li
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Advanced Catalysis of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, P. R. China
| | - Yinjuan Dong
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Advanced Catalysis of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, P. R. China
| | - Gaoyang Hu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Advanced Catalysis of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, P. R. China
| | - Kangwei Ma
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Advanced Catalysis of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, P. R. China
| | - Mengxue Chen
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Advanced Catalysis of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, P. R. China
| | - Yong Ding
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Advanced Catalysis of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, P. R. China.,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu, 730000, P. R. China
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9
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Tan R, Hwang SW, Sivanantham A, Cho IS. Solution synthesis and activation of spinel CuAl2O4 film for solar water-splitting. J Catal 2021. [DOI: 10.1016/j.jcat.2021.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Sun M, Gao RT, He J, Liu X, Nakajima T, Zhang X, Wang L. Photo-driven Oxygen Vacancies Extends Charge Carrier Lifetime for Efficient Solar Water Splitting. Angew Chem Int Ed Engl 2021; 60:17601-17607. [PMID: 34018300 DOI: 10.1002/anie.202104754] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/07/2021] [Indexed: 11/06/2022]
Abstract
A photocharge/discharge strategy is proposed to initiate the WO3 photoelectrode and suppress the main charge recombination, which remarkably improves the photoelectrochemical (PEC) performance. The photocharged WO3 surrounded by a 8-10 nm overlayer and oxygen vacancies could be operated more than 25 cycles with 50 h durability without significant decay on PEC activity. A photocharged WO3 /CuO photoanode exhibits an outstanding photocurrent of 3.2 mA cm-2 at 1.23 VRHE with a low onset potential of 0.6 VRHE , which is one of the best performances of p-n heterojunction structure. Using nonadiabatic molecular dynamics combined with time-domain DFT, we clarify the prolonged charge carrier lifetime of photocharged WO3 , as well as how electronic systems of photocharged WO3 /CuO semiconductors enable the effective photoinduced electrons transfer from WO3 into CuO. This work provides a feasible route to address excessive defects existed in photoelectrodes without causing extra recombination.
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Affiliation(s)
- Mao Sun
- School of Chemistry and Chemical Engineering & Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource, Molecules, Inner Mongolia University, 235 West University Street, Hohhot, 010021, China
| | - Rui-Ting Gao
- School of Chemistry and Chemical Engineering & Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource, Molecules, Inner Mongolia University, 235 West University Street, Hohhot, 010021, China
| | - Jinlu He
- School of Chemistry and Chemical Engineering & Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource, Molecules, Inner Mongolia University, 235 West University Street, Hohhot, 010021, China
| | - Xianhu Liu
- Key Laboratory of Materials Processing and Mold, Ministry of Education, Zhengzhou University, Zhengzhou, 450002, China
| | - Tomohiko Nakajima
- Advanced Coating Technology Research Center, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan
| | - Xueyuan Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Lei Wang
- School of Chemistry and Chemical Engineering & Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource, Molecules, Inner Mongolia University, 235 West University Street, Hohhot, 010021, China.,Key Laboratory of Materials Processing and Mold, Ministry of Education, Zhengzhou University, Zhengzhou, 450002, China
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11
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Sun M, Gao R, He J, Liu X, Nakajima T, Zhang X, Wang L. Photo‐driven Oxygen Vacancies Extends Charge Carrier Lifetime for Efficient Solar Water Splitting. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104754] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mao Sun
- School of Chemistry and Chemical Engineering & Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource, Molecules Inner Mongolia University 235 West University Street Hohhot 010021 China
| | - Rui‐Ting Gao
- School of Chemistry and Chemical Engineering & Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource, Molecules Inner Mongolia University 235 West University Street Hohhot 010021 China
| | - Jinlu He
- School of Chemistry and Chemical Engineering & Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource, Molecules Inner Mongolia University 235 West University Street Hohhot 010021 China
| | - Xianhu Liu
- Key Laboratory of Materials Processing and Mold Ministry of Education Zhengzhou University Zhengzhou 450002 China
| | - Tomohiko Nakajima
- Advanced Coating Technology Research Center National Institute of Advanced Industrial Science and Technology Tsukuba Central 5, 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan
| | - Xueyuan Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
| | - Lei Wang
- School of Chemistry and Chemical Engineering & Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource, Molecules Inner Mongolia University 235 West University Street Hohhot 010021 China
- Key Laboratory of Materials Processing and Mold Ministry of Education Zhengzhou University Zhengzhou 450002 China
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12
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Lin W, Yu Y, Fang Y, Liu J, Li X, Wang J, Zhang Y, Wang C, Wang L, Yu X. Oxygen Vacancy-Enhanced Photoelectrochemical Water Splitting of WO 3/NiFe-Layered Double Hydroxide Photoanodes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:6490-6497. [PMID: 34009993 DOI: 10.1021/acs.langmuir.1c00638] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Photoelectrochemical (PEC) water splitting serves as one of the promising approaches for producing clean and renewable energy, and their solar-hydrogen energy conversion efficiency depends on the interfacial charge separation and carrier mobility. Herein, we report an effective strategy to promote the PEC performance by fabricating a WO3 photoanode rich in oxygen vacancies (Ov) modified by NiFe-based layered double hydroxide (LDH). When WO3-Ov/NiFe-LDH is used as a photoanode, the maximum photocurrent density at 1.8 V versus RHE has been significantly enhanced to 2.58 mA·cm-2, which is 4.3 times higher than that of WO3. In addition, analogues were studied in controlled experiments without Ov, which further demonstrated that the synergistic effect of NiFe-LDH and Ov resulted in increased carrier concentration and driving force. According to electrical impedance spectroscopy, X-ray photoelectron spectroscopy, and Mott-Schottky analysis, the built-in electronic field in WO3 homojunction, along with the accelerated hole capture by the NiFe-LDH cocatalyst contributes to the improved charge separation and transport in the WO3-Ov/NiFe-LDH electrode. This work proposes an efficient and valuable strategy for designing the structure of WO3-based photoelectrodes.
