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Xiang F, Li N, Burguete-Lopez A, He Z, Elizarov M, Fratalocchi A. Light-Induced Quantum Reconfiguration of Oxyhydroxides for Photoanodes with 4.24% Efficiency and Stability Beyond 250 Hours. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2405478. [PMID: 39097948 DOI: 10.1002/adma.202405478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 06/24/2024] [Indexed: 08/06/2024]
Abstract
Photoelectrochemical (PEC) water splitting is attracting significant research interest in addressing sustainable development goals in renewable energy. Current state-of-the-art, however, cannot provide photoanodes with simultaneously high efficiency and long-lasting lifetime. Here, large-scale NiFe oxyhydroxides-alloy hybridized co-catalyst layer that exhibits an applied bias photon-to-current efficiency (ABPE) of 4.24% in buried homojunction-free photoanodes and stability over 250 h is reported. These performances represent an increase over the present highest-performing technology by 408% in stability and the most stable competitor by over 330% in efficiency. These results originate from a previously unexplored mechanism of light-induced atomic reconfiguration, which rapidly self-generates a catalytic-protective amorphous/crystalline heterostructure at low biases. This mechanism provides active sites for reaction and insulates the photoanode from performance degradation. Photon-generated NiFe oxyhydroxides are more than 200% higher than the quantity that pure electrocatalysis would otherwise induce, overcoming the threshold for an efficient water oxidation reaction in the device. While of immediate interest in the industry of water splitting, the light-induced NiFe oxyhydroxides-alloy co-catalyst developed in this work provides a general strategy to enhance further the performances and stability of PEC devices for a vast panorama of chemical reactions, ranging from biomass valorization to organic waste degradation, and CO2-to-fuel conversion.
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Affiliation(s)
- Fei Xiang
- PRIMALIGHT, Faculty of Electrical and Computer Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Ning Li
- PRIMALIGHT, Faculty of Electrical and Computer Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Arturo Burguete-Lopez
- PRIMALIGHT, Faculty of Electrical and Computer Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Zhao He
- PRIMALIGHT, Faculty of Electrical and Computer Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Maxim Elizarov
- PRIMALIGHT, Faculty of Electrical and Computer Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Andrea Fratalocchi
- PRIMALIGHT, Faculty of Electrical and Computer Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
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Zabara MA, Ölmez B, Buldu‐Akturk M, Yarar Kaplan B, Kırlıoğlu AC, Alkan Gürsel S, Ozkan M, Ozkan CS, Yürüm A. Photoelectrocatalytic Hydrogen Generation: Current Advances in Materials and Operando Characterization. GLOBAL CHALLENGES (HOBOKEN, NJ) 2024; 8:2400011. [PMID: 39130676 PMCID: PMC11316250 DOI: 10.1002/gch2.202400011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 06/10/2024] [Indexed: 08/13/2024]
Abstract
Photoelectrochemical (PEC) hydrogen generation is a promising technology for green hydrogen production yet faces difficulties in achieving stability and efficiency. The scientific community is pushing toward the development of new electrode materials and a better understanding of the underlying reactions and degradation mechanisms. Advances in photocatalytic materials are being pursued through the development of heterojunctions, tailored crystal nanostructures, doping, and modification of solid-solid and solid-electrolyte interfaces. Operando and in situ techniques are utilized to deconvolute the charge transfer mechanisms and degradation pathways. In this review, both materials development and Operando characterization are covered for advancing PEC technologies. The recent advances made in the PEC materials are first reviewed including the applied improvement strategies for transition metal oxides, nitrites, chalcogenides, Si, and group III-V semiconductor materials. The efficiency, stability, scalability, and electrical conductivity of the aforementioned materials along with the improvement strategies are compared. Next, the Operando characterization methods and cite selected studies applied for PEC electrodes are described. Operando studies are very successful in elucidating the reaction mechanisms, degradation pathways, and charge transfer phenomena in PEC electrodes. Finally, the standing challenges and the potential opportunities are discussed by providing recommendations for designing more efficient and electrochemically stable PEC electrodes.
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Affiliation(s)
| | - Burak Ölmez
- Faculty of Engineering and Natural SciencesSabanci UniversityIstanbul34956Türkiye
| | - Merve Buldu‐Akturk
- Faculty of Engineering and Natural SciencesSabanci UniversityIstanbul34956Türkiye
| | - Begüm Yarar Kaplan
- Sabanci University SUNUM Nanotechnology Research CenterIstanbul34956Türkiye
| | - Ahmet Can Kırlıoğlu
- Faculty of Engineering and Natural SciencesSabanci UniversityIstanbul34956Türkiye
| | - Selmiye Alkan Gürsel
- Sabanci University SUNUM Nanotechnology Research CenterIstanbul34956Türkiye
- Faculty of Engineering and Natural SciencesSabanci UniversityIstanbul34956Türkiye
| | - Mihrimah Ozkan
- Department of Electrical and Computer EngineeringUniversity of CaliforniaRiversideCA02521USA
| | - Cengiz Sinan Ozkan
- Department of Mechanical EngineeringUniversity of CaliforniaRiversideCA02521USA
| | - Alp Yürüm
- Sabanci University SUNUM Nanotechnology Research CenterIstanbul34956Türkiye
- Faculty of Engineering and Natural SciencesSabanci UniversityIstanbul34956Türkiye
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3
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Feng C, Liu Z, Ju H, Mavrič A, Valant M, Fu J, Zhang B, Li Y. Understanding the in-situ transformation of Cu xO interlayers to increase the water splitting efficiency in NiO/n-Si photoanodes. Nat Commun 2024; 15:6436. [PMID: 39085223 PMCID: PMC11291650 DOI: 10.1038/s41467-024-50893-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 07/24/2024] [Indexed: 08/02/2024] Open
Abstract
The buried interface tens of nanometers beneath the solid-liquid junction is crucial for photocarrier extraction, influencing the overall efficiency of photoelectrochemical devices. Precise characterization of the interfacial properties is essential for device optimization but remains challenging. Here, we directly probe the in situ transformation of a CuxO interlayer at the NiO/n-Si interface by hard X-ray photoelectron spectroscopy. It is found that Cu(I) in the CuxO interlayer gradually transforms to Cu(II) with air exposure, forming an energetically more favorable interface and improving photoanode's efficiency. Based on this finding, a reactive e-beam evaporation process is developed for the direct deposition of a CuO interlayer, achieving a half-cell solar-to-hydrogen efficiency of 4.56% for the optimized NiO/CuO/n-Si heterojunction photoanode. Our results highlight the importance of precision characterization of interfacial properties with advanced hard X-ray photoelectron spectroscopy in guiding the design of efficient solar water-splitting devices.
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Affiliation(s)
- Chao Feng
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China
- Key Laboratory of Quantum Physics and Photonic Quantum Information, Ministry of Education, University of Electronic Science and Technology of China, Chengdu, China
| | - Zhi Liu
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China
| | - Huanxin Ju
- PHI China Analytical Laboratory, Core Tech Integrated Limited, Nanjing, China
| | - Andraž Mavrič
- Materials Research Laboratory, University of Nova Gorica, Nova Gorica, Slovenia
| | - Matjaz Valant
- Materials Research Laboratory, University of Nova Gorica, Nova Gorica, Slovenia
| | - Jie Fu
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China
| | - Beibei Zhang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China
- Key Laboratory of Quantum Physics and Photonic Quantum Information, Ministry of Education, University of Electronic Science and Technology of China, Chengdu, China
| | - Yanbo Li
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China.
- Key Laboratory of Quantum Physics and Photonic Quantum Information, Ministry of Education, University of Electronic Science and Technology of China, Chengdu, China.
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Wei S, Xia X, Bi S, Hu S, Wu X, Hsu HY, Zou X, Huang K, Zhang DW, Sun Q, Bard AJ, Yu ET, Ji L. Metal-insulator-semiconductor photoelectrodes for enhanced photoelectrochemical water splitting. Chem Soc Rev 2024; 53:6860-6916. [PMID: 38833171 DOI: 10.1039/d3cs00820g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
Photoelectrochemical (PEC) water splitting provides a scalable and integrated platform to harness renewable solar energy for green hydrogen production. The practical implementation of PEC systems hinges on addressing three critical challenges: enhancing energy conversion efficiency, ensuring long-term stability, and achieving economic viability. Metal-insulator-semiconductor (MIS) heterojunction photoelectrodes have gained significant attention over the last decade for their ability to efficiently segregate photogenerated carriers and mitigate corrosion-induced semiconductor degradation. This review discusses the structural composition and interfacial intricacies of MIS photoelectrodes tailored for PEC water splitting. The application of MIS heterostructures across various semiconductor light-absorbing layers, including traditional photovoltaic-grade semiconductors, metal oxides, and emerging materials, is presented first. Subsequently, this review elucidates the reaction mechanisms and respective merits of vacuum and non-vacuum deposition techniques in the fabrication of the insulator layers. In the context of the metal layers, this review extends beyond the conventional scope, not only by introducing metal-based cocatalysts, but also by exploring the latest advancements in molecular and single-atom catalysts integrated within MIS photoelectrodes. Furthermore, a systematic summary of carrier transfer mechanisms and interface design principles of MIS photoelectrodes is presented, which are pivotal for optimizing energy band alignment and enhancing solar-to-chemical conversion efficiency within the PEC system. Finally, this review explores innovative derivative configurations of MIS photoelectrodes, including back-illuminated MIS photoelectrodes, inverted MIS photoelectrodes, tandem MIS photoelectrodes, and monolithically integrated wireless MIS photoelectrodes. These novel architectures address the limitations of traditional MIS structures by effectively coupling different functional modules, minimizing optical and ohmic losses, and mitigating recombination losses.
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Affiliation(s)
- Shice Wei
- School of Microelectronics & Jiashan Fudan Institute, Fudan University, Shanghai 200433, China.
| | - Xuewen Xia
- School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China.
| | - Shuai Bi
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong 999077, China
| | - Shen Hu
- School of Microelectronics & Jiashan Fudan Institute, Fudan University, Shanghai 200433, China.
| | - Xuefeng Wu
- School of Microelectronics & Jiashan Fudan Institute, Fudan University, Shanghai 200433, China.
| | - Hsien-Yi Hsu
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong 999077, China
| | - Xingli Zou
- School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China.
| | - Kai Huang
- Department of Physics, Xiamen University, Xiamen 361005, China.
| | - David W Zhang
- School of Microelectronics & Jiashan Fudan Institute, Fudan University, Shanghai 200433, China.
| | - Qinqqing Sun
- School of Microelectronics & Jiashan Fudan Institute, Fudan University, Shanghai 200433, China.
| | - Allen J Bard
- Department of Chemistry, The University of Texas at Austin, Texas 78713, USA
| | - Edward T Yu
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Texas 78758, USA.
| | - Li Ji
- School of Microelectronics & Jiashan Fudan Institute, Fudan University, Shanghai 200433, China.
