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Song XZ, Zhang T, Zhao YH, Ni JC, Pan Y, Tan Z, Wang XF. Heterostructure Interface Engineering in CoP/FeP/CeO x with a Tailored d-Band Center for Promising Overall Water Splitting Electrocatalysis. Inorg Chem 2023; 62:8347-8356. [PMID: 37200596 DOI: 10.1021/acs.inorgchem.3c00876] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Accomplishing a green hydrogen economy in reality through water spitting ultimately relies upon earth-abundant efficient electrocatalysts that can simultaneously accelerate the oxygen and hydrogen evolution reactions (OER and HER). The perspective of electronic structure modulation via interface engineering is of great significance to optimize electrocatalytic output but remains a tremendous challenge. Herein, an efficient tactic has been explored to prepare nanosheet-assembly tumbleweed-like CoFeCe-containing precursors with time-/energy-saving and easy-operating features. Subsequently, the final metal phosphide materials containing multiple interfaces, denoted CoP/FeP/CeOx, have been synthesized via the phosphorization process. Through the optimization of the Co/Fe ratio and the content of the rare-earth Ce element, the electrocatalytic activity has been regulated. As a result, bifunctional Co3Fe/Ce0.025 reaches the top of the volcano for both OER and HER simultaneously, with the smallest overpotentials of 285 mV (OER) and 178 mV (HER) at 10 mA cm-2 current density in an alkaline environment. Multicomponent heterostructure interface engineering would lead to more exposed active sites, feasible charge transport, and strong interfacial electronic interaction. More importantly, the appropriate Co/Fe ratio and Ce content can synergistically tailor the d-band center with a downshift to enhance the per-site intrinsic activity. This work would provide valuable insights to regulate the electronic structure of superior electrocatalysts toward water splitting by constructing rare-earth compounds containing multiple heterointerfaces.
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Affiliation(s)
- Xue-Zhi Song
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Tao Zhang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Yu-Hang Zhao
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Jing-Chang Ni
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Yu Pan
- Institute of Functional Textiles and Advanced Materials, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China
| | - Zhenquan Tan
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xiao-Feng Wang
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Ministry of Education, School of Physics, Dalian University of Technology, Dalian 116024, China
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Sun F, Yue C, Wang J, Liu Y, Bao W, Liu N, Tuo Y, Lu Y. Lacunary polyoxometalate oriented construction of dispersed Ni 3S 2 confined in WO 3 for electrocatalytic water splitting. J Colloid Interface Sci 2023; 645:188-199. [PMID: 37148684 DOI: 10.1016/j.jcis.2023.04.144] [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: 02/22/2023] [Revised: 04/18/2023] [Accepted: 04/26/2023] [Indexed: 05/08/2023]
Abstract
Manufacturing low-cost, high-performance and earth-rich catalysts for hydrogen evolution (HER) and oxygen evolution reactions (OER) is critical to achieving sustainable green hydrogen production. Herein, we utilize lacunary Keggin-structure [PW9O34]9- (PW9) as a molecular pre-assembly platform to anchor Ni within a single PW9 molecule by vacancy-directed and nucleophile-induced effects for the uniform dispersion of Ni at the atomic level. The chemical coordination of Ni with PW9 can avoid the aggregation of Ni and favor the exposure of active sites. The Ni3S2 confined by WO3 prepared from controlled sulfidation of Ni6PW9/Nickel Foam (Ni6PW9/NF) exhibited excellent catalytic activity in both 0.5 M H2SO4 and 1 M KOH solutions, which required only 86 mV and 107 mV overpotentials for HER at a current density of 10 mA∙cm-2 and 370 mV for OER at 200 mA∙cm-2. This is attributed to the good dispersion of Ni at the atomic level induced by trivacant PW9 and the enhanced intrinsic activity by synergistic effect of Ni and W. Therefore, the construction of active phase from the atomic level is insightful to the rational design of dispersed and efficient electrolytic catalysts.
