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Singh B, Gupta H. Metal-organic frameworks (MOFs) for hybrid water electrolysis: structure-property-performance correlation. Chem Commun (Camb) 2024. [PMID: 38994743 DOI: 10.1039/d4cc02729a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2024]
Abstract
Hybrid water electrolysis (HWE) is a promising pathway for the simultaneous production of high-value chemicals and clean H2 fuel. Unlike conventional electrochemical water splitting, which relies on the oxygen evolution reaction (OER), HWE involves the anodic oxidation reaction (AOR). The AORs facilitate the conversion of organic or inorganic compounds at the anode into valuable chemicals, while the cathode carries out the hydrogen evolution reaction (HER) to produce H2. Recent literature has witnessed a surge in papers investigating various AORs with organic and inorganic substrates using a series of transition metal-based catalysts. Over the past two decades, metal-organic frameworks (MOFs) have garnered significant attention for their exceptional performance in electrochemical water splitting. These catalysts possess distinct attributes such as highly porous architectures, customizable morphologies, open facets, high electrochemical surface areas, improved electron transport, and accessible catalytic sites. While MOFs have demonstrated efficiency in electrochemical water splitting, their application in hybrid water electrolysis has only recently been explored. In recent years, a series of articles have been published; yet there is no comprehensive article summarizing MOFs for hybrid water electrolysis. This article aims to fill this gap by delving into the recent progress in MOFs specifically tailored for hybrid water electrolysis. In this article, we systematically discuss the structure-property-performance relationships of various MOFs utilized in hybrid water electrolysis, supported by pioneering examples. We explore how the structure, morphology, and electronic properties of MOFs impact their performance in hybrid water electrolysis, with particular emphasis on value-added chemical generation, H2 production, potential improvement, conversion efficiency, selectivity, faradaic efficiency, and their potential for industrial-scale applications. Furthermore, we address future advancements and challenges in this field, providing insights into the prospects and challenges associated with the continued development and deployment of MOFs for hybrid water electrolysis.
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Affiliation(s)
- Baghendra Singh
- Southern Laboratories - 208A, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, India.
| | - Harshit Gupta
- Department of Chemistry, University of Delhi, Delhi-110007, India
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2
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Yang G, Peng W, Chen Z, Li S, Han Q, Hu R, Yuan B. In Situ Construction of Biphasic Boride Electrocatalysts on Dealloyed Bulk Ni-Mo Alloy as Self-Supporting Electrode for Water Splitting at High Current Density. ACS APPLIED MATERIALS & INTERFACES 2024; 16:28578-28589. [PMID: 38797977 DOI: 10.1021/acsami.4c04157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Nickel-molybdenum-boron (Ni-Mo-B)-based catalysts with biphasic interfaces are highly advantageous in bifunctional electrocatalytic activity in alkaline water-splitting. However, it remains an ongoing challenge to obtain porous Ni-Mo alloy substrates that provide stable adhesion to catalysts, ensuring the long-term performance of bifunctional self-supporting electrodes at a high current density. Herein, a porous Ni-Mo alloy substrate was effectively obtained by a cost-effective dealloying process on a commercial Ni-Mo alloy with high-energy crystal planes. Subsequently, the Mo2NiB2/Ni3B bifunctional catalyst was in situ synthesized on this substrate via boriding heat treatment, resulting in outstanding catalytic activity and stability. Density functional theory (DFT) calculations reveal that the abundant biphasic interfaces and surface-reconstructed sites of the Mo2NiB2/Ni3B catalyst can decrease the energy barriers for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), respectively. Thus, the designed self-supporting electrodes show bifunctional catalytic activity with overpotentials of 151 mV for HER and 260 mV for OER at a current density of 10 mA cm-2. Markedly, the assembled water electrolyzer can be driven up to 10 mA cm-2 at 1.64 V and maintain catalytic activity at a high current density of 1000 mA cm-2 for 100 h. The new strategy is expected to provide a low-cost scheme for designing self-supporting bifunctional electrodes with high activity and excellent stability and contribute to the development of hydrogen energy technology.
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Affiliation(s)
- Guangyao Yang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P.R. China
- Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, Guangzhou 510640, P.R. China
| | - Weiliang Peng
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P.R. China
- Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, Guangzhou 510640, P.R. China
| | - Zhipeng Chen
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P.R. China
- Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, Guangzhou 510640, P.R. China
| | - Shaobo Li
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P.R. China
- Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, Guangzhou 510640, P.R. China
| | - Qiying Han
- Guangdong Province Waste Lithium Battery Clean Regeneration Engineering Technology Research Center, Zhaoqing 526116, P.R. China
- Guangdong Jinsheng New Energy Co., Ltd., Zhaoqing 526116, P.R. China
| | - Renzong Hu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P.R. China
- Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, Guangzhou 510640, P.R. China
- Guangdong Province Waste Lithium Battery Clean Regeneration Engineering Technology Research Center, Zhaoqing 526116, P.R. China
| | - Bin Yuan
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P.R. China
- Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, Guangzhou 510640, P.R. China
- Guangdong Province Waste Lithium Battery Clean Regeneration Engineering Technology Research Center, Zhaoqing 526116, P.R. China
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3
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Zhu S, Li Y, Yang M, Xu H, Cheng L, Fang F, Huang Q, Ying B. Extraordinary Structural Reconstruction of Nanolaminated Ta 2FeC MAX Phase for Enhanced Oxygen Evolution Performance. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401022. [PMID: 38809081 DOI: 10.1002/smll.202401022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 04/01/2024] [Indexed: 05/30/2024]
Abstract
Renewable energy technologies, such as water splitting, heavily depend on the oxygen evolution reaction (OER). Nanolaminated ternary compounds, referred to as MAX phases, show great promise for creating efficient electrocatalysts for OER. However, their limited intrinsic oxidative resistance hinders the utilization of conductivity in Mn+1Xn layers, leading to reduced activity. In this study, a method is proposed to improve the poor inoxidizability of MAX phases by carefully adjusting the elemental composition between Mn+1Xn layers and single-atom-thick A layers. The resulting Ta2FeC catalyst demonstrates superior performance compared to conventional Fe/C-based catalysts with a remarkable record-low overpotential of 247 mV (@10 mA cm-2) and sustained activity for over 240 h. Notably, during OER processing, the single-atom-thick Fe layer undergoes self-reconstruction and enrichment from the interior of the Ta2FeC MAX phase toward its surface, forming a Ta2FeC@Ta2C@FeOOH heterostructure. Through density functional theory (DFT) calculations, this study has found that the incorporation of Ta2FeC@Ta2C not only enhances the conductivity of FeOOH but also reduces the covalency of Fe─O bonds, thus alleviating the oxidation of Fe3+ and O2-. This implies that the Ta2FeC@Ta2C@FeOOH heterostructure experiences less lattice oxygen loss during the OER process compared to pure FeOOH, leading to significantly improved stability. These results highlight promising avenues for further exploration of MAX phases by strategically engineering M- and A-site engineering through multi-metal substitution, to develop M2AX@M2X@AOOH-based catalysts for oxygen evolution.
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Affiliation(s)
- Shuairu Zhu
- Department of Laboratory Medicine/Clinical Laboratory Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
- Sichuan Clinical Research Center for Laboratory Medicine, Chengdu, Sichuan, 610041, China
- Zhejiang Institute of Tianjin University, Ningbo, Zhejiang, 315201, China
| | - Youbing Li
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Mei Yang
- Department of Laboratory Medicine/Clinical Laboratory Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
- Sichuan Clinical Research Center for Laboratory Medicine, Chengdu, Sichuan, 610041, China
| | - Hongwei Xu
- Department of Laboratory Medicine/Clinical Laboratory Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
- Sichuan Clinical Research Center for Laboratory Medicine, Chengdu, Sichuan, 610041, China
| | - Lijuan Cheng
- Zhejiang Institute of Tianjin University, Ningbo, Zhejiang, 315201, China
| | - Fei Fang
- College of Digital Technology and Engineering, Ningbo University of Finance and Economics, Ningbo, Zhejiang, 315201, China
| | - Qing Huang
- Zhejiang Key Laboratory of Data-Driven High-Safety Energy Materials and Applications, Ningbo Key Laboratory of Special Energy Materials and Chemistry, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, China
- Qianwan Institute of CNiTECH, Ningbo, Zhejiang, 315336, China
| | - Binwu Ying
- Department of Laboratory Medicine/Clinical Laboratory Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
- Sichuan Clinical Research Center for Laboratory Medicine, Chengdu, Sichuan, 610041, China
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4
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Lee WS, Maeda H, Kuo YT, Muraoka K, Fukui N, Takada K, Sasaki S, Masunaga H, Nakayama A, Tian HK, Nishihara H, Sakaushi K. Spontaneous-Spin-Polarized 2D π-d Conjugated Frameworks Towards Enhanced Oxygen Evolution Kinetics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401987. [PMID: 38805737 DOI: 10.1002/smll.202401987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 04/30/2024] [Indexed: 05/30/2024]
Abstract
Alternative strategies to design sustainable-element-based electrocatalysts enhancing oxygen evolution reaction (OER) kinetics are demanded to develop affordable yet high-performance water-electrolyzers for green hydrogen production. Here, it is demonstrated that the spontaneous-spin-polarized 2D π-d conjugated framework comprising abundant elements of nickel and iron with a ratio of Ni:Fe = 1:4 with benzenehexathiol linker (BHT) can improve OER kinetics by its unique electronic property. Among the bimetallic NiFex:y-BHTs with various ratios with Ni:Fe = x:y, the NiFe1:4-BHT exhibits the highest OER activity. The NiFe1:4-BHT shows a specific current density of 140 A g-1 at the overpotential of 350 mV. This performance is one of the best activities among state-of-the-art non-precious OER electrocatalysts and even comparable to that of the platinum-group-metals of RuO2 and IrO2. The density functional theory calculations uncover that introducing Ni into the homometallic Fe-BHT (e.g., Ni:Fe = 0:1) can emerge a spontaneous-spin-polarized state. Thus, this material can achieve improved OER kinetics with spin-polarization which previously required external magnetic fields. This work shows that a rational design of 2D π-d conjugated frameworks can be a powerful strategy to synthesize promising electrocatalysts with abundant elements for a wide spectrum of next-generation energy devices.
