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Ma Z, Yin Y, Jiang Y, Luo W, Xu J, Chen Y, Bao Z, Guo C, Lv J. Fast annealing fabrication of porous CuWO 4photoanode for charge transport in photoelectrochemical water oxidation. NANOTECHNOLOGY 2024; 35:385401. [PMID: 38917778 DOI: 10.1088/1361-6528/ad5b67] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Accepted: 06/25/2024] [Indexed: 06/27/2024]
Abstract
Ternary-phase CuWO4oxide with an electronic band gap of 2.2-2.4 eV is a potential candidate photoanode material for photoelectrochemical (PEC) water splitting. Herein, we present an efficient method to prepare CuWO4film photoanode by combining hydrothermal method and hybrid microwave annealing (HMA) process. In comparison with conventional thermal annealing (CTA), HMA can achieve CuWO4thin film within minutes by using SiC susceptor. When the CuWO4photoanode is prepared by HMA, its PEC water oxidation performance improves from 0.21 to 0.29 mA cm-2at 1.23 VRHEcomparing with the one prepared by CTA. The origin of the enhanced photocurrent was investigated by means of complementary physical characterizations and PEC methods. The results demonstrated that the obtained HMA processed CuWO4photoanode not only exhibited intrinsic porous nanostructures but also abundant surface hydroxyl groups, which facilitated sufficient mass transport and the charge transfer. Our results highlight the application of HMA for the fast fabrication of porous film photo-electrodes without using sacrificial template.
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Affiliation(s)
- Zili Ma
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Yanjun Yin
- School of Chemistry and Material Engineering, Chaohu University, Chaohu 238024, People's Republic of China
| | - Ye Jiang
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Weihao Luo
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Jinyu Xu
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Yan Chen
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Zhiyong Bao
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
| | - Chaozhong Guo
- College of Materials Science and Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, People's Republic of China
| | - Jun Lv
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, People's Republic of China
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Li Q, Fang G, Wu Z, Guo J, You Y, Jin H, Wan J. Advanced Microwave Strategies Facilitate Structural Engineering for Efficient Electrocatalysis. CHEMSUSCHEM 2024; 17:e202301874. [PMID: 38323505 DOI: 10.1002/cssc.202301874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/06/2024] [Accepted: 02/06/2024] [Indexed: 02/08/2024]
Abstract
In the dynamic realm of energy conversion, the demand for efficient electrocatalysis has surged due to the urgent need to seamlessly integrate renewable energy. Traditional electrocatalyst preparation faces challenges like poor controllability, elevated costs, and stringent operational conditions. The introduction of microwave strategies represents a transformative shift, offering rapid response, high-temperature energy, and superior controllability. Notably, non-liquid-phase advanced microwave technology holds promise for introducing novel models and discoveries compared to traditional liquid-phase microwave methods. This review examines the nuanced applications of microwave technology in electrocatalyst structural engineering, emphasizing its pivotal role in the energy paradigm and addressing challenges in conventional methods. The ensuing discussion explores the profound impact of advanced microwave strategies on electrocatalyst structural engineering, highlighting discernible advantages in optimizing performance. Various applications of advanced microwave techniques in electrocatalysis are comprehensively discussed, providing a forward-looking perspective on their untapped potential to propel transformative strides in renewable energy research. It provides a forward-looking perspective, delving into the untapped potential of microwaves to propel transformative strides in renewable energy research.
