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Du Y, Arifuddin AA, Qin H, Yan S, Zou Z. Thermal-Stabilized Protonated TiO 2 for Heat-Accelerated Photoelectrochemical Water Splitting. J Phys Chem Lett 2024; 15:5681-5688. [PMID: 38767856 DOI: 10.1021/acs.jpclett.4c01154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Enhancing the charge separation efficiency is a big challenge that limits the energy conversion efficiency of photoelectrochemical (PEC) water splitting. Surface states generated by protonation of TiO2 are the efficient charge separation passageways to massively accept or transfer the photogenerated electrons. However, a challenge is to avoid the deprotonation of a protonated TiO2 photoelectrode at the operation temperature. Here, we found that the terminal hydroxyl group (OHT) as surface states on the TiO2 surface generated via electrochemical protonation of TiO2 at 90 °C [90-TiO2-x-(OH)x] is thermally stable. As a result, the thermally enhanced photocurrent of the 90-TiO2-x-(OH)x electrode reached 1.05 mA cm-2 under 80 °C, and the stability was maintained up to 10 h with a slight photocurrent decrease of 3%. The thermally stable surface states as charge separation paths provide an effective method to couple the heat field with the PEC process via thermal-stimulating hopping of polarons.
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Affiliation(s)
- Yu Du
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, People's Republic of China
| | - Alam Andi Arifuddin
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, People's Republic of China
| | - Hao Qin
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, People's Republic of China
- Wuxi Little Swan Electric Company, Limited, 18 Changjiang South Road, Wuxi, Jiangsu 214028, People's Republic of China
| | - Shicheng Yan
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, People's Republic of China
| | - Zhigang Zou
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, People's Republic of China
- Jiangsu Key Laboratory for Nano Technology, Nanjing University, 22 Hankou Road, Nanjing, Jiangsu 210093, People's Republic of China
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2
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Li Y, Zhang Q, Chong Y, Huang WH, Chen CL, Jin X, Chen G, Fan Z, Qiu Y, Ye D. Efficient Photothermal Catalytic Oxidation Enabled by Three-Dimensional Nanochannel Substrates. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:5153-5161. [PMID: 38456428 DOI: 10.1021/acs.est.3c09077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
Photothermal catalysis exhibits promising prospects to overcome the shortcomings of high-energy consumption of traditional thermal catalysis and the low efficiency of photocatalysis. However, there is still a challenge to develop catalysts with outstanding light absorption capability and photothermal conversion efficiency for the degradation of atmospheric pollutants. Herein, we introduced the Co3O4 layer and Pt nanoclusters into the three-dimensional (3D) porous membrane through the atomic layer deposition (ALD) technique, leading to a Pt/Co3O4/AAO monolithic catalyst. The 3D ordered nanochannel structure can significantly enhance the solar absorption capacity through the light-trapping effect. Therefore, the embedded Pt/Co3O4 catalyst can be rapidly heated and the O2 adsorbed on the Pt clusters can be activated to generate sufficient O2- species, exhibiting outstanding activity for the diverse VOCs (toluene, acetone, and formaldehyde) degradation. Optical characterization and simulation calculation confirmed that Pt/Co3O4/AAO exhibited state-of-the-art light absorption and a notable localized surface plasmon resonance (LSPR) effect. In situ diffuse reflectance infrared Fourier transform spectrometry (in situ DRIFTS) studies demonstrated that light irradiation can accelerate the conversion of intermediates during toluene and acetone oxidation, thereby inhibiting byproduct accumulation. Our finding extends the application of AAO's optical properties in photothermal catalytic degradation of air pollutants.
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Affiliation(s)
- Yifei Li
- School of Environment and Energy, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, South China University of Technology, Guangzhou, Guangdong 510000, China
| | - Qianpeng Zhang
- State Key Laboratory of Photovoltaic Science and Technology, Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and Perception, Institute of Optoelectronics, Fudan University, Shanghai 200433, China
| | - Yanan Chong
- School of Environment and Energy, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, South China University of Technology, Guangzhou, Guangdong 510000, China
| | - Wei-Hsiang Huang
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu 30076, Taiwan
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology (NTUST), Taipei 10607, Taiwan
| | - Chi-Liang Chen
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu 30076, Taiwan
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology (NTUST), Taipei 10607, Taiwan
| | - Xiaojing Jin
- School of Environment and Energy, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, South China University of Technology, Guangzhou, Guangdong 510000, China
- College of Light Chemical Industry and Materials Engineering, Shunde Polytechnic, Foshan 528333, P. R. China
| | - Guangxu Chen
- School of Environment and Energy, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, South China University of Technology, Guangzhou, Guangdong 510000, China
| | - Zhiyong Fan
- Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 999077, Hong Kong SAR, China
- State Key Laboratory of Advanced Displays and Optoelectronics Technologies, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 999077, Hong Kong SAR, China
| | - Yongcai Qiu
- School of Environment and Energy, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, South China University of Technology, Guangzhou, Guangdong 510000, China
| | - Daiqi Ye
- School of Environment and Energy, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, South China University of Technology, Guangzhou, Guangdong 510000, China
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3
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Lei Y, Chen H, Shu C, Chen C. Fe- and S-Modified BiOI as Catalysts to Oxygen Evolution and Hydrogen Evolution Reactions in Overall Photoelectrochemical Water Splitting. MATERIALS (BASEL, SWITZERLAND) 2023; 17:6. [PMID: 38203860 PMCID: PMC10780252 DOI: 10.3390/ma17010006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/03/2023] [Accepted: 12/07/2023] [Indexed: 01/12/2024]
Abstract
Developing catalysts with superior activity to hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is equally important to the overall photoelectrochemical water splitting to produce hydrogen. In this work, bismuth oxyiodide (BiOI), iron-modified bismuth iodide Fe/BiOI, and the sulfurized S-Fe/BiOI were prepared using the solvothermal method. The three materials all have good absorption ability for visible light. The photoelectrochemical catalytic activity of BiOI to oxygen evolution reaction (OER) is significantly enhanced after iron modification, while the sulfurized product S-Fe/BiOI exhibits better catalytic activity to hydrogen evolution reaction (HER). Hence, OER and HER can be simultaneously catalyzed by using Fe/BiOI and S-Fe/BiOI as anodic and cathodic catalysts to facilitate the overall photoelectrochemical water splitting process.
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Affiliation(s)
- Yu Lei
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
- Chongqing Key Laboratory of Materials Surface & Interface Science, Chongqing University of Arts and Sciences, Chongqing 402160, China; (H.C.); (C.S.)
| | - Hongdian Chen
- Chongqing Key Laboratory of Materials Surface & Interface Science, Chongqing University of Arts and Sciences, Chongqing 402160, China; (H.C.); (C.S.)
| | - Chenyang Shu
- Chongqing Key Laboratory of Materials Surface & Interface Science, Chongqing University of Arts and Sciences, Chongqing 402160, China; (H.C.); (C.S.)
| | - Changguo Chen
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
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4
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Aziz SKT, Awasthi M, Guria S, Umekar M, Karajagi I, Riyajuddin SK, Siddhartha KVR, Saini A, Potbhare A, Chaudhary RG, Vishal V, Ghosh PC, Dutta A. Electrochemical water splitting by a bidirectional electrocatalyst. STAR Protoc 2023; 4:102448. [PMID: 37454297 PMCID: PMC10511913 DOI: 10.1016/j.xpro.2023.102448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 06/07/2023] [Accepted: 06/19/2023] [Indexed: 07/18/2023] Open
Abstract
The presence of efficient energy storage and conversion technologies is essential for the future energy infrastructure. Here, we describe crafting a heterostructure composed of a suitably interlinked CeO2 and polycrystalline Bi2O3 dopant prepared on a reduced graphene oxide (Ce_Bi2O3@rGO) surface. This material exhibits exceptional electrocatalytic hydrogen and oxygen evolution reaction in alkaline water (pH∼14.0) to trigger the full water-splitting cycle as a Janus catalyst. The stepwise catalyst preparation and electrochemical cell assembly for simultaneous hydrogen and oxygen evolution have been narrated. For complete details on the use and execution of this protocol, please refer to Aziz et al. (2022).1.