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Affiliation(s)
- Won Seok Lee
- Research Center for Energy and Environmental Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Hiroaki Maeda
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Yen-Ting Kuo
- Department of Chemical Engineering, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Koki Muraoka
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Naoya Fukui
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Kenji Takada
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Sono Sasaki
- Faculty of Fiber Science and Engineering, Kyoto Institute of Technology, Matsugasaki Hashikami-cho 1, Sakyo-ku, Kyoto, 606-8585, Japan
- SPring-8 Center, RIKEN, Kouto 1-1-1, Sayo-cho, Sayo-gun, Hyogo, 679-5148, Japan
| | - Hiroyasu Masunaga
- Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198, Japan
| | - Akira Nakayama
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Hong-Kang Tian
- Department of Chemical Engineering, National Cheng Kung University, Tainan, 70101, Taiwan
- Hierarchical Green-Energy Materials (Hi-GEM) Research Center, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Hiroshi Nishihara
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Ken Sakaushi
- Research Center for Energy and Environmental Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
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5
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Zhang P, Liu S, Zhou J, Zhou L, Li B, Li S, Wu X, Chen Y, Li X, Sheng X, Liu Y, Jiang J. Co-Adjusting d-Band Center of Fe to Accelerate Proton Coupling for Efficient Oxygen Electrocatalysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307662. [PMID: 38072770 DOI: 10.1002/smll.202307662] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/16/2023] [Indexed: 05/18/2024]
Abstract
The problem in d-band center modulation of transition metal-based catalysts for the rate-determining steps of oxygen conversion is an obstacle to boost the electrocatalytic activity by accelerating proton coupling. Herein, the Co doping to FeP is adopted to modify the d-band center of Fe. Optimized Fe sites accelerate the proton coupling of oxygen reduction reaction (ORR) on N-doped wood-derived carbon through promoting water dissociation. In situ generated Fe sites optimize the adsorption of oxygen-related intermediates of oxygen evolution reaction (OER) on CoFeP NPs. Superior catalytic activity toward ORR (half-wave potential of 0.88 V) and OER (overpotential of 300 mV at 10 mA cm-2) express an unprecedented level in carbon-based transition metal-phosphide catalysts. The liquid zinc-air battery presents an outstanding cycling stability of 800 h (2400 cycles). This research offers a newfangled perception on designing highly efficient carbon-based bifunctional catalysts for ORR and OER.
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Affiliation(s)
- Pengxiang Zhang
- College of Science, Henan Agricultural University, 63 Agriculture Road, Zhengzhou, 450002, P. R. China
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
| | - Shuling Liu
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
| | - Jingjing Zhou
- College of Science, Henan Agricultural University, 63 Agriculture Road, Zhengzhou, 450002, P. R. China
| | - Limin Zhou
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
| | - Baojun Li
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
| | - Shuqi Li
- College of Science, Henan Agricultural University, 63 Agriculture Road, Zhengzhou, 450002, P. R. China
| | - Xianli Wu
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
| | - Yu Chen
- School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710062, P. R. China
| | - Xin Li
- College of Science, Henan Agricultural University, 63 Agriculture Road, Zhengzhou, 450002, P. R. China
| | - Xia Sheng
- College of Science, Henan Agricultural University, 63 Agriculture Road, Zhengzhou, 450002, P. R. China
| | - Yanyan Liu
- College of Science, Henan Agricultural University, 63 Agriculture Road, Zhengzhou, 450002, P. R. China
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry (CAF), Nanjing, 210042, P. R. China
| | - Jianchun Jiang
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry (CAF), Nanjing, 210042, P. R. China
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Ambrose B, Madhu R, Ramamurthy K, Kathiresan M, Kundu S. Viologen-Cucurbit[7]uril Based Polyrotaxanated Covalent Organic Networks: A Metal Free Electrocatalyst for Oxygen Evolution Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402403. [PMID: 38682732 DOI: 10.1002/smll.202402403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/17/2024] [Indexed: 05/01/2024]
Abstract
Viologen-based covalent organic networks represent a burgeoning class of materials distinguished by their captivating properties. Here, supramolecular chemistry is harnessed to fabricate polyrotaxanated ionic covalent organic polymers (iCOP) through a Schiff-base condensation reaction under solvothermal conditions. The reaction between 1,1'-bis(4-aminophenyl)-[4,4'-bipyridine]-1,1'-diium dichloride (DPV-NH2) and 1,3,5-triformylphloroglucinol (TPG) in various solvents yields an iCOP-1 and iCOP-2. Likewise, employing cucurbit[7]uril (CB[7]) in the reaction yielded polyrotaxanated iCOPs, denoted as iCOP-CB[7]-1 and iCOP-CB[7]-2. All four iCOPs exhibit exceptional stability under the acidic and basic conditions. iCOP-CB[7]-2 displays outstanding electrocatalytic Oxygen Evolution Reaction (OER) performance, demanding an overpotential of 296 and 332 mV at 10 and 20 mA cm-2, respectively. Moreover, the CB[7] integrated iCOP-2 exhibits a long-term stable nature for 30 h in 1 m KOH environment. Further, intrinsic activity studies like TOF show a 4.2-fold increase in generation of oxygen (O2) molecules than the bare iCOP-2. Also, it is found that iCOP-CB[7]-2 exhibits a high specific (19.48 mA cm-2) and mass activity (76.74 mA mg-1) at 1.59 V versus RHE. Operando-EIS study evident that iCOP-CB[7]-2 commences OER at a relatively low applied potential of 1.5 V versus RHE. These findings pave the way for a novel approach to synthesizing various mechanically interlocked molecules through straightforward solvothermal conditions.
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Affiliation(s)
- Bebin Ambrose
- Academy of Scientific and Innovative Research, Ghaziabad, 201002, India
- Electro organic and Materials Electrochemistry (EMED) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
| | - Ragunath Madhu
- Academy of Scientific and Innovative Research, Ghaziabad, 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
| | - Kalaivanan Ramamurthy
- Electro organic and Materials Electrochemistry (EMED) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
- Centre for Education (CFE), CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
| | - Murugavel Kathiresan
- Academy of Scientific and Innovative Research, Ghaziabad, 201002, India
- Electro organic and Materials Electrochemistry (EMED) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
| | - Subrata Kundu
- Academy of Scientific and Innovative Research, Ghaziabad, 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
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Mei J, Deng Y, Cheng X, Wu Q. Facile and scalable synthesis of Ni 3S 2/Fe 3O 4 nanoblocks as an efficient and stable electrocatalyst for oxygen evolution reaction. J Colloid Interface Sci 2024; 660:440-448. [PMID: 38244509 DOI: 10.1016/j.jcis.2024.01.072] [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: 11/02/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/22/2024]
Abstract
This study employed a one-step hydrothermal process to synthesize Ni3S2/Fe3O4 nanoblocks in situ on nickel foam (NF). The resulting Ni3S2/Fe3O4/NF catalyst demonstrates exceptional electrocatalytic activity for the oxygen evolution reaction (OER) and robust long-term stability. It achieves a low overpotential of only 220 mV for a current density of 10 mA cm-2 with a Tafel slope of 54.1 mV dec-1 and remains stable in 1.0 M KOH for 66 h. The binder-free self-supported three-dimensional nanoblocks enhance the reaction region and long-term stability. Electronic interactions between Fe3O4 and Ni3S2, coupled with heterogeneous interfaces, optimize the electronic structure, fostering the formation of highly reactive species. Density-functional theory (DFT) calculations confirm that Ni3S2/Fe3O4, with a heterogeneous interfacial structure, modulates the chemisorption of reaction intermediates on the catalyst surface, optimizing the Gibbs free energies (ΔG) of oxygen-containing intermediates. The synergistic effect between the two active materials within the heterogeneous structure enhances OER catalytic performance. This finding offers a valuable approach to designing efficient and stable OER electrocatalysts.