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Garcia‐Navarro J, Isaacs MA, Favaro M, Ren D, Ong W, Grätzel M, Jiménez‐Calvo P. Updates on Hydrogen Value Chain: A Strategic Roadmap. GLOBAL CHALLENGES (HOBOKEN, NJ) 2024; 8:2300073. [PMID: 38868605 PMCID: PMC11165467 DOI: 10.1002/gch2.202300073] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/21/2023] [Indexed: 06/14/2024]
Abstract
A strategic roadmap for noncarbonized fuels is a global priority, and the reduction of carbon dioxide emissions is a key focus of the Paris Agreement to mitigate the effects of rising temperatures. In this context, hydrogen is a promising noncarbonized fuel, but the pace of its implementation will depend on the engineering advancements made at each step of its value chain. To accelerate its adoption, various applications of hydrogen across industries, transport, power, and building sectors have been identified, where it can be used as a feedstock, fuel, or energy carrier and storage. However, widespread usage of hydrogen will depend on its political, industrial, and social acceptance. It is essential to carefully assess the hydrogen value chain and compare it with existing solar technologies. The major challenge to widespread adoption of hydrogen is its cost as outlined in the roadmap for hydrogen. It needs to be produced at the levelized cost of hydrogen of less than $2 kg-1 to be competitive with the established process of steam methane reforming. Therefore, this review provides a comprehensive analysis of each step of the hydrogen value chain, outlining both the current challenges and recent advances.
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Affiliation(s)
| | - Mark A. Isaacs
- Department of ChemistryUniversity College London20 Gower StreetLondonWC1H 0AJUK
- HarwellXPSResearch Complex at HarwellRutherford Appleton LabDidcotOX11 0FAUK
| | - Marco Favaro
- Institute for Solar FuelsHelmholtz‐Zentrum Berlin für Materialien und Energy GmbHHahn‐Meitner‐Platz 114109BerlinGermany
| | - Dan Ren
- School of Chemical Engineering and TechnologyXi'an Jiaotong UniversityWest Xianning Road 28Xi'an710049China
| | - Wee‐Jun Ong
- School of Energy and Chemical EngineeringXiamen University MalaysiaDarul EhsanSelangor43900Malaysia
- Center of Excellence for Nano Energy & Catalysis Technology (CONNECT)Xiamen University MalaysiaDarul EhsanSelangor43900Malaysia
- State Key Laboratory of Physical Chemistry of Solid SurfacesCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005China
- Shenzhen Research Institute of Xiamen UniversityShenzhen518057China
| | - Michael Grätzel
- Laboratory of Photonics and InterfacesInstitute of Chemical Sciences and EngineeringÉcole Polytechnique Fédérale de Lausanne (EPFL)Lausanne1015Switzerland
| | - Pablo Jiménez‐Calvo
- Department of Colloid ChemistryMax‐Planck‐Institute of Colloids and InterfacesAm Mühlenberg 114476PotsdamGermany
- Present address:
Department of Materials Science WW4‐LKOUniversity of Erlangen‐NurembergMartensstraße 791058ErlangenGermany
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6
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Liu S, Shi Y, Wang D, Zhang Q, Ma X, Yin Z, Zhou P, Wu L, Zhang M. Multiple synergies on cobalt-based spinel oxide nanowires for electrocatalytic oxygen evolution. J Colloid Interface Sci 2024; 655:685-692. [PMID: 37976741 DOI: 10.1016/j.jcis.2023.11.012] [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: 07/20/2023] [Revised: 10/29/2023] [Accepted: 11/02/2023] [Indexed: 11/19/2023]
Abstract
Cobalt-based spinel oxides have excellent oxygen evolution reaction (OER) activities and are cheap to produce; however, they have limited commercial applications due to their poor electrical conductivities and weak stabilities. Herein, we soaked Co3-xNixO4 nanowires in NaBH4 solutions, which endowed Co3-xNixO4 with significant oxygen vacancy content and decorated BOx motifs outside the Co3-xNixO4 nanowires. X-ray photoelectron spectroscopy and in situ Raman data suggest that these evolutions improved the conductivity, hydrophilicity, and increased active sites of the spinel oxides, which synergistically boosted their overall OER performances. This improved performance made the optimized BOx-covered Co2.1Ni0.9O4 nanowires generate a current density of 10 mA cm-2 when used for the OER at an overpotential of only 307 mV, maintaining excellent stability at 50 mA cm-2 for 24 h. This study provides a facile method for designing cobalt-based spinel oxide OER catalysts.
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Affiliation(s)
- Sirui Liu
- Jiangsu R&D Center of the Ecological Textile Engineering & Technology, Yancheng Polytechnic College, Yancheng 224005, PR China; Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, PR China
| | - Yuxin Shi
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, PR China
| | - Di Wang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, PR China
| | - Qiulan Zhang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, PR China
| | - Xinzhi Ma
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, PR China; Department of Mechanical Engineering, Hong Kong Polytechnic University, Hong Kong 999077, PR China.
| | - Zhuoxun Yin
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China
| | - Pengfei Zhou
- Jiangsu R&D Center of the Ecological Textile Engineering & Technology, Yancheng Polytechnic College, Yancheng 224005, PR China.
| | - Lili Wu
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, PR China
| | - Mingyi Zhang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, PR China.
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7
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Xu Z, Zuo W, Yu Y, Liu J, Cheng G, Zhao P. Surface Reconstruction Facilitated by Fluorine Migration and Bimetallic Center in NiCo Bimetallic Fluoride Toward Oxygen Evolution Reaction. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306758. [PMID: 38044293 PMCID: PMC10853698 DOI: 10.1002/advs.202306758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/06/2023] [Indexed: 12/05/2023]
Abstract
Oxygen evolution reaction (OER) is a critical anodic reaction of electrochemical water splitting, developing a high-efficiency electrocatalyst is essential. Transition metal-based catalysts are much more cost-effective if comparable activities can be achieved. Among them, fluorides are rarely reported due to their low aqueous stability of coordination and low electric conductivity. Herein, a NiCo bimetallic fluoride with good crystallinity is designed and constructed, and significantly enhanced catalytic activity and conductivity are observed. The inevitable oxidation of transition metal ions at high potential and the dissociation of F- are attributed to the low aqueous stability of coordination. The theoretical researches predicte that transition metal fluorides should have a strong tendency to electrochemical reconstruction. Therefore, based on the observations on their electrochemical behavior, high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, and bode plots, it is further demonstrated that surface reconstruction occurred during the electrochemical process, meanwhile a significant increase of electrochemically active area, which is created by F migration, are also directly observed. Additionally, DFT calculation results show that the electronic structure of the catalysts is modulated by the bimetallic centers, and this reconstruction helps optimizing the adsorption energy of oxygen-containing species and improves OER activity.
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Affiliation(s)
- Zhenhang Xu
- College of Chemistry and Molecular SciencesWuhan UniversityWuhanHubei430072P. R. China
| | - Wei Zuo
- College of Chemistry and Molecular SciencesWuhan UniversityWuhanHubei430072P. R. China
| | - Yueying Yu
- School of NursingWuhan UniversityWuhanHubei430072P. R. China
| | - Jinyan Liu
- Department of Biological and Chemical EngineeringZhixing College of Hubei UniversityWuhanHubei430011P. R. China
| | - Gongzhen Cheng
- College of Chemistry and Molecular SciencesWuhan UniversityWuhanHubei430072P. R. China
| | - Pingping Zhao
- School of NursingWuhan UniversityWuhanHubei430072P. R. China
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8
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Yin Z, Zhang K, Shi Y, Wang Y, Shen S. An Interface-cascading Silicon Photoanode with Strengthened Built-in Electric Field and Enriched Surface Oxygen Vacancies for Efficient Photoelectrochemical Water Splitting. Chemistry 2024:e202303895. [PMID: 38198245 DOI: 10.1002/chem.202303895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/10/2024] [Accepted: 01/10/2024] [Indexed: 01/12/2024]
Abstract
To promote interfacial charge transfer process and accelerate surface water oxidation reaction kinetics for photoelectrochemical (PEC) water splitting over n-type Silicon (n-Si) based photoanodes, herein, starting with surface stabilized n-Si/CoOx , a NiOx /NiFeOOH composite overlayer was coated by atomic layer deposition and spray coating to fabricate the multilayer structured n-Si/CoOx /NiOx /NiFeOOH photoanode. Encouragingly, the obtained n-Si/CoOx /NiOx /NiFeOOH photoanode exhibits much increased PEC activity for water splitting, with onset potential cathodically shifted to ~0.96 V vs. RHE and photocurrent density increased to 22.6 mA cm-2 at 1.23 V vs. RHE for OER, as compared to n-Si/CoOx , even significantly surpassing the counterpart n-Si/CoOx /NiOx /FeOOH and n-Si/CoOx /NiOx /NiOOH photoanodes. Photophysical and electrochemical characterizations evidence that the deposited CoOx /NiOx /NiFeOOH composite overlayer would create large band bending and strong built-in electric field at the introduced cascading interfaces, thereby producing a large photovoltage of 650 mV to efficiently accelerate charge transfer from the n-Si substrate to the electrolyte for water oxidation. Furthermore, the surface oxygen vacancy enriched NiFeOOH overlayer could effectively catalyze the water oxidation reaction by thermodynamically reducing the energy barrier of rate determining step for OER.
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Affiliation(s)
- Zhuocheng Yin
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Shaanxi, 710049, China
| | - Kaini Zhang
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Shaanxi, 710049, China
| | - Yuchuan Shi
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Shaanxi, 710049, China
| | - Yiqing Wang
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Shaanxi, 710049, China
| | - Shaohua Shen
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Shaanxi, 710049, China
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9
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Matsumoto Y, Nagatsuka K, Yamaguchi Y, Kudo A. Understanding the reaction mechanism and kinetics of photocatalytic oxygen evolution on CoOx-loaded bismuth vanadate. J Chem Phys 2023; 159:214706. [PMID: 38047512 DOI: 10.1063/5.0177506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 11/09/2023] [Indexed: 12/05/2023] Open
Abstract
Photocatalytic water splitting for green hydrogen production is hindered by the sluggish kinetics of oxygen evolution reaction (OER). Loading a co-catalyst is essential for accelerating the kinetics, but the detailed reaction mechanism and role of the co-catalyst are still obscure. Here, we focus on cobalt oxide (CoOx) loaded on bismuth vanadate (BiVO4) to investigate the impact of CoOx on the OER mechanism. We employ photoelectrochemical impedance spectroscopy and simultaneous measurements of photoinduced absorption and photocurrent. The reduction of V5+ in BiVO4 promotes the formation of a surface state on CoOx that plays a crucial role in the OER. The third-order reaction rate with respect to photohole charge density indicates that reaction intermediate species accumulate in the surface state through a three-electron oxidation process prior to the rate-determining step. Increasing the excitation light intensity onto the CoOx-loaded anode improves the photoconversion efficiency significantly, suggesting that the OER reaction at dual sites in an amorphous CoOx(OH)y layer dominates over single sites. Therefore, CoOx is directly involved in the OER by providing effective reaction sites, stabilizing reaction intermediates, and improving the charge transfer rate. These insights help advance our understanding of co-catalyst-assisted OER to achieve efficient water splitting.