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Affiliation(s)
- S K Tarik Aziz
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Mahendra Awasthi
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Somnath Guria
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Mayuri Umekar
- P.G. Department of Chemistry, S.K. Porwal College, Kamptee, Maharashtra 441001, India
| | - Imran Karajagi
- Department of Energy Science and Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - S K Riyajuddin
- Institute of Nano Science and Technology, Sector 81, Mohali, Punjab 140306, India
| | - K V R Siddhartha
- Department of Energy Science and Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Abhishek Saini
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Ajay Potbhare
- P.G. Department of Chemistry, S.K. Porwal College, Kamptee, Maharashtra 441001, India
| | - Ratiram G Chaudhary
- P.G. Department of Chemistry, S.K. Porwal College, Kamptee, Maharashtra 441001, India
| | - Vikram Vishal
- Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India; Department of Earth Science, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India; National Center of Excellence-CCU, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Prakash C Ghosh
- Department of Energy Science and Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Arnab Dutta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India; Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India; National Center of Excellence-CCU, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
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5
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Zhao B, Huang X, Ding Y, Bi Y. Bias-Free Solar-Driven Syngas Production: A Fe 2 O 3 Photoanode Featuring Single-Atom Cobalt Integrated with a Silver-Palladium Cathode. Angew Chem Int Ed Engl 2023; 62:e202213067. [PMID: 36346191 DOI: 10.1002/anie.202213067] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Indexed: 11/11/2022]
Abstract
Photoelectrochemical syngas production from aqueous CO2 is a promising technique for carbon capture and utilization. Herein, we demonstrate the efficient and tunable syngas production by integrating a single-atom cobalt-catalyst-decorated α-Fe2 O3 photoanode with a bimetallic Ag/Pd alloy cathode. A record syngas production activity of 81.9 μmol cm-2 h-1 (CO/H2 ratio: ≈1 : 1) was achieved under artificial sunlight (AM 1.5 G) with an excellent durability. Systematic studies reveal that the Co single atoms effectively extract the holes from Fe2 O3 photoanodes and serve as active sites for promoting oxygen evolution. Simultaneously, the Pd and Ag atoms in bimetallic cathodes selectively adsorb CO2 and protons for facilitating CO production. Further incorporation with a photovoltaic, to allow solar light (>600 nm) to be utilized, yields a bias-free CO2 reduction device with solar-to-CO and solar-to-H2 conversion efficiencies up to 1.33 and 1.36 %, respectively.
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Affiliation(s)
- Bin Zhao
- State Key Laboratory for Oxo Synthesis & Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, CAS, Lanzhou, 730000, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiaojuan Huang
- State Key Laboratory for Oxo Synthesis & Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, CAS, Lanzhou, 730000, P. R. China
| | - Yong Ding
- Key Laboratory of Advanced Catalysis of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Yingpu Bi
- State Key Laboratory for Oxo Synthesis & Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, CAS, Lanzhou, 730000, P. R. China
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6
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Du Y, Yan S, Zou Z. Thermally Accelerated Surface Polaron Hopping in Photoelectrochemical Water Splitting. J Phys Chem Lett 2023; 14:413-419. [PMID: 36622299 DOI: 10.1021/acs.jpclett.2c03567] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Electron-hole separation is a main challenge that limits the energy efficiency of photoelectrochemical water splitting for hydrogen fuel production. Surface polaron states with an energy level distribution near the conduction band are highly efficient charge separation passageways to massively accept or transfer the photogenerated electrons. Here, we found that the charge separation via surface polaron states could be further enhanced by heating (<100 °C) to accelerate the electron mobility of surface polaron states. As a result of heating from 30 to 70 °C, the saturated photocurrent increased about 34.5% under 1 sun and 18.3% under 10 suns from heat-induced increase in electron flux of surface polaron states. The heat-sensitive surface-state electron transfer provides a new heat-photoelectricity coupling mechanism to guide the design of new photoanodes that are available for complementary multienergy systems with high energy efficiency.
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Affiliation(s)
- Yu Du
- Collaborative Innovation Center of Advanced Microstructures, Eco-Materials and Renewable Energy Research Center (ERERC), College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P. R. China
| | - Shicheng Yan
- Collaborative Innovation Center of Advanced Microstructures, Eco-Materials and Renewable Energy Research Center (ERERC), College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P. R. China
| | - Zhigang Zou
- Collaborative Innovation Center of Advanced Microstructures, Eco-Materials and Renewable Energy Research Center (ERERC), College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P. R. China
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory for Nano Technology, School of Physics, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P. R. China
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7
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Methods and strategies for producing porous photocatalysts: Review. J SOLID STATE CHEM 2023. [DOI: 10.1016/j.jssc.2023.123834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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8
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Zhao HP, Zhu ML, Shi HY, Zhou QQ, Chen R, Lin SW, Tong MH, Ji MH, Jiang X, Liao CX, Chen YX, Lu CZ. Cerium-Doped Iron Oxide Nanorod Arrays for Photoelectrochemical Water Splitting. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27249050. [PMID: 36558179 PMCID: PMC9780861 DOI: 10.3390/molecules27249050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022]
Abstract
In this work, a simple one-step hydrothermal method was employed to prepare the Ce-doped Fe2O3 ordered nanorod arrays (CFT). The Ce doping successfully narrowed the band gap of Fe2O3, which improved the visible light absorption performance. In addition, with the help of Ce doping, the recombination of electron/hole pairs was significantly inhibited. The external voltage will make the performance of the Ce-doped sample better. Therefore, the Ce-doped Fe2O3 has reached superior photoelectrochemical (PEC) performance with a high photocurrent density of 1.47 mA/cm2 at 1.6 V vs. RHE (Reversible Hydrogen Electrode), which is 7.3 times higher than that of pristine Fe2O3 nanorod arrays (FT). The Hydrogen (H2) production from PEC water splitting of Fe2O3 was highly improved by Ce doping to achieve an evolution rate of 21 μmol/cm2/h.
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Affiliation(s)
- Hai-Peng Zhao
- School of Rare Earth, Jiangxi University of Science and Technology, Ganzhou 341000, China
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, China
| | - Mei-Ling Zhu
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, China
- School of Rare Earths, University of Science and Technology of China, Hefei 230026, China
| | - Hao-Yan Shi
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, China
- College of Chemical Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qian-Qian Zhou
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, China
| | - Rui Chen
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, China
| | - Shi-Wei Lin
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, China
| | - Mei-Hong Tong
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, China
| | - Ming-Hao Ji
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, China
| | - Xia Jiang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, China
| | - Chen-Xing Liao
- School of Rare Earth, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Yan-Xin Chen
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, China
- College of Chemical Science, University of Chinese Academy of Sciences, Beijing 100049, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China
- Correspondence: (Y.-X.C.); (C.-Z.L.)
| | - Can-Zhong Lu
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, China
- School of Rare Earths, University of Science and Technology of China, Hefei 230026, China
- College of Chemical Science, University of Chinese Academy of Sciences, Beijing 100049, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China
- Correspondence: (Y.-X.C.); (C.-Z.L.)
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9
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Liu J, Luo Z, Mao X, Dong Y, Peng L, Sun-Waterhouse D, Kennedy JV, Waterhouse GIN. Recent Advances in Self-Supported Semiconductor Heterojunction Nanoarrays as Efficient Photoanodes for Photoelectrochemical Water Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2204553. [PMID: 36135974 DOI: 10.1002/smll.202204553] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 08/23/2022] [Indexed: 06/16/2023]
Abstract
Growth of semiconductor heterojunction nanoarrays directly on conductive substrates represents a promising strategy toward high-performance photoelectrodes for photoelectrochemical (PEC) water splitting. By controlling the growth conditions, heterojunction nanoarrays with different morphologies and semiconductor components can be fabricated, resulting in greatly enhanced light-absorption properties, stabilities, and PEC activities. Herein, recent progress in the development of self-supported heterostructured semiconductor nanoarrays as efficient photoanode catalysts for water oxidation is reviewed. Synthetic methods for the fabrication of heterojunction nanoarrays with specific compositions and structures are first discussed, including templating methods, wet chemical syntheses, electrochemical approaches and chemical vapor deposition (CVD) methods. Then, various heterojunction nanoarrays that have been reported in recent years based on particular core semiconductor scaffolds (e.g., TiO2 , ZnO, WO3 , Fe2 O3 , etc.) are summarized, placing strong emphasis on the synergies generated at the interface between the semiconductor components that can favorably boost PEC water oxidation. Whilst strong progress has been made in recent years to enhance the visible-light responsiveness, photon-to-O2 conversion efficiency and stability of photoanodes based on heterojunction nanoarrays, further advancements in all these areas are needed for PEC water splitting to gain any traction alongside photovoltaic-electrochemical (PV-EC) systems as a viable and cost-effective route toward the hydrogen economy.