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Affiliation(s)
- Jing Mei
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China; Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, China
| | - Yuqing Deng
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China; Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, China
| | - Xiaohong Cheng
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang 441053, China
| | - Qi Wu
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China.
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8
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Hao J, Wang L, Qi Z, Yang Y, Zhang Z, Hua Y, Cai C, Yang W, Li L, Shi W. Cations induced in situ electrochemical amorphization for enhanced oxygen evolution reaction. J Colloid Interface Sci 2024; 658:671-677. [PMID: 38134675 DOI: 10.1016/j.jcis.2023.12.115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 12/11/2023] [Accepted: 12/18/2023] [Indexed: 12/24/2023]
Abstract
Surface reconstruction is widely existed on the surface of transition metal-based catalysts under operando oxygen evolution reaction (OER) condition. The design and optimize the reconstruction process are essential to achieve high electrochemical active surface and thus facilitate the reaction kinetics, whereas still challenge. Herein, we exploit electrolyte engineering to regulate reconstruction on the surface of Fe2O3 catalysts under operando OER conditions. The intentional added cations in electrolyte can participate the reconstruction process and realize a desirable crystalline to amorphous structure conversion, contributing abundant well-defined active sites. Spectroscopic measurements and density functional theory calculation provide insight into the underlying role of amorphous structure for electron transfer, mass transport, and intermediate adsorption. With the assistant of Co2+ cations, the enhanced current density as large as 17.9 % can be achieved at 2.32 V (vs RHE). The present results indicate the potential of electrolyte engineering for regulating the reconstruction process and provide a generalized in-situ strategy for advanced catalysts design.
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Affiliation(s)
- Jinhui Hao
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
| | - Ling Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China
| | - Zhihao Qi
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China
| | - Yonggang Yang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China
| | - Zhilin Zhang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China
| | - Yutao Hua
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China
| | - Chenyang Cai
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China
| | - Wenshu Yang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China
| | - Longhua Li
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China
| | - Weidong Shi
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
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9
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Dürr R, Maltoni P, Feng S, Ghorai S, Ström P, Tai CW, Araujo RB, Edvinsson T. Clearing Up Discrepancies in 2D and 3D Nickel Molybdate Hydrate Structures. Inorg Chem 2024; 63:2388-2400. [PMID: 38242537 PMCID: PMC10848204 DOI: 10.1021/acs.inorgchem.3c03261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 12/22/2023] [Accepted: 12/25/2023] [Indexed: 01/21/2024]
Abstract
When electrocatalysts are prepared, modification of the morphology is a common strategy to enhance their electrocatalytic performance. In this work, we have examined and characterized nanorods (3D) and nanosheets (2D) of nickel molybdate hydrates, which previously have been treated as the same material with just a variation in morphology. We thoroughly investigated the materials and report that they contain fundamentally different compounds with different crystal structures, chemical compositions, and chemical stabilities. The 3D nanorod structure exhibits the chemical formula NiMoO4·0.6H2O and crystallizes in a triclinic system, whereas the 2D nanosheet structures can be rationalized with Ni3MoO5-0.5x(OH)x·(2.3 - 0.5x)H2O, with a mixed valence of both Ni and Mo, which enables a layered crystal structure. The difference in structure and composition is supported by X-ray photoelectron spectroscopy, ion beam analysis, thermogravimetric analysis, X-ray diffraction, electron diffraction, infrared spectroscopy, Raman spectroscopy, and magnetic measurements. The previously proposed crystal structure for the nickel molybdate hydrate nanorods from the literature needs to be reconsidered and is here refined by ab initio molecular dynamics on a quantum mechanical level using density functional theory calculations to reproduce the experimental findings. Because the material is frequently studied as an electrocatalyst or catalyst precursor and both structures can appear in the same synthesis, a clear distinction between the two compounds is necessary to assess the underlying structure-to-function relationship and targeted electrocatalytic properties.
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Affiliation(s)
- Robin
N. Dürr
- Department
of Chemistry, Physical Chemistry, Ångström Laboratory, Uppsala University, Uppsala 751 20 ,Sweden
- Université
Paris-Saclay, CEA, CNRS, NIMBE, LICSEN, Gif-sur-Yvette91191 ,France
| | - Pierfrancesco Maltoni
- Department
of Materials Science and Engineering, Solid State Physics, Ångström
Laboratory, Uppsala University, Uppsala751 03 ,Sweden
| | - Shihui Feng
- Department
of Materials and Environmental Chemistry, Stockholm University, Stockholm 106 91 ,Sweden
| | - Sagar Ghorai
- Department
of Materials Science and Engineering, Solid State Physics, Ångström
Laboratory, Uppsala University, Uppsala751 03 ,Sweden
| | - Petter Ström
- Department
of Physics and Astronomy, Applied Nuclear Physics, Ångström
Laboratory, Uppsala University, Uppsala751 20 ,Sweden
| | - Cheuk-Wai Tai
- Department
of Materials and Environmental Chemistry, Stockholm University, Stockholm 106 91 ,Sweden
| | - Rafael B. Araujo
- Department
of Materials Science and Engineering, Solid State Physics, Ångström
Laboratory, Uppsala University, Uppsala751 03 ,Sweden
| | - Tomas Edvinsson
- Department
of Materials Science and Engineering, Solid State Physics, Ångström
Laboratory, Uppsala University, Uppsala751 03 ,Sweden
- Energy Materials
Laboratory, Chemistry: School of Natural and Environmental Science, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
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10
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Wang N, Chen D, Ning S, Lao J, Xu J, Luo M, Zhang W, Chen J, Yang M, Xie F, Jin Y, Sun S, Meng H. Fe Cluster Modified Co 9 S 8 Heterojunction: Highly Efficient Photoelectrocatalyst for Overall Water Splitting and Flexible Zinc-Air Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2306138. [PMID: 37920965 DOI: 10.1002/adma.202306138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 10/13/2023] [Indexed: 11/04/2023]
Abstract
Designing bifunctional low-cost photo-assisted electrocatalysts for converting solar and electric energy into hydrogen energy remains a huge challenge. Herein, a heterojunction (Fe cluster modified Co9 S8 loaded on carbon nanotubes, Co9 S8 -Fe@CNT) for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is demonstrated. Benefiting from the good electronic conductivity and spatial confinement of the carbon skeleton, as well as the electronic structure regulation of the Fe cluster, Co9 S8 -Fe@CNT exhibits excellent catalytic performance with a low overpotential of 150 mV for OER and 135 mV for HER at 10 mA cm-2 . Upon light irradiation, holes and electrons are generated in the valence band and conduction band of the Co9 S8 , respectively. Part of the charges are transferred to the interface to facilitate the catalytic reaction, while the remaining are transferred by the electrode. When working as a bifunctional catalyst for overall water splitting, the performance can reach 1.33 V at under light conditions, which is significantly better than 1.52 V in a dark environment. Theoretical calculations revealed lowered Gibbs free energy (∆GH *) of the heterojunction with the effect of Fe modification of Co9 S8 . This work sheds a new light in designing novel photoelectrochemical materials to convert solar and electric energy into chemical energy.