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Affiliation(s)
- Yoshiyasu Matsumoto
- Toyota Physical and Chemical Research Institute, Nagakute, Aichi 480-1192, Japan
| | - Kengo Nagatsuka
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Tokyo 162-8601, Japan
| | - Yuichi Yamaguchi
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Tokyo 162-8601, Japan
- Carbon Value Research Center, Research Institute for Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan
| | - Akihiko Kudo
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Tokyo 162-8601, Japan
- Carbon Value Research Center, Research Institute for Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan
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10
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Ding J, Guo D, Wang N, Wang HF, Yang X, Shen K, Chen L, Li Y. Defect Engineered Metal-Organic Framework with Accelerated Structural Transformation for Efficient Oxygen Evolution Reaction. Angew Chem Int Ed Engl 2023; 62:e202311909. [PMID: 37671744 DOI: 10.1002/anie.202311909] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/03/2023] [Accepted: 09/06/2023] [Indexed: 09/07/2023]
Abstract
Metal-organic frameworks (MOFs) have been increasingly applied in oxygen evolution reaction (OER), and the surface of MOFs usually undergoes structural transformation to form metal oxyhydroxides to serve as catalytically active sites. However, the controllable regulation of the reconstruction process of MOFs remains as a great challenge. Here we report a defect engineering strategy to facilitate the structural transformation of MOFs to metal oxyhydroxides during OER with enhanced activity. Defective MOFs (denoted as NiFc'x Fc1-x ) with abundant unsaturated metal sites are constructed by mixing ligands of 1,1'-ferrocene dicarboxylic acid (Fc') and defective ferrocene carboxylic acid (Fc). NiFc'x Fc1-x series are more prone to be transformed to metal oxyhydroxides compared with the non-defective MOFs (NiFc'). Moreover, the as-formed metal oxyhydroxides derived from defective MOFs contain more oxygen vacancies. NiFc'Fc grown on nickel foam exhibits excellent OER catalytic activity with an overpotential of 213 mV at the current density of 100 mA cm-2 , superior to that of undefective NiFc'. Experimental results and theoretical calculations suggest that the abundant oxygen vacancies in the derived metal oxyhydroxides facilitate the adsorption of oxygen-containing intermediates on active centers, thus significantly improving the OER activity.
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Affiliation(s)
- Jieting Ding
- Guangdong Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Danyu Guo
- Guangdong Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Nanshu Wang
- Guangdong Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Hao-Fan Wang
- Guangdong Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Xianfeng Yang
- Analytical and Testing Centre, South China University of Technology, Guangzhou, 510640, China
| | - Kui Shen
- Guangdong Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Liyu Chen
- Guangdong Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Yingwei Li
- Guangdong Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
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11
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Ragonese P, Kalinic B, Franco L, Girardi L, Fernández Peréz BM, Carbonera D, Mattei G, Rizzi GA, Maurizio C. Effect of Interfacial SiO x Defects on the Functional Properties of Si-Transition Metal Oxide Photoanodes for Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2023; 15:46933-46940. [PMID: 37782757 PMCID: PMC10571009 DOI: 10.1021/acsami.3c09555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 09/19/2023] [Indexed: 10/04/2023]
Abstract
The transfer of photogenerated charges through interfaces in heterojunction photoanodes is a key process that controls the efficiency of solar water splitting. Considering Co3O4/SiOx/Si photoanodes prepared by physical vapor deposition as a representative case study, it is shown that defects normally present in the native SiOx layer dramatically affect the onset of the photocurrent. Electron paramagnetic resonance indicates that the signal of defects located in dangling bonds of trivalent Si atoms at the Si/SiOx interface vanishes upon vacuum annealing at 850 °C. Correspondingly, the photovoltage of the photoanode increases to ≈500 mV. Similar results are obtained for NiO/SiOx/Si photoanodes. Photoelectrochemical analysis and impedance spectroscopy (in solution and in the solid state) indicate how the defect annealing modifies the Co3O4/SiOx/Si junction. This work shows that defect annealing at the solid-solid interface in composite photoanodes strongly improves the efficiency of charge transfer through interfaces, which is the basis for effective solar-to-chemical energy conversion.
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Affiliation(s)
- P. Ragonese
- Physics
and Astronomy Department, University of
Padova, Via Marzolo 8, Padova I-35131, Italy
| | - B. Kalinic
- Physics
and Astronomy Department, University of
Padova, Via Marzolo 8, Padova I-35131, Italy
| | - L. Franco
- Department
of Chemical Sciences, University of Padova, Via Marzolo 1, Padova I-35131, Italy
| | - L. Girardi
- Department
of Chemical Sciences, University of Padova, Via Marzolo 1, Padova I-35131, Italy
| | - B. M. Fernández Peréz
- Physics
and Astronomy Department, University of
Padova, Via Marzolo 8, Padova I-35131, Italy
| | - D. Carbonera
- Department
of Chemical Sciences, University of Padova, Via Marzolo 1, Padova I-35131, Italy
| | - G. Mattei
- Physics
and Astronomy Department, University of
Padova, Via Marzolo 8, Padova I-35131, Italy
| | - G.-A. Rizzi
- Department
of Chemical Sciences, University of Padova, Via Marzolo 1, Padova I-35131, Italy
| | - C. Maurizio
- Physics
and Astronomy Department, University of
Padova, Via Marzolo 8, Padova I-35131, Italy
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12
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Tian G, Liu X, Song S, Zhang Q, Wang Z, Liu Y, Zheng Z, Cheng H, Dai Y, Huang B, Wang P. In Situ Formation of CoP/Co 3 O 4 Heterojunction for Efficient Overall Water Splitting. Chemistry 2023; 29:e202301478. [PMID: 37332063 DOI: 10.1002/chem.202301478] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/05/2023] [Accepted: 06/13/2023] [Indexed: 06/20/2023]
Abstract
Electrochemical water splitting is an environmentally friendly and effective energy storage method. However, it is still a huge challenge to prepare non-noble metal based electrocatalysts that possess high activity and long-term durability to realize efficient water splitting. Here, we present a novel method of low-temperature phosphating for preparing CoP/Co3 O4 heterojunction nanowires catalyst on titanium mesh (TM) substrate that can be used for oxygen evolution reaction (OER), hydrogen evolution reaction (HER), and overall water splitting. CoP/Co3 O4 @TM heterojunction showed an excellent catalytic performance and long-term durability in 1.0 M KOH electrolyte. The overpotential of CoP/Co3 O4 @TM heterojunction was only 257 mV at 20 mA cm-2 during the OER process, and it could work stably more than 40 h at 1.52 V versus reversible hydrogen electrode (vs. RHE). During the HER process, the overpotential of CoP/Co3 O4 @TM heterojunction was only 98 mV at -10 mA cm-2 . More importantly, when used as anodic and cathodic electrocatalyst, they achieved 10 mA cm-2 at 1.59 V. The Faradaic efficiencies of OER and HER were 98.4 % and 99.4 %, respectively, outperforming Ru/Ir-based noble metal electrocatalysts and other non-noble metal electrocatalysts for overall water splitting.
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Affiliation(s)
- Guoliang Tian
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Xiaolei Liu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Shuhong Song
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Qianqian Zhang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Zeyan Wang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Yuanyuan Liu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Zhaoke Zheng
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Hefeng Cheng
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Ying Dai
- School of Physics, Shandong University, Jinan, 250100, P. R. China
| | - Baibiao Huang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Peng Wang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
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13
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Duan W, Han S, Fang Z, Xiao Z, Lin S. In Situ Filling of the Oxygen Vacancies with Dual Heteroatoms in Co 3O 4 for Efficient Overall Water Splitting. Molecules 2023; 28:molecules28104134. [PMID: 37241875 DOI: 10.3390/molecules28104134] [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: 04/20/2023] [Revised: 05/05/2023] [Accepted: 05/14/2023] [Indexed: 05/28/2023] Open
Abstract
Electrocatalytic water splitting is a crucial area in sustainable energy development, and the development of highly efficient bifunctional catalysts that exhibit activity toward both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is of paramount importance. Co3O4 is a promising candidate catalyst, owing to the variable valence of Co, which can be exploited to enhance the bifunctional catalytic activity of HER and OER through rational adjustments of the electronic structure of Co atoms. In this study, we employed a plasma-etching strategy in combination with an in situ filling of heteroatoms to etch the surface of Co3O4, creating abundant oxygen vacancies, while simultaneously filling them with nitrogen and sulfur heteroatoms. The resulting N/S-VO-Co3O4 exhibited favorable bifunctional activity for alkaline electrocatalytic water splitting, with significantly enhanced HER and OER catalytic activity compared to pristine Co3O4. In an alkaline overall water-splitting simulated electrolytic cell, N/S-VO-Co3O4 || N/S-VO-Co3O4 showed excellent overall water splitting catalytic activity, comparable to noble metal benchmark catalysts Pt/C || IrO2, and demonstrated superior long-term catalytic stability. Additionally, the combination of in situ Raman spectroscopy with other ex situ characterizations provided further insight into the reasons behind the enhanced catalyst performance achieved through the in situ incorporation of N and S heteroatoms. This study presents a facile strategy for fabricating highly efficient cobalt-based spinel electrocatalysts incorporated with double heteroatoms for alkaline electrocatalytic monolithic water splitting.
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Affiliation(s)
- Wei Duan
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, No. 58 Renmin Road, Haikou 570228, China
| | - Shixing Han
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, No. 58 Renmin Road, Haikou 570228, China
| | - Zhonghai Fang
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, No. 58 Renmin Road, Haikou 570228, China
| | - Zhaohui Xiao
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, No. 58 Renmin Road, Haikou 570228, China
| | - Shiwei Lin
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, No. 58 Renmin Road, Haikou 570228, China
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14
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Frei H. Time-Resolved Vibrational and Electronic Spectroscopy for Understanding How Charges Drive Metal Oxide Catalysts for Water Oxidation. J Phys Chem Lett 2022; 13:7953-7964. [PMID: 35981106 DOI: 10.1021/acs.jpclett.2c01320] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Temporally resolved spectroscopy is a powerful approach for gaining detailed mechanistic understanding of water oxidation at robust Earth-abundant metal oxide catalysts for guiding efficiency improvement of solar fuel conversion systems. Beyond detecting and structurally identifying surface intermediates by vibrational and accompanying optical spectroscopy, knowledge of how charges, sequentially delivered to the metal oxide surface, drive the four-electron water oxidation cycle is critical for enhancing catalytic efficiency. Key issues addressed in this Perspective are the experimental requirements for establishing the kinetic relevancy of observed surface species and the discovery of the rate-boosting role of encounters of two or more one-electron surface hole charges, often in the form of randomly hopping metal oxo or oxyl moieties, for accessing very low-barrier O-O bond-forming pathways. Recent spectroscopic breakthroughs of metal oxide photo- and electrocatalysts inspire future research poised to take advantage of new highly sensitive spectroscopic tools and of methods for fast catalysis triggering.