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Affiliation(s)
- Jinlong Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P. R. China
- School of Chemical Sciences, The University of Auckland, Auckland, 1142, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, 6140, New Zealand
| | - Ziyu Luo
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P. R. China
| | - Xichen Mao
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P. R. China
| | - Yusong Dong
- School of Chemical Sciences, The University of Auckland, Auckland, 1142, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, 6140, New Zealand
| | - Lishan Peng
- School of Chemical Sciences, The University of Auckland, Auckland, 1142, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, 6140, New Zealand
| | - Dongxiao Sun-Waterhouse
- School of Chemical Sciences, The University of Auckland, Auckland, 1142, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, 6140, New Zealand
| | - John V Kennedy
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, 6140, New Zealand
- National Isotope Centre, GNS Science, Lower Hutt, 5010, New Zealand
| | - Geoffrey I N Waterhouse
- School of Chemical Sciences, The University of Auckland, Auckland, 1142, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, 6140, New Zealand
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10
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Li Z, Huang H, Luo W, Hu Y, Fan R, Zhu Z, Wang J, Feng J, Li Z, Zou Z. Electrochemical creation of surface charge transfer channels on photoanodes for efficient solar water splitting. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)63986-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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11
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Gurgul M, Syrek K, Kozieł M, Pięta Ł, Zaraska L. Electrochemical growth and characterization of micro/nanostructured SnOx with crater-like morphology. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140608] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Bamola P, Rawat S, Tanwar M, Sharma M, Dwivedi C, Kumar R, Sharma H. Enhanced interfacial charge transfer on strain-induced 2D-1D/MoS 2-TiO 2heterostructures for electrochemical and photocatalytic applications. NANOTECHNOLOGY 2022; 33:395704. [PMID: 35617938 DOI: 10.1088/1361-6528/ac73a3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 05/25/2022] [Indexed: 06/15/2023]
Abstract
Two-dimensional (2D)/one dimensionsal (1D)-MoS2/TiO2heterostructures have proven to be potent for photocatalytic applications. Enhancement of a heterostructure's photocatalytic activity may be influenced by the accumulation of strain at the interface, which affects the interfacial interaction. Keeping this in mind, the present paper reports strain-accumulated interfacial modification of 2D/1D-MoS2/TiO2heterostructures for the enhancement of photocatalytic activity. Two different synthesis methods, namely the hydrothermal and chemical vapor deposition (CVD) methods, are used for the growth of MoS2on TiO2nanostructures. Micro-Raman spectroscopy reveals that strain is accumulated at the interface of the growth of the MoS2over the TiO2nanostructures. It is further revealed that the MoS2/TiO2heterostructure synthesized by the CVD method induces compressive strain. Also, the heterostructure synthesized by the hydrothermal method induces tensile strain that modifies the charge separation at the interface, which is further confirmed by x-ray photoelectron spectroscopy (XPS). Moreover, ultraviolet photoelectron spectroscopy (UPS) reveals upward band-bending in the MoS2/TiO2heterostructure synthesized by the hydrothermal method. Similarly, the heterostructure synthesized by the CVD method shows downward band-bending that leads to improved charge separation at the interface. The modified interfaces of the heterostructures are further studied for electrochemical measurements using cyclic voltammetry (CV) and photocatalytic activity by degradation of a model compound.
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Affiliation(s)
- Priyanka Bamola
- Functional Nanomaterials Research Laboratory, Department of Physics, Doon University, Dehradun, Uttarakhand 248001, India
| | - Saurabh Rawat
- Functional Nanomaterials Research Laboratory, Department of Physics, Doon University, Dehradun, Uttarakhand 248001, India
| | - Manushree Tanwar
- Materials and Device Laboratory, Department of Physics, Indian Institute of Technology, Indore-453552, India
| | - Mohit Sharma
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore
| | - Charu Dwivedi
- Department of Chemistry, Doon University, Dehradun, Uttarakhand 248001, India
| | - Rajesh Kumar
- Materials and Device Laboratory, Department of Physics, Indian Institute of Technology, Indore-453552, India
| | - Himani Sharma
- Functional Nanomaterials Research Laboratory, Department of Physics, Doon University, Dehradun, Uttarakhand 248001, India
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13
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Meng L, Cheng C, Long R, Xu W, Li S, Tian W, Li L. Synergistic effect of atomic layer deposition-assisted cocatalyst and crystal facet engineering in SnS2 nanosheet for solar water oxidation. Sci Bull (Beijing) 2022; 67:1562-1571. [DOI: 10.1016/j.scib.2022.07.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/17/2022] [Accepted: 06/30/2022] [Indexed: 01/01/2023]
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14
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Li S, Xu W, Meng L, Tian W, Li L. Recent Progress on Semiconductor Heterojunction‐Based Photoanodes for Photoelectrochemical Water Splitting. SMALL SCIENCE 2022. [DOI: 10.1002/smsc.202100112] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
- Shengnan Li
- School of Physical Science and Technology Jiangsu Key Laboratory of Thin Films Center for Energy Conversion Materials & Physics (CECMP) Soochow University Suzhou 215006 P. R. China
| | - Weiwei Xu
- School of Physical Science and Technology Jiangsu Key Laboratory of Thin Films Center for Energy Conversion Materials & Physics (CECMP) Soochow University Suzhou 215006 P. R. China
| | - Linxing Meng
- School of Physical Science and Technology Jiangsu Key Laboratory of Thin Films Center for Energy Conversion Materials & Physics (CECMP) Soochow University Suzhou 215006 P. R. China
| | - Wei Tian
- School of Physical Science and Technology Jiangsu Key Laboratory of Thin Films Center for Energy Conversion Materials & Physics (CECMP) Soochow University Suzhou 215006 P. R. China
| | - Liang Li
- School of Physical Science and Technology Jiangsu Key Laboratory of Thin Films Center for Energy Conversion Materials & Physics (CECMP) Soochow University Suzhou 215006 P. R. China
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15
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Fan L, Wang Y, Jiao K. Enhancing oxygen transport in the ionomer film on platinum catalyst using ionic liquid additives. FUNDAMENTAL RESEARCH 2022; 2:230-236. [PMID: 38933169 PMCID: PMC11197526 DOI: 10.1016/j.fmre.2021.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 08/29/2021] [Accepted: 09/17/2021] [Indexed: 11/26/2022] Open
Abstract
The O2 permeation barrier across the nanoscale ionomer films on electrocatalysts contributes to a major performance loss of proton exchange membrane (PEM) fuel cells under low Pt loading. Enhancing O2 transport through the ionomer films is essential for developing low Pt loading catalyst materials in high-performance PEM fuel cells. This study found that adding an ionic liquid (IL) can effectively mitigate the dense ionomer ultrathin sublayer formed on the Pt surface, which severely hinders O2 transport to the catalyst sites. The molecular dynamics simulation results show that adding the IL significantly alters the ionomer ultrathin sublayer structure by inhibiting its tight arrangement of perfluorosulfonic acid chains but scarcely impacts the ultrathin sublayer thickness. Additionally, the IL addition provides a larger free space for O2 dissolution in the ultrathin sublayer. Consequently, due to IL molecules' presence, the O2 density in the ultrathin sublayer on the Pt surface is improved by an order of magnitude, which will benefit the catalytic efficiency, and the O2 permeation flux across the ionomer film is increased by up to 8 times, which will reduce the O2 transport loss of the catalyst layer.