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Affiliation(s)
- Qingxiang Li
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing, Wuhan Textile University, Wuhan, 430200, Hubei, China
| | - Guangyu Fang
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing, Wuhan Textile University, Wuhan, 430200, Hubei, China
| | - Zhiao Wu
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing, Wuhan Textile University, Wuhan, 430200, Hubei, China
| | - Jiayue Guo
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing, Wuhan Textile University, Wuhan, 430200, Hubei, China
| | - Yongfei You
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing, Wuhan Textile University, Wuhan, 430200, Hubei, China
| | - Huanyu Jin
- Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- Institute for Sustainability, Energy, and Resources, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Jun Wan
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing, Wuhan Textile University, Wuhan, 430200, Hubei, China
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Fu H, Bai Y, Lian Y, Hu Y, Zhao J, Zhang H. Oxygen-Deficient FeNbO 4-x In-Situ Growth in Honey-Derived N-Doping Porous Carbon for Overall Water Splitting. CHEMSUSCHEM 2024; 17:e202400162. [PMID: 38556462 DOI: 10.1002/cssc.202400162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/12/2024] [Accepted: 03/29/2024] [Indexed: 04/02/2024]
Abstract
It is still a great challenge to reasonably design green, low cost, high activity and good stability catalysts for overall water splitting (OWS). Here, we introduce a novel catalyst with ferric niobate (FeNbO4) in-situ growing in honey-derived porous carbon of high specific surface area, and its catalytic activity is further enhanced by micro-regulation (oxygen vacancy and N-doping). From the experimental results and density functional theory (DFT) calculations, the oxygen vacancy in catalyst FeNbO4-x@NC regulates the local charge density of active site, thus increasing conductivity and optimizing hydrogen/oxygen species adsorption energy. FeNbO4 in-situ grows within N-doping honey-derived porous carbon, which can enhance active specific surface area exposure, strengthen gaseous substances escape rate, and accelerate electrons/ions transfer and electrolytes diffusion. Moreover, in-situ Raman also confirms O-species generation in oxygen evolution reaction (OER). As a result, the catalyst FeNbO4-x@NC shows good electrochemical performance in OER, HER and OWS.
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Affiliation(s)
- Hongliang Fu
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, PR China
| | - Yongqing Bai
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, PR China
| | - Yue Lian
- School of Chemistry & Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224051, P. R. China
| | - Yongfeng Hu
- Department of Chemical Engineering, University of Saskatchewan, Saskatoon, S7N 2V3, Canada
| | - Jing Zhao
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, PR China
| | - Huaihao Zhang
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, PR China
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Lin S, Habib MA, Joni MH, Dristy SA, Mandavkar R, Jeong JH, Chung YU, Lee J. CoFeBP Micro Flowers (MFs) for Highly Efficient Hydrogen Evolution Reaction and Oxygen Evolution Reaction Electrocatalysts. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:698. [PMID: 38668192 PMCID: PMC11053626 DOI: 10.3390/nano14080698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 04/11/2024] [Accepted: 04/15/2024] [Indexed: 04/29/2024]
Abstract
Hydrogen is one of the most promising green energy alternatives due to its high gravimetric energy density, zero-carbon emissions, and other advantages. In this work, a CoFeBP micro-flower (MF) electrocatalyst is fabricated as an advanced water-splitting electrocatalyst by a hydrothermal approach for hydrogen production with the highly efficient hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The fabrication process of the CoFeBP MF electrocatalyst is systematically optimized by thorough investigations on various hydrothermal synthesis and post-annealing parameters. The best optimized CoFeBP MF electrode demonstrates HER/OER overpotentials of 20 mV and 219 mV at 20 mA/cm2. The CoFeBP MFs also exhibit a low 2-electrode (2-E) cell voltage of 1.60 V at 50 mA/cm2, which is comparable to the benchmark electrodes of Pt/C and RuO2. The CoFeBP MFs demonstrate excellent 2-E stability of over 100 h operation under harsh industrial operational conditions at 60 °C in 6 M KOH at a high current density of 1000 mA/cm2. The flower-like morphology can offer a largely increased electrochemical active surface area (ECSA), and systematic post-annealing can lead to improved crystallinity in CoFeBP MFs.
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Affiliation(s)
| | | | | | | | | | - Jae-Hun Jeong
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul 01897, Republic of Korea; (S.L.); (M.A.H.); (M.H.J.); (S.A.D.); (R.M.)
| | - Young-Uk Chung
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul 01897, Republic of Korea; (S.L.); (M.A.H.); (M.H.J.); (S.A.D.); (R.M.)
| | - Jihoon Lee
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul 01897, Republic of Korea; (S.L.); (M.A.H.); (M.H.J.); (S.A.D.); (R.M.)