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Affiliation(s)
- Wei Lin
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, 100083 Beijing, China
| | - Yue Yu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, 100083 Beijing, China
| | - Yaoxun Fang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, 100083 Beijing, China
| | - Jianqiao Liu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, 100083 Beijing, China
| | - Xinran Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, 100083 Beijing, China
| | - Jiangpeng Wang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, 100083 Beijing, China
| | - Yilin Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, 100083 Beijing, China
| | - Chao Wang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, 100083 Beijing, China
| | - Lin Wang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, 100083 Beijing, China
| | - Xuelian Yu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, 100083 Beijing, China
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13
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Ma J, Mao K, Low J, Wang Z, Xi D, Zhang W, Ju H, Qi Z, Long R, Wu X, Song L, Xiong Y. Efficient Photoelectrochemical Conversion of Methane into Ethylene Glycol by WO
3
Nanobar Arrays. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101701] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Jun Ma
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
- Institute of Energy Hefei Comprehensive National Science Center 350 Shushanhu Rd. Hefei Anhui 230031 China
| | - Keke Mao
- School of Energy and Environment Science Anhui University of Technology Maanshan Anhui 243032 China
| | - Jingxiang Low
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
| | - Zihao Wang
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
| | - Dawei Xi
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
| | - Wenqing Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
| | - Huanxin Ju
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
| | - Zeming Qi
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
| | - Ran Long
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
| | - Xiaojun Wu
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
| | - Li Song
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
| | - Yujie Xiong
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
- Institute of Energy Hefei Comprehensive National Science Center 350 Shushanhu Rd. Hefei Anhui 230031 China
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14
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Ma J, Mao K, Low J, Wang Z, Xi D, Zhang W, Ju H, Qi Z, Long R, Wu X, Song L, Xiong Y. Efficient Photoelectrochemical Conversion of Methane into Ethylene Glycol by WO
3
Nanobar Arrays. Angew Chem Int Ed Engl 2021; 60:9357-9361. [DOI: 10.1002/anie.202101701] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Indexed: 11/12/2022]
Affiliation(s)
- Jun Ma
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
- Institute of Energy Hefei Comprehensive National Science Center 350 Shushanhu Rd. Hefei Anhui 230031 China
| | - Keke Mao
- School of Energy and Environment Science Anhui University of Technology Maanshan Anhui 243032 China
| | - Jingxiang Low
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
| | - Zihao Wang
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
| | - Dawei Xi
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
| | - Wenqing Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
| | - Huanxin Ju
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
| | - Zeming Qi
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
| | - Ran Long
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
| | - Xiaojun Wu
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
| | - Li Song
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
| | - Yujie Xiong
- Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) School of Chemistry and Materials Science National Synchrotron Radiation Laboratory, and CAS Center for Excellence in Nanoscience University of Science and Technology of China Hefei Anhui 230026 China
- Institute of Energy Hefei Comprehensive National Science Center 350 Shushanhu Rd. Hefei Anhui 230031 China
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15
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Wei Z, Wang W, Li W, Bai X, Zhao J, Tse ECM, Phillips DL, Zhu Y. Steering Electron–Hole Migration Pathways Using Oxygen Vacancies in Tungsten Oxides to Enhance Their Photocatalytic Oxygen Evolution Performance. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016170] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhen Wei
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| | - Wenchao Wang
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| | - Wenlu Li
- Department of Chemistry Tsinghua University Beijing 100084 P. R. China
| | - Xueqin Bai
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| | - Jianfeng Zhao
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| | - Edmund C. M. Tse
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
- HKU-CAS Joint Laboratory on New Materials University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
- HKU Zhejiang Institute of Research and Innovation Zhejiang 311305 P. R. China
| | - David Lee Phillips
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
- Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials P. R. China
| | - Yongfa Zhu
- Department of Chemistry Tsinghua University Beijing 100084 P. R. China
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16
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Wei Z, Wang W, Li W, Bai X, Zhao J, Tse ECM, Phillips DL, Zhu Y. Steering Electron–Hole Migration Pathways Using Oxygen Vacancies in Tungsten Oxides to Enhance Their Photocatalytic Oxygen Evolution Performance. Angew Chem Int Ed Engl 2021; 60:8236-8242. [DOI: 10.1002/anie.202016170] [Citation(s) in RCA: 95] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/04/2021] [Indexed: 01/08/2023]
Affiliation(s)
- Zhen Wei
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| | - Wenchao Wang
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| | - Wenlu Li
- Department of Chemistry Tsinghua University Beijing 100084 P. R. China
| | - Xueqin Bai
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| | - Jianfeng Zhao
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| | - Edmund C. M. Tse
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
- HKU-CAS Joint Laboratory on New Materials University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
- HKU Zhejiang Institute of Research and Innovation Zhejiang 311305 P. R. China
| | - David Lee Phillips
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
- Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials P. R. China
| | - Yongfa Zhu
- Department of Chemistry Tsinghua University Beijing 100084 P. R. China
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17
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Wu Y, Liu X, Zhang H, Li J, Zhou M, Li L, Wang Y. Atomic Sandwiched p‐n Homojunctions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012734] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yu Wu
- The School of Chemistry and Chemical Engineering State Key Laboratory of Power Transmission Equipment &, System Security and New Technology Chongqing University 174 Shazheng Street, Shapingba District Chongqing City 400044 P. R. China
| | - XiaoQing Liu
- The School of Optoelectronic Engineering Key Laboratory of Optoelectronic Technology and System of Ministry of Education Chongqing University Chongqing 400044 P. R. China
| | - Huijuan Zhang
- The School of Chemistry and Chemical Engineering State Key Laboratory of Power Transmission Equipment &, System Security and New Technology Chongqing University 174 Shazheng Street, Shapingba District Chongqing City 400044 P. R. China
| | - Jian Li
- The School of Electrical Engineering Chongqing University 174 Shazheng Street, Shapingba District Chongqing City 400044 P. R. China
| | - Miao Zhou
- The School of Optoelectronic Engineering Key Laboratory of Optoelectronic Technology and System of Ministry of Education Chongqing University Chongqing 400044 P. R. China
| | - Liang Li
- The School of Physical Science and Technology Center for Energy Conversion Materials & Physics Jiangsu Key Laboratory of Thin Films Soochow University Suzhou 215006 P. R. China
| | - Yu Wang
- The School of Chemistry and Chemical Engineering State Key Laboratory of Power Transmission Equipment &, System Security and New Technology Chongqing University 174 Shazheng Street, Shapingba District Chongqing City 400044 P. R. China
- The School of Electrical Engineering Chongqing University 174 Shazheng Street, Shapingba District Chongqing City 400044 P. R. China
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18
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Wu Y, Liu X, Zhang H, Li J, Zhou M, Li L, Wang Y. Atomic Sandwiched p-n Homojunctions. Angew Chem Int Ed Engl 2021; 60:3487-3492. [PMID: 33128336 DOI: 10.1002/anie.202012734] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 10/20/2020] [Indexed: 12/28/2022]
Abstract
Semiconductor p-n junctions have been explored and applied in photoelectrochemical (PEC) water splitting, but serious carrier recombination and sluggish oxygen evolution reaction (OER) dynamics have demanded further progress in p-n junction photoelectrode design. Here, via a controllable NH3 treatment, we construct sandwiched p-n homojunctions in three-unit-cells n-type SnS2 (n-SnS2 ) nanosheet arrays using nitrogen (N) as acceptor dopants. The optimal N-doped n-SnS2 (pnp-SnS2 ) with such unique structure achieves a record photocurrent density of 3.28 mA cm-2 , which is 21 times as high as that of n-SnS2 and the highest value among all the SnS2 photoanodes reported so far. Moreover, the stoichiometric O2 and H2 evolution from water was achieved with Faradaic efficiencies close to 100 %. The superior performance could be attributed to the facilitated electron-hole separation/transfer, accelerated surface OER kinetics, prolonged carrier lifetime, and improved structural stability.