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Affiliation(s)
- Heinz Frei
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, United States
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15
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Cong Y, Chen X, Mei Y, Ye J, Li TT. CeO 2 decorated bimetallic phosphide nanowire arrays for enhanced oxygen evolution reaction electrocatalysis via interface engineering. Dalton Trans 2022; 51:2923-2931. [PMID: 35103730 DOI: 10.1039/d1dt03931h] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
To realize electrocatalytic water splitting for hydrogen production, the development of efficient and durable anode materials containing earth-abundant elements is of great significance. In this work, we demonstrate a novel heterostructure with easily depositing CeO2 nanoparticles on the surface of the metal-organic framework (MOF)-derived Co0.4Ni1.6P nanowire arrays. Such an interface engineering strategy triggers the formation of abundant oxygen vacancies and provides more electrocatalytically active sites. Besides, the synergistic effect in this composite can regulate the electronic structure, and lead to an enhanced charge-transfer ability. Benefiting from the above superiorities, this heterostructure exhibits remarkable electrocatalytic performance towards the oxygen evolution reaction (OER) in 1 M KOH electrolyte, requiring overpotentials (η) of 268 and 343 mV to yield current densities of 10 and 100 mA cm-2, respectively, accompanied by a low Tafel slope of 79.3 mV dec-1. Furthermore, the electrocatalytic performance of this heterostructure for the OER in simulated alkaline seawater (1 M KOH + 0.5 M NaCl) was also studied, and it achieved low η values of 345 and 394 mV to drive 100 and 200 mA cm-2, respectively. This work presents a simple approach to fabricate heterostructural electrocatalysts with CeO2 nanoparticles for high-performance water/seawater electrolysis.
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Affiliation(s)
- Yikang Cong
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China.
| | - Xingnan Chen
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China.
| | - Yan Mei
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China.
| | - Jun Ye
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China.
| | - Ting-Ting Li
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China. .,Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Ningbo University, Ningbo 315211, China
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16
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Kashif M, Fiaz M, Sajid MS, Gul F, Farid MA, Ashiq MN, Najam-ul-Haq M, Athar M. Functionalization of UiO-66-NH2 by In-Situ Incorporation of Nanomaterials to Enhance Photocatalytic Efficiency Towards Oxygen Evolution Reaction. Catal Letters 2022. [DOI: 10.1007/s10562-022-03937-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Zhang M, Zhou L, Du X, Huang X, Liu H, Wang Q, Guo L, Wang H. Rapid In-Situ Growth of Oxygen-defects Rich Fe(OH)3@Co(OH)2@NF Nanoarray as Efficient OER Electrocatalyst. CHEM LETT 2022. [DOI: 10.1246/cl.210814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Mengyuan Zhang
- School of Mathematics and Physics, China University of Geosciences, Wuhan 430079, P. R. China
| | - Lina Zhou
- School of Mathematics and Physics, China University of Geosciences, Wuhan 430079, P. R. China
| | - Xuena Du
- School of Mathematics and Physics, China University of Geosciences, Wuhan 430079, P. R. China
| | - Xianmin Huang
- School of Mathematics and Physics, China University of Geosciences, Wuhan 430079, P. R. China
| | - Hui Liu
- School of Mathematics and Physics, China University of Geosciences, Wuhan 430079, P. R. China
| | - Qingbo Wang
- School of Mathematics and Physics, China University of Geosciences, Wuhan 430079, P. R. China
| | - Long Guo
- School of Mathematics and Physics, China University of Geosciences, Wuhan 430079, P. R. China
| | - Hai Wang
- School of Mathematics and Physics, China University of Geosciences, Wuhan 430079, P. R. China
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18
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Liu L, Li W, He X, Yang J, Liu N. In Situ/Operando Insights into the Stability and Degradation Mechanisms of Heterogeneous Electrocatalysts. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2104205. [PMID: 34741400 DOI: 10.1002/smll.202104205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 09/11/2021] [Indexed: 06/13/2023]
Abstract
The further commercialization of renewable energy conversion and storage technologies requires heterogeneous electrocatalysts that meet the exacting durability target. Studies of the stability and degradation mechanisms of electrocatalysts are expected to provide important breakthroughs in stability issues. Accessible in situ/operando techniques performed under realistic reaction conditions are therefore urgently needed to reveal the nature of active center structures and establish links between the structural motifs in a catalyst and its stability properties. This review highlights recent research advances regarding in situ/operando techniques and improves the understanding of the stabilities of advanced heterogeneous electrocatalysts used in a diverse range of electrochemical reactions; it also proposes some degradation mechanisms. The review concludes by offering suggestions for future research.
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Affiliation(s)
- Lindong Liu
- College of Resources and Environment, College of Sericulture,Textile and Biomass Sciences, Southwest University, Chongqing, 400715, China
- Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province, Shaoxing University, Zhejiang, 312000, China
| | - Wanting Li
- College of Resources and Environment, College of Sericulture,Textile and Biomass Sciences, Southwest University, Chongqing, 400715, China
| | - Xianbo He
- College of Resources and Environment, College of Sericulture,Textile and Biomass Sciences, Southwest University, Chongqing, 400715, China
| | - Jiao Yang
- College of Resources and Environment, College of Sericulture,Textile and Biomass Sciences, Southwest University, Chongqing, 400715, China
| | - Nian Liu
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
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19
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Yue C, Zhou Y, Liu Y, Feng C, Bao W, Sun F, Tuo Y, Pan Y, Liu Y, Lu Y. Achieving ultra-dispersed 1T-Co-MoS 2@HMCS via space-confined engineering for highly efficient hydrogen evolution in the universal pH range. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00269h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A multi-level spatial confinement strategy is proposed for the fabrication of ultra-dispersed 1T-Co-MoS2 nanoclusters, which exhibit remarkable electrocatalytic activity and durability for HER.
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Affiliation(s)
- Changle Yue
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Yan Zhou
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Yang Liu
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Chao Feng
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Wenjing Bao
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Fengyue Sun
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Yongxiao Tuo
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Yuan Pan
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Yunqi Liu
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Yukun Lu
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
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20
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Hou J, Peng X, Sun J, Zhang S, Liu Q, Wang X, Luo J, Liu X. Accelerating hydrazine-assisted hydrogen production kinetics with Mn dopant modulated CoS 2 nanowire arrays. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00083k] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The designed Mn-modified CoS2 catalyst exhibits outstanding bifunctional electrocatalytic performances toward hydrogen evolution reaction and hydrazine oxidation reaction for high-efficiency energy-saving H2 production by water-assisted electrolysis.
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Affiliation(s)
- Junrong Hou
- Information Technology Research Institute, Shenzhen Institute of Information Technology, Shenzhen 518172, China
- Institute for New Energy Materials & Low-Carbon Technologies and Tianjin Key Lab of Photoelectric Materials & Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Xianyun Peng
- Institute of Zhejiang University – Quzhou, Quzhou 324000, China
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jiaqiang Sun
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Shusheng Zhang
- College of Chemistry, Zhengzhou University, Zhengzhou 450000, China
| | - Qian Liu
- Institute for Advanced Study, Chengdu University, Chengdu 610106, Sichuan, China
| | - Xinzhong Wang
- Information Technology Research Institute, Shenzhen Institute of Information Technology, Shenzhen 518172, China
| | - Jun Luo
- Institute for New Energy Materials & Low-Carbon Technologies and Tianjin Key Lab of Photoelectric Materials & Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Xijun Liu
- MOE Key Laboratory of New Processing Technology for Non-Ferrous Metals and Materials, and Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured Materials, School of Resource, Environments & Materials, Guangxi University, Nanning 530004, China
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21
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Zhang G, Baranov M, Wang F, Poblet JM, Kozuch S, Leffler N, Shames AI, Clemente-Juan JM, Neyman A, Weinstock IA. Soluble Complexes of Cobalt Oxide Fragments Bring the Unique CO 2 Photoreduction Activity of a Bulk Material into the Flexible Domain of Molecular Science. J Am Chem Soc 2021; 143:20769-20778. [PMID: 34854676 DOI: 10.1021/jacs.1c08817] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The deposition of metal oxides is essential to the fabrication of numerous multicomponent solid-state devices and catalysts. However, the reproducible formation of homogeneous metal oxide films or of nanoparticle dispersions at solid interfaces remains an ongoing challenge. Here we report that molecular hexaniobate cluster anion complexes of structurally and electronically distinct fragments of cubic-spinel and monoclinic Co3O4 can serve as tractable yet well-defined functional analogues of bulk cobalt oxide. Notably, the energies of the highest-occupied and lowest-unoccupied molecular orbitals (HOMO and LUMO) of the molecular complexes, 1, closely match the valence- and conduction-band (VB and CB) energies of the parent bulk oxides. Use of 1 as a molecular analogue of the parent oxides is demonstrated by its remarkably simple deployment as a cocatalyst for direct Z-scheme reduction of CO2 by solar light and water. Namely, evaporation of an aqueous solution of 1 on TiO2-coated fluorinated tin oxide windows (TiO2/FTO), immersion in wet acetonitrile, and irradiation by simulated solar light under an atmosphere of CO2 give H2, CO, and CH4 in ratios nearly identical to those obtained using 20 nm spinel-Co3O4 nanocrystals, but 15 times more rapidly on a Co basis and more rapidly overall than other reported systems. Detailed investigation of the photocatalytic properties of 1 on TiO2/FTO includes confirmation of a direct Z-scheme charge-carrier migration pathway by in situ irradiated X-ray photoelectron spectroscopy. More generally, the findings point to a potentially important new role for coordination chemistry that bridges the conceptual divide between molecular and solid-state science.
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Affiliation(s)
- Guanyun Zhang
- Department of Chemistry and the Ilse Katz Institute for Nanoscale Science & Technology, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Mark Baranov
- Department of Chemistry and the Ilse Katz Institute for Nanoscale Science & Technology, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Fei Wang
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, 43007 Tarragona, Spain
| | - Josep M Poblet
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, 43007 Tarragona, Spain
| | - Sebastian Kozuch
- Department of Chemistry and the Ilse Katz Institute for Nanoscale Science & Technology, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Nitai Leffler
- Department of Chemistry and the Ilse Katz Institute for Nanoscale Science & Technology, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Alexander I Shames
- Department of Physics, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Juan M Clemente-Juan
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, 46980 Paterna, Spain
| | - Alevtina Neyman
- Department of Chemistry and the Ilse Katz Institute for Nanoscale Science & Technology, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Ira A Weinstock
- Department of Chemistry and the Ilse Katz Institute for Nanoscale Science & Technology, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
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22
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Feng C, Wang F, Liu Z, Nakabayashi M, Xiao Y, Zeng Q, Fu J, Wu Q, Cui C, Han Y, Shibata N, Domen K, Sharp ID, Li Y. A self-healing catalyst for electrocatalytic and photoelectrochemical oxygen evolution in highly alkaline conditions. Nat Commun 2021; 12:5980. [PMID: 34645825 PMCID: PMC8514436 DOI: 10.1038/s41467-021-26281-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/28/2021] [Indexed: 01/08/2023] Open
Abstract
While self-healing is considered a promising strategy to achieve long-term stability for oxygen evolution reaction (OER) catalysts, this strategy remains a challenge for OER catalysts working in highly alkaline conditions. The self-healing of the OER-active nickel iron layered double hydroxides (NiFe-LDH) has not been successful due to irreversible leaching of Fe catalytic centers. Here, we investigate the introduction of cobalt (Co) into the NiFe-LDH as a promoter for in situ Fe redeposition. An active borate-intercalated NiCoFe-LDH catalyst is synthesized using electrodeposition and shows no degradation after OER tests at 10 mA cm−2 at pH 14 for 1000 h, demonstrating its self-healing ability under harsh OER conditions. Importantly, the presence of both ferrous ions and borate ions in the electrolyte is found to be crucial to the catalyst’s self-healing. Furthermore, the implementation of this catalyst in photoelectrochemical devices is demonstrated with an integrated silicon photoanode. The self-healing mechanism leads to a self-limiting catalyst thickness, which is ideal for integration with photoelectrodes since redeposition is not accompanied by increased parasitic light absorption. While self-healing catalysts may survive the harsh environments used for oxygen evolution, understanding how to develop such electrocatalysts remains a challenge. Here, authors find cobalt to promote the self-healing of leached iron centers in borate-intercalated nickel-iron-cobalt oxyhydroxides.