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Affiliation(s)
- Linhao Fan
- State Key Laboratory of Engines, Tianjin University, 135 Yaguan Road, Tianjin 300350, China
- Renewable Energy Resources Laboratory, Department of Mechanical and Aerospace Engineering, University of California, Irvine, CA, 92697-3975, USA
| | - Yun Wang
- Renewable Energy Resources Laboratory, Department of Mechanical and Aerospace Engineering, University of California, Irvine, CA, 92697-3975, USA
| | - Kui Jiao
- State Key Laboratory of Engines, Tianjin University, 135 Yaguan Road, Tianjin 300350, China
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16
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Pan Z, Yang J, Kong J, Loh XJ, Wang J, Liu Z. "Porous and Yet Dense" Electrodes for High-Volumetric-Performance Electrochemical Capacitors: Principles, Advances, and Challenges. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2103953. [PMID: 34796698 PMCID: PMC8811823 DOI: 10.1002/advs.202103953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Indexed: 06/13/2023]
Abstract
With the ever-rapid miniaturization of portable, wearable electronics and Internet of Things, the volumetric performance is becoming a much more pertinent figure-of-merit than the conventionally used gravimetric parameters to evaluate the charge-storage capacity of electrochemical capacitors (ECs). Thus, it is essential to design the ECs that can store as much energy as possible within a limited space. As the most critical component in ECs, "porous and yet dense" electrodes with large ion-accessible surface area and optimal packing density are crucial to realize desired high volumetric performance, which have demonstrated to be rather challenging. In this review, the principles and fundamentals of ECs are first observed, focusing on the key understandings of the different charge storage mechanisms in porous electrodes. The recent and latest advances in high-volumetric-performance ECs, developed by the rational design and fabrication of "porous and yet dense" electrodes are then examined. Particular emphasis of discussions then concentrates on the key factors impacting the volumetric performance of porous carbon-based electrodes. Finally, the currently faced challenges, further perspectives and opportunities on those purposely engineered porous electrodes for high-volumetric-performance EC are presented, aiming at providing a set of guidelines for further design of the next-generation energy storage devices.
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Affiliation(s)
- Zhenghui Pan
- Department of Materials Science and EngineeringNational University of SingaporeSingapore117574Singapore
| | - Jie Yang
- Department of Electrical and Computer EngineeringNational University of SingaporeSingapore117583Singapore
| | - Junhua Kong
- Institute of Materials Research and Engineering (IMRE)A*STAR (Agency for Science, Technology and Research)2 Fusionopolis WaySingapore138634Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE)A*STAR (Agency for Science, Technology and Research)2 Fusionopolis WaySingapore138634Singapore
| | - John Wang
- Department of Materials Science and EngineeringNational University of SingaporeSingapore117574Singapore
| | - Zhaolin Liu
- Institute of Materials Research and Engineering (IMRE)A*STAR (Agency for Science, Technology and Research)2 Fusionopolis WaySingapore138634Singapore
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17
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Enhanced Photocatalytic Activity of ZnO–CdS Composite Nanostructures towards the Degradation of Rhodamine B under Solar Light. Catalysts 2022. [DOI: 10.3390/catal12010084] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A simple chemical precipitation route was utilized for the synthesis of ZnO nanoparticles (NPs), CdS NPs and ZnO–CdS nanocomposites (NCs). The synthesized nanostructures were examined for the crystal structure, morphology, optical properties and photodegradation activity of rhodamine B (RhB) dye. The ZnO–CdS NCs showed a mixed phase of hexagonal wurtzite structure for both ZnO NPs and CdS NPs. Pure ZnO NPs and CdS NPs possessed bandgaps of 3.2617 and 2.5261 eV, respectively. On the other hand, the composite nanostructures displayed a more narrow bandgap of 2.9796 eV than pure ZnO NPs. When compared to bare ZnO NPs, the PL intensity of near-band-edge emission at 381 nm was practically suppressed, suggesting a lower rate of photogenerated electron–hole (e−/h+) pairs recombination, resulting in enhanced photocatalytic activity. Under solar light, the composite nanostructures displayed a photodegradation efficiency of 98.16% towards of RhB dye. After four trials, the structural stability of ZnO–CdS NCs was verified.
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18
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Wang S, Wang X, Liu B, Guo Z, Ostrikov KK, Wang L, Huang W. Vacancy defect engineering of BiVO 4 photoanodes for photoelectrochemical water splitting. NANOSCALE 2021; 13:17989-18009. [PMID: 34726221 DOI: 10.1039/d1nr05691c] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Photoelectrochemical (PEC) water splitting has been regarded as a promising technology for sustainable hydrogen production. The development of efficient photoelectrode materials is the key to improve the solar-to-hydrogen (STH) conversion efficiency towards practical application. Bismuth vanadate (BiVO4) is one of the most promising photoanode materials with the advantages of visible light absorption, good chemical stability, nontoxic feature, and low cost. However, the PEC performance of BiVO4 photoanodes is limited by the relatively short hole diffusion length and poor electron transport properties. The recent rapid development of vacancy defect engineering has significantly improved the PEC performance of BiVO4. In this review article, the fundamental properties of BiVO4 are presented, followed by an overview of the methods for creating different kinds of vacancy defects in BiVO4 photoanodes. Then, the roles of vacancy defects in tuning the electronic structure, promoting charge separation, and increasing surface photoreaction kinetics of BiVO4 photoanodes are critically discussed. Finally, the major challenges and some encouraging perspectives for future research on vacancy defect engineering of BiVO4 photoanodes are presented, providing guidelines for the design of efficient BiVO4 photoanodes for solar fuel production.
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Affiliation(s)
- Songcan Wang
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China.
| | - Xin Wang
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China.
| | - Boyan Liu
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China.
| | - Zhaochen Guo
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China.
| | - Kostya Ken Ostrikov
- School of Chemistry and Physics and Centre for Materials Science Queensland University of Technology Brisbane, QLD 4000, Australia
| | - Lianzhou Wang
- Nanomaterials Centre, Australian Institute for Bioengineering and Nanotechnology and School of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia.
| | - Wei Huang
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China.
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19
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Chen P, Chen B, He M, Hu B. Combined effects of different sizes of ZnO and ZIF-8 nanoparticles co-exposure with Cd 2+ on HepG2 cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 786:147402. [PMID: 33975099 DOI: 10.1016/j.scitotenv.2021.147402] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 04/21/2021] [Accepted: 04/23/2021] [Indexed: 06/12/2023]
Abstract
Heavy metal and nanoparticles (NPs) emitted in the environment have attracted worldwide attention. But the combined effect of NPs and heavy metals is still unclear. In this study, the combined effect of zinc-based NPs and Cd2+ on HepG2 cells was investigated by combining biological indicator detection methods with time-resolved inductively coupled plasma mass spectrometry (TRA-ICP-MS) single cell analysis, and the combined effect of Zn2+ and Cd2+ was also investigated for a comparison. High-dose of ZnO or ZIF-8 NPs co-exposure with Cd2+ would reduce the cell viability while low-dose of ZnO or ZIF-8 NPs co-exposure with Cd2+showed antagonism and the particle size has no remarkable effect on the combined toxicity. In the antagonism, Zn2+ would increase cellular Zn amount through increasing the expression of ZIP8 and ZIP14 transporters to manage the ROS generation, but the zinc-based NPs would decrease expression of these transporters to decrease cellular Cd amount to help maintain the cell viability. Thus, we should hold a dialectical thinking about the pollution of NPs emissions in the environment.
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Affiliation(s)
- Pengyu Chen
- Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Beibei Chen
- Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Man He
- Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Bin Hu
- Department of Chemistry, Wuhan University, Wuhan 430072, China.