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Liu D, Kuang Y. Particle-Based Photoelectrodes for PEC Water Splitting: Concepts and Perspectives. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2311692. [PMID: 38619834 DOI: 10.1002/adma.202311692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 04/06/2024] [Indexed: 04/16/2024]
Abstract
This comprehensive review delves into the intricacies of the photoelectrochemical (PEC) water splitting process, specifically focusing on the design, fabrication, and optimization of particle-based photoelectrodes for efficient green hydrogen production. These photoelectrodes, composed of semiconductor materials, potentially harness light energy and generate charge carriers, driving water oxidation and reduction reactions. The versatility of particle-based photoelectrodes as a platform for investigating and enhancing various semiconductor candidates is explored, particularly the emerging complex oxides with compelling charge transfer properties. However, the challenges presented by many factors influencing the performance and stability of these photoelectrodes, including particle size, shape, composition, morphology, surface modification, and electrode configuration, are highlighted. The review introduces the fundamental principles of semiconductor photoelectrodes for PEC water splitting, presents an exhaustive overview of different synthesis methods for semiconductor powders and their assembly into photoelectrodes, and discusses recent advances and challenges in photoelectrode material development. It concludes by offering promising strategies for improving photoelectrode performance and stability, such as the adoption of novel architectures and heterojunctions.
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Affiliation(s)
- Deyu Liu
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, 315201, China
| | - Yongbo Kuang
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, 315201, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19(A)Yuquan Road, Beijing, 100049, China
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Kogularasu S, Lee YY, Sriram B, Wang SF, George M, Chang-Chien GP, Sheu JK. Unlocking Catalytic Potential: Exploring the Impact of Thermal Treatment on Enhanced Electrocatalysis of Nanomaterials. Angew Chem Int Ed Engl 2024; 63:e202311806. [PMID: 37773568 DOI: 10.1002/anie.202311806] [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: 08/14/2023] [Revised: 09/27/2023] [Accepted: 09/29/2023] [Indexed: 10/01/2023]
Abstract
In the evolving field of electrocatalysis, thermal treatment of nano-electrocatalysts has become an essential strategy for performance enhancement. This review systematically investigates the impact of various thermal treatments on the catalytic potential of nano-electrocatalysts. The focus encompasses an in-depth analysis of the changes induced in structural, morphological, and compositional properties, as well as alterations in electro-active surface area, surface chemistry, and crystal defects. By providing a comprehensive comparison of commonly used thermal techniques, such as annealing, calcination, sintering, pyrolysis, hydrothermal, and solvothermal methods, this review serves as a scientific guide for selecting the right thermal technique and favorable temperature to tailor the nano-electrocatalysts for optimal electrocatalysis. The resultant modifications in catalytic activity are explored across key electrochemical reactions such as electrochemical (bio)sensing, catalytic degradation, oxygen reduction reaction, hydrogen evolution reaction, overall water splitting, fuel cells, and carbon dioxide reduction reaction. Through a detailed examination of the underlying mechanisms and synergistic effects, this review contributes to a fundamental understanding of the role of thermal treatments in enhancing electrocatalytic properties. The insights provided offer a roadmap for future research aimed at optimizing the electrocatalytic performance of nanomaterials, fostering the development of next-generation sensors and energy conversion technologies.
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Affiliation(s)
- Sakthivel Kogularasu
- Super Micro Mass Research and Technology Center, Center for Environmental Toxin and Emerging-Contaminant Research, Institute of Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University, Kaohsiung, 833301, Taiwan
| | - Yen-Yi Lee
- Super Micro Mass Research and Technology Center, Center for Environmental Toxin and Emerging-Contaminant Research, Institute of Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University, Kaohsiung, 833301, Taiwan
| | - Balasubramanian Sriram
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei, 106, Taiwan
| | - Sea-Fue Wang
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei, 106, Taiwan
| | - Mary George
- Department of Chemistry, Stella Maris College, Affiliated to the University of Madras, Chennai 600086, Tamil Nadu, India
| | - Guo-Ping Chang-Chien
- Super Micro Mass Research and Technology Center, Center for Environmental Toxin and Emerging-Contaminant Research, Institute of Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University, Kaohsiung, 833301, Taiwan
| | - Jinn-Kong Sheu
- Department of Photonics, National Cheng Kung University, Tainan, 701, Taiwan)
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7
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Zhang H, Ahn CW, Park JY, Ok JW, Sung JY, Jin JS, Kim HG, Lee JS. Healing Ion-Implanted Semiconductors by Hybrid Microwave Annealing: Activation of Nitrogen-Implanted TiO 2. J Phys Chem Lett 2022; 13:3878-3885. [PMID: 35470660 DOI: 10.1021/acs.jpclett.2c00220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In order to recover the damaged structure of a nitrogen-implanted TiO2 (N-I-TiO2) photoanode, hybrid microwave annealing (HMA) is proposed as an alternative postannealing process instead of conventional thermal annealing (CTA). Compared to CTA, HMA provides distinctive advantages: (i) facile transformation of the interstitial N-N states into substitutional N-Ti states, (ii) better preservation of the ion-implanted nitrogen in TiO2, and (iii) effective alleviation of lattice strain and reconstruction of the broken bonds. As a result, the HMA-activated photoanode improves the photocurrent density by a factor of ∼3.2 from 0.29 to 0.93 mA cm-2 at 1.23 VRHE and the incident photon-to-current conversion efficiency (IPCE) from ∼2.9% to ∼10.5% at 430 nm relative to those of the as-prepared N-I-TiO2 photoanode in photoelectrochemical water oxidation, which are much better than those of the CTA-activated photoanode (0.58 mA cm-2 at 1.23 VRHE and IPCE of 5.7% at 430 nm), especially in the visible light region (≥420 nm).