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Affiliation(s)
- Chao Feng
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, 610054, Chengdu, China
| | - Faze Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, 610054, Chengdu, China.,Walter Schottky Institut and Physik Department, Technische Universität München, Am Coulombwall 4, 85748, Garching, Germany
| | - Zhi Liu
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, 610054, Chengdu, China
| | - Mamiko Nakabayashi
- Institute of Engineering Innovation, The University of Tokyo, Tokyo, 113-8656, Japan
| | - Yequan Xiao
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, 610054, Chengdu, China
| | - Qiugui Zeng
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, 610054, Chengdu, China
| | - Jie Fu
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, 610054, Chengdu, China
| | - Qianbao Wu
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, 610054, Chengdu, China
| | - Chunhua Cui
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, 610054, Chengdu, China
| | - Yifan Han
- Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of Education, Zhengzhou University, 450001, Zhengzhou, China
| | - Naoya Shibata
- Institute of Engineering Innovation, The University of Tokyo, Tokyo, 113-8656, Japan
| | - Kazunari Domen
- Office of University Professors, The University of Tokyo, Tokyo, 113-8656, Japan.,Research Initiative for Supra-Materials (RISM), Shinshu University, Nagano, 380-8553, Japan
| | - Ian D Sharp
- Walter Schottky Institut and Physik Department, Technische Universität München, Am Coulombwall 4, 85748, Garching, Germany.
| | - Yanbo Li
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, 610054, Chengdu, China.
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23
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Ye S, Shi W, Liu Y, Li D, Yin H, Chi H, Luo Y, Ta N, Fan F, Wang X, Li C. Unassisted Photoelectrochemical Cell with Multimediator Modulation for Solar Water Splitting Exceeding 4% Solar-to-Hydrogen Efficiency. J Am Chem Soc 2021; 143:12499-12508. [PMID: 34343431 DOI: 10.1021/jacs.1c00802] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Photoelectrochemical overall water splitting has been considered as a promising approach for producing chemical energy from solar energy. Although many photoelectrochemical cells have been developed for overall water splitting by coupling two semiconductor photoelectrodes, inefficient charge transfer between the light-harvesters and electron acceptor/donor severely restricts the solar energy conversion efficiency. Inspired by natural photosynthesis, we assembled a photoelectrochemical platform with multimediator modulation to achieve unassisted overall water splitting. Photogenerated electrons are transferred in order through multimediators driven by the electrochemical potential gradient, resulting in efficient charge separation and transportation with enhanced charge transfer rate and reduced charge recombination rate. The integrated system composed of inorganic oxide-based photoanode (BiVO4) and organic polymer-based photocathode (PBDB-T:ITIC:PC71BM) with complementary light absorption, exhibits a solar-to-hydrogen conversion efficiency as high as 4.3%. This work makes a rational design possible by constructing an efficient charge-transfer chain in artificial photosynthesis systems for solar fuel production.
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Affiliation(s)
- Sheng Ye
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, P. R. China
| | - Wenwen Shi
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, P. R. China.,University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, P. R. China
| | - Yong Liu
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, P. R. China
| | - Dongfeng Li
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, P. R. China.,University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, P. R. China
| | - Hang Yin
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, P. R. China.,University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, P. R. China
| | - Haibo Chi
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, P. R. China
| | - Yaling Luo
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, P. R. China.,University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, P. R. China
| | - Na Ta
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, P. R. China
| | - Fengtao Fan
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, P. R. China
| | - Xiuli Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, P. R. China
| | - Can Li
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, P. R. China
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24
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Zeng G, Pham TA, Vanka S, Liu G, Song C, Cooper JK, Mi Z, Ogitsu T, Toma FM. Development of a photoelectrochemically self-improving Si/GaN photocathode for efficient and durable H 2 production. NATURE MATERIALS 2021; 20:1130-1135. [PMID: 33820963 DOI: 10.1038/s41563-021-00965-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 02/19/2021] [Indexed: 05/26/2023]
Abstract
Development of an efficient yet durable photoelectrode is of paramount importance for deployment of solar-fuel production. Here, we report the photoelectrochemically self-improving behaviour of a silicon/gallium nitride photocathode active for hydrogen production with a Faradaic efficiency approaching ~100%. By using a correlative approach based on different spectroscopic and microscopic techniques, as well as density functional theory calculations, we provide a mechanistic understanding of the chemical transformation that is the origin of the self-improving behaviour. A thin layer of gallium oxynitride forms on the side walls of the gallium nitride grains, via a partial oxygen substitution at nitrogen sites, and displays a higher density of catalytic sites for the hydrogen-evolving reaction. This work demonstrates that the chemical transformation of gallium nitride into gallium oxynitride leads to sustained operation and enhanced catalytic activity, thus showing promise for oxynitride layers as protective catalytic coatings for hydrogen evolution.
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Affiliation(s)
- Guosong Zeng
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Tuan Anh Pham
- Materials Science Division, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Srinivas Vanka
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI, USA
| | - Guiji Liu
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Chengyu Song
- National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Jason K Cooper
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Zetian Mi
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI, USA.
| | - Tadashi Ogitsu
- Materials Science Division, Lawrence Livermore National Laboratory, Livermore, CA, USA.
| | - Francesca M Toma
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
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25
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Load CoOx cocatalyst on photoanode by spin coating and calcination for enhanced photoelectrochemical water oxidation: A case study on BiVO4. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122154] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Shen Y, Cosquer G, Zhang H, Breedlove BK, Cui M, Yamashita M. 4f-π Molecular Hybrid Exhibiting Rich Conductive Phases and Slow Relaxation of Magnetization. J Am Chem Soc 2021; 143:9543-9550. [PMID: 34156240 DOI: 10.1021/jacs.1c03748] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Cooperation between single-molecule magnets and electrical conductivity holds promise for preparing high-density magnetic devices; however, there are only a few reports so far. Here we report a 4f-π-based molecular hybrid, k-(ET)5Dy(NCS)7(KCl)0.5 (1) (ET = bis(ethylenedithio)tetrathiafulvalene, NCS- = thiocyanate), which undergoes slow relaxation of the magnetization and electrical conductivity. Unlike common ET-based conductive salts, K+ ions were intercalated into ET layers and coordinated with ET radicals. We found that the ET charges were sensitive to temperature, resulting in rich conductive phases at 75-300 K. In particular, the upturn in conductivity with a clear hysteresis loop was explained by the formation of partially oxidized states with charges close to 0.5+, which accounts for a metallic state. From the results of electronic structure calculations, the hole concentration increased to 125 K, which is consistent with a partially oxidized state upon cooling. The weak antiferromagnetic interactions accompanied by a dual magnetic relaxation process below 4 K are closely associated with the weak 4f-π interactions.
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Affiliation(s)
- Yongbing Shen
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-Ku, Sendai 980-8578, Japan
| | - Goulven Cosquer
- Research Group of Solid Material Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8526, Japan
| | - Haitao Zhang
- Institute of Inorganic and Applied Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
| | - Brian K Breedlove
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-Ku, Sendai 980-8578, Japan
| | - Mengxing Cui
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-Ku, Sendai 980-8578, Japan
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-Ku, Sendai 980-8578, Japan.,School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
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27
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One-Step Construction of Multi-Walled CNTs Loaded with Alpha-Fe 2O 3 Nanoparticles for Efficient Photocatalytic Properties. MATERIALS 2021; 14:ma14112820. [PMID: 34070510 PMCID: PMC8199084 DOI: 10.3390/ma14112820] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/21/2021] [Accepted: 05/24/2021] [Indexed: 11/26/2022]
Abstract
The aggregation and the rapid restructuring of the photoinduced electron−hole pairs restructuring in the process of photoelectric response remains a great challenge. In this study, a kind of Multi-walled carbon nanotubes loaded Alpha-Fe2O3 (CNTs/α-Fe2O3) heterostructure composite is successfully prepared via the one-step method. Due to the synergistic effect in the as-prepared CNTs/α-Fe2O3, the defect sites and oxygen-containing functional groups of CNTs can dramatically improve the interface charge separation efficiency and prevent the aggregation of α-Fe2O3. The improved photocurrent and enhanced hole–electron separation rate in the CNTs/α-Fe2O3 is obtained, and the narrower band gap is measured to be 2.8 ev with intensive visible-light absorption performance. Thus, the CNTs/α-Fe2O3 composite serves as an excellent visible light photocatalyst and exhibits an outstanding photocatalytic activity for the cationic dye degradation of rhodamine B (RhB). This research supplies a fresh application area forα-Fe2O3 photocatalyst and initiates a new approach for design of high efficiency photocatalytic materials.
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28
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Ge R, Huo J, Sun M, Zhu M, Li Y, Chou S, Li W. Surface and Interface Engineering: Molybdenum Carbide-Based Nanomaterials for Electrochemical Energy Conversion. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e1903380. [PMID: 31532899 DOI: 10.1002/smll.201903380] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 08/31/2019] [Indexed: 06/10/2023]
Abstract
Molybdenum carbide (Mox C)-based nanomaterials have shown competitive performances for energy conversion applications based on their unique physicochemical properties. A large surface area and proper surface atomic configuration are essential to explore potentiality of Mox C in electrochemical applications. Although considerable efforts are made on the development of advanced Mox C-based catalysts for energy conversion with high efficiency and stability, some urgent issues, such as low electronic conductivity, low catalytic efficiency, and structural instability, have to be resolved in accordance with their application environments. Surface and interface engineering have shown bright prospects to construct highly efficient Mox C-based electrocatalysts for energy conversion including the hydrogen evolution reaction, oxygen evolution reaction, nitrogen reduction reaction, and carbon dioxide reduction reaction. In this Review, the recent progresses in terms of surface and interface engineering of Mox C-based electrocatalytic materials are summarized, including the increased number of active sites by decreasing the particle size or introducing porous or hierarchical structures and surface modification by introducing heteroatom(s), defects, carbon materials, and others electronic conductive species. Finally, the challenges and prospects for energy conversion on Mox C-based nanomaterials are discussed in terms of key performance parameters for the catalytic performance.