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Affiliation(s)
- Yu Wu
- The School of Chemistry and Chemical Engineering, State Key Laboratory of Power Transmission Equipment &, System Security and New Technology, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing City, 400044, P. R. China
| | - XiaoQing Liu
- The School of Optoelectronic Engineering, Key Laboratory of Optoelectronic Technology and System of Ministry of Education, Chongqing University, Chongqing, 400044, P. R. China
| | - Huijuan Zhang
- The School of Chemistry and Chemical Engineering, State Key Laboratory of Power Transmission Equipment &, System Security and New Technology, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing City, 400044, P. R. China
| | - Jian Li
- The School of Electrical Engineering, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing City, 400044, P. R. China
| | - Miao Zhou
- The School of Optoelectronic Engineering, Key Laboratory of Optoelectronic Technology and System of Ministry of Education, Chongqing University, Chongqing, 400044, P. R. China
| | - Liang Li
- The School of Physical Science and Technology, Center for Energy Conversion Materials & Physics, Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215006, P. R. China
| | - Yu Wang
- The School of Chemistry and Chemical Engineering, State Key Laboratory of Power Transmission Equipment &, System Security and New Technology, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing City, 400044, P. R. China.,The School of Electrical Engineering, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing City, 400044, P. R. China
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19
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Pei L, Cai H, Jin H, Li T, Zhu H, Yuan Y, Zhong J, Yan S, Zou Z. A Novel Visible‐Light‐Responsive Semiconductor ScTaO
4−x
N
x
for Photocatalytic Oxygen and Hydrogen Evolution Reactions. ChemCatChem 2020. [DOI: 10.1002/cctc.202001341] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Lang Pei
- College of Materials and Environmental Engineering Hangzhou Dianzi University Hangzhou 310018 P. R. China
| | - Hong Cai
- College of Materials and Environmental Engineering Hangzhou Dianzi University Hangzhou 310018 P. R. China
| | - Hao Jin
- College of Materials and Environmental Engineering Hangzhou Dianzi University Hangzhou 310018 P. R. China
| | - Taozhu Li
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures Institution College of Engineering and Applied Sciences Nanjing University Nanjing 210093 P. R. China
| | - Heng Zhu
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures Institution College of Engineering and Applied Sciences Nanjing University Nanjing 210093 P. R. China
| | - Yongjun Yuan
- College of Materials and Environmental Engineering Hangzhou Dianzi University Hangzhou 310018 P. R. China
| | - Jiasong Zhong
- College of Materials and Environmental Engineering Hangzhou Dianzi University Hangzhou 310018 P. R. China
| | - Shicheng Yan
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures Institution College of Engineering and Applied Sciences Nanjing University Nanjing 210093 P. R. China
| | - Zhigang Zou
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures Institution College of Engineering and Applied Sciences Nanjing University Nanjing 210093 P. R. China
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20
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Chen Z, Corkett AJ, de Bruin-Dickason C, Chen J, Rokicińska A, Kuśtrowski P, Dronskowski R, Slabon A. Tailoring the Surface Properties of Bi 2O 2NCN by in Situ Activation for Augmented Photoelectrochemical Water Oxidation on WO 3 and CuWO 4 Heterojunction Photoanodes. Inorg Chem 2020; 59:13589-13597. [PMID: 32886498 PMCID: PMC7509841 DOI: 10.1021/acs.inorgchem.0c01947] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Bismuth(III) oxide-carbodiimide
(Bi2O2NCN)
has been recently discovered as a novel mixed-anion semiconductor,
which is structurally related to bismuth oxides and oxysulfides. Given
the structural versatility of these layered structures, we investigated
the unexplored photochemical properties of the target compound for
photoelectrochemical (PEC) water oxidation. Although Bi2O2NCN does not generate a noticeable photocurrent as a
single photoabsorber, the fabrication of heterojunctions with the
WO3 thin film electrode shows an upsurge of current density
from 0.9 to 1.1 mA cm–2 at 1.23 V vs reversible
hydrogen electrode (RHE) under 1 sun (AM 1.5G) illumination in phosphate
electrolyte (pH 7.0). Mechanistic analysis and structural analysis
using powder X-ray diffraction (XRD), scanning electron microscopy
(SEM), X-ray photoelectron spectroscopy (XPS), and scanning transmission
electron microscopy energy-dispersive X-ray spectroscopy (STEM EDX)
indicate that Bi2O2NCN transforms during operating
conditions in situ to a core–shell structure
Bi2O2NCN/BiPO4. When compared to
WO3/BiPO4, the in situ electrolyte-activated
WO3/Bi2O2NCN photoanode shows a higher
photocurrent density due to superior charge separation across the
oxide/oxide-carbodiimide interface layer. Changing the electrolyte
from phosphate to sulfate results in a lower photocurrent and shows
that the electrolyte determines the surface chemistry and mediates
the PEC activity of the metal oxide-carbodiimide. A similar trend
could be observed for CuWO4 thin film photoanodes. These
results show the potential of metal oxide-carbodiimides as relatively
novel representatives of mixed-anion compounds and shed light on the
importance of the control over the surface chemistry to enable the in situ activation. Phosphate electrolyte
activates the metal oxide−Bi2O2NCN heterojunction.
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Affiliation(s)
- Zheng Chen
- Solid-State and Quantum Chemistry, Institute of Inorganic Chemistry, RWTH Aachen University, 52056 Aachen, Germany
| | - Alex J Corkett
- Solid-State and Quantum Chemistry, Institute of Inorganic Chemistry, RWTH Aachen University, 52056 Aachen, Germany
| | - Caspar de Bruin-Dickason
- Department of Materials and Environmental Chemistry, Stockholm University, 10691 Stockholm, Sweden
| | - Jianhong Chen
- Department of Materials and Environmental Chemistry, Stockholm University, 10691 Stockholm, Sweden
| | - Anna Rokicińska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Piotr Kuśtrowski
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Richard Dronskowski
- Solid-State and Quantum Chemistry, Institute of Inorganic Chemistry, RWTH Aachen University, 52056 Aachen, Germany.,Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Liuxian Boulevard 7098, Shenzhen 518055, China
| | - Adam Slabon
- Department of Materials and Environmental Chemistry, Stockholm University, 10691 Stockholm, Sweden
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21
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Teusch T, Klüner T. Photodesorption mechanism of water on WO 3(001) - a combined embedded cluster, computational intelligence and wave packet approach. Phys Chem Chem Phys 2020; 22:19267-19274. [PMID: 32815960 DOI: 10.1039/d0cp02809f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work we investigate the mechanism of photodesorption of water from a WO3(001) surface by theoretical calculations, applying an embedded cluster model. Using the CASSCF method, we have calculated both the ground state as well as the energetically preferred charge-transfer state in three degrees of freedom of the water molecule on the surface. The calculated potential energy surfaces were afterwards fitted with a neural network optimized by a genetic algorithm. A final quantum dynamic wave packet study provided insight into the photodesorption mechanism.
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Affiliation(s)
- Thomas Teusch
- Department of Chemistry, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany.
| | - Thorsten Klüner
- Department of Chemistry, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany.