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Affiliation(s)
- Hemin Zhang
- College of Materials Science and Engineering, Sichuan University, Engineering Research Center of Alternative Energy Materials and Devices, Ministry of Education, Chengdu 610065, China
| | - Chang Won Ahn
- Department of Physics, University of Ulsan, Ulsan, 680-749, Republic of Korea
| | - Jin Yong Park
- Busan Center, Korea Basic Science Institute, Busan, 609-735, Republic of Korea
| | - Jung-Woo Ok
- Busan Center, Korea Basic Science Institute, Busan, 609-735, Republic of Korea
| | - Ji Yeong Sung
- Busan Center, Korea Basic Science Institute, Busan, 609-735, Republic of Korea
| | - Jong Sung Jin
- Busan Center, Korea Basic Science Institute, Busan, 609-735, Republic of Korea
| | - Hyun Gyu Kim
- Busan Center, Korea Basic Science Institute, Busan, 609-735, Republic of Korea
| | - Jae Sung Lee
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Ulsan 44919, Republic of Korea
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Peng P, Wang P, Cai Z, Zhang J, Hu Y, Xu J, Wang X. Worm-like porous and defect-structured cadmium stannate photoanodes for enhanced solar water oxidation. NANOSCALE ADVANCES 2022; 4:1227-1234. [PMID: 36131768 PMCID: PMC9417591 DOI: 10.1039/d1na00828e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 01/12/2022] [Indexed: 06/15/2023]
Abstract
The work aims to elucidate the importance of hybrid microwave annealing technology (HMA) in ultrafast fabrication of deficient cadmium stannate (Cd2SnO4) photoanodes with a worm-like porous structure and significant enhancement of solar water oxidation performance and stability. Comparison of three synthetic routes and experimental characterization revealed that relative to conventional thermal annealing (CTA) or even with extra HMA for 5 min (optimal), direct HMA for only 8 min can form cubic Cd2SnO4 thin films of unique worm-like and highly porous nanostrucures with a large interfacial surface area, high degree of phase crystallinity and high-concentration defects. The obtained results from the photoluminescence spectra and the charge efficiency measurements collaboratively verified that compared to using CTA treatment solely, the HMA treatment is effective in significantly improving charge separation, recombination and transfer processes, mainly by an over 13.5-fold increase in the bulk charge separation efficiency. Benefiting from these merits, under optimized conditions the HMA treated Cd2SnO4 film exhibited a remarkable 6-fold and 2-fold solar photocurrent enhancement compared with those of the CTA treated one and the combined CTA-HMA treated one, respectively, and an IPCE of 39% at 300 nm and 18% at 350 nm at 1.7 V versus RHE. Despite a high external bias required in this case, the study provides a simple route for synthesis of ideal Cd2SnO4 photoanodes which can be further extended to doping engineering and non-noble metal cocatalyst deposition.