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20
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Tian L, Xin Q, Zhao C, Xie G, Akram MZ, Wang W, Ma R, Jia X, Guo B, Gong JR. Nanoarray Structures for Artificial Photosynthesis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2006530. [PMID: 33896110 DOI: 10.1002/smll.202006530] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/25/2021] [Indexed: 05/14/2023]
Abstract
Conversion and storage of solar energy into fuels and chemicals by artificial photosynthesis has been considered as one of the promising methods to address the global energy crisis. However, it is still far from the practical applications on a large scale. Nanoarray structures that combine the advantages of nanosize and array alignment have demonstrated great potential to improve solar energy conversion efficiency, stability, and selectivity. This article provides a comprehensive review on the utilization of nanoarray structures in artificial photosynthesis of renewable fuels and high value-added chemicals. First, basic principles of solar energy conversion and superiorities of using nanoarray structures in this field are described. Recent research progress on nanoarray structures in both abiotic and abiotic-biotic hybrid systems is then outlined, highlighting contributions to light absorption, charge transport and transfer, and catalytic reactions (including kinetics and selectivity). Finally, conclusions and outlooks on future research directions of nanoarray structures for artificial photosynthesis are presented.
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Affiliation(s)
- Liangqiu Tian
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
| | - Qi Xin
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Chang Zhao
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
| | - Guancai Xie
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
| | - Muhammad Zain Akram
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
| | - Wenrong Wang
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Renping Ma
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Xinrui Jia
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
| | - Beidou Guo
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
| | - Jian Ru Gong
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
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21
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Wang X, Gao C, Low J, Mao K, Duan D, Chen S, Ye R, Qiu Y, Ma J, Zheng X, Long R, Wu X, Song L, Zhu J, Xiong Y. Efficient photoelectrochemical CO 2 conversion for selective acetic acid production. Sci Bull (Beijing) 2021; 66:1296-1304. [PMID: 36654151 DOI: 10.1016/j.scib.2021.04.004] [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: 02/02/2021] [Revised: 03/18/2021] [Accepted: 03/29/2021] [Indexed: 01/20/2023]
Abstract
Amidst the development of photoelectrochemical (PEC) CO2 conversion toward practical application, the production of high-value chemicals beyond C1 compounds under mild conditions is greatly desired yet challenging. Here, through rational PEC device design by combining Au-loaded and N-doped TiO2 plate nanoarray photoanode with Zn-doped Cu2O dark cathode, efficient conversion of CO2 to CH3COOH has been achieved with an outstanding Faradaic efficiency up to 58.1% (91.5% carbon selectivity) at 0.5 V vs. Ag/AgCl. Temperature programmed desorption and in situ Raman spectra reveal that the Zn-dopant in Cu2O plays multiple roles in selective catalytic CO2 conversion, including local electronic structure manipulation and active site modification, which together promote the formation of intermediate *CH2/*CH3 for C-C coupling. Apart from that, it is also unveiled that the sufficient electron density provided by the Au-loaded and N-doped TiO2 plate nanoarray photoanode plays an equally important role by initiating multi-electron CO2 reduction. This work provides fresh insights into the PEC system design to reach the multi-electron reduction reaction and facilitate the C-C coupling reaction toward high-value multicarbon (C2+) chemical production via CO2 conversion.
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Affiliation(s)
- Xiaonong 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, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China; Institute of Energy, Hefei Comprehensive National Science Center, Hefei 230031, China
| | - Chao Gao
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, 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, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
| | - Keke Mao
- School of Energy and Environment Science, Anhui University of Technology, Maanshan 243032, China
| | - Delong Duan
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
| | - Shuangming Chen
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
| | - Run Ye
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
| | - Yunrui Qiu
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
| | - 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, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
| | - Xusheng Zheng
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 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, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 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, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 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, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
| | - Junfa Zhu
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 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, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China; Institute of Energy, Hefei Comprehensive National Science Center, Hefei 230031, China.
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Chang AM, Chen YH, Lai CC, Pu YC. Synergistic Effects of Surface Passivation and Charge Separation to Improve Photo-electrochemical Performance of BiOI Nanoflakes by Au Nanoparticle Decoration. ACS APPLIED MATERIALS & INTERFACES 2021; 13:5721-5730. [PMID: 33464818 DOI: 10.1021/acsami.0c18430] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
We demonstrate that the photoactivity of bismuth oxyiodide (BiOI) nanoflake (NF) photocathodes in photo-electrochemical (PEC) water splitting can be significantly enhanced by about 24-fold by thermal calcination under an air atmosphere and then surficial decoration of Au nanoparticles (NPs). To understand the key factors affecting the PEC efficiency in Au NP-decorated BiOI NF photoelectrodes, incident photon-to-current conversion efficiency, electrochemical impedance spectroscopy, photovoltage, and electrochemically active surface area measurements were performed. The analytic results presented that thermal calcining could produce mesopores, increasing active sites on the surface of BiOI NFs. In addition, the synergistic effects of surface-state passivation and charge separation were observed for the surficial Au NP decoration on BiOI NFs. Transient absorption spectroscopy coupled with PEC measurements confirmed that the lifetime of photogenerated electrons on the conduction band of BiOI NFs can be prolonged by Au NP decoration, resulting in higher probability to carry out water reduction. The current investigation presents important insights into the mechanism of charge carrier dynamics in metal-semiconductor nano-heterostructures, which is contributive to develop photoelectrode materials in solar fuel production.
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Affiliation(s)
- An-Mi Chang
- Department of Materials Science, National University of Tainan, Tainan 70005, Taiwan
| | - Yu-Hung Chen
- Department of Medicine, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Chien-Chih Lai
- Department of Materials Science, National University of Tainan, Tainan 70005, Taiwan
| | - Ying-Chih Pu
- Department of Materials Science, National University of Tainan, Tainan 70005, Taiwan
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Santos JS, Araújo PDS, Pissolitto YB, Lopes PP, Simon AP, Sikora MDS, Trivinho-Strixino F. The Use of Anodic Oxides in Practical and Sustainable Devices for Energy Conversion and Storage. MATERIALS (BASEL, SWITZERLAND) 2021; 14:E383. [PMID: 33466856 PMCID: PMC7830790 DOI: 10.3390/ma14020383] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 12/26/2020] [Accepted: 01/11/2021] [Indexed: 12/17/2022]
Abstract
This review addresses the main contributions of anodic oxide films synthesized and designed to overcome the current limitations of practical applications in energy conversion and storage devices. We present some strategies adopted to improve the efficiency, stability, and overall performance of these sustainable technologies operating via photo, photoelectrochemical, and electrochemical processes. The facile and scalable synthesis with strict control of the properties combined with the low-cost, high surface area, chemical stability, and unidirectional orientation of these nanostructures make the anodized oxides attractive for these applications. Assuming different functionalities, TiO2-NT is the widely explored anodic oxide in dye-sensitized solar cells, PEC water-splitting systems, fuel cells, supercapacitors, and batteries. However, other nanostructured anodic films based on WO3, CuxO, ZnO, NiO, SnO, Fe2O3, ZrO2, Nb2O5, and Ta2O5 are also explored and act as the respective active layers in several devices. The use of AAO as a structural material to guide the synthesis is also reported. Although in the development stage, the proof-of-concept of these devices demonstrates the feasibility of using the anodic oxide as a component and opens up new perspectives for the industrial and commercial utilization of these technologies.
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Affiliation(s)
- Janaina Soares Santos
- Department of Physics, Chemistry and Mathematics, Federal University of São Carlos (UFSCar), Via João Leme dos Santos Km 110, Sorocaba 18052-780, Brazil; (J.S.S.); (P.d.S.A.); (Y.B.P.); (P.P.L.)
| | - Patrícia dos Santos Araújo
- Department of Physics, Chemistry and Mathematics, Federal University of São Carlos (UFSCar), Via João Leme dos Santos Km 110, Sorocaba 18052-780, Brazil; (J.S.S.); (P.d.S.A.); (Y.B.P.); (P.P.L.)
| | - Yasmin Bastos Pissolitto
- Department of Physics, Chemistry and Mathematics, Federal University of São Carlos (UFSCar), Via João Leme dos Santos Km 110, Sorocaba 18052-780, Brazil; (J.S.S.); (P.d.S.A.); (Y.B.P.); (P.P.L.)
| | - Paula Prenholatto Lopes
- Department of Physics, Chemistry and Mathematics, Federal University of São Carlos (UFSCar), Via João Leme dos Santos Km 110, Sorocaba 18052-780, Brazil; (J.S.S.); (P.d.S.A.); (Y.B.P.); (P.P.L.)
| | - Anna Paulla Simon
- Department of Chemistry, Universidade Tecnológica Federal do Paraná (UTFPR), Via do Conhecimento Km 1, Pato Branco 85503-390, Brazil; (A.P.S.); (M.d.S.S.)