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22
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Xiao C, Zhou Z, Li L, Wu S, Li X. Tin and Oxygen-Vacancy Co-doping into Hematite Photoanode for Improved Photoelectrochemical Performances. NANOSCALE RESEARCH LETTERS 2020; 15:54. [PMID: 32130553 PMCID: PMC7056762 DOI: 10.1186/s11671-020-3287-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 02/21/2020] [Indexed: 05/17/2023]
Abstract
Hematite (α-Fe2O3) material is regarded as a promising candidate for solar-driven water splitting because of the low cost, chemical stability, and appropriate bandgap; however, the corresponding system performances are limited by the poor electrical conductivity, short diffusion length of minority carrier, and sluggish oxygen evolution reaction. Here, we introduce the in situ Sn doping into the nanoworm-like α-Fe2O3 film with ultrasonic spray pyrolysis method. We show that the current density at 1.23 V vs. RHE (Jph@1.23V) under one-sun illumination can be improved from 10 to 130 μA/cm2 after optimizing the Sn dopant density. Moreover, Jph@1.23V can be further enhanced 25-folds compared to the untreated counterpart via the post-rapid thermal process (RTP), which is used to introduce the defect doping of oxygen vacancy. Photoelectrochemical impedance spectrum and Mott-Schottky analysis indicate that the performance improvement can be ascribed to the increased carrier density and the decreased resistances for the charge trapping on the surface states and the surface charge transferring into the electrolyte. X-ray photoelectron spectrum and X-ray diffraction confirm the existence of Sn and oxygen vacancy, and the potential influences of varying levels of Sn doping and oxygen vacancy are discussed. Our work points out one universal approach to efficiently improve the photoelectrochemical performances of the metal oxide semiconductors.
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Affiliation(s)
- Chenhong Xiao
- School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215006, Jiangsu, China
- Key Laboratory of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Laboratory of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou, 215006, Jiangsu, China
| | - Zhongyuan Zhou
- School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215006, Jiangsu, China
- Key Laboratory of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Laboratory of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou, 215006, Jiangsu, China
| | - Liujing Li
- School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215006, Jiangsu, China
- Key Laboratory of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Laboratory of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou, 215006, Jiangsu, China
| | - Shaolong Wu
- School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215006, Jiangsu, China.
- Key Laboratory of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Laboratory of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou, 215006, Jiangsu, China.
| | - Xiaofeng Li
- School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215006, Jiangsu, China.
- Key Laboratory of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Laboratory of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou, 215006, Jiangsu, China.
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23
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Huang J, Yue P, Wang L, She H, Wang Q. A review on tungsten-trioxide-based photoanodes for water oxidation. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(19)63399-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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24
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Sheldon RA, Brady D. Broadening the Scope of Biocatalysis in Sustainable Organic Synthesis. CHEMSUSCHEM 2019; 12:2859-2881. [PMID: 30938093 DOI: 10.1002/cssc.201900351] [Citation(s) in RCA: 155] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 02/05/2019] [Accepted: 03/04/2019] [Indexed: 05/21/2023]
Abstract
This Review is aimed at synthetic organic chemists who may be familiar with organometallic catalysis but have no experience with biocatalysis, and seeks to provide an answer to the perennial question: if it is so attractive, why wasn't it extensively used in the past? The development of biocatalysis in industrial organic synthesis is traced from the middle of the last century. Advances in molecular biology in the last two decades, in particular genome sequencing, gene synthesis and directed evolution of proteins, have enabled remarkable improvements in scope and substantially reduced biocatalyst development times and cost contributions. Additionally, improvements in biocatalyst recovery and reuse have been facilitated by developments in enzyme immobilization technologies. Biocatalysis has become eminently competitive with chemocatalysis and the biocatalytic production of important pharmaceutical intermediates, such as enantiopure alcohols and amines, has become mainstream organic synthesis. The synthetic space of biocatalysis has significantly expanded and is currently being extended even further to include new-to-nature biocatalytic reactions.
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Affiliation(s)
- Roger A Sheldon
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg, 2050, South Africa
- Department of Biotechnology, Delft University of Technology, Section BOC, van der Maasweg 9, 2629 HZ, Delft, The Netherlands
| | - Dean Brady
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg, 2050, South Africa
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25
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Zhang Y, Afzal N, Pan L, Zhang X, Zou J. Structure-Activity Relationship of Defective Metal-Based Photocatalysts for Water Splitting: Experimental and Theoretical Perspectives. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900053. [PMID: 31131201 PMCID: PMC6524102 DOI: 10.1002/advs.201900053] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 02/26/2019] [Indexed: 05/05/2023]
Abstract
Photocatalytic water splitting is promising for hydrogen energy production using solar energy and developing highly efficient photocatalysts is challenging. Defect engineering is proved to be a very useful strategy to promote the photocatalytic performance of metal-based photocatalysts, however, the vital role of defects is still ambiguous. This work comprehensively reviews point defective metal-based photocatalysts for water splitting, focusing on understanding the defects' disorder effect on optical adsorption, charge separation and migration, and surface reaction. The controllable synthesis and tuning strategies of defective structure to improve the photocatalytic performance are summarized, then the characterization techniques and density functional theory calculations are discussed to unveil the defect structure, and analyze the defects induced electronic structure change of catalysts and its ultimate effect on the photocatalytic activity at the molecular level. Finally, the challenge in developing more efficient defective metal-based photocatalysts is outlined. This work may help further the understanding of the fundamental role of defect structure in the photocatalytic reaction process and guide the rational design and fabrication of highly efficient and low-cost photocatalysts.
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Affiliation(s)
- Yong‐Chao Zhang
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)Tianjin300072China
| | - Nisha Afzal
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)Tianjin300072China
| | - Lun Pan
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)Tianjin300072China
| | - Xiangwen Zhang
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)Tianjin300072China
| | - Ji‐Jun Zou
- Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)Tianjin300072China
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Chen S, Guo L, Ji M, Chen J, Liu P, Ding H, Qi D, Xie Z, Gu Z. Photonic crystal enhanced laser desorption and ionization substrate for detection of stress biomarkers under atmospheric pressure. J Mater Chem B 2019; 7:908-914. [PMID: 32255096 DOI: 10.1039/c8tb02855a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enhanced efficiency for generating molecular ions is essential for high-throughput and sensitive detection using mass spectrometry in clinical diagnostics and biomarker discovery. In this study, we developed a novel strategy to promote laser desorption and ionization by using photonic crystals as substrates. The WO3-TiO2 inverse opal photonic crystal, with a coupling stop band and laser wavelength, significantly enhanced the efficiency of laser desorption and ionization owing to the slow light effect and the porous structure of the inverse opal, which increased the interaction between the laser and WO3-TiO2. Furthermore, stress biomarkers were conveniently measured under atmospheric pressure by using WO3-TiO2 inverse opal as an enhanced substrate to evaluate the impact of chronic unpredictable mild stress. The universal and highly sensitive substrate has promised for application in the highly sensitive detection and quantification of biomarkers.
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Affiliation(s)
- Shan Chen
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China.