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Affiliation(s)
- Nan Wang
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, 510632, China
| | - Di Chen
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, 510632, China
| | - Shunlian Ning
- Instrumental Analysis & Research Center, School of Chemistry, Sun Yat-sen University, Guangzhou, Guangdong, 510275, China
| | - Jiayu Lao
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, 510632, China
| | - Jinchang Xu
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, 510632, China
| | - Mi Luo
- CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Beijing, 100045, China
| | - Weiping Zhang
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Institute of Environmental Health and Pollution control, Guangdong University of Technology, Guangzhou, 510006, China
| | - Jian Chen
- Instrumental Analysis & Research Center, School of Chemistry, Sun Yat-sen University, Guangzhou, Guangdong, 510275, China
| | - Muzi Yang
- Instrumental Analysis & Research Center, School of Chemistry, Sun Yat-sen University, Guangzhou, Guangdong, 510275, China
| | - Fangyan Xie
- Instrumental Analysis & Research Center, School of Chemistry, Sun Yat-sen University, Guangzhou, Guangdong, 510275, China
| | - Yanshuo Jin
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, 510632, China
| | - Shuhui Sun
- Institut National de la Recherche Scientifique (INRS), Center Énergie Matériaux Télécommunications, Varennes, Québec, J3X 1P7, Canada
| | - Hui Meng
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, 510632, China
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11
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Ejsmont A, Darvishzad T, Słowik G, Stelmachowski P, Goscianska J. Cobalt-based MOF-derived carbon electrocatalysts with tunable architecture for enhanced oxygen evolution reaction. J Colloid Interface Sci 2024; 653:1326-1338. [PMID: 37801843 DOI: 10.1016/j.jcis.2023.09.172] [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: 07/14/2023] [Revised: 09/17/2023] [Accepted: 09/28/2023] [Indexed: 10/08/2023]
Abstract
Development of the hydrogen economy requires the design of catalysts that increase the rate of the accompanying sluggish kinetic oxygen evolution reaction (OER). This is a key process in electrochemical energy conversion and storage, such as water splitting and metal-air batteries. The OER needs high overpotential and typically expensive precious metal-based catalysts. Therefore, designing low-cost and efficient electrocatalysts for OER is of paramount importance. In addition to focusing on the number of active sites or high specific surface area, the correlation between catalyst particle shape and performance should be considered. This work presents an electrocatalytic activity comparison of cobalt-containing carbons with different morphologies in the OER process. Employing metal-organic frameworks as carbon and metal precursors, the materials in the shape of polyhedrons, needles, unique spherical hedgehogs, and sea urchins were obtained. The effect of MOF template infiltration with additional carbon source on the physicochemical properties of electrocatalysts was also examined. The furfuryl alcohol-impregnated needle-shaped particles were characterized by a high content of cobalt active sites, surrounded by nitrogen-containing graphite layers. Electrochemical tests confirmed their best activity (overpotential 317 mV@10 mA/cm2), long stability (up to 20 h), as well as low reagents diffusion limitations (Tafel slope 57 mV/dec up to 24 mA/cm2). The vertically aligned structure of the catalyst contributed to improved detachment of the oxygen bubbles produced.
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Affiliation(s)
- Aleksander Ejsmont
- Adam Mickiewicz University, Faculty of Chemistry, Department of Chemical Technology, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Termeh Darvishzad
- Jagiellonian University, Faculty of Chemistry, Gronostajowa 2, 30-387 Krakow, Poland
| | - Grzegorz Słowik
- Maria Curie-Sklodowska University in Lublin, Faculty of Chemistry, Maria Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland
| | - Pawel Stelmachowski
- Jagiellonian University, Faculty of Chemistry, Gronostajowa 2, 30-387 Krakow, Poland
| | - Joanna Goscianska
- Adam Mickiewicz University, Faculty of Chemistry, Department of Chemical Technology, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.
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12
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Zhou S, Zheng G, Ji F, Wang J, Liu Z, Shi J, Li J, Hu Y, Deng C, Fan L, Cai W. Ni dispersed ultrathin carbon nanosheets as bi-functional oxygen electrocatalyst induced from graphite-like porous supramolecule. J Colloid Interface Sci 2023; 652:1578-1587. [PMID: 37666190 DOI: 10.1016/j.jcis.2023.08.182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/18/2023] [Accepted: 08/28/2023] [Indexed: 09/06/2023]
Abstract
Excellent porosity and accessibility are key requirements during carbon-based materials design for energy conversion applications. Herein, a Ni-based porous supramolecular framework with graphite-like morphology (Ni-SOF) was rationally designed as a carbon precursor. Ultrathin carbon nanosheets dispersed with Ni nanoparticles and Ni-Nx sites (Ni@NiNx-N-C) were obtained via in-situ exfoliation during pyrolysis. Due to the hetero-porous structure succeeding from Ni-SOF, the Ni@NiNx-N-C catalyst showed outstanding bifunctional oxygen electrocatalytic activity with a narrow gap of 0.69 V between potential to deliver 10 mA cm-2 oxygen evolution and half-wave potential of oxygen reduction reaction, which even surpassed the Pt/C + IrO2 pair. Therefore, the corresponding zinc-air battery exhibited excellent power output and stability. The multiple Ni-based active sites, the unique 2D structure with a high graphitization degree and large specific surface area synergistically contributed to the excellent bifunctional electrocatalytic activity of Ni@NiNx-N-C. This work provided a novel viewpoint for the development of carbon-based electrocatalyst.
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Affiliation(s)
- Shunfa Zhou
- Hydrogen Energy Technology Innovation Center of Hubei Province, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Guoli Zheng
- Department Key Laboratory of Catalysis and Materials of the State Ethnic Affairs Commission & Ministry of Education, South-Central University for Nationalities, Wuhan 430074, China
| | - Feng Ji
- State Key Laboratory of Space Power-Sources Technology, Shanghai Institute of Space Power Sources, Shanghai 200245, China
| | - Jiatang Wang
- Hydrogen Energy Technology Innovation Center of Hubei Province, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Zhao Liu
- Hydrogen Energy Technology Innovation Center of Hubei Province, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Jiawei Shi
- Hydrogen Energy Technology Innovation Center of Hubei Province, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Jing Li
- Hydrogen Energy Technology Innovation Center of Hubei Province, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Yang Hu
- Department of Energy Conversion and Storage, Technical University of Denmark, Fysikvej, Building 310, 2800 Kgs. Lyngby, Denmark
| | - Chengwei Deng
- State Key Laboratory of Space Power-Sources Technology, Shanghai Institute of Space Power Sources, Shanghai 200245, China.
| | - Liyuan Fan
- College of Science and Engineering, James Cook University, 1 James Cook Drive, Townsville, QLD 4811, Australia
| | - Weiwei Cai
- Hydrogen Energy Technology Innovation Center of Hubei Province, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
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13
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Ren JT, Chen L, Wang HY, Yuan ZY. High-entropy alloys in electrocatalysis: from fundamentals to applications. Chem Soc Rev 2023; 52:8319-8373. [PMID: 37920962 DOI: 10.1039/d3cs00557g] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
High-entropy alloys (HEAs) comprising five or more elements in near-equiatomic proportions have attracted ever increasing attention for their distinctive properties, such as exceptional strength, corrosion resistance, high hardness, and excellent ductility. The presence of multiple adjacent elements in HEAs provides unique opportunities for novel and adaptable active sites. By carefully selecting the element configuration and composition, these active sites can be optimized for specific purposes. Recently, HEAs have been shown to exhibit remarkable performance in electrocatalytic reactions. Further activity improvement of HEAs is necessary to determine their active sites, investigate the interactions between constituent elements, and understand the reaction mechanisms. Accordingly, a comprehensive review is imperative to capture the advancements in this burgeoning field. In this review, we provide a detailed account of the recent advances in synthetic methods, design principles, and characterization technologies for HEA-based electrocatalysts. Moreover, we discuss the diverse applications of HEAs in electrocatalytic energy conversion reactions, including the hydrogen evolution reaction, hydrogen oxidation reaction, oxygen reduction reaction, oxygen evolution reaction, carbon dioxide reduction reaction, nitrogen reduction reaction, and alcohol oxidation reaction. By comprehensively covering these topics, we aim to elucidate the intricacies of active sites, constituent element interactions, and reaction mechanisms associated with HEAs. Finally, we underscore the imminent challenges and emphasize the significance of both experimental and theoretical perspectives, as well as the potential applications of HEAs in catalysis. We anticipate that this review will encourage further exploration and development of HEAs in electrochemistry-related applications.
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Affiliation(s)
- Jin-Tao Ren
- National Institute for Advanced Materials, School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin 300350, China.
| | - Lei Chen
- National Institute for Advanced Materials, School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin 300350, China.
| | - Hao-Yu Wang
- National Institute for Advanced Materials, School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin 300350, China.
| | - Zhong-Yong Yuan
- National Institute for Advanced Materials, School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin 300350, China.
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China
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14
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Chen Z, Qu Q, Li X, Srinivas K, Chen Y, Zhu M. Room-Temperature Synthesis of Carbon-Nanotube-Interconnected Amorphous NiFe-Layered Double Hydroxides for Boosting Oxygen Evolution Reaction. Molecules 2023; 28:7289. [PMID: 37959709 PMCID: PMC10648594 DOI: 10.3390/molecules28217289] [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: 10/04/2023] [Revised: 10/21/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
The oxygen evolution reaction (OER) is a key half-reaction in electrocatalytic water splitting. Large-scale water electrolysis is hampered by commercial noble-metal-based OER electrocatalysts owing to their high cost. To address these issues, we present a facile, one-pot, room-temperature co-precipitation approach to quickly synthesize carbon-nanotube-interconnected amorphous NiFe-layered double hydroxides (NiFe-LDH@CNT) as cost-effective, efficient, and stable OER electrocatalysts. The hybrid catalyst NiFe-LDH@CNT delivered outstanding OER activity with a low onset overpotential of 255 mV and a small Tafel slope of 51.36 mV dec-1, as well as outstanding long-term stability. The high catalytic capability of NiFe-LDH@CNT is associated with the synergistic effects of its room-temperature synthesized amorphous structure, bi-metallic modulation, and conductive CNT skeleton. The room-temperature synthesis can not only offer economic feasibility, but can also allow amorphous NiFe-LDH to be obtained without crystalline boundaries, facilitating long-term stability during the OER process. The bi-metallic nature of NiFe-LDH guarantees a modified electronic structure, providing additional catalytic sites. Simultaneously, the highly conductive CNT network fosters a nanoporous structure, facilitating electron transfer and O2 release and enriching catalytic sites. This study introduces an innovative approach to purposefully design nanoarchitecture and easily synthesize amorphous transition-metal-based OER catalysts, ensuring their cost effectiveness, production efficiency, and long-term stability.