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Affiliation(s)
- Riyue Ge
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Juanjuan Huo
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Mingjie Sun
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Mingyuan Zhu
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Ying Li
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Shulei Chou
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, North Wollongong, New South Wales, 2522, Australia
| | - Wenxian Li
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
- Shanghai Key Laboratory of High Temperature Superconductors, Shanghai, 200444, China
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29
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Das A, Mohapatra B, Kamboj V, Ranjan C. Promotion of Electrochemical Water Oxidation Activity of Au Supported Cobalt Oxide upon Addition of Cr: Insights using
in situ
Raman Spectroscopy. ChemCatChem 2021. [DOI: 10.1002/cctc.202001889] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Abhinaba Das
- Department of Inorganic and Physical Chemistry Indian Institute of Science Bangalore 560012 India
- Department of Undergraduate Studies Indian Institute of Science Bangalore 560012 India
| | - Bapuji Mohapatra
- Department of Inorganic and Physical Chemistry Indian Institute of Science Bangalore 560012 India
| | - Vipin Kamboj
- Department of Inorganic and Physical Chemistry Indian Institute of Science Bangalore 560012 India
| | - Chinmoy Ranjan
- Department of Inorganic and Physical Chemistry Indian Institute of Science Bangalore 560012 India
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30
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Zhao Y, Zhang L, Liu J, Adair K, Zhao F, Sun Y, Wu T, Bi X, Amine K, Lu J, Sun X. Atomic/molecular layer deposition for energy storage and conversion. Chem Soc Rev 2021; 50:3889-3956. [PMID: 33523063 DOI: 10.1039/d0cs00156b] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Energy storage and conversion systems, including batteries, supercapacitors, fuel cells, solar cells, and photoelectrochemical water splitting, have played vital roles in the reduction of fossil fuel usage, addressing environmental issues and the development of electric vehicles. The fabrication and surface/interface engineering of electrode materials with refined structures are indispensable for achieving optimal performances for the different energy-related devices. Atomic layer deposition (ALD) and molecular layer deposition (MLD) techniques, the gas-phase thin film deposition processes with self-limiting and saturated surface reactions, have emerged as powerful techniques for surface and interface engineering in energy-related devices due to their exceptional capability of precise thickness control, excellent uniformity and conformity, tunable composition and relatively low deposition temperature. In the past few decades, ALD and MLD have been intensively studied for energy storage and conversion applications with remarkable progress. In this review, we give a comprehensive summary of the development and achievements of ALD and MLD and their applications for energy storage and conversion, including batteries, supercapacitors, fuel cells, solar cells, and photoelectrochemical water splitting. Moreover, the fundamental understanding of the mechanisms involved in different devices will be deeply reviewed. Furthermore, the large-scale potential of ALD and MLD techniques is discussed and predicted. Finally, we will provide insightful perspectives on future directions for new material design by ALD and MLD and untapped opportunities in energy storage and conversion.
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Affiliation(s)
- Yang Zhao
- Department of Mechanical & Materials Engineering, University of Western Ontario, London, ON N6A 5B9, Canada.
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31
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Noor T, Yaqoob L, Iqbal N. Recent Advances in Electrocatalysis of Oxygen Evolution Reaction using Noble‐Metal, Transition‐Metal, and Carbon‐Based Materials. ChemElectroChem 2020. [DOI: 10.1002/celc.202001441] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Tayyaba Noor
- School of Chemical and Materials Engineering (SCME) National University of Sciences and Technology (NUST) Islamabad Pakistan
| | - Lubna Yaqoob
- School of Natural Sciences (SNS) National University of Sciences and Technology (NUST) Islamabad Pakistan
| | - Naseem Iqbal
- U.S.-Pakistan Center for Advanced Studies in Energy (USPCAS-E) National University of Sciences and Technology (NUST) H-12 Campus Islamabad 44000 Pakistan
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32
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Long D, Li M, Wang H, Wang H, Chai Y, Li Z, Yuan R. Ultrasensitive Photoelectrochemical Assay for DNA Detection Based on a Novel SnS2/Co3O4 Sensitized Structure. Anal Chem 2020; 92:14769-14774. [DOI: 10.1021/acs.analchem.0c03497] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Dan Long
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Mengjie Li
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Haihua Wang
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Haijun Wang
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Yaqin Chai
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Zhaohui Li
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Ruo Yuan
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
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33
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Fan A, Zheng P, Qin C, Zhang X, Dai X, Ren D, Fang X, Luan C, Yang J. Few-layer MoS2 and Pt nanoparticles Co-anchored on MWCNTs for efficient hydrogen evolution over a wide pH range. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136927] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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34
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He D, Gao RT, Liu S, Sun M, Liu X, Hu K, Su Y, Wang L. Yttrium-Induced Regulation of Electron Density in NiFe Layered Double Hydroxides Yields Stable Solar Water Splitting. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03272] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Dan He
- School of Chemistry and Chemical Engineering & Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, 235 West University Street, Hohhot 010021, China
| | - Rui-Ting Gao
- School of Chemistry and Chemical Engineering & Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, 235 West University Street, Hohhot 010021, China
| | - Shujie Liu
- School of Chemistry and Chemical Engineering & Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, 235 West University Street, Hohhot 010021, China
| | - Mao Sun
- School of Chemistry and Chemical Engineering & Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, 235 West University Street, Hohhot 010021, China
| | - Xianhu Liu
- Key Laboratory of Materials Processing and Mold, Ministry of Education, Zhengzhou University, Zhengzhou 450002, China
| | - Kan Hu
- School of Chemistry and Chemical Engineering & Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, 235 West University Street, Hohhot 010021, China
| | - Yiguo Su
- School of Chemistry and Chemical Engineering & Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, 235 West University Street, Hohhot 010021, China
| | - Lei Wang
- School of Chemistry and Chemical Engineering & Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, 235 West University Street, Hohhot 010021, China
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35
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Zhang P, Wang W, Wang H, Li Y, Cui C. Tuning Hole Accumulation of Metal Oxides Promotes the Oxygen Evolution Rate. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02882] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
| | - Wei Wang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Hui Wang
- Analytical & Testing Center, Sichuan University, Chengdu 610065, China
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36
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Gadea ED, Perez Sirkin YA, Molinero V, Scherlis DA. Electrochemically Generated Nanobubbles: Invariance of the Current with Respect to Electrode Size and Potential. J Phys Chem Lett 2020; 11:6573-6579. [PMID: 32692923 DOI: 10.1021/acs.jpclett.0c01404] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Gas-producing electrochemical reactions are key to energy conversion and generation technologies. Bubble formation dramatically decreases gas-production rates on nanoelectrodes, by confining the reaction to the electrode boundary. This results in the collapse of the current to a stationary value independent of the potential. Startlingly, these residual currents also appear to be insensitive to the nanoelectrode diameter in the 5 to 500 nm range. These results are counterintuitive, as it may be expected that the current be proportional to the circumference of the electrode, i.e., the length of the three-phase line where the reaction occurs. Here, we use molecular simulations and a kinetic model to elucidate the origin of current insensitivity with respect to the potential and establish its relationship to the size of nanoelectrodes. We provide critical insights for the design and operation of nanoscale electrochemical devices and demonstrate that nanoelectrode arrays maximize conversion rates compared to macroscopic electrodes with same total area.
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Affiliation(s)
- Esteban D Gadea
- Departamento de Quı́mica Inorgánica, Analı́tica y Quı́mica Fı́sica/INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab. II, Buenos Aires C1428EHA, Argentina
| | - Yamila A Perez Sirkin
- Departamento de Quı́mica Inorgánica, Analı́tica y Quı́mica Fı́sica/INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab. II, Buenos Aires C1428EHA, Argentina
| | - Valeria Molinero
- Department of Chemistry, The University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-0850, United States
| | - Damian A Scherlis
- Departamento de Quı́mica Inorgánica, Analı́tica y Quı́mica Fı́sica/INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab. II, Buenos Aires C1428EHA, Argentina
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37
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Lan G, Nong J, Wei W, Liu X, Luo P, Jin W, Wei D, Wei D. Highly stable all-in-one photoelectrochemical electrodes based on carbon nanowalls. NANOTECHNOLOGY 2020; 31:335401. [PMID: 32330907 DOI: 10.1088/1361-6528/ab8cf5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Photoelectrochemical (PEC) cells offer a promising approach for developing low-cost solar energy conversion systems. However, the lack of stable and cost-effective electrodes remains a bottleneck that hampers their practical applications. Here, we propose a kind of integrated all-in-one three-dimensional (3D) carbon nanowall (CNW) electrode without sensitized semiconductors for stable all-carbon PEC cells. The all-in-one CNW electrodes were fabricated by directly growing CNW on both sides of the SiO2/Si/SiO2 wafer employing the radio frequency plasmon enhanced chemical vapor deposition method. Benefitting from the interconnected 3D textured structure, the CNW can effectively absorb the incident light and provide a large electrochemical reaction interface at the CNW surface that promotes the separation of photogenerated charge carriers, which makes it a superior electrode material. Experimental results show that the all-in-one CNW electrodes possess excellent PEC performance with a photocurrent density of 830 μA cm-2. Moreover, the CNW electrodes exhibit excellent photoresponses over a wide waveband and superior stability with a maintained photocurrent response, even after 60 d, which outperforms the electrodes using the other two-dimensional layered materials or semiconductor sensitized electrodes. Such an all-in-one electrode with impressive photovoltaic properties provides a promising platform for PEC applications that is eco-friendly with high efficiency, excellent stability and low cost.
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Affiliation(s)
- Guilian Lan
- Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, People's Republic of China. Chongqing Key Laboratory of Multi-scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, People's Republic of China
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38
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Fu HC, Varadhan P, Lin CH, He JH. Spontaneous solar water splitting with decoupling of light absorption and electrocatalysis using silicon back-buried junction. Nat Commun 2020; 11:3930. [PMID: 32764537 PMCID: PMC7411053 DOI: 10.1038/s41467-020-17660-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 06/30/2020] [Indexed: 12/05/2022] Open
Abstract
Converting sunlight into a storable form of energy by spontaneous water splitting is of great interest but the difficulty in simultaneous management of optical, electrical, and catalytic properties has limited the efficiency of photoelectrochemical (PEC) devices. Herein, we implemented a decoupling scheme of light harvesting and electrocatalysis by employing a back-buried junction (BBJ) PEC cell design, which enables >95% front side light-harvesting, whereas the electrochemical reaction in conjunction with carrier separation/transport/collection occurs on the back side of the PEC cell. The resultant silicon BBJ-PEC half-cell produces a current density of 40.51 mA cm−2 for hydrogen evolution by minimizing optical, electrical, and catalytic losses (as low as 6.11, 1.76, and 1.67 mA cm−2, respectively). Monolithic fabrication also enables three BBJ-PEC cells to be connected in series as a single module, enabling unassisted solar water-splitting with a solar-to-hydrogen conversion efficiency of 15.62% and a hydrogen generation rate of 240 μg cm−2 h−1. The simultaneous management of optical, electrical, and catalytic properties is challenging for photoelectrochemical devices. Here, authors design Si back-buried junction photoelectrodes that can be series connected for unassisted water-splitting with a high solar-to-hydrogen efficiency of 15.62%.