- Chemistry Graduate Program, Campus CEDETEG, Midwestern Parana State University (UNICENTRO), Alameda Élio Antonio Dalla Vecchia, Guarapuava 85040-167, Brazil
| | - Mariana de Souza Sikora
- Department of Chemistry, Universidade Tecnológica Federal do Paraná (UTFPR), Via do Conhecimento Km 1, Pato Branco 85503-390, Brazil; (A.P.S.); (M.d.S.S.)
- Chemistry Graduate Program, Campus CEDETEG, Midwestern Parana State University (UNICENTRO), Alameda Élio Antonio Dalla Vecchia, Guarapuava 85040-167, Brazil
| | - Francisco Trivinho-Strixino
- Department of Physics, Chemistry and Mathematics, Federal University of São Carlos (UFSCar), Via João Leme dos Santos Km 110, Sorocaba 18052-780, Brazil; (J.S.S.); (P.d.S.A.); (Y.B.P.); (P.P.L.)
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Lin J, Zhang Z, Chai J, Cao B, Deng X, Wang W, Liu X, Li G. Highly Efficient InGaN Nanorods Photoelectrode by Constructing Z-scheme Charge Transfer System for Unbiased Water Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2006666. [PMID: 33350056 DOI: 10.1002/smll.202006666] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/26/2020] [Indexed: 06/12/2023]
Abstract
Unbiased photoelectrochemical water splitting for the promising InGaN nanorods photoelectrode is highly desirable, but it is practically hindered by the serious recombination of charge carrier in bulk and surface of InGaN nanorods. Herein, an unbiased Z-scheme InGaN nanorods/Cu2 O nanoparticles heterostructured system with boosted interfacial charge transfer is constructed for the first time. The introduced Cu2 O nanoparticles pose double-sided effect on photoelectrochemical (PEC) performance of InGaN nanorods, which enables a robust hybrid structure and induces weakened light absorption capability simultaneously. As a result, the optimized InGaN/Cu2 O-1.5C photoelectrode with the uniform morphology exhibits an enhanced photocurrent density of ≈170 µA cm-2 at 0 V versus Pt, with 8.5-fold enhancement compared with pure InGaN nanorods. Comprehensive investigations into experimental results and theoretical calculations reveal that the electrons accumulation and holes depletion of Cu2 O facilitate to form a typical Z-scheme band alignment, thus providing a large photovoltage to drive unbiased water splitting and enhancing the stability of Cu2 O. This work provides a novel and facile strategy to achieve InGaN nanorods and other catalyst-based PEC water splitting without external bias, and to relieve the bottlenecks of charge transfer dynamics at the electrode bulk and electrode/electrolyte interface by constructing Z-scheme heterostructure.
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Affiliation(s)
- Jing Lin
- State Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Zhijie Zhang
- State Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Jixing Chai
- State Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Ben Cao
- Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Xi Deng
- State Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Wenliang Wang
- State Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China
- Department of Electronic Materials, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Xingjiang Liu
- Science and Technology on Power Sources Laboratory, Tianjin Institute of Power Sources, Tianjin, 300384, China
| | - Guoqiang Li
- State Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China
- Department of Electronic Materials, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China
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Wei Y, He H, Liu C, Yang L, Wang X, Li A, Xiong Y, Shen Q, Zhou Y, Zou Z. α-Fe 2O 3/Ag/CdS ternary heterojunction photoanode for efficient solar water oxidation. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00896j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By taking full advantage of the α-Fe2O3/Ag/CdS ternary heterojunction in charge separation and transfer, light harvesting and electrocatalytic water oxidation, obviously improved water oxidation performance was achieved on the photoanode.
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Affiliation(s)
- Yiqing Wei
- National Laboratory of Solid-State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, Jiangsu, China
| | - Huichao He
- State Key Laboratory of Environmental-Friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
| | - Chang Liu
- National Laboratory of Solid-State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, Jiangsu, China
| | - Liuqing Yang
- National Laboratory of Solid-State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, Jiangsu, China
| | - Xiaoyong Wang
- National Laboratory of Solid-State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, Jiangsu, China
| | - Aidong Li
- National Laboratory of Solid-State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, Jiangsu, China
| | - Yujie Xiong
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Qing Shen
- University of Electrocommunication, Grad Sch Informatics and Engineering, 1-5-1 Chofugaoka, Chofu, Tokyo 1828585, Japan
| | - Yong Zhou
- National Laboratory of Solid-State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, Jiangsu, China
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen 518172, Guangdong, China
| | - Zhigang Zou
- National Laboratory of Solid-State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, Jiangsu, China
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen 518172, Guangdong, China
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Fukina DG, Suleimanov EV, Boryakov AV, Zubkov SY, Koryagin AV, Volkova NS, Gorshkov AP. Structure analysis and electronic properties of ATe4+0.5Te6+1.5-xM6+xO6 (A=Rb, Cs, M6+=Mo, W) solid solutions with β-pyrochlore structure. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2020.121787] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Li C, Chen S, Gao X, Zhang W, Wang Y. Fabrication, characterization and photoelectrochemical properties of CdS/CdSe nanofilm co-sensitized ZnO nanorod arrays on Zn foil substrate. J Colloid Interface Sci 2020; 588:269-282. [PMID: 33412350 DOI: 10.1016/j.jcis.2020.12.078] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/18/2020] [Accepted: 12/21/2020] [Indexed: 11/19/2022]
Abstract
The photoelectrochemical (PEC) performance of ZnO is restricted by its low light absorption ability and high recombination rate of photogenerated carriers. In order to overcome these drawbacks, ZnO/CdS/CdSe heterostructures are prepared on Zn foil substrate using facile three-step methods containing hydrothermal growth, successive ionic layer adsorption reaction (SILAR) and modified chemical bath deposition (CBD). The effects of process parameters containing the number of SILAR cycles of CdS, sensitization sequence of CdS and CdSe, and precursors of CdSe on PEC performance of ZnO/CdS/CdSe heterostructures, and ZnO NRAs on PEC performance of CdS/CdSe co-sensitizer have been scrutinized. Through CdS and CdSe co-sensitization, a layer of CdS/CdSe nanofilm is conformally deposited on ZnO nanorod arrays (NRAs) observed by transmission electron microscopy (TEM). Both the visible-light absorption ability and separation efficiency of photogenerated carriers of ZnO NRAs are significantly enhanced evidenced by UV-vis diffuse reflectance absorption spectra, photoluminescence (PL) spectra and electrochemical impedance spectra. Due to the synergistic effect of ZnO NRAs and CdS/CdSe co-sensitizer, the ZnO/CdS/CdSe heterostructures with five SILAR cycles and one modified CBD cycle (ZnO-CdS5-CdSe) show efficient PEC properties with photocurrent density of 6.244 mA/cm2 at -0.2 V vs Ag/AgCl under light illumination of 100 mW/cm2, which are 57.28 and 4.73 times higher than those of pristine ZnO NRAs and CdS/CdSe clusters, respectively. Moreover, the photoconversion efficiency and incident photon to current conversion efficiency (IPCE) of the ZnO-CdS5-CdSe photoanode reach 4.381% and 80.92%, respectively. The heterostructures based on Zn foil substrate in this study can be a promising candidate for practical PEC application and other applications such as photocatalytic degradation and solar cell due to its low manufacturing cost, large-scale production and efficient PEC ability.
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Affiliation(s)
- Changlin Li
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Shangrong Chen
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Xiangxiang Gao
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Wei Zhang
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Yanfang Wang
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China.