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Affiliation(s)
- Fengyue Sun
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), 66 West Changjiang Road, Qingdao, Shandong 266580, China
| | - Changle Yue
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), 66 West Changjiang Road, Qingdao, Shandong 266580, China
| | - Jinjin Wang
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), 66 West Changjiang Road, Qingdao, Shandong 266580, China
| | - Yang Liu
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), 66 West Changjiang Road, Qingdao, Shandong 266580, China
| | - Wenjing Bao
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), 66 West Changjiang Road, Qingdao, Shandong 266580, China
| | - Na Liu
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), 66 West Changjiang Road, Qingdao, Shandong 266580, China
| | - Yongxiao Tuo
- College of New Energy, China University of Petroleum (East China), 66 West Changjiang Road, Qingdao, Shandong 266580, China.
| | - Yukun Lu
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), 66 West Changjiang Road, Qingdao, Shandong 266580, China.
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CoP@Ni core-shell heterostructure nanowire array: A highly efficient electrocatalyst for hydrogen evolution. J Colloid Interface Sci 2023; 637:354-362. [PMID: 36709592 DOI: 10.1016/j.jcis.2023.01.108] [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: 11/03/2022] [Revised: 01/12/2023] [Accepted: 01/22/2023] [Indexed: 01/26/2023]
Abstract
The inferior performance of non-precious metals on electrocatalytic hydrogen evolution can be mainly attributed to the inappropriate adsorption strength of intermediates. A core-shell heterostructure of CoP@Ni is developed by hydrothermal reaction, thermal phosphorization and subsequent electrodeposition, with metallic Ni supported by CoP nanowire array. The as-prepared CoP@Ni core-shell heterostructure nanowire array has a superior activity on hydrogen evolution in alkaline electrolyte, with an overpotential of 71 mV to drive 10 mA cm-2 and a Tafel slope of 66 mV dec-1. The electronic structure of CoP@Ni is tuned for modulating the adsorption strength of intermediates. The theoretical calculations reveal that CoP@Ni has metallic characteristics with a zero-bandgap, which leads to the promoted charge transfer. More importantly, the intrinsic activity of CoP@Ni is greatly increased, with a lower energy barrier in the reaction pathway. This work points out the importance of constructing the heterostructure for improving the intrinsic activity, which can pave the way to the exploration of high-performance and cost-effective electrocatalysts for hydrogen production.
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Wang H, Sun P, Jiang H, Li X, Ma X, Shao K, Wang C. Fe‐Doped Porous g‐C
3
N
4
: An Efficient Electrocatalyst with Fe‐N Active Sites for Electrocatalytic Hydrogen Evolution Reaction under Alkaline Conditions. ChemistrySelect 2022. [DOI: 10.1002/slct.202200306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hefang Wang
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 P. R. China
| | - Peidong Sun
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 P. R. China
| | - Hui Jiang
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 P. R. China
| | - Xiaobao Li
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 P. R. China
| | - Xiaofei Ma
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 P. R. China
| | - Kai Shao
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 P. R. China
| | - Cui Wang
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 P. R. China
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Li X, Xing J, Chen J, Liu C, Qi X. Promoting the Phosphidation Process using an Oxygen Vacancy Precursor for Efficient Hydrogen Evolution Reaction. Chem Asian J 2021; 16:3604-3609. [PMID: 34506068 DOI: 10.1002/asia.202100937] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 08/27/2021] [Indexed: 11/08/2022]
Abstract
Based on previous works, most of the transition metal phosphides (TMPs) were directly prepared by decomposing NaH2 PO2 with the precursors at high temperatures, which resulted in different degrees of phosphidation in the final product. Therefore, it is necessary to design an innovative approach to enhance the degree of phosphidation in the material using crystal defects. Here, oxygen-vacancy iron oxide/iron foam (Ov-Fe2 O3 /IF) was firstly prepared by generating oxygen vacancy in situ in an iron foam through heating in vacuum conditions. Subsequently, FeP/IF was formed by phosphating Ov-Fe2 O3 /IF. Under the effects of oxygen vacancies, oxygen-vacancy iron oxide could be completely phosphatized to produce more active sites on the surface of the material. This, in turn, could result in a catalyst with exceptional hydrogen evolution activity. Thus, the successful fabrication of FeP/IF demonstrated in this work provides an effective and feasible way for the preparation of other high-efficiency catalysts.