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Zhang X, Wang X, Wang D, Ye J. Conformal BiVO 4-Layer/WO 3-Nanoplate-Array Heterojunction Photoanode Modified with Cobalt Phosphate Cocatalyst for Significantly Enhanced Photoelectrochemical Performances. ACS APPLIED MATERIALS & INTERFACES 2019; 11:5623-5631. [PMID: 30004671 DOI: 10.1021/acsami.8b05477] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Constructing semiconductor heterojunctions via surface/interface engineering is an effective way to enhance the charge carrier separation/transport ability and thus the photoelectrochemical (PEC) properties of a photoelectrode. Herein, we report a conformal BiVO4-layer/WO3-nanoplate-array heterojunction photoanode modified with cobalt phosphate (Co-Pi) as oxygen evolution cocatalyst (OEC) for significant enhancement in PEC performances. The BiVO4/WO3 nanocomposite is fabricated by coating a thin conformal BiVO4 layer on the surface of presynthesized WO3 nanoplate arrays (NPAs) via stepwise spin-coating, and the decoration of Co-Pi OEC is realized by photoassisted electrodeposition method. The optimized Co-Pi@BiVO4/WO3 heterojunction photoanode shows a maximum photocurrent of 1.8 mA/cm2 at 1.23 V vs RHE in a phosphate buffer electrolyte under an AM1.5G solar simulator, which is 5 and 12 times higher than those of bare WO3 and BiVO4 photoanode, respectively. Measurements of UV-vis absorption spectra, electrochemical impedance spectra (EIS) and photoluminescence (PL) spectra reveal that the enhanced PEC performances can be attributed to the increased charge carrier separation/transport benefited from the type II nature of BiVO4/WO3 heterojunction and the promoted water oxidation kinetics and photostability owing to the decoration of Co-Pi cocatalyst.
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Affiliation(s)
- Xueliang Zhang
- TJU-NIMS International Collaboration laboratory, Key Lab of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin Key Lab of Composite and Functional Materials, School of Materials Science and Engineering , Tianjin University , 92 Weijin Road , Tianjin 300072 , China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , 92 Weijin Road , Tianjin 300072 , China
| | - Xin Wang
- TJU-NIMS International Collaboration laboratory, Key Lab of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin Key Lab of Composite and Functional Materials, School of Materials Science and Engineering , Tianjin University , 92 Weijin Road , Tianjin 300072 , China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , 92 Weijin Road , Tianjin 300072 , China
| | - Defa Wang
- TJU-NIMS International Collaboration laboratory, Key Lab of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin Key Lab of Composite and Functional Materials, School of Materials Science and Engineering , Tianjin University , 92 Weijin Road , Tianjin 300072 , China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , 92 Weijin Road , Tianjin 300072 , China
| | - Jinhua Ye
- TJU-NIMS International Collaboration laboratory, Key Lab of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin Key Lab of Composite and Functional Materials, School of Materials Science and Engineering , Tianjin University , 92 Weijin Road , Tianjin 300072 , China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , 92 Weijin Road , Tianjin 300072 , China
- International Center of Materials Nanoarchitectonics (WPI-MANA) , National Institute for Materials Science (NIMS) , 1-1Namiki , Tsukuba , Ibaraki 305-0044 , Japan
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Ma Z, Song K, Wang L, Gao F, Tang B, Hou H, Yang W. WO 3/BiVO 4 Type-II Heterojunction Arrays Decorated with Oxygen-Deficient ZnO Passivation Layer: A Highly Efficient and Stable Photoanode. ACS APPLIED MATERIALS & INTERFACES 2019; 11:889-897. [PMID: 30560657 DOI: 10.1021/acsami.8b18261] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In the present work, we report a ternary WO3/BiVO4/ZnO photoanode with boosted PEC efficiency and stability toward highly efficient water splitting. The type-II WO3/BiVO4 heterojunction arrays are firstly prepared by hydrothermal growth of WO3 nanoplate arrays onto the substrates of fluorine-doped tin oxide (FTO)-coated glass, followed by spin-coating of BiVO4 layers onto the WO3 nanoplate surfaces. After that, thin ZnO layers are further introduced onto the WO3/BiVO4 heterojunction arrays via atomic layer deposition (ALD), leading to the construction of ternary WO3/BiVO4/ZnO photoanodes. It is verified that the ZnO thin layer in the WO3/BiVO4/ZnO photoanode contains abundant oxygen vacancies, which could act as an effective passivation layer to enhance the charge separation and surface water oxidation kinetics of photogenerated carriers. The as-prepared WO3/BiVO4/ZnO photoanode produces a photocurrent of 2.96 mA cm-2 under simulated sunlight with an incident photon-to-current conversion efficiency (IPCE) of ∼72.8% at 380 nm at a potential of 1.23 V versus RHE without cocatalysts, both of which are comparable to the state-of-the-art WO3/BiVO4 counterparts. Moreover, the photocurrent of the WO3/BiVO4/ZnO photoanode shows only 9% decay after 6 h, suggesting its high photoelectrochemical (PEC) stability.
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Affiliation(s)
- Zizai Ma
- Research Institute of Surface Engineering , Taiyuan University of Technology , Taiyuan 030024 , P.R. China
- Institute of Materials , Ningbo University of Technology , Ningbo 315211 , P.R. China
| | - Kai Song
- Research Institute of Surface Engineering , Taiyuan University of Technology , Taiyuan 030024 , P.R. China
| | - Lin Wang
- Institute of Materials , Ningbo University of Technology , Ningbo 315211 , P.R. China
| | - Fengmei Gao
- Institute of Materials , Ningbo University of Technology , Ningbo 315211 , P.R. China
| | - Bin Tang
- Research Institute of Surface Engineering , Taiyuan University of Technology , Taiyuan 030024 , P.R. China
| | - Huilin Hou
- Institute of Materials , Ningbo University of Technology , Ningbo 315211 , P.R. China
| | - Weiyou Yang
- Institute of Materials , Ningbo University of Technology , Ningbo 315211 , P.R. China
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Meng L, Rao D, Tian W, Cao F, Yan X, Li L. Simultaneous Manipulation of O‐Doping and Metal Vacancy in Atomically Thin Zn
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Nanosheet Arrays toward Improved Photoelectrochemical Performance. Angew Chem Int Ed Engl 2018; 57:16882-16887. [DOI: 10.1002/anie.201811632] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 10/22/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Linxing Meng
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin FilmsCenter for Energy Conversion Materials & Physics (CECMP)Soochow University Suzhou 215006 P. R. China
| | - Dewei Rao
- School of Materials Science and EngineeringJiangsu University Zhenjiang 212013 P. R. China
| | - Wei Tian
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin FilmsCenter for Energy Conversion Materials & Physics (CECMP)Soochow University Suzhou 215006 P. R. China
| | - Fengren Cao
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin FilmsCenter for Energy Conversion Materials & Physics (CECMP)Soochow University Suzhou 215006 P. R. China
| | - Xiaohong Yan
- School of Materials Science and EngineeringJiangsu University Zhenjiang 212013 P. R. China
| | - Liang Li
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin FilmsCenter for Energy Conversion Materials & Physics (CECMP)Soochow University Suzhou 215006 P. R. China
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30
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Meng L, Rao D, Tian W, Cao F, Yan X, Li L. Simultaneous Manipulation of O‐Doping and Metal Vacancy in Atomically Thin Zn
10
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Nanosheet Arrays toward Improved Photoelectrochemical Performance. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811632] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Linxing Meng