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Affiliation(s)
- Hui-Chun Fu
- Computer, Electrical, and Mathematical Sciences and Engineering, King Abdullah University of Science and Technology, (KAUST), Thuwal, 23955-6900, Saudi Arabia.,KAUST Solar Center, KAUST, Thuwal, 23955-6900, Saudi Arabia.,Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR
| | - Purushothaman Varadhan
- Computer, Electrical, and Mathematical Sciences and Engineering, King Abdullah University of Science and Technology, (KAUST), Thuwal, 23955-6900, Saudi Arabia.,KAUST Solar Center, KAUST, Thuwal, 23955-6900, Saudi Arabia
| | - Chun-Ho Lin
- Computer, Electrical, and Mathematical Sciences and Engineering, King Abdullah University of Science and Technology, (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Jr-Hau He
- Computer, Electrical, and Mathematical Sciences and Engineering, King Abdullah University of Science and Technology, (KAUST), Thuwal, 23955-6900, Saudi Arabia. .,KAUST Solar Center, KAUST, Thuwal, 23955-6900, Saudi Arabia. .,Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR.
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39
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Zong W, Rao D, Guo H, Ouyang Y, Miao YE, Wang W, Wang J, Lai F, Liu T. Gradient phosphorus-doping engineering and superficial amorphous reconstruction in NiFe 2O 4 nanoarrays to enhance the oxygen evolution electrocatalysis. NANOSCALE 2020; 12:10977-10986. [PMID: 32420574 DOI: 10.1039/d0nr01496f] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A better solid-liquid-gas three-phase boundary is vital for low energy cost oxygen evolution reaction (OER), making the designed regulation of interfacial atmosphere necessary. Herein, we find that the OER electrocatalysis can be dramatically improved by synergistically forming disordered electronic structures and superficial amorphous layers, as superficial oxyhydroxide, phosphorus-doped NiFe2O4 nanoarrays on nitrogen-doped carbon nanofibers (OP-NiFe2O4/NCNFs). Unveiled by the depth-profiling analysis from the X-ray photoelectron spectroscopy, the contents of phosphorous doping in the OP-NiFe2O4 nanoarrays change dynamically from outside to inside due to its in situ superficial reconstruction into the oxyhydroxide layer, thereby accelerating electron transfer between heterogeneous phases. As revealed by density functional theory calculations, this amorphous oxyhydroxide layer and dynamically varied phosphorous content would positively shift the d-band center of the NiFe2O4-related compounds, leading to lower adsorption energy towards water molecule. Thus, the OP-NiFe2O4/NCNF electrocatalyst displays a low overpotential of 260 mV at a current density of 10 mA cm-2 and a small Tafel slope of 44.8 mV dec-1 in an alkaline medium.
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Affiliation(s)
- Wei Zong
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, P. R. China.
| | - Dewei Rao
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
| | - Hele Guo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, P. R. China.
| | - Yue Ouyang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, P. R. China.
| | - Yue-E Miao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, P. R. China.
| | - Wei Wang
- Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Space and Environment, Beihang University, Beijing, 100191, PR China
| | - Jing Wang
- School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Feili Lai
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, Leuven 3001, Belgium.
| | - Tianxi Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, P. R. China.
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Myekhlai M, Benedetti TM, Gloag L, Gonçales VR, Cheong S, Chen H, Gooding JJ, Tilley RD. Increasing the Formation of Active Sites on Highly Crystalline Co Branched Nanoparticles for Improved Oxygen Evolution Reaction Electrocatalysis. ChemCatChem 2020. [DOI: 10.1002/cctc.202000224] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Munkhshur Myekhlai
- School of Chemistry University of New South Wales Sydney New South Wales 2052 Australia
| | - Tania M. Benedetti
- School of Chemistry University of New South Wales Sydney New South Wales 2052 Australia
| | - Lucy Gloag
- School of Chemistry University of New South Wales Sydney New South Wales 2052 Australia
| | - Vinicius R. Gonçales
- School of Chemistry University of New South Wales Sydney New South Wales 2052 Australia
| | - Soshan Cheong
- Electron Microscope Unit Mark Wainwright Analytical Centre University of New South Wales Sydney New South Wales 2052 Australia
| | - Hsiang‐Sheng Chen
- School of Chemistry University of New South Wales Sydney New South Wales 2052 Australia
| | - J. Justin Gooding
- School of Chemistry University of New South Wales Sydney New South Wales 2052 Australia
- Australian Research Council Centre of Excellence in Convergent Bio-Nano Science and Technology University of New South Wales Sydney New South Wales 2052 Australia
| | - Richard D. Tilley
- School of Chemistry University of New South Wales Sydney New South Wales 2052 Australia
- Electron Microscope Unit Mark Wainwright Analytical Centre University of New South Wales Sydney New South Wales 2052 Australia
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41
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Jung JY, Kim DW, Shinde SS, Kim SH, Kim DH, Lin C, Park TJ, Lee JH. Bipolar Energetics and Bifunctional Catalytic Activity of a Nanocrystalline Ru Thin-Film Enable High-Performance Photoelectrochemical Water Reduction and Oxidation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:16402-16410. [PMID: 32183516 DOI: 10.1021/acsami.0c00367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Photoelectrochemical (PEC) cells, which represent a promising technology for the production of hydrogen fuel through water splitting reactions, must meet two criteria to achieve high-performance operation: (i) a high thermodynamic open-circuit potential and (ii) a low kinetic overpotential. Herein, we achieved these criteria in both an oxygen-evolving n-Si photoanode and hydrogen-evolving p-Si photocathode by simple electrodeposition of a nanocrystalline thin film of Ru. The bifunctional electrocatalytic activity of the nanocrystalline Ru led to low overpotentials in both the acidic oxygen evolution reaction (0.27 V) and alkaline hydrogen evolution reaction (0.04 V). In addition, the nanocrystalline Ru/Si junctions influenced the interface energetics via the induction of an extrinsic electrochemical potential on the surface of the Ru nanocrystals through a redox reaction rather than the chemical potential of the electrons (work function) of bulk Ru. The nanocrystalline Ru film exhibited bipolar applicability, enabling both Ru/n-Si and Ru/p-Si junctions with high Voc values of 0.63 and 0.5 V, respectively. As a result, the n-Si photoanode in the acidic electrolyte and the p-Si photocathode in the alkaline electrolyte generated a photocurrent of 10 mA/cm2 at record values of 0.87 and 0.42 V versus the reversible hydrogen electrode, respectively. These results provide insight into the development of high-performance PEC cells based on a nanocrystalline electrocatalyst.
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Affiliation(s)
- Jin-Young Jung
- Departments of Materials Science and Chemical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Kyeonggi-do 15588, Republic of Korea
| | - Dae Woong Kim
- Departments of Materials Science and Chemical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Kyeonggi-do 15588, Republic of Korea
| | - Sambhaji S Shinde
- Departments of Materials Science and Chemical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Kyeonggi-do 15588, Republic of Korea
| | - Sung-Hae Kim
- Departments of Materials Science and Chemical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Kyeonggi-do 15588, Republic of Korea
| | - Dong-Hyung Kim
- Departments of Materials Science and Chemical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Kyeonggi-do 15588, Republic of Korea
| | - Chao Lin
- Departments of Materials Science and Chemical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Kyeonggi-do 15588, Republic of Korea
| | - Tae Joo Park
- Departments of Materials Science and Chemical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Kyeonggi-do 15588, Republic of Korea
| | - Jung-Ho Lee
- Departments of Materials Science and Chemical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Kyeonggi-do 15588, Republic of Korea
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Thalluri SM, Bai L, Lv C, Huang Z, Hu X, Liu L. Strategies for Semiconductor/Electrocatalyst Coupling toward Solar-Driven Water Splitting. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1902102. [PMID: 32195077 PMCID: PMC7080548 DOI: 10.1002/advs.201902102] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 12/20/2019] [Indexed: 05/09/2023]
Abstract
Hydrogen (H2) has a significant potential to enable the global energy transition from the current fossil-dominant system to a clean, sustainable, and low-carbon energy system. While presently global H2 production is predominated by fossil-fuel feedstocks, for future widespread utilization it is of paramount importance to produce H2 in a decarbonized manner. To this end, photoelectrochemical (PEC) water splitting has been proposed to be a highly desirable approach with minimal negative impact on the environment. Both semiconductor light-absorbers and hydrogen/oxygen evolution reaction (HER/OER) catalysts are essential components of an efficient PEC cell. It is well documented that loading electrocatalysts on semiconductor photoelectrodes plays significant roles in accelerating the HER/OER kinetics, suppressing surface recombination, reducing overpotentials needed to accomplish HER/OER, and extending the operational lifetime of semiconductors. Herein, how electrocatalyst coupling influences the PEC performance of semiconductor photoelectrodes is outlined. The focus is then placed on the major strategies developed so far for semiconductor/electrocatalyst coupling, including a variety of dry processes and wet chemical approaches. This Review provides a comprehensive account of advanced methodologies adopted for semiconductor/electrocatalyst coupling and can serve as a guideline for the design of efficient and stable semiconductor photoelectrodes for use in water splitting.
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Affiliation(s)
| | - Lichen Bai
- Laboratory of Inorganic Synthesis & CatalysisEcole Polytechnique Federale de LausanneEPFL ISIC LSCI, BCH 3305CH‐1015LausanneSwitzerland
| | - Cuncai Lv
- School of Chemical Science & EngineeringTongji University200092ShanghaiP. R. China
- College of Physics Science & TechnologyHebei University071002BaodingHebeiP. R. China
| | - Zhipeng Huang
- School of Chemical Science & EngineeringTongji University200092ShanghaiP. R. China
| | - Xile Hu
- Laboratory of Inorganic Synthesis & CatalysisEcole Polytechnique Federale de LausanneEPFL ISIC LSCI, BCH 3305CH‐1015LausanneSwitzerland
| | - Lifeng Liu
- International Iberian Nanotechnology Laboratory (INL)Avenida Mestre Jose Veiga4715‐330BragaPortugal
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Pan S, Mao X, Yu J, Hao L, Du A, Li B. Remarkably improved oxygen evolution reaction activity of cobalt oxides by an Fe ion solution immersion process. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00385a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Fe ion-treated cobalt oxides were synthesized for the oxygen evolution reaction. Both theory and experiment confirm that the catalytic activity of cobalt oxides was significantly enhanced by Fe ions.