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Affiliation(s)
- Pan Peng
- School of Materials Science and Technology, University of Shanghai for Science and Technology Jungong Rd. 516 200093 Shanghai P. R. China
- Shanghai Institute of Ceramics, Chinese Academy of Sciences Heshuo Rd. 585 201899 Shanghai P. R. China
| | - Ping Wang
- School of Materials Science and Technology, University of Shanghai for Science and Technology Jungong Rd. 516 200093 Shanghai P. R. China
- Shanghai Institute of Ceramics, Chinese Academy of Sciences Heshuo Rd. 585 201899 Shanghai P. R. China
| | - Zhengyang Cai
- School of Materials Science and Technology, University of Shanghai for Science and Technology Jungong Rd. 516 200093 Shanghai P. R. China
- Shanghai Institute of Ceramics, Chinese Academy of Sciences Heshuo Rd. 585 201899 Shanghai P. R. China
| | - Jiajia Zhang
- Shanghai Institute of Ceramics, Chinese Academy of Sciences Heshuo Rd. 585 201899 Shanghai P. R. China
| | - Yu Hu
- School of Materials Science and Technology, University of Shanghai for Science and Technology Jungong Rd. 516 200093 Shanghai P. R. China
| | - Jingcheng Xu
- School of Materials Science and Technology, University of Shanghai for Science and Technology Jungong Rd. 516 200093 Shanghai P. R. China
| | - Xianying Wang
- Shanghai Institute of Ceramics, Chinese Academy of Sciences Heshuo Rd. 585 201899 Shanghai P. R. China
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Zhao E, Du K, Yin P, Ran J, Mao J, Ling T, Qiao S. Advancing Photoelectrochemical Energy Conversion through Atomic Design of Catalysts. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2104363. [PMID: 34850603 PMCID: PMC8728826 DOI: 10.1002/advs.202104363] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/31/2021] [Indexed: 05/08/2023]
Abstract
Powered by inexhaustible solar energy, photoelectrochemical (PEC) hydrogen/ammonia production and reduction of carbon dioxide to high added-value chemicals in eco-friendly and mild conditions provide a highly attractive solution to carbon neutrality. Recently, substantial advances have been achieved in PEC systems by improving light absorption and charge separation/transfer in PEC devices. However, less attention is given to the atomic design of photoelectrocatalysts to facilitate the final catalytic reactions occurring at photoelectrode surface, which largely limits the overall photo-to-energy conversion of PEC system. Fundamental catalytic mechanisms and recent progress in atomic design of PEC materials are comprehensively reviewed by engineering of defect, dopant, facet, strain, and single atom to enhance the activity and selectivity. Finally, the emerging challenges and research directions in design of PEC systems for future photo-to-energy conversions are proposed.
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Affiliation(s)
- Erling Zhao
- Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of EducationTianjin Key Laboratory of Composite and Functional MaterialsSchool of Materials Science and EngineeringTianjin UniversityTianjin300072China
| | - Kun Du
- Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of EducationTianjin Key Laboratory of Composite and Functional MaterialsSchool of Materials Science and EngineeringTianjin UniversityTianjin300072China
| | - Peng‐Fei Yin
- Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of EducationTianjin Key Laboratory of Composite and Functional MaterialsSchool of Materials Science and EngineeringTianjin UniversityTianjin300072China
| | - Jingrun Ran
- School of Chemical Engineering and Advanced MaterialsThe University of AdelaideAdelaideSA5005Australia
| | - Jing Mao
- Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of EducationTianjin Key Laboratory of Composite and Functional MaterialsSchool of Materials Science and EngineeringTianjin UniversityTianjin300072China
| | - Tao Ling
- Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of EducationTianjin Key Laboratory of Composite and Functional MaterialsSchool of Materials Science and EngineeringTianjin UniversityTianjin300072China
| | - Shi‐Zhang Qiao
- School of Chemical Engineering and Advanced MaterialsThe University of AdelaideAdelaideSA5005Australia
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Liu M, Wen Y, Lu L, Kang Q, Xie Z, Chen Y, Tian X, Jin H, Liu J. A Cost‐Effective Iron Based Covalent Organic Framework and Its Composite Electrocatalyst for Active and Stable Oxygen Reduction Reaction in Alkaline Solution. ChemElectroChem 2021. [DOI: 10.1002/celc.202100627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Muye Liu
- Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 388 Lumo Road Wuhan 430074 P.R.China
| | - Yue Wen
- Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 388 Lumo Road Wuhan 430074 P.R.China
| | - Luhua Lu
- Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 388 Lumo Road Wuhan 430074 P.R.China
- Zhejiang institute China University of Geosciences Wuhan Hangzhou 6 Heting Street 311305 P. R. China
| | - Qi Kang
- Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 388 Lumo Road Wuhan 430074 P.R.China
| | - Zhicheng Xie
- Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 388 Lumo Road Wuhan 430074 P.R.China
| | - Ying Chen
- Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 388 Lumo Road Wuhan 430074 P.R.China
| | - Xiaocong Tian
- Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 388 Lumo Road Wuhan 430074 P.R.China