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin FilmsCenter for Energy Conversion Materials & Physics (CECMP)Soochow University Suzhou 215006 P. R. China
| | - Dewei Rao
- School of Materials Science and EngineeringJiangsu University Zhenjiang 212013 P. R. China
| | - Wei Tian
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin FilmsCenter for Energy Conversion Materials & Physics (CECMP)Soochow University Suzhou 215006 P. R. China
| | - Fengren Cao
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin FilmsCenter for Energy Conversion Materials & Physics (CECMP)Soochow University Suzhou 215006 P. R. China
| | - Xiaohong Yan
- School of Materials Science and EngineeringJiangsu University Zhenjiang 212013 P. R. China
| | - Liang Li
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin FilmsCenter for Energy Conversion Materials & Physics (CECMP)Soochow University Suzhou 215006 P. R. China
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Park YB, Kim JH, Jang YJ, Lee JH, Lee MH, Lee BJ, Youn DH, Lee JS. Exfoliated NiFe Layered Double Hydroxide Cocatalyst for Enhanced Photoelectrochemical Water Oxidation with Hematite Photoanode. ChemCatChem 2018. [DOI: 10.1002/cctc.201801490] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yoon Bin Park
- Department of Chemical EngineeringPohang University of Science and Technology (POSTECH) Pohang 37673 (South Korea)
| | - Ju Hun Kim
- School of Energy and Chemical EngineeringUlsan National Institute of Science and Technology (UNIST) Ulsan 44919 South Korea
| | - Youn Jeong Jang
- School of Energy and Chemical EngineeringUlsan National Institute of Science and Technology (UNIST) Ulsan 44919 South Korea
| | - Jin Ho Lee
- School of Energy and Chemical EngineeringUlsan National Institute of Science and Technology (UNIST) Ulsan 44919 South Korea
| | - Min Hee Lee
- School of Energy and Chemical EngineeringUlsan National Institute of Science and Technology (UNIST) Ulsan 44919 South Korea
| | - Byeong Jun Lee
- School of Energy and Chemical EngineeringUlsan National Institute of Science and Technology (UNIST) Ulsan 44919 South Korea
| | - Duck Hyun Youn
- Department of Chemical EngineeringKangwon National University Chuncheon 24341 South Korea
| | - Jae Sung Lee
- School of Energy and Chemical EngineeringUlsan National Institute of Science and Technology (UNIST) Ulsan 44919 South Korea
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32
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Seo J, Nishiyama H, Yamada T, Domen K. Auf sichtbares Licht ansprechende Photoanoden für hochaktive, dauerhafte Wasseroxidation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201710873] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jeongsuk Seo
- Center for Energy and Environmental Science Shinshu University 4-17-1 Wakasato Nagano 380-8553 Japan
- Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem) 2-11-9 Iwamotocho, Chiyoda-ku Tokyo 101-0032 Japan
| | - Hiroshi Nishiyama
- Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem) 2-11-9 Iwamotocho, Chiyoda-ku Tokyo 101-0032 Japan
- Department of Chemical System Engineering School of Engineering The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
| | - Taro Yamada
- Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem) 2-11-9 Iwamotocho, Chiyoda-ku Tokyo 101-0032 Japan
- Department of Chemical System Engineering School of Engineering The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
| | - Kazunari Domen
- Center for Energy and Environmental Science Shinshu University 4-17-1 Wakasato Nagano 380-8553 Japan
- Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem) 2-11-9 Iwamotocho, Chiyoda-ku Tokyo 101-0032 Japan
- Department of Chemical System Engineering School of Engineering The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
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33
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Seo J, Nishiyama H, Yamada T, Domen K. Visible-Light-Responsive Photoanodes for Highly Active, Stable Water Oxidation. Angew Chem Int Ed Engl 2018; 57:8396-8415. [PMID: 29265720 DOI: 10.1002/anie.201710873] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Indexed: 11/08/2022]
Abstract
Solar energy is a natural and effectively permanent resource and so the conversion of solar radiation into chemical or electrical energy is an attractive, although challenging, prospect. Photo-electrochemical (PEC) water splitting is a key aspect of producing hydrogen from solar power. However, practical water oxidation over photoanodes (in combination with water reduction at a photocathode) in PEC cells is currently difficult to achieve because of the large overpotentials in the reaction kinetics and the inefficient photoactivity of the semiconductors. The development of semiconductors that allow high solar-to-hydrogen conversion efficiencies and the utilization of these materials in photoanodes will be a necessary aspect of achieving efficient, stable water oxidation. This Review discusses advances in water oxidation activity over photoanodes of n-type visible-light-responsive (oxy)nitrides and oxides.
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Affiliation(s)
- Jeongsuk Seo
- Center for Energy and Environmental Science, Shinshu University, 4-17-1 Wakasato, Nagano, 380-8553, Japan.,Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem), 2-11-9 Iwamotocho, Chiyoda-ku, Tokyo, 101-0032, Japan
| | - Hiroshi Nishiyama
- Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem), 2-11-9 Iwamotocho, Chiyoda-ku, Tokyo, 101-0032, Japan.,Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Taro Yamada
- Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem), 2-11-9 Iwamotocho, Chiyoda-ku, Tokyo, 101-0032, Japan.,Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Kazunari Domen
- Center for Energy and Environmental Science, Shinshu University, 4-17-1 Wakasato, Nagano, 380-8553, Japan.,Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem), 2-11-9 Iwamotocho, Chiyoda-ku, Tokyo, 101-0032, Japan.,Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
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Liu Y, Yang Y, Liu Q, Li Y, Lin J, Li W, Li J. The role of water in reducing WO3 film by hydrogen: Controlling the concentration of oxygen vacancies and improving the photoelectrochemical performance. J Colloid Interface Sci 2018; 512:86-95. [DOI: 10.1016/j.jcis.2017.10.039] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 10/09/2017] [Accepted: 10/11/2017] [Indexed: 11/24/2022]
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Zheng T, Sang W, He Z, Wei Q, Chen B, Li H, Cao C, Huang R, Yan X, Pan B, Zhou S, Zeng J. Conductive Tungsten Oxide Nanosheets for Highly Efficient Hydrogen Evolution. NANO LETTERS 2017; 17:7968-7973. [PMID: 29178807 DOI: 10.1021/acs.nanolett.7b04430] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Exploring efficient and economical electrocatalysts for hydrogen evolution reaction is of great significance for water splitting on an industrial scale. Tungsten oxide, WO3, has been long expected to be a promising non-precious-metal electrocatalyst for hydrogen production. However, the poor intrinsic activity of this material hampers its development. Herein, we design a highly efficient hydrogen evolution electrocatalyst via introducing oxygen vacancies into WO3 nanosheets. Our first-principles calculations demonstrate that the gap states introduced by O vacancies make WO3 act as a degenerate semiconductor with high conductivity and desirable hydrogen adsorption free energy. Experimentally, we prepared WO3 nanosheets rich in oxygen vacancies via a liquid exfoliation, which indeed exhibits the typical character of a degenerate semiconductor. When evaluated by hydrogen evolution, the nanosheets display superior performance with a small overpotential of 38 mV at 10 mA cm-2 and a low Tafel slope of 38 mV dec-1. This work opens an effective route to develop conductive tungsten oxide as a potential alternative to the state-of-the-art platinum for hydrogen evolution.