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Affiliation(s)
- Zhuo Chen
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, China
| | - Qiang Qu
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, China
| | - Xinsheng Li
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Integrated Circuit Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Katam Srinivas
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Integrated Circuit Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Yuanfu Chen
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Integrated Circuit Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Mingqiang Zhu
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, China
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15
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Luo Y, Wen M, Zhou J, Wu Q, Wei G, Fu Y. Highly-Exposed Co-CoO Derived from Nanosized ZIF-67 on N-Doped Porous Carbon Foam as Efficient Electrocatalyst for Zinc-Air Battery. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302925. [PMID: 37356070 DOI: 10.1002/smll.202302925] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 06/07/2023] [Indexed: 06/27/2023]
Abstract
Non-precious-metal based electrocatalysts with highly-exposed and well-dispersed active sites are crucially needed to achieve superior electrocatalytic performance for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) toward zinc-air battery (ZAB). Herein, Co-CoO heterostructures derived from nanosized ZIF-67 are densely-exposed and strongly-immobilized onto N-doped porous carbon foam (NPCF) through a self-sacrificial pyrolysis strategy. Benefited from the high exposure of Co-CoO heterostructures and the favorable mass and electron transfer ability of NPCF, the Co-CoO/NPCF electrocatalyst exhibits remarkable performance for both ORR (E1/2 = 0.843 V vs RHE) and OER (Ej = 10 mA cm-2 = 1.586 V vs RHE). Further application of Co-CoO/NPCF as the air-cathode in rechargeable ZAB achieves superior performance for liquid-state ZAB (214.1 mW cm-2 and 600 cycles) and flexible all-solid-state ZAB (93.1 mW cm-2 and 140 cycles). Results from DFT calculations demonstrate that the electronic metal-support interactions between Co-CoO and NPCF via abundant C-Nx sites is favorable for electronic structure modulation, accounting for the remarkable performance.
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Affiliation(s)
- Yixing Luo
- School of Chemical Science and Engineering, The State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, Shanghai, 200092, China
| | - Ming Wen
- School of Chemical Science and Engineering, The State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, Shanghai, 200092, China
| | - Jian Zhou
- School of Chemical Science and Engineering, The State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, Shanghai, 200092, China
| | - Qingsheng Wu
- School of Chemical Science and Engineering, The State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, Shanghai, 200092, China
| | - Guangfeng Wei
- School of Chemical Science and Engineering, The State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, Shanghai, 200092, China
| | - Yongqing Fu
- Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE99, UK
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16
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Xu S, Ni H, Zhang X, Han C, Qian J. Abundant Surface Defects in Cobalt Hydroxides/Oxyhydroxides Induced by Zinc Species Facilitate Water Oxidation. Inorg Chem 2023; 62:14757-14763. [PMID: 37639239 DOI: 10.1021/acs.inorgchem.3c02210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Abstract
The complex process of the anodic oxygen evolution reaction (OER) severely hinders overall water splitting, which further limits the large-scale production and application of hydrogen energy. In this work, one type of bimetallic coordination polymer of ZnCoBTC using the MOF-on-MOF strategy has been synthesized where both Co(II) and Zn(II) cations exhibit the same coordination environment. By applying an electric potential, the predesigned bimetallic MOF precursor can be conveniently degraded into CoOxHy as an active species for efficient OER. Owing to the dissolution of ZnOxHy species, in situ formed disordered defects on the external surface of the catalyst increase the specific surface area as well as expose abundant active materials. Therefore, the ZnCoOxHy nanosheet shows excellent OER performance and reaches an overpotential of only 334 mV at 10 mA cm-2 with a Tafel slope of 66.4 mV dec-1, indicating fast reaction kinetics. The results demonstrate that metals with the same coordination environment can undergo in situ replacement or secondary growth on the pristine MOF, and they can be electrochemically degraded into highly efficient catalysts for future energy applications.
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Affiliation(s)
- Shaojie Xu
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325000, P. R. China
| | - Huijie Ni
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325000, P. R. China
| | - Xiaodeng Zhang
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325000, P. R. China
| | - Cheng Han
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325000, P. R. China
| | - Jinjie Qian
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325000, P. R. China
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17
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Xie J, Wang S, Luo H, Tan L, Yu Z, Yu Y, Liu Y, Jiang F, Chen H. Reconstruction of CoN x /NC Catalyst during Oxygen Evolution Reaction by Fe 3+ Modulation for Enhanced Activity and Stability. CHEMSUSCHEM 2023; 16:e202300468. [PMID: 37161696 DOI: 10.1002/cssc.202300468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 05/04/2023] [Accepted: 05/08/2023] [Indexed: 05/11/2023]
Abstract
The surface reconstruction of transition metal-based catalysts has been demonstrated to be beneficial for oxygen evolution reaction (OER). However, regulating the activity and stability of the components derived from reconstruction is challenging. Here, a strategy of Fe3+ ion modulating the reconstruction components of CoN0.4 on a nitrogen-doped carbon carrier(CoN0.4 /NC) electrocatalyst for promoted OER activity and stability is reported. During the OER process, the cobalt nitride components on the surface of CoN0.4 /NC catalyst were converted into CoOOH and Co4+ species. The addition of Fe3+ stabilized the CoOOH phase and facilitated the formation of Fe-CoOOH active phase, enhancing the activity and stability of CoN0.4 /NC. The Fe10 -CoN0.4 /NC catalyst achieved a current density of 10 mA cm-2 at a low overpotential of 300 mV (vs. RHE) with a Tafel slope of 68.12 mV dec-1 . The overpotential of Fe10 -CoN0.4 /NC was 122 mV lower than that of the CoN0.4 /NC catalyst and was comparable to commercial RuO2 catalyst. This study develops a novel technology for regulating the production of reconstructed species using Fe3+ ions.
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Affiliation(s)
- Junliang Xie
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 210094, Nanjing, P. R. China
| | - Siyuan Wang
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 210094, Nanjing, P. R. China
| | - Haopeng Luo
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 210094, Nanjing, P. R. China
| | - Ling Tan
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 210094, Nanjing, P. R. China
| | - Zhonghao Yu
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 210094, Nanjing, P. R. China
| | - Yalin Yu
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 210094, Nanjing, P. R. China
| | - Yun Liu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, 210008, Nanjing, P. R. China
| | - Fang Jiang
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 210094, Nanjing, P. R. China
| | - Huan Chen
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 210094, Nanjing, P. R. China
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18
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Meena A, Bathula C, Hatshan MR, Palem RR, Jana A. Microstructure and Oxygen Evolution Property of Prussian Blue Analogs Prepared by Mechanical Grinding. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2459. [PMID: 37686966 PMCID: PMC10489616 DOI: 10.3390/nano13172459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/25/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023]
Abstract
Solvent-free mechanochemical synthesis of efficient and low-cost double perovskite (DP), like a cage of Prussian blue (PB) and PB analogs (PBAs), is a promising approach for different applications such as chemical sensing, energy storage, and conversion. Although the solvent-free mechanochemical grinding approach has been extensively used to create halide-based perovskites, no such reports have been made for cyanide-based double perovskites. Herein, an innovative solvent-free mechanochemical synthetic strategy is demonstrated for synthesizing Fe4[Fe(CN)6]3, Co3[Fe(CN)6]2, and Ni2[Fe(CN)6], where defect sites such as carbon-nitrogen vacancies are inherently introduced during the synthesis. Among all the synthesized PB analogs, the Ni analog manifests a considerable electrocatalytic oxygen evolution reaction (OER) with a low overpotential of 288 mV to obtain the current benchmark density of 20 mA cm-2. We hypothesize that incorporating defects, such as carbon-nitrogen vacancies, and synergistic effects contribute to high catalytic activity. Our findings pave the way for an easy and inexpensive large-scale production of earth-abundant non-toxic electrocatalysts with vacancy-mediated defects for oxygen evolution reaction.