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Affiliation(s)
- Xiaoxiao Li
- College of Rare Earth, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China.,Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Jingbo Xing
- College of Rare Earth, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China.,Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Junwei Chen
- College of Rare Earth, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China.,Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Chao Liu
- College of Rare Earth, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China.,Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Xiaopeng Qi
- College of Rare Earth, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China.,Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
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Li F, Yuan Y, Feng X, Liu J, Chen S, Lin Y, Sun Y, Chen H, Zhao L, Song X, Zhang P, Gao L. Coating of Phosphide Catalysts on p-Silicon by a Necking Strategy for Improved Photoelectrochemical Characteristics in Alkaline Media. ACS APPLIED MATERIALS & INTERFACES 2021; 13:20185-20193. [PMID: 33878873 DOI: 10.1021/acsami.1c03620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The methodology of coating electrocatalysts on semiconductor substrates is critical for the catalytic performance of photoelectrochemical electrodes. A weakly bound coating leads to orders of magnitude lower efficiency and reliability compared to those required to meet the commercial demand. Herein, a facile strategy based on the hydrolysis of TiCl4 is developed to solve the coating issue. Mesoporous tungsten phosphide (WP) particles were spin-coated and affixed onto TiO2-protected planar p-Si by the formation of a TiO2 necking layer between the catalyst particles and the substrates. Under 1 sun illumination, the as-prepared WP/TiO2/Si photocathode yields a saturated current density of -35 mA cm-2 and a durability of over 110 h with a current density over -15 mA cm-2 at 0 V versus a reversible hydrogen electrode in a 1.0 M KOH solution, which is among the state-of-the-art performances of commercial planar Si-based photocathodes. The Kelvin probe force microscopy results suggest the successive transfer of photoelectrons from Si to TiO2 and WP. The as-formed TiO2 necking layer plays the key role in ensuring the surface catalytic activity and durability. This necking strategy is also applicable for coating other transition-metal phosphides, for example, MoP and FeP, thus offering a practical approach to meet the commercial requirement of low-cost, highly efficient, and durable photoelectrodes.
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Affiliation(s)
- Feng Li
- School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yanqi Yuan
- School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Xiaoqian Feng
- School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou, Liaoning 121001, China
| | - Jing Liu
- School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Sheng Chen
- Shanghai Huali Intergrated Circuit Corporation, No. 6 Liang Teng Road, Pudong New District, Shanghai 201314, China
| | - Yue Lin
- Cavendish Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, U.K
| | - Yanting Sun
- Department of Applied Physics, KTH-Royal Institute of Technology, Hannes Alfvéns väg 12, 11419 Stockholm, Sweden
| | - Han Chen
- School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Liping Zhao
- School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Xuefeng Song
- School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Peng Zhang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Lian Gao
- School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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Huang G, Zhang C, Liu Z, Yuan S, Yang G, Wang K, Li X, Li N, Jing S. Self‐Supported Mesoporous Iron Phosphide with High Active‐Site Density for Electrocatalytic Hydrogen Evolution in Acidic and Alkaline Media. ChemElectroChem 2020. [DOI: 10.1002/celc.202001306] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Guoqing Huang
- Key Laboratory of Automobile Materials of Ministry of Education School of Material Science and Engineering Jilin University 5988 Renmin Street Changchun 130022 P. R. China
| | - Cong Zhang
- Key Laboratory of Automobile Materials of Ministry of Education School of Material Science and Engineering Jilin University 5988 Renmin Street Changchun 130022 P. R. China
| | - Zhipeng Liu
- Key Laboratory of Automobile Materials of Ministry of Education School of Material Science and Engineering Jilin University 5988 Renmin Street Changchun 130022 P. R. China
| | - Shisheng Yuan
- Key Laboratory of Automobile Materials of Ministry of Education School of Material Science and Engineering Jilin University 5988 Renmin Street Changchun 130022 P. R. China
| | - Guohua Yang
- Key Laboratory of Automobile Materials of Ministry of Education School of Material Science and Engineering Jilin University 5988 Renmin Street Changchun 130022 P. R. China
| | - Kaiwen Wang
- Key Laboratory of Automobile Materials of Ministry of Education School of Material Science and Engineering Jilin University 5988 Renmin Street Changchun 130022 P. R. China
| | - Xiaotian Li
- Key Laboratory of Automobile Materials of Ministry of Education School of Material Science and Engineering Jilin University 5988 Renmin Street Changchun 130022 P. R. China
| | - Nan Li
- Key Laboratory of Automobile Materials of Ministry of Education School of Material Science and Engineering Jilin University 5988 Renmin Street Changchun 130022 P. R. China
| | - Shubo Jing
- College of Chemistry Jilin University 2699 Qianjin Street Changchun 130012 P. R. China
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