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Affiliation(s)
- Tingting Zheng
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Department of Chemical Physics, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Wei Sang
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Department of Chemical Physics, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Zhihai He
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Department of Chemical Physics, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Qiushi Wei
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Department of Chemical Physics, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Bowen Chen
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Department of Chemical Physics, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Hongliang Li
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Department of Chemical Physics, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Cong Cao
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Department of Chemical Physics, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Ruijie Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Department of Chemical Physics, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Xupeng Yan
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Department of Chemical Physics, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Bicai Pan
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Department of Chemical Physics, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Shiming Zhou
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Department of Chemical Physics, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Jie Zeng
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Department of Chemical Physics, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
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Wang Y, Tian W, Chen L, Cao F, Guo J, Li L. Three-Dimensional WO 3 Nanoplate/Bi 2S 3 Nanorod Heterojunction as a Highly Efficient Photoanode for Improved Photoelectrochemical Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2017; 9:40235-40243. [PMID: 29067799 DOI: 10.1021/acsami.7b11510] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The rational design of semiconductor photoanodes with sufficient light absorption, efficient photogenerated carrier separation, and fast charge transport is crucial for photoelectrochemical (PEC) water splitting. Incorporating a small-band-gap semiconductor to a large-band-gap material with matched energy band position is a promising route to improve the light harvesting and charge transport. Herein, we report the fabrication of a three-dimensional heterojunction with uniform Bi2S3 nanorods on WO3 nanoplates by hydrothermal process and chemical bath deposition. The seed layer strategy was used to assist the growth of Bi2S3 nanorods for perfect interface contact between WO3 and Bi2S3. The as-prepared WO3/Bi2S3 composite exhibited a much enhanced photocurrent (5.95 mA/cm2 at 0.9 V vs reversible hydrogen electrode), which is 35 and 1.4 times higher than those of pristine WO3 and WO3/Bi2S3 composite without a seed layer, respectively. In addition, higher incident photon-to-current conversion efficiency (68.8%) and photoconversion efficiency (1.70%) were achieved. The enhancement mechanism was investigated in detail, and the sufficient light absorption, efficient charge transport, and high carrier density simultaneously contribute to the improved PEC activity. These findings will open up new opportunities to develop other highly efficient heterostructures as photoelectrodes for PEC applications.
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Affiliation(s)
- Yidan Wang
- College of Physics, Optoelectronics and Energy, Center for Energy Conversion Materials & Physics, Jiangsu Key Laboratory of Thin Films, and ‡Analysis and Testing Center, Soochow University , Suzhou 215006, P. R. China
| | - Wei Tian
- College of Physics, Optoelectronics and Energy, Center for Energy Conversion Materials & Physics, Jiangsu Key Laboratory of Thin Films, and ‡Analysis and Testing Center, Soochow University , Suzhou 215006, P. R. China
| | - Liang Chen
- College of Physics, Optoelectronics and Energy, Center for Energy Conversion Materials & Physics, Jiangsu Key Laboratory of Thin Films, and ‡Analysis and Testing Center, Soochow University , Suzhou 215006, P. R. China
| | - Fengren Cao
- College of Physics, Optoelectronics and Energy, Center for Energy Conversion Materials & Physics, Jiangsu Key Laboratory of Thin Films, and ‡Analysis and Testing Center, Soochow University , Suzhou 215006, P. R. China
| | - Jun Guo
- College of Physics, Optoelectronics and Energy, Center for Energy Conversion Materials & Physics, Jiangsu Key Laboratory of Thin Films, and ‡Analysis and Testing Center, Soochow University , Suzhou 215006, P. R. China
| | - Liang Li
- College of Physics, Optoelectronics and Energy, Center for Energy Conversion Materials & Physics, Jiangsu Key Laboratory of Thin Films, and ‡Analysis and Testing Center, Soochow University , Suzhou 215006, P. R. China
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Jang JS, Choi SJ, Koo WT, Kim SJ, Cheong JY, Kim ID. Elaborate Manipulation for Sub-10 nm Hollow Catalyst Sensitized Heterogeneous Oxide Nanofibers for Room Temperature Chemical Sensors. ACS APPLIED MATERIALS & INTERFACES 2017; 9:24821-24829. [PMID: 28658576 DOI: 10.1021/acsami.7b02396] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Room-temperature (RT) operation sensors are constantly in increasing demand because of their low power consumption, simple operation, and long lifetime. However, critical challenges such as low sensing performance, vulnerability under highly humid state, and poor recyclability hinder their commercialization. In this work, sub-10 nm hollow, bimetallic Pt-Ag nanoparticles (NPs) were successfully formed by galvanic replacement reaction in bioinspired hollow protein templates and sensitized on the multidimensional SnO2-WO3 heterojunction nanofibers (HNFs). Formation of hollow, bimetallic NPs resulted in the double-side catalytic effect, rendering both surface and inner side chemical reactions. Subsequently, SnO2-WO3 HNFs were synthesized by incorporating 2D WO3 nanosheets (NSs) with 0D SnO2 sphere by c-axis growth inhibition effect and fluid dynamics of liquid Sn during calcination. Hierarchically assembled HNFs effectively modulate surface depletion layer of 2D WO3 NSs by electron transfers from WO3 to SnO2 stemming from creation of heterojunction. Careful combination of bimetallic catalyst NPs with HNFs provided an extreme recyclability under exhaled breath (95 RH%) with outstanding H2S sensitivity. Such sensing platform clearly distinguished between the breath of healthy people and simulated halitosis patients.
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Affiliation(s)
- Ji-Soo Jang
- Department of Materials Science and Engineering and ‡Applied Science Research Institute, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Seon-Jin Choi
- Department of Materials Science and Engineering and ‡Applied Science Research Institute, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Won-Tae Koo
- Department of Materials Science and Engineering and ‡Applied Science Research Institute, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Sang-Joon Kim
- Department of Materials Science and Engineering and ‡Applied Science Research Institute, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Jun Young Cheong
- Department of Materials Science and Engineering and ‡Applied Science Research Institute, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Il-Doo Kim
- Department of Materials Science and Engineering and ‡Applied Science Research Institute, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
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Cai M, Fan P, Long J, Han J, Lin Y, Zhang H, Zhong M. Large-Scale Tunable 3D Self-Supporting WO 3 Micro-Nano Architectures as Direct Photoanodes for Efficient Photoelectrochemical Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2017; 9:17856-17864. [PMID: 28485917 DOI: 10.1021/acsami.7b02386] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Hydrogen production from water based on photoelectrochemical (PEC) reactions is feasible to solve the urgent energy crisis. Herein, hierarchical 3D self-supporting WO3 micro-nano architectures in situ grown on W plates are successfully fabricated via ultrafast laser processing hybrid with thermal oxidation. Owing to the large surface area and efficient interface charge transfer, the W plate with hierarchical porous WO3 nanoparticle aggregates has been directly employed as the photoanode for excellent PEC performance, which exhibits a high photocurrent density of 1.2 mA cm-2 at 1.0 V vs Ag/AgCl (1.23 V vs RHE) under AM 1.5 G illumination and reveals excellent structural stability during long-term PEC water splitting reactions. The nanoscale and microscale features can be facilely tuned by controlling the laser processing parameters and the thermal oxidation conditions to achieve improved PEC activity. The presented hybrid method is simple, cost-effective, and controllable for large-scale fabrication, which should provide a new and general route that how the properties of conventional metal oxides can be improved via hierarchical 3D micro-nano configurations.