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Affiliation(s)
- Abhishek Meena
- Division of Physics and Semiconductor Science, Dongguk University-Seoul, Seoul 04620, Republic of Korea;
| | - Chinna Bathula
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea;
| | - Mohammad Rafe Hatshan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;
| | - Ramasubba Reddy Palem
- Department of Medical Biotechnology, Dongguk University, Goyang 10326, Republic of Korea;
| | - Atanu Jana
- Division of Physics and Semiconductor Science, Dongguk University-Seoul, Seoul 04620, Republic of Korea;
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19
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Bilal M, Altaf A, Bint-E-Khalid E, Zafar HK, Tahir N, Nafady A, Wahab MA, Shah SSA, Najam T, Sohail M. NiCo 2O 4 nano-needles as an efficient electro-catalyst for simultaneous water splitting and dye degradation. RSC Adv 2023; 13:23547-23557. [PMID: 37555091 PMCID: PMC10404933 DOI: 10.1039/d3ra03012a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 07/11/2023] [Indexed: 08/10/2023] Open
Abstract
Developing an efficient and non-precious bifunctional catalyst capable of performing water splitting and organic effluent degradation in wastewater is a great challenge. This article reports an efficient bifunctional nanocatalyst based on NiCo2O4, synthesized using a simple one-pot co-precipitation method. We optimized the synthesis conditions by varying the synthesis pH and sodium dodecyl sulfate (SDS) concentrations. The prepared catalyst exhibited excellent catalytic activity for the electrochemical oxygen evolution reaction (OER) and simultaneous methylene blue (MB) dye degradation. Among the catalysts, the catalyst synthesized using 1 g SDS as a surfactant at 100 °C provided the highest current density (658 mA cm-2), lower onset potential (1.34 V vs. RHE), lower overpotential (170 mV @ 10 mA cm-2), and smallest Tafel slope (90 mV dec-1) value. Furthermore, the OH˙ radicals produced during the OER electrochemically degraded the MB to 90% within 2 hours. The stability test conducted at 20 mA cm-2 showed almost negligible loss of the electrochemical response for OER, with 99% retention of the original response. These results strongly suggest that this catalyst is a promising candidate for addressing the challenges of wastewater treatment and energy generation.
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Affiliation(s)
- Muhammad Bilal
- Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology Islamabad 44000 Pakistan
| | - Amna Altaf
- Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology Islamabad 44000 Pakistan
| | - Ehmen Bint-E-Khalid
- Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology Islamabad 44000 Pakistan
| | - Hafiza Komal Zafar
- Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology Islamabad 44000 Pakistan
| | - Nimrah Tahir
- Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology Islamabad 44000 Pakistan
| | - Ayman Nafady
- Chemistry Department, College of Science, King Saud University Riyadh 11451 Saudi Arabia
| | - Md A Wahab
- Energy and Process Engineering Laboratory, School of Mechanical, Medical and Process Engineering, Faculty of Science, Queensland University of Technology (QUT) 2 George Street Brisbane QLD 4000 Australia
| | - Syed Shoaib Ahmad Shah
- Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology Islamabad 44000 Pakistan
| | - Tayyaba Najam
- Institute of Chemistry, The Islamia University of Bahawalpur 63100 Pakistan
| | - Manzar Sohail
- Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology Islamabad 44000 Pakistan
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20
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Zhou H, Wei Z, Nyaaba AA, Kang Z, Liu Y, Chen C, Zhu J, Ji X, Zhu G. Ligand leaching enabling improved electrocatalytic oxygen evolution performance. Dalton Trans 2023. [PMID: 37448344 DOI: 10.1039/d3dt02012f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/15/2023]
Abstract
Design and fabrication of cost-effective (pre-)catalysts are important for water splitting and metal-air batteries. In this direction, various metal-organic frameworks (MOFs) have been investigated as pre-catalysts for oxygen evolution. However, the activation process and the complex reconstruction behaviour of these MOFs are not well understood. Herein, square-like MOF nanosheets in which carbon nanotubes were embedded were prepared by introducing an amine ligand to coordinate with Ni ions and then reacting with [Fe(CN)6]3-. The formed MOF nanosheets containing nickel and iron species were then activated by NaBH4, inducing the leaching of ligands and the formation of tiny active species in situ loaded on carbon nanotubes. The prepared catalyst shows superior oxygen evolution performance with an ultralow overpotential of 231 mV for 10 mA cm-2, a fast reaction kinetics with a small Tafel slope of 52.3 mV dec-1, and outstanding catalysis stability. The excellent electrocatalytic performance for oxygen evolution can be attributed to the structural advantage of in situ derived small sized active species and one-dimensional conductive networks. This work provides a new thought for the enhancement of the electrocatalytic performance of MOF materials.
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Affiliation(s)
- Hongbo Zhou
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
| | - Zi Wei
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
| | - Albert Akeno Nyaaba
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
| | - Ziliang Kang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
| | - Yashu Liu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Caiyao Chen
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
| | - Jun Zhu
- Faculty of Transportation Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Xiafang Ji
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
| | - Guoxing Zhu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
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21
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Zhou P, Wu L, Ji Z, Fan C, Shen X, Zhu G, Xu L. Construction of NiFe(CN) 5NO/Ni 3S 2 hierarchical submicro-rods on nickel foam as advanced oxygen evolution electrocatalysts. J Colloid Interface Sci 2023; 646:98-106. [PMID: 37187052 DOI: 10.1016/j.jcis.2023.05.032] [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: 02/03/2023] [Revised: 04/27/2023] [Accepted: 05/05/2023] [Indexed: 05/17/2023]
Abstract
The development of cheap, abundant, and highly efficient electrocatalysts for the oxygen evolution reaction (OER) is urgently needed for hydrogen production from water splitting. Herein, we demonstrate a novel OER electrocatalyst (NiFe(CN)5NO/Ni3S2) prepared by coupling Ni3S2 and a bimetallic metal-organic framework (MOF) of NiFe(CN)5NO on nickel foam (NF) via a simple two-step route. The NiFe(CN)5NO/Ni3S2 electrocatalyst displays an interesting rod-like hierarchical architecture assembled by ultrathin nanosheets. The combination of NiFe(CN)5NO and Ni3S2 optimizes the electronic structure of the metal active sites and increases the electron transfer capability. Benefitting from the synergistic effect between Ni3S2 and the NiFe-MOF as well as the unique hierarchical architecture, the NiFe(CN)5NO/Ni3S2/NF electrode exhibits excellent electrocatalytic OER activity with ultralow overpotentials of 162/197 mV at 10/100 mA cm-2 and an ultrasmall Tafel slope of 26 mV dec-1 in 1.0 M KOH, which are far superior to those of the individual NiFe(CN)5NO, Ni3S2 and commercial IrO2 catalysts. In particular, unlike common metal sulfide-based electrocatalysts, the composition, morphology and microstructure of the NiFe-MOF/Ni3S2 composite electrocatalyst can be well retained after the OER, which endows it with fantastic long-term durability. This work offers a new strategy for the construction of novel and high-efficiency MOF-based composite electrocatalysts for energy applications.
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Affiliation(s)
- Pin Zhou
- School of Chemistry and Materials Science, Changzhou Institute of Technology, Changzhou 213032, PR China
| | - Lei Wu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Zhenyuan Ji
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Chen Fan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Xiaoping Shen
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Guoxing Zhu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Liangliang Xu
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
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22
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Hao J, Wu K, Lyu C, Yang Y, Wu H, Liu J, Liu N, Lau WM, Zheng J. Recent advances in interface engineering of Fe/Co/Ni-based heterostructure electrocatalysts for water splitting. MATERIALS HORIZONS 2023. [PMID: 37132292 DOI: 10.1039/d3mh00366c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Among various methods of developing hydrogen energy, electrocatalytic water splitting for hydrogen production is one of the approaches to achieve the goal of zero carbon emissions. It is of great significance to develop highly active and stable catalysts to improve the efficiency of hydrogen production. In recent years, the construction of nanoscale heterostructure electrocatalysts through interface engineering can not only overcome the shortcomings of single-component materials to effectively improve their electrocatalytic efficiency and stability but also adjust the intrinsic activity or design synergistic interfaces to improve catalytic performance. Among them, some researchers proposed to replace the slow oxygen evolution reaction at the anode with the oxidation reaction of renewable resources such as biomass to improve the catalytic efficiency of the overall water splitting. The existing reviews in the field of electrocatalysis mainly focus on the relationship between the interface structure, principle, and principle of catalytic reaction, and some articles summarize the performance and improvement schemes of transition metal electrocatalysts. Among them, few studies are focusing on Fe/Co/Ni-based heterogeneous compounds, and there are fewer summaries on the oxidation reactions of organic compounds at the anode. To this end, this paper comprehensively describes the interface design and synthesis, interface classification, and application in the field of electrocatalysis of Fe/Co/Ni-based electrocatalysts. Based on the development and application of current interface engineering strategies, the experimental results of biomass electrooxidation reaction (BEOR) replacing anode oxygen evolution reaction (OER) are discussed, and it is feasible to improve the overall electrocatalytic reaction efficiency by coupling with hydrogen evolution reaction (HER). In the end, the challenges and prospects for the application of Fe/Co/Ni-based heterogeneous compounds in water splitting are briefly discussed.