| | - Hongyun Jin
- Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 388 Lumo Road Wuhan 430074 P.R.China
| | - Jinghai Liu
- Inner Mongolia Key Laboratory of Carbon Nanomaterials College of Chemistry and Chemical Engineering Inner Mongolia University for Nationalities Tongliao 536 Huolinhe Street West 028000 P. R. China
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Kim EH, Choi YH, Lee MH, Kim J, Kim HB, Kim KY, Ra EC, Lee JH, Lee JS. Base-free CO2 hydrogenation to formic acid over Pd supported on defective carbon nitride modified by microwave and acid treatments. J Catal 2021. [DOI: 10.1016/j.jcat.2021.03.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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You B, Qiao SZ. Destabilizing Alkaline Water with 3d-Metal (Oxy)(Hydr)Oxides for Improved Hydrogen Evolution. Chemistry 2021; 27:553-564. [PMID: 32767471 DOI: 10.1002/chem.202002503] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/20/2020] [Indexed: 11/07/2022]
Abstract
Alkaline water electrolysis enables the use of nonprecious metal-based catalysts and therefore holds great promise for large-scale generation of renewable hydrogen fuel, especially when driven by renewable energy sources such as solar and wind. However, the sluggish kinetics of the water adsorption and dissociation steps in the alkaline hydrogen evolution reaction (HER) lower its energy conversion efficiency. Recent achievements have proved that 3d-metal (oxy)(hydr)oxides can accelerate these two kinetic processes and thereby improve the activity of diverse HER electrocatalysts from experimental and theoretical points of view. Moreover, a positive role of strong coupling between HER catalysts and 3d-metal (oxy)(hydr)oxides has been discovered recently. In this minireview, a compendious introduction to recent progress is provided, including experiments and theory. Remarks on the challenges and perspectives in this rapidly developing field are also provided.
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Affiliation(s)
- Bo You
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Shi Zhang Qiao
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA, 5005, Australia
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13
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Zhang H, Li D, Byun WJ, Wang X, Shin TJ, Jeong HY, Han H, Li C, Lee JS. Gradient tantalum-doped hematite homojunction photoanode improves both photocurrents and turn-on voltage for solar water splitting. Nat Commun 2020; 11:4622. [PMID: 32934221 PMCID: PMC7493915 DOI: 10.1038/s41467-020-18484-8] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 08/20/2020] [Indexed: 01/17/2023] Open
Abstract
Hematite has a great potential as a photoanode for photoelectrochemical (PEC) water splitting by converting solar energy into hydrogen fuels, but the solar-to-hydrogen conversion efficiency of state-of-the-art hematite photoelectrodes are still far below the values required for practical hydrogen production. Here, we report a core-shell formation of gradient tantalum-doped hematite homojunction nanorods by combination of hydrothermal regrowth strategy and hybrid microwave annealing, which enhances the photocurrent density and reduces the turn-on voltage simultaneously. The unusual bi-functional effects originate from the passivation of the surface states and intrinsic built-in electric field by the homojunction formation. The additional driving force provided by the field can effectively suppress charge–carrier recombination both in the bulk and on the surface of hematite, especially at lower potentials. Moreover, the synthesized homojunction shows a remarkable synergy with NiFe(OH)x cocatalyst with significant additional improvements of photocurrent density and cathodic shift of turn-on voltage. The work has nicely demonstrated multiple collaborative strategies of gradient doping, homojunction formation, and cocatalyst modification, and the concept could shed light on designing and constructing the efficient nanostructures of semiconductor photoelectrodes in the field of solar energy conversion. Solar-to-fuel conversion represents a renewable means to harvest sunlight, but the most efficient materials are often expensive or rare. Here, authors demonstrate gradient tantalum-doped hematite homojunctions as a method to improve photoelectrochemical water splitting performances.
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Affiliation(s)
- Hemin Zhang
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Dongfeng Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Zhongshan Road 457, 116023, Dalian, China
| | - Woo Jin Byun
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Xiuli Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Zhongshan Road 457, 116023, Dalian, China.
| | - Tae Joo Shin
- UNIST Central Research Facilities, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan, 44919, Republic of Korea
| | - Hu Young Jeong
- UNIST Central Research Facilities, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan, 44919, Republic of Korea.
| | - Hongxian Han
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Zhongshan Road 457, 116023, Dalian, China
| | - Can Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Zhongshan Road 457, 116023, Dalian, China
| | - Jae Sung Lee
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea.