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Ahn J, Lee S, Kim JH, Wajahat M, Sim HH, Bae J, Pyo J, Jahandar M, Lim DC, Seol SK. 3D-printed Cu 2O photoelectrodes for photoelectrochemical water splitting. NANOSCALE ADVANCES 2020; 2:5600-5606. [PMID: 36133885 PMCID: PMC9419027 DOI: 10.1039/d0na00512f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 08/23/2020] [Indexed: 06/16/2023]
Abstract
Photoelectrochemical (PEC) water splitting is an alternative to fossil fuel combustion involving the generation of renewable hydrogen without environmental pollution or greenhouse gas emissions. Cuprous oxide (Cu2O) is a promising semiconducting material for the simple reduction of hydrogen from water, in which the conduction band edge is slightly negative compared to the water reduction potential. However, the solar-to-hydrogen conversion efficiency of Cu2O is lower than the theoretical value due to a short carrier-diffusion length under the effective light absorption depth. Thus, increasing light absorption in the electrode-electrolyte interfacial layer of a Cu2O photoelectrode can enhance PEC performance. In this study, a Cu2O 3D photoelectrode comprised of pyramid arrays was fabricated using a two-step method involving direct-ink-writing of graphene structures. This was followed by the electrodeposition of a Cu current-collecting layer and a p-n homojunction Cu2O photocatalyst layer onto the printed structures. The performance for PEC water splitting was enhanced by increasing the total light absorption area (A a) of the photoelectrode via controlling the electrode topography. The 3D photoelectrode (A a = 3.2 cm2) printed on the substrate area of 1.0 cm2 exhibited a photocurrent (I ph) of -3.01 mA at 0.02 V (vs. RHE), which is approximately three times higher than that of a planar photoelectrode with an A a = 1.0 cm2 (I ph = -0.91 mA). Our 3D printing strategy provides a flexible approach for the design and the fabrication of highly efficient PEC photoelectrodes.
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Affiliation(s)
- Jinhyuck Ahn
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
- Electrical Functionality Material Engineering, University of Science and Technology (UST) Changwon-si Gyeongsangnam-do 51543 Republic of Korea
| | - Sanghyeon Lee
- Department of Mechanical Engineering, The University of Hong Kong Pokfulam Road Hong Kong China
| | - Jung Hyun Kim
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
- Electrical Functionality Material Engineering, University of Science and Technology (UST) Changwon-si Gyeongsangnam-do 51543 Republic of Korea
| | - Muhammad Wajahat
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
- Electrical Functionality Material Engineering, University of Science and Technology (UST) Changwon-si Gyeongsangnam-do 51543 Republic of Korea
| | - Ho Hyung Sim
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
- Electrical Functionality Material Engineering, University of Science and Technology (UST) Changwon-si Gyeongsangnam-do 51543 Republic of Korea
| | - Jongcheon Bae
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
- School of Materials Science and Engineering, Pusan National University Busan Republic of Korea
| | - Jaeyeon Pyo
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
| | - Muhammad Jahandar
- Surface Technology Division, Korea Institute of Materials Science (KIMS) Changwon-si Gyeongsangnam-do 51508 Republic of Korea
| | - Dong Chan Lim
- Surface Technology Division, Korea Institute of Materials Science (KIMS) Changwon-si Gyeongsangnam-do 51508 Republic of Korea
| | - Seung Kwon Seol
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
- Electrical Functionality Material Engineering, University of Science and Technology (UST) Changwon-si Gyeongsangnam-do 51543 Republic of Korea
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Jiang J, Wang H, An H, Du G. Controlled Growth of CdS Nanostep Structured Arrays to Improve Photoelectrochemical Performance. Front Chem 2020; 8:577582. [PMID: 33363104 PMCID: PMC7758423 DOI: 10.3389/fchem.2020.577582] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 09/18/2020] [Indexed: 01/08/2023] Open
Abstract
CdS nanostep-structured arrays were grown on F-doped tin oxide-coated glasses using a two-step hydrothermal method. The CdS arrays consisted of a straight rod acting as backbone and a nanostep-structured morphology on the surface. The morphology of the samples can be tuned by varying the reaction parameters. The phase purity, morphology, and structure of the CdS nanostep-structured arrays were characterized by X-ray diffraction and field emission scanning electron microscopy. The light and photoelectrochemical properties of the samples were estimated by a UV-Vis absorption spectrum and photoelectrochemical cells. The experimental results confirmed that the special nanostep structure is crucial for the remarkable enhancement of the photoelectrochemical performance. Compared with CdS rod arrays, the CdS nanostep-structured arrays showed increased absorption ability and dramatically improved photocurrent and energy conversion efficiency. This work may provide a new approach for improving the properties of photoelectrodes in the future.
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Affiliation(s)
- Jiangang Jiang
- College of Science, Northwest Agriculture and Forestry University, Shaanxi, China
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Nanostructured Anodic Copper Oxides as Catalysts in Electrochemical and Photoelectrochemical Reactions. Catalysts 2020. [DOI: 10.3390/catal10111338] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Recently, nanostructured copper oxides formed via anodizing have been intensively researched due to their potential catalytic applications in emerging issues. The anodic Cu2O and CuO nanowires or nanoneedles are attractive photo- and electrocatalysts since they show wide array of desired electronic and morphological features, such as highly-developed surface area. In CO2 electrochemical reduction reaction (CO2RR) copper and copper-based nanostructures indicate unique adsorption properties to crucial reaction intermediates. Furthermore, anodized copper-based materials enable formation of C2+ hydrocarbons and alcohols with enhanced selectivity. Moreover, anodic copper oxides provide outstanding turnover frequencies in electrochemical methanol oxidation at lowered overpotentials. Therefore, they can be considered as precious metals electrodes substituents in direct methanol fuel cells. Additionally, due to the presence of Cu(III)/Cu(II) redox couple, these materials find application as electrodes for non-enzymatic glucose sensors. In photoelectrochemistry, Cu2O-CuO heterostructures of anodic copper oxides with highly-developed surface area are attractive for water splitting. All the above-mentioned aspects of anodic copper oxides derived catalysts with state-of-the-art background have been reviewed within this paper.
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Zhu H, Yang Q, Liu D, Liu D, Zhang W, Chu Z, Wang X, Yan S, Li Z, Zou Z. Polaron States as a Massive Electron-Transfer Pathway at Heterojunction Interface. J Phys Chem Lett 2020; 11:9184-9194. [PMID: 33058679 DOI: 10.1021/acs.jpclett.0c02291] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
For heterojunction semiconductor photoelectrodes, efficient charge separation is localized in the junction-induced electric field region and charge transfer follows a band-to-band charge-transfer pathway. Here, we found that polaron states at the heterojunction interface have a function of storing and transferring electrons. As a successful demonstration, we verified that the polaron states (Ti3+OH) on TiO2 are not passivated when used to create a CdS/TiO2 heterojunction and function as an efficient pathway for massively capturing, storing, and transferring the electrons from conduction bands of both TiO2 and CdS, thus effectively enhancing the charge separation efficiency of the heterojunction photoanode. The electron throughput of polaron states remains a positive correlation with polaron state density. Interfacial electron transfer through the TiO2 surface polaron states has great potential application in the development of high-performance heterojunction devices based on TiO2.
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Affiliation(s)
- Heng Zhu
- Eco-Materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P.R. China
| | - Qimeng Yang
- Eco-Materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P.R. China
| | - Depei Liu
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P.R. China
| | - Duanduan Liu
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P.R. China
| | - Weining Zhang
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P.R. China
| | - Zijing Chu
- Eco-Materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P.R. China
| | - Xiaoming Wang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, Jiangsu 210023, P.R. China
| | - Shicheng Yan
- Eco-Materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P.R. China
| | - Zhaosheng Li
- Eco-Materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P.R. China
| | - Zhigang Zou
- Eco-Materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P.R. China
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P.R. China
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Pang Y, Chen H, Yang J, Wang B, Yang Z, Lv J, Pan Z, Xu G, Shen Z, Wu Y. Rational Regulation of Surface Free Radicals on TiO 2 Nanotube Arrays via Ag 2O-AgBiO 3 towards Enhanced Selective Photoelectrochemical Detection. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2002. [PMID: 33050572 PMCID: PMC7600186 DOI: 10.3390/nano10102002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 09/29/2020] [Accepted: 10/08/2020] [Indexed: 11/17/2022]
Abstract
Due to integrated advances in photoelectrochemical (PEC) functionalities for environment detection applications, one-dimensional (1D) TiO2 nanostructures provide a new strategy (PEC sensors) towards organics detection in wastewater. However, the unidealized selectivity to the oxidation of water and organics limits the PEC detection performance. Herein, we designed a ternary photoanode consisting of Ag2O-AgBiO3/TiO2 nanotube arrays (NTAs) to solve this issue by using a facile one-step precipitation reaction. High oxidation capacity for organics is achieved by regulating the surface free radicals properly through the heterostructure formed between the interface of TiO2 and AgBiO3. More importantly, as a trap for electron capture, Ag2O in this ternary system could not only further improve the separation efficiency of charge carriers, but also capture electrons transferred to the TiO2 conduction band, thus reducing the electrons transferred to the external circuit and the corresponding background photocurrent when detecting organics. As a result, the reconstructed TiO2 NTAs decrease their photocurrent response to water and enhance their response to organics, thus presenting lower oxidation activity to water and higher activity to organics, that is, highly selective oxidation characteristics. This work provides more insights into the impact of charge transfer and surface free radicals on developing promising and efficient PEC sensors for organics.