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Affiliation(s)
- Ju Hao
- Beijing Advanced Innovation Center for Materials Genome Engineering Center for Green Innovation, School of Mathematics and Physics University of Science and Technology Beijing, Beijing 100083, P. R. China.
| | - Kaili Wu
- Beijing Advanced Innovation Center for Materials Genome Engineering Center for Green Innovation, School of Mathematics and Physics University of Science and Technology Beijing, Beijing 100083, P. R. China.
| | - Chaojie Lyu
- Beijing Advanced Innovation Center for Materials Genome Engineering Center for Green Innovation, School of Mathematics and Physics University of Science and Technology Beijing, Beijing 100083, P. R. China.
| | - Yuquan Yang
- Beijing Advanced Innovation Center for Materials Genome Engineering Center for Green Innovation, School of Mathematics and Physics University of Science and Technology Beijing, Beijing 100083, P. R. China.
| | - Hongjing Wu
- Beijing Advanced Innovation Center for Materials Genome Engineering Center for Green Innovation, School of Mathematics and Physics University of Science and Technology Beijing, Beijing 100083, P. R. China.
| | - Jiajia Liu
- Beijing Advanced Innovation Center for Materials Genome Engineering Center for Green Innovation, School of Mathematics and Physics University of Science and Technology Beijing, Beijing 100083, P. R. China.
| | - Naiyan Liu
- Beijing Advanced Innovation Center for Materials Genome Engineering Center for Green Innovation, School of Mathematics and Physics University of Science and Technology Beijing, Beijing 100083, P. R. China.
| | - Woon-Ming Lau
- Beijing Advanced Innovation Center for Materials Genome Engineering Center for Green Innovation, School of Mathematics and Physics University of Science and Technology Beijing, Beijing 100083, P. R. China.
- Shunde Innovation School, University of Science and Technology Beijing Foshan 528399, P. R. China
| | - Jinlong Zheng
- Beijing Advanced Innovation Center for Materials Genome Engineering Center for Green Innovation, School of Mathematics and Physics University of Science and Technology Beijing, Beijing 100083, P. R. China.
- Shunde Innovation School, University of Science and Technology Beijing Foshan 528399, P. R. China
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23
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Wang Y, Gao Y, Ma L, Xue Y, Liu ZH, Cui H, Zhang N, Jiang R. Atomically Dispersed Fe-N 4 Sites and NiFe-LDH Sub-Nanoclusters as an Excellent Air Cathode for Rechargeable Zinc-Air Batteries. ACS APPLIED MATERIALS & INTERFACES 2023; 15:16732-16743. [PMID: 36972415 DOI: 10.1021/acsami.2c23232] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The sluggish four-electron processes of the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) limit the development of rechargeable Zn-air batteries (RZABs). Highly efficient ORR/OER bifunctional electrocatalysts are therefore highly desired for the commercialization of RZABs in large scale. Herein, the Fe-N4-C (ORR active sites) and NiFe-LDH clusters (OER active sites) are successfully integrated within a NiFe-LDH/Fe,N-CB electrocatalyst. The NiFe-LDH/Fe,N-CB electrocatalyst is first prepared by the introduction of Fe-N4 into carbon black (CB), followed by the growth of NiFe-LDH clusters. The cluster nature of NiFe-LDH effectively avoids the blocking of Fe-N4-C ORR active centers and affords excellent OER activity. The NiFe-LDH/Fe,N-CB electrocatalyst thus exhibits an excellent bifunctional ORR and OER performance, with a potential gap of only 0.71 V. The NiFe-LDH/Fe,N-CB-based RZAB exhibits an open-circuit voltage of 1.565 V and a specific capacity of 731 mAh gZn-1, which is much better than the RZAB composed of Pt/C and IrO2. Particularly, the NiFe-LDH/Fe,N-CB-based RZAB displays excellent long-term charging/discharging cyclic stability and rechargeability. Even at a large charging/discharging current density (20 mA cm-2), the charging/discharging voltage gap is only ∼1.33 V and exhibits an increase smaller than 5% after 140 cycles. This work provides a new low-cost bifunctional ORR/OER electrocatalyst with high activity and superior long-term stability and will be helpful to the commercialization of RZAB in large scale.
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Affiliation(s)
- Yuyang Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Yaping Gao
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Lixia Ma
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Yanzhong Xue
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Zong-Huai Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Huali Cui
- School of Chemistry and Chemical Engineering, Yanan University, Yan'an 716000, China
| | - Nan Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Ruibin Jiang
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China
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24
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Recent developments on iron and nickel-based transition metal nitrides for overall water splitting: A critical review. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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25
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Nam D, Lee G, Kim J. Interface engineering of CeO 2 nanoparticle/Bi 2WO 6 nanosheet nanohybrids with oxygen vacancies for oxygen evolution reactions under alkaline conditions. RSC Adv 2023; 13:8873-8881. [PMID: 36936830 PMCID: PMC10018795 DOI: 10.1039/d2ra08273j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 02/26/2023] [Indexed: 03/18/2023] Open
Abstract
Because of the interactive combination synergy effect, hetero interface engineering is used way for advancing electrocatalytic activity and durability. In this study, we demonstrate that a CeO2/Bi2WO6 heterostructure is synthesized by a hydrothermal method. Electrochemical measurement results indicate that CeO2/Bi2WO6 displays not only more OER catalytic active sites with an overpotential of 390 mV and a Tafel slope of 117 mV dec-1 but also durability for 10 h (97.57%). Such outstanding characteristics are primarily attributed to (1) the considerable activities by CeO2 nanoparticles uniformly distributed on Bi2WO6 nanosheets and (2) the plentiful Bi-O-Ce and W-O-Ce species playing the role of strong couples between CeO2 nanoparticles and Bi2WO6 nanosheets and oxygen vacancy existence in CeO2 nanoparticles, which can improve the electrochemical active surface area (ECSA) and activity, and enhance the conductivity for OERs. This CeO2/Bi2WO6 consists of the heterojunction engineering that can open a modern method of thinking for high effective OER electrocatalysts.
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Affiliation(s)
- Dukhyun Nam
- School of Chemical Engineering & Materials Science, Chung-Ang University 84 Heukseok-ro, Dongjak-gu Seoul Korea
| | - Geunhyeong Lee
- School of Chemical Engineering & Materials Science, Chung-Ang University 84 Heukseok-ro, Dongjak-gu Seoul Korea
| | - Jooheon Kim
- School of Chemical Engineering & Materials Science, Chung-Ang University 84 Heukseok-ro, Dongjak-gu Seoul Korea
- Department of Advanced Materials Engineering, Chung-Ang University Anseong-si Gyeonggi-do 17546 Republic of Korea
- Department of Intelligent Energy and Industry, Graduate School, Chung-Ang University Seoul 06974 Republic of Korea
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26
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Jia Z, Lyu X, Zhao M, Dang J, Zhu L, Guo X, Wang X, Bai Z, Yang L. In Situ Reconstructed Mo-doped Amorphous FeOOH Boosts the Oxygen Evolution Reaction. Chem Asian J 2023; 18:e202201305. [PMID: 36696069 DOI: 10.1002/asia.202201305] [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: 12/30/2022] [Revised: 01/24/2023] [Accepted: 01/25/2023] [Indexed: 01/26/2023]
Abstract
Developing a fast and highly active oxygen evolution reaction (OER) catalyst to change energy kinetics technology is essential for making clean energy. Herein, we prepare three-dimensional (3D) hollow Mo-doped amorphous FeOOH (Mo-FeOOH) based on the precatalyst MoS2 /FeC2 O4 via in situ reconstruction strategy. Mo-FeOOH exhibits promising OER performance. Specifically, it has an overpotential of 285 mV and a durability of 15 h at 10 mA cm-2 . Characterizations indicate that Mo was included inside the FeOOH lattice, and it not only modifies the electronic energy levels of FeOOH but also effectively raises the inherent activity of FeOOH for OER. Additionally, in situ Raman analysis indicates that FeC2 O4 gradually transforms into the FeOOH active site throughout the OER process. This study provides ideas for designing in situ reconstruction strategies to prepare heteroatom doping catalysts for high electrochemical activity.