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Affiliation(s)
- Mingyong Cai
- Laser Materials Processing Research Center, School of Materials Science and Engineering, Tsinghua University , Beijing 100084, P. R. China
| | - Peixun Fan
- Laser Materials Processing Research Center, School of Materials Science and Engineering, Tsinghua University , Beijing 100084, P. R. China
| | - Jiangyou Long
- Laser Materials Processing Research Center, School of Materials Science and Engineering, Tsinghua University , Beijing 100084, P. R. China
| | - Jinpeng Han
- Laser Materials Processing Research Center, School of Materials Science and Engineering, Tsinghua University , Beijing 100084, P. R. China
| | - Yi Lin
- Laser Materials Processing Research Center, School of Materials Science and Engineering, Tsinghua University , Beijing 100084, P. R. China
| | - Hongjun Zhang
- Laser Materials Processing Research Center, School of Materials Science and Engineering, Tsinghua University , Beijing 100084, P. R. China
| | - Minlin Zhong
- Laser Materials Processing Research Center, School of Materials Science and Engineering, Tsinghua University , Beijing 100084, P. R. China
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39
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Garner LE, Steirer KX, Young JL, Anderson NC, Miller EM, Tinkham JS, Deutsch TG, Sellinger A, Turner JA, Neale NR. Covalent Surface Modification of Gallium Arsenide Photocathodes for Water Splitting in Highly Acidic Electrolyte. CHEMSUSCHEM 2017; 10:767-773. [PMID: 27943610 DOI: 10.1002/cssc.201601408] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 10/27/2016] [Indexed: 06/06/2023]
Abstract
Efficient water splitting using light as the only energy input requires stable semiconductor electrodes with favorable energetics for the water-oxidation and proton-reduction reactions. Strategies to tune electrode potentials using molecular dipoles adsorbed to the semiconductor surface have been pursued for decades but are often based on weak interactions and quickly react to desorb the molecule under conditions relevant to sustained photoelectrolysis. Here, we show that covalent attachment of fluorinated, aromatic molecules to p-GaAs(1 0 0) surfaces can be employed to tune the photocurrent onset potentials of p-GaAs(1 0 0) photocathodes and reduce the external energy required for water splitting. Results indicate that initial photocurrent onset potentials can be shifted by nearly 150 mV in pH -0.5 electrolyte under 1 Sun (1000 W m-2 ) illumination resulting from the covalently bound surface dipole. Though X-ray photoelectron spectroscopy analysis reveals that the covalent molecular dipole attachment is not robust under extended 50 h photoelectrolysis, the modified surface delays arsenic oxide formation that results in a p-GaAs(1 0 0) photoelectrode operating at a sustained photocurrent density of -20.5 mA cm-2 within -0.5 V of the reversible hydrogen electrode.
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Affiliation(s)
- Logan E Garner
- Chemistry & Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado, 80401, United States
| | - K Xerxes Steirer
- Materials Science Center, National Renewable Energy Laboratory, Golden, Colorado, CO 80401, United States
- Current address: Department of Physics, Colorado School of Mines, Golden, Colorado, CO 80401, United States
| | - James L Young
- Chemistry & Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado, 80401, United States
| | - Nicholas C Anderson
- Chemistry & Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado, 80401, United States
| | - Elisa M Miller
- Chemistry & Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado, 80401, United States
| | - Jonathan S Tinkham
- Department of Chemistry and Materials Science Program, Colorado School of Mines, Golden, Colorado, 80401, United States
| | - Todd G Deutsch
- Chemistry & Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado, 80401, United States
| | - Alan Sellinger
- Chemistry & Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado, 80401, United States
- Department of Chemistry and Materials Science Program, Colorado School of Mines, Golden, Colorado, 80401, United States
| | - John A Turner
- Chemistry & Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado, 80401, United States
| | - Nathan R Neale
- Chemistry & Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado, 80401, United States
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40
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Blumenfeld CM, Lau M, Gray HB, Müller AM. Mixed‐Metal Tungsten Oxide Photoanode Materials Made by Pulsed‐Laser in Liquids Synthesis. Chemphyschem 2017; 18:1091-1100. [DOI: 10.1002/cphc.201601285] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Indexed: 12/19/2022]
Affiliation(s)
- Carl M. Blumenfeld
- Beckman Institute Division of Chemistry and Chemical Engineering California Institute of Technology 1200 E California Blvd., Mail Code 139-74 Pasadena CA 91125 USA
| | - Marcus Lau
- Permanent address: Technical Chemistry I University of Duisburg-Essen Universitätsstrasse 7 45141 Essen Germany
| | - Harry B. Gray
- Beckman Institute Division of Chemistry and Chemical Engineering California Institute of Technology 1200 E California Blvd., Mail Code 139-74 Pasadena CA 91125 USA
| | - Astrid M. Müller
- Beckman Institute Division of Chemistry and Chemical Engineering California Institute of Technology 1200 E California Blvd., Mail Code 139-74 Pasadena CA 91125 USA
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41
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Lee H, Kim M, Sohn D, Kim SH, Oh SG, Im SS, Kim IS. Electrospun tungsten trioxide nanofibers decorated with palladium oxide nanoparticles exhibiting enhanced photocatalytic activity. RSC Adv 2017. [DOI: 10.1039/c6ra24935c] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Tungsten trioxide (WO3) based nanofibers have many advantages as photocatalysts due to its band gap which fits with readily accessible light sources.
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Affiliation(s)
- Hoik Lee
- Nano Fusion Technology Research Lab
- Division
- of Frontier Fibers
- Institute for Fiber Engineering (IFES)
- Interdisciplinary Cluster for Cutting Edge Research, (ICCER)
| | - Myungwoong Kim
- Department of Chemistry
- Inha University
- Incheon 22212
- Korea
| | - Daewon Sohn
- Department of Chemistry and Research Institute for Natural Sciences
- Hanyang University
- Seoul 133-791
- Korea
| | - Seong Hun Kim
- Department of Chemical Engineering
- Hanyang University
- Seoul 133-791
- Korea
| | - Seong-Geun Oh
- Department of Organic and Nano Engineering
- College of Engineering
- Hanyang University
- Seoul
- Korea
| | - Seung Soon Im
- Department of Organic and Nano Engineering
- College of Engineering
- Hanyang University
- Seoul
- Korea
| | - Ick Soo Kim
- Nano Fusion Technology Research Lab
- Division
- of Frontier Fibers
- Institute for Fiber Engineering (IFES)
- Interdisciplinary Cluster for Cutting Edge Research, (ICCER)
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