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Affiliation(s)
- Yajun Pang
- School of Engineering, Zhejiang A&F University, Hangzhou 311300, China; (Y.P.); (J.Y.); (Z.S.)
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China; (B.W.); (Z.Y.); (J.L.); (Y.W.)
| | - Hao Chen
- School of Engineering, Zhejiang A&F University, Hangzhou 311300, China; (Y.P.); (J.Y.); (Z.S.)
| | - Jin Yang
- School of Engineering, Zhejiang A&F University, Hangzhou 311300, China; (Y.P.); (J.Y.); (Z.S.)
| | - Bo Wang
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China; (B.W.); (Z.Y.); (J.L.); (Y.W.)
| | - Zhenyu Yang
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China; (B.W.); (Z.Y.); (J.L.); (Y.W.)
| | - Jun Lv
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China; (B.W.); (Z.Y.); (J.L.); (Y.W.)
| | - Zhenghui Pan
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Singapore;
| | - Guangqing Xu
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China; (B.W.); (Z.Y.); (J.L.); (Y.W.)
| | - Zhehong Shen
- School of Engineering, Zhejiang A&F University, Hangzhou 311300, China; (Y.P.); (J.Y.); (Z.S.)
| | - Yucheng Wu
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China; (B.W.); (Z.Y.); (J.L.); (Y.W.)
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Liu WF, Qiu QM, Zhang M, Su ZM, An Q, Lv H, Jia Z, Yang GY. Two new Cu-based borate catalysts with cubic supramolecular cages for efficient catalytic hydrogen evolution. Dalton Trans 2020; 49:10156-10161. [PMID: 32662802 DOI: 10.1039/d0dt01994a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Focusing on renewable energy, we are devoted to developping efficient, robust and low cost water reduction catalysts (WRCs). Two new Cu-based borate catalysts, namely H2Na2K2[(μ4-O)Cu4@B20O32(OH)8]·21H2O (1) and H2Rb1.6K2.4[(μ4-O)Cu4@B20O32 (OH)8]·15H2O (2), with cubic supramolecular cages were synthesized under a hydrothermal condition. Moreover, new copper complexes were applied as water reduction catalysts (WRCs) in the presence of [Ir(ppy)2(dtbbpy)][PF6] as photosensitizer and triethanolamine (TEOA) as the sacrificial electron donor. Nevertheless, the main active place is attributed to the centre of Borates [(μ4-O)Cu4@B20O32(OH)8], and the atomic radius of the counter cation would be the critical factor of the photocatalytic activity. Increasing the atomic radius from the Na atom to the Rb atom, causes the photocatalytic activity to decrease efficiently. The experimental results match well with the density functional theory (DFT) conclusion. It is noteworthy to mention that our research not only enriches the Cu-based borate chemistry, but also investigates the photocatalytic activity of Cu-based borates. This would guide us through the borate synthesis and to develop their applications toward energy and the environment.
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Affiliation(s)
- Wen-Fang Liu
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
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An integrated thermoelectric-assisted photoelectrochemical system to boost water splitting. Sci Bull (Beijing) 2020; 65:1163-1169. [PMID: 36659145 DOI: 10.1016/j.scib.2020.03.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 03/11/2020] [Accepted: 03/25/2020] [Indexed: 01/21/2023]
Abstract
Common solar-driven photoelectrochemical (PEC) cells for water splitting were designed by using semiconducting photoactive materials as working photoelectrodes to capture sunlight. Due to the thermodynamic requirement of 1.23 eV and kinetic energy loss of about 0.6 eV, a photo-voltage of 1.8 V produced by PEC cells is generally required for spontaneous water splitting. Therefore, the minimum bandgap of 1.8 eV is demanded for photoactive materials in single-photoelectrode PEC cells, and the bandgap of about 1 eV for back photoactive materials is appropriate in tandem PEC cells. All these PEC cells cannot effectively utilize the infrared light from 1250 to 2500 nm. In order to realize the full spectrum utilization of solar light, here, we develop a solar-driven PEC water splitting system integrated with a thermoelectric device. The key feature of this system is that the thermoelectric device produces a voltage as an additional bias for the PEC system by using the temperature difference between the incident infrared-light heated aqueous electrolyte in the PEC cell as the hot source and unirradiated external water as the cold source. Compared to a reference PEC system without the thermoelectric device, this system has a significantly improved overall water splitting activity of 1.6 times and may provide a strategy for accelerating the application of full spectrum solar light-driven PEC cells for hydrogen production.
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Pang Y, Zang W, Kou Z, Zhang L, Xu G, Lv J, Gao X, Pan Z, Wang J, Wu Y. Assembling of Bi atoms on TiO 2 nanorods boosts photoelectrochemical water splitting of semiconductors. NANOSCALE 2020; 12:4302-4308. [PMID: 32025688 DOI: 10.1039/d0nr00004c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Low photoconversion efficiency, high charge transfer resistance and fast recombination rate are the bottlenecks of semiconductor nanomaterials in photoelectrochemical (PEC) water splitting, where the introduction of an appropriate co-catalyst is an effective strategy to improve their performance. In the present study, we have purposely designed atomic-scale dispersed bismuth (Bi) assembled on titanium dioxide nanorods (TiO2), and demonstrated its effective role as a co-catalyst in enhancing the PEC water splitting performance of TiO2. As a result, functionalized Bi/TiO2 generates a high photocurrent intensity at 1.23 VRHE under simulated solar light irradiation, which is 4-fold higher than that of pristine TiO2, exhibiting a significantly improved PEC performance for water splitting. The strategy presented in this study opens a new window for the construction of non-precious metals dispersed at atomic scales as efficient co-catalysts for realizing sustainable solar energy-driven energy conversion and storage.
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Affiliation(s)
- Yajun Pang
- School of Materials Science and Engineering, and Key Laboratory of Advanced Functional Materials and Devices of Anhui Province, Hefei University of Technology, Hefei 230009, China. and Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Singapore.
| | - Wenjie Zang
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Singapore.
| | - Zongkui Kou
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Singapore.
| | - Lei Zhang
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Singapore.
| | - Guangqing Xu
- School of Materials Science and Engineering, and Key Laboratory of Advanced Functional Materials and Devices of Anhui Province, Hefei University of Technology, Hefei 230009, China. and China International S&T Cooperation Base for Advanced Energy and Environmental Materials, Hefei 230009, China
| | - Jun Lv
- School of Materials Science and Engineering, and Key Laboratory of Advanced Functional Materials and Devices of Anhui Province, Hefei University of Technology, Hefei 230009, China. and China International S&T Cooperation Base for Advanced Energy and Environmental Materials, Hefei 230009, China
| | - Xiaorui Gao
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Singapore.
| | - Zhenghui Pan
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Singapore.
| | - John Wang
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Singapore.
| | - Yucheng Wu
- School of Materials Science and Engineering, and Key Laboratory of Advanced Functional Materials and Devices of Anhui Province, Hefei University of Technology, Hefei 230009, China. and China International S&T Cooperation Base for Advanced Energy and Environmental Materials, Hefei 230009, China
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Ga-Doped AgInS2 Modified with Co–Pi Co–catalyst for Efficient Photoelectrochemical Water Splitting. Catal Letters 2019. [DOI: 10.1007/s10562-019-03021-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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