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Affiliation(s)
- Shencheng Pan
- School of Physics and Electronic Information
- Huaibei Normal University
- Huaibei 235000
- P. R. China
| | - Xin Mao
- School of Chemistry and Physics and Center for Materials Science
- Queensland University of Technology
- Gardens Point Campus
- Brisbane
- Australia
| | - Juan Yu
- School of Physics and Electronic Information
- Huaibei Normal University
- Huaibei 235000
- P. R. China
| | - Lin Hao
- Department of Physics and Astronomy
- University of Tennessee
- Knoxville
- USA
| | - Aijun Du
- School of Chemistry and Physics and Center for Materials Science
- Queensland University of Technology
- Gardens Point Campus
- Brisbane
- Australia
| | - Bing Li
- School of Physics and Electronic Information
- Huaibei Normal University
- Huaibei 235000
- P. R. China
- Department of Physics and Astronomy
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44
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Ma X, Zhao K, Sun Y, Wang Y, Yan F, Zhang X, Chen Y. Direct observation of chemical origins in crystalline (Ni xCo 1−x) 2B oxygen evolution electrocatalysts. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00099j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A crystalline bimetal (Ni0.75Co0.25)2B catalyst synthesized by a simple ball-milling method exhibits excellent OER activity, and the special roles of Co and Ni were accurately certified by CV cycling on hydrophobic and hydrophilic electrodes.
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Affiliation(s)
- Xinzhi Ma
- College of Physics and Optoelectronic Engineering
- Harbin Engineering University
- Harbin 150001
- China
- Key Laboratory for Photonic and Electronic Bandgap Materials
| | - Kaixin Zhao
- Key Laboratory for Photonic and Electronic Bandgap Materials
- Ministry of Education and School of Physics and Electronic Engineering
- Harbin Normal University
- Harbin 150025
- China
| | - Yu Sun
- College of Physics and Optoelectronic Engineering
- Harbin Engineering University
- Harbin 150001
- China
| | - Yue Wang
- College of Physics and Optoelectronic Engineering
- Harbin Engineering University
- Harbin 150001
- China
| | - Feng Yan
- College of Physics and Optoelectronic Engineering
- Harbin Engineering University
- Harbin 150001
- China
| | - Xitian Zhang
- Key Laboratory for Photonic and Electronic Bandgap Materials
- Ministry of Education and School of Physics and Electronic Engineering
- Harbin Normal University
- Harbin 150025
- China
| | - Yujin Chen
- College of Physics and Optoelectronic Engineering
- Harbin Engineering University
- Harbin 150001
- China
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45
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Guo D, Kang H, Wei P, Yang Y, Hao Z, Zhang Q, Liu L. A high-performance bimetallic cobalt iron oxide catalyst for the oxygen evolution reaction. CrystEngComm 2020. [DOI: 10.1039/d0ce00401d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Herein, a facile solvothermal approach was designed to produce the CoFe2O4 nanospheres with unique porous structure. As an efficient electrocatalyst for OER, the CoFe2O4 nanospheres performed high performance.
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Affiliation(s)
- Donggang Guo
- College of Environment and Resource
- Shanxi University
- Taiyuan
- China
| | - Hongzhi Kang
- College of Environment and Resource
- Shanxi University
- Taiyuan
- China
| | - Pengkun Wei
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control
- College of Environmental Science and Engineering
- Nankai University
- Tianjin
- China
| | - Yang Yang
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control
- College of Environmental Science and Engineering
- Nankai University
- Tianjin
- China
| | - Zewei Hao
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control
- College of Environmental Science and Engineering
- Nankai University
- Tianjin
- China
| | - Quanxi Zhang
- College of Environment and Resource
- Shanxi University
- Taiyuan
- China
| | - Lu Liu
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control
- College of Environmental Science and Engineering
- Nankai University
- Tianjin
- China
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46
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Jung JY, Kim SH, Shinde SS, Kim DH, Lin C, Lee JH. A semiconductor junction photoelectrochemical device without a depletion region. NANOSCALE 2019; 11:23013-23020. [PMID: 31769774 DOI: 10.1039/c9nr08172k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Semiconductor junctions are believed to form a depletion region at the band edge of the semiconductor as the chemical potentials for electrons (work functions) are aligned to the same level. Here, we demonstrated that ultrathin Ni film (less than 4 nm thick)/Si junction-based photoelectrochemical (PEC) devices have no depletion region due to three distinct phenomena: (i) the electrostatic or electrochemical potential extrinsically charged to the electrolytic-capacitive Ni surface dominates rather than the chemical potential of electrons (work function) of the bulk Ni, (ii) the charged potential is dynamically variable depending on the reaction and is rapidly volatile so as not to be constant; therefore, (iii) the charged potential is misaligned with the chemical potential of Si under equivalent circuit conditions. Such junction PEC devices were shown to follow a novel operating principle in which the output voltage (open circuit potential) is generated by the electrochemical potential charged at the Ni surface, and not by the light-induced potential (photovoltage) in Si. In addition, due to the bipolar charging nature, the ultrathin Ni film was effective in achieving a high open circuit potential in both p-Si photocathodes (0.57 V) and n-Si photoanodes (0.45 V). These anomalous results were not explained by the classical Schottky diode model based on the equilibrium of diffusion-drift current but by establishing a new model based on the equilibrium of the diffusion-charging current without accounting for the depletion region. Our findings provide an explanation for the unexpected results of the nanostructured PEC devices and insight into a new design that can overcome conventional limitations.
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Affiliation(s)
- Jin-Young Jung
- Department of Materials Science and Chemical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Kyeonggi-do 15588, Republic of Korea.
| | - Sung-Hae Kim
- Department of Materials Science and Chemical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Kyeonggi-do 15588, Republic of Korea.
| | - Sambhaji S Shinde
- Department of Materials Science and Chemical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Kyeonggi-do 15588, Republic of Korea.
| | - Dong-Hyung Kim
- Department of Materials Science and Chemical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Kyeonggi-do 15588, Republic of Korea.
| | - Chao Lin
- Department of Materials Science and Chemical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Kyeonggi-do 15588, Republic of Korea.
| | - Jung-Ho Lee
- Department of Materials Science and Chemical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Kyeonggi-do 15588, Republic of Korea.
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47
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Lee SA, Lee TH, Kim C, Choi MJ, Park H, Choi S, Lee J, Oh J, Kim SY, Jang HW. Amorphous Cobalt Oxide Nanowalls as Catalyst and Protection Layers on n-Type Silicon for Efficient Photoelectrochemical Water Oxidation. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03899] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sol A. Lee
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul 08826, Republic of Korea
| | - Tae Hyung Lee
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul 08826, Republic of Korea
| | - Changyeon Kim
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul 08826, Republic of Korea
| | - Min-Ju Choi
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul 08826, Republic of Korea
| | - Hoonkee Park
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul 08826, Republic of Korea
| | - Seokhoon Choi
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul 08826, Republic of Korea
| | - Jinwoo Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Jihun Oh
- Graduate School of Energy, Environment, Water and Sustainability, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Soo Young Kim
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Ho Won Jang
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul 08826, Republic of Korea
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48
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Zhou W, Fan R, Hu T, Huang G, Dong W, Wu X, Shen M. 5.1% efficiency of Si photoanodes for photoelectrochemical water splitting catalyzed by porous NiFe (oxy)hydroxide converted from NiFe oxysulfide. Chem Commun (Camb) 2019; 55:12627-12630. [PMID: 31580342 DOI: 10.1039/c9cc06413c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A porous NiFe (oxy)hydroxide catalyst fabricated on n+pp+-Si/Ni/NiOx, which is converted from an electrodeposited NiFe oxysulfide, allows a silicon photoanode for water splitting to hit a record 5.1% efficiency with good stability of up to 135 h under 40 mA cm-2 in 1.0 M NaOH.
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Affiliation(s)
- Wanyi Zhou
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, 1 Shizi street, Suzhou 215006, China.
| | - Ronglei Fan
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, 1 Shizi street, Suzhou 215006, China.
| | - Taozheng Hu
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, 1 Shizi street, Suzhou 215006, China.
| | - Guanping Huang
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, 1 Shizi street, Suzhou 215006, China.
| | - Weng Dong
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, 1 Shizi street, Suzhou 215006, China.
| | - Xi Wu
- College of Energy, Soochow University, 1 Shizi street, Suzhou 215006, China.
| | - Mingrong Shen
- School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, 1 Shizi street, Suzhou 215006, China.
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49
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Kraushofer F, Mirabella F, Xu J, Pavelec J, Balajka J, Müllner M, Resch N, Jakub Z, Hulva J, Meier M, Schmid M, Diebold U, Parkinson GS. Self-limited growth of an oxyhydroxide phase at the Fe3O4(001) surface in liquid and ambient pressure water. J Chem Phys 2019; 151:154702. [DOI: 10.1063/1.5116652] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Florian Kraushofer
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10, 1040 Vienna, Austria
| | - Francesca Mirabella
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10, 1040 Vienna, Austria
| | - Jian Xu
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10, 1040 Vienna, Austria
- Department of Metallurgical Engineering, College of Materials Science and Engineering, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing 400044, China
| | - Jiří Pavelec
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10, 1040 Vienna, Austria
| | - Jan Balajka
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10, 1040 Vienna, Austria
| | - Matthias Müllner
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10, 1040 Vienna, Austria
| | - Nikolaus Resch
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10, 1040 Vienna, Austria
| | - Zdeněk Jakub
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10, 1040 Vienna, Austria
| | - Jan Hulva
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10, 1040 Vienna, Austria
| | - Matthias Meier
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10, 1040 Vienna, Austria
| | - Michael Schmid
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10, 1040 Vienna, Austria
| | - Ulrike Diebold
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10, 1040 Vienna, Austria
| | - Gareth S. Parkinson
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10, 1040 Vienna, Austria
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Rongé J, Dobbelaere T, Henderick L, Minjauw MM, Sree SP, Dendooven J, Martens JA, Detavernier C. Bifunctional earth-abundant phosphate/phosphide catalysts prepared via atomic layer deposition for electrocatalytic water splitting. NANOSCALE ADVANCES 2019; 1:4166-4172. [PMID: 36132102 PMCID: PMC9419003 DOI: 10.1039/c9na00391f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 09/20/2019] [Indexed: 06/11/2023]
Abstract
The development of active and stable earth-abundant catalysts for hydrogen and oxygen evolution is one of the requirements for successful production of solar fuels. Atomic Layer Deposition (ALD) is a proven technique for conformal coating of structured (photo)electrode surfaces with such electrocatalyst materials. Here, we show that ALD can be used for the deposition of iron and cobalt phosphate electrocatalysts. A PE-ALD process was developed to obtain cobalt phosphate films without the need for a phosphidation step. The cobalt phosphate material acts as a bifunctional catalyst, able to also perform hydrogen evolution after either a thermal or electrochemical reduction step.
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Affiliation(s)
- Jan Rongé
- Centre for Surface Chemistry and Catalysis, KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Thomas Dobbelaere
- Department of Solid State Sciences, Ghent University Krijgslaan 281 S1 9000 Gent Belgium
| | - Lowie Henderick
- Department of Solid State Sciences, Ghent University Krijgslaan 281 S1 9000 Gent Belgium
| | - Matthias M Minjauw
- Department of Solid State Sciences, Ghent University Krijgslaan 281 S1 9000 Gent Belgium
| | | | - Jolien Dendooven
- Department of Solid State Sciences, Ghent University Krijgslaan 281 S1 9000 Gent Belgium
| | - Johan A Martens
- Centre for Surface Chemistry and Catalysis, KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Christophe Detavernier
- Department of Solid State Sciences, Ghent University Krijgslaan 281 S1 9000 Gent Belgium
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