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14
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Xiao S, Zhou C, Ye X, Lian Z, Zhang N, Yang J, Chen W, Li H. Solid-Phase Microwave Reduction of WO 3 by GO for Enhanced Synergistic Photo-Fenton Catalytic Degradation of Bisphenol A. ACS APPLIED MATERIALS & INTERFACES 2020; 12:32604-32614. [PMID: 32594735 DOI: 10.1021/acsami.0c06373] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The synergistic photocatalytic Fenton reaction is a powerful advanced oxidation technique for the degradation of persistent organic pollutants. However, microwave-induced thermal effects on the formation of novel structures facilitating the photocatalytic degradation have been rarely reported. Herein, a two-step microwave thermal strategy was developed to synthesize a new hybrid catalyst comprising defective WO3-x nanowires coupled with reduced graphene oxides (rGOs). Conventionally, microwave methods could induce superhot spots on the GO surface, resulting in the site-specific crystallization and oriented growth of WO3. However, in the solid phase, localized microwave thermal effects could reduce the interfacial area between WO3 and rGO and enhance the bonding between them. As for the unique structure and surface properties, the synthesized catalyst enhanced the light absorption, promoted the interfacial charge separation, and increased the carrier density in the photocatalytic processes. In addition, surface formation of W4+ provided a new pathway for Fe3+/Fe2+ cycling which linked the photocatalytic reaction and the Fenton process. The optimized catalyst exhibited a remarkable performance in the degradation of bisphenol A with a ∼83% removal yield via a photo-Fenton route. These microwave-induced functionalities of materials for synergistic reactions could also give a new avenue to other photoelectrocatalytic fields and solar cells.
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Affiliation(s)
- Shuning Xiao
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Chen Zhou
- Key Laboratory of Resource Chemistry of Ministry of Education, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China
| | - Xingyu Ye
- Key Laboratory of Resource Chemistry of Ministry of Education, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China
| | - Zichao Lian
- College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Ningyu Zhang
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Junhe Yang
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Wei Chen
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
| | - Hexing Li
- Key Laboratory of Resource Chemistry of Ministry of Education, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China
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15
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Lee D, Baltazar VU, Smart TJ, Ping Y, Choi KS. Electrochemical Oxidation of Metal-Catechol Complexes as a New Synthesis Route to the High-Quality Ternary Photoelectrodes: A Case Study of Fe 2TiO 5 Photoanodes. ACS APPLIED MATERIALS & INTERFACES 2020; 12:29275-29284. [PMID: 32551469 DOI: 10.1021/acsami.0c05359] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A new electrochemical, solution-based synthesis method to prepare uniform multinary oxide photoelectrodes was developed. This method involves solubilizing multiple metal ions as metal-catechol complexes in a pH condition where they are otherwise insoluble. When some of the catechol ligands are electrochemically oxidized, the remaining metal complexes become insoluble and are deposited as metal-catechol films on the working electrode. The resulting films are then annealed to form crystalline multinary oxide electrodes. Because catechol can serve as a complexing agent for a variety of metal ions, the newly developed method can be used to prepare a variety of multinary oxide films. In the present study, we used this method to prepare n-type Fe2TiO5 photoanodes and investigated their photoelectrochemical properties for use in a photoelectrochemical water-splitting cell. We also performed a computational investigation with two goals. The first goal was to investigate small electron polaron formation in Fe2TiO5. Charge transport in most oxide photoelectrodes involves small polaron hopping, but small polaron formation in Fe2TiO5 has not been examined prior to this work. The second goal was to investigate the effect of substitutional Sn doping at the Fe site on the electronic band structure and the carrier concentration of Fe2TiO5. The combined experimental and theoretical results presented in this study greatly improve our understanding of Fe2TiO5 for use as a photoanode.
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Affiliation(s)
- Dongho Lee
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Valentin Urena Baltazar
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, United States
| | - Tyler J Smart
- Department of Physics, University of California, Santa Cruz, California 95064, United States
| | - Yuan Ping
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, United States
| | - Kyoung-Shin Choi
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
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