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Affiliation(s)
- Zhichao Jia
- Henan Normal University, School of Chemistry and Chemical Engineering, Xinxiang, Henan, 453007, P. R. China
| | - Xiang Lyu
- Oak Ridge National Laboratory, Electrification and Energy Infrastructures Division, Oak Ridge, TN 37831, USA
| | - Mingsheng Zhao
- Henan Normal University, School of Chemistry and Chemical Engineering, Xinxiang, Henan, 453007, P. R. China
| | - Jianan Dang
- Henan Normal University, School of Chemistry and Chemical Engineering, Xinxiang, Henan, 453007, P. R. China
| | - Linge Zhu
- Henan Normal University, School of Chemistry and Chemical Engineering, Xinxiang, Henan, 453007, P. R. China
| | - Xiaowei Guo
- Henan Normal University, School of Chemistry and Chemical Engineering, Xinxiang, Henan, 453007, P. R. China
| | - Xiaobing Wang
- Henan Normal University, School of Chemistry and Chemical Engineering, Xinxiang, Henan, 453007, P. R. China
| | - Zhengyu Bai
- Henan Normal University, School of Chemistry and Chemical Engineering, Xinxiang, Henan, 453007, P. R. China
| | - Lin Yang
- Henan Normal University, School of Chemistry and Chemical Engineering, Xinxiang, Henan, 453007, P. R. China
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27
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Vazhayil A, Ashok. C S, Thomas N. Probing the Electrocatalytic Activity of Hierarchically Mesoporous M-Co3O4 (M = Ni, Zn, and Mn) with Branched Pattern for Oxygen Evolution Reaction. J Electroanal Chem (Lausanne) 2023. [DOI: 10.1016/j.jelechem.2023.117298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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28
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Singh A, Singh B, Dey S, Indra A, Lahiri GK. Ruthenium Azobis(benzothiazole): Electronic Structure and Impact of Substituents on the Electrocatalytic Single-Site Water Oxidation Process. Inorg Chem 2023; 62:2769-2783. [PMID: 36719385 DOI: 10.1021/acs.inorgchem.2c03906] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The present article deals with the structurally and spectroelectrochemically characterized newer class of ruthenium-azoheteroarenes [RuII(Ph-trpy)(Cl)(L)]ClO4, [1]ClO4-[3]ClO4 (Ph-trpy: 4'-phenyl-2,2':6',2″-terpyridine; L1: 2,2'-azobis(benzothiazole) ([1]ClO4); L2: 2,2'-azobis(6-methylbenzothiazole) ([2]ClO4); L3: 2,2'-azobis(6-chlorobenzothiazole) ([3]ClO4)). A collective consideration of experimental (i.e., structural and spectroelectrochemical) and theoretical (DFT calculations) results of [1]ClO4-[3]ClO4 established selective stabilization of (i) the unperturbed azo (N═N)0 function of L, (ii) the exclusive presence of the isomeric form involving the N(azo) donor of L trans to Cl, and (iii) the presence of extended, hydrogen-bonded trimeric units in the asymmetric unit of [2]ClO4 (CH---O) via the involvement of ClO4- anions. The detailed electrochemical studies revealed metal-based oxidation of [RuII(Ph-trpy)(Cl)(L)]+ (1+-3+) to [RuIII(Ph-trpy)(Cl)(L)]2+ (12+-32+); however, the electronic form of the first reduced state (1-3) could be better represented by its mixed RuII(Ph-trpy)(Cl)(L•-)/RuIII(Ph-trpy)(Cl)(L2-) state. Both native (1+-3+) and reduced (1-3) states exhibited weak lower energy transitions within the range of 1000-1200 nm. Further, [1]ClO4-[3]ClO4 delivered an electrochemical OER (oxygen evolution reaction) process in alkaline medium on immobilizing them to a carbon cloth support, which divulged an amplified water oxidation feature for [2]ClO4 due to the presence of electron-donating methyl groups in the L2 backbone. The faster OER kinetics and high catalytic stability of [2]ClO4 could also be rationalized by its lowest Tafel slope (85 mV dec-1) and choronoamperometric experiment (stable up to 12 h), respectively, along with high Faradic efficiency (∼97%). A comparison of [2]ClO4 with the reported analogous ruthenium complexes furnished its excellent intrinsic water oxidation activity.
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Affiliation(s)
- Aditi Singh
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Baghendra Singh
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Sanchaita Dey
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Arindam Indra
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Goutam Kumar Lahiri
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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29
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Yan T, Chen S, Sun W, Liu Y, Pan L, Shi C, Zhang X, Huang ZF, Zou JJ. IrO 2 Nanoparticle-Decorated Ir-Doped W 18O 49 Nanowires with High Mass Specific OER Activity for Proton Exchange Membrane Electrolysis. ACS APPLIED MATERIALS & INTERFACES 2023; 15:6912-6922. [PMID: 36718123 DOI: 10.1021/acsami.2c20529] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The oxygen evolution reaction (OER) severely limits the efficiency of proton exchange membrane (PEM) electrolyzers due to slow reaction kinetics. IrO2 is currently a commonly used anode catalyst, but its large-scale application is limited due to its high price and scarce reserves. Herein, we reported a practical strategy to construct an acid OER catalyst where Iridium oxide loading and iridium element bulk doping are realized on the surface and inside of W18O49 nanowires by immersion adsorption, respectively. Specifically, W0.7Ir0.3Oy has an overpotential of 278 mV at 10 mA·cm-2 in 0.1 M HClO4. The mass activity of 714.10 A·gIr-1 at 1.53 V vs. the reversible hydrogen electrode (RHE) is 80 times that of IrO2, and it can run stably for 55 h. In the PEM water electrolyzer device, its mass activity reaches 3563.63 A·gIr-1 at the cell voltage of 2.0 V. This improved catalytic performance is attributed to the following aspects: (1) The electron transport between iridium and tungsten effectively improves the electronic structure of the catalyst; (2) the introduction of iridium into W18O49 by means of elemental bulk doping and nanoparticles supporting for the enhanced conductivity and electrochemically active surface area of the catalyst, resulting in extensive exposure of active sites and increased intrinsic activity; and (3) during the OER process, partial iridium elements in the bulk phase are precipitated, and iridium oxide is formed on the surface to maintain stable activity. This work provides a new idea for designing oxygen evolution catalysts with low iridium content for practical application in PEM electrolyzers.
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Affiliation(s)
- Tianqing Yan
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin300072, China
- Zhejiang Institute of Tianjin University, Ningbo315201, Zhejiang, China
| | - Shiyi Chen
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin300072, China
- Zhejiang Institute of Tianjin University, Ningbo315201, Zhejiang, China
| | - Wendi Sun
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
| | - Yuezheng Liu
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
| | - Lun Pan
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin300072, China
- Zhejiang Institute of Tianjin University, Ningbo315201, Zhejiang, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin300192, China
| | - Chengxiang Shi
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin300072, China
- Zhejiang Institute of Tianjin University, Ningbo315201, Zhejiang, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin300192, China
| | - Xiangwen Zhang
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin300072, China
- Zhejiang Institute of Tianjin University, Ningbo315201, Zhejiang, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin300192, China
| | - Zhen-Feng Huang
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin300072, China
- Zhejiang Institute of Tianjin University, Ningbo315201, Zhejiang, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin300192, China
| | - Ji-Jun Zou
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin300072, China
- Zhejiang Institute of Tianjin University, Ningbo315201, Zhejiang, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin300192, China
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30
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Ye Y, Shan Y, Zhu H, Chen K, Yu X. Controllable formation of amorphous structure to improve the oxygen evolution reaction performance of a CoNi LDH. RSC Adv 2023; 13:2467-2475. [PMID: 36741163 PMCID: PMC9841974 DOI: 10.1039/d2ra06447b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 01/06/2023] [Indexed: 01/19/2023] Open
Abstract
The morphology design of layered double hydroxides (LDHs) is an important way to determine the catalytic performance of LDH materials. A novel structure of CoNi LDH sheets with amorphous structure on the edge was prepared by electrooxidation. It was characterized by XRD, SEM, TEM and XPS. It was found that during the electrooxidation, some of the Co2+ ions were oxidized to Co3+ to form amorphous CoOOH intermediates, which promoted the OER performance. The electrochemical test results show that CoNi LDH treated by electrooxidation for 6 hours has an ultra-low overpotential of 206 mV at a current density of 10 mA cm-2, and can work stably under alkaline conditions for more than 10 hours. This work suggests that introducing an amorphous structure on LDH through electrooxidation produces abundant active sites, which is an easy and efficient method to improve the OER performance of CoNi LDHs.
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Affiliation(s)
- You Ye
- Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and TechnologyQingdao 266042China+86-532-84023616+86-532-84023616
| | - Yan Shan
- Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and TechnologyQingdao 266042China+86-532-84023616+86-532-84023616
| | - Hongli Zhu
- Institute 53 of China's Ordnance IndustryJinan 250031China
| | - Kezheng Chen
- Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and TechnologyQingdao 266042China+86-532-84023616+86-532-84023616
| | - Xuegang Yu
- Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and TechnologyQingdao 266042China+86-532-84023616+86-532-84023616
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31
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Synthesis of Co4S3/Co9S8 nanosheets and their Fe/Cr dual heteroatom co-doped components for the promoted OER properties. J Solid State Electrochem 2023. [DOI: 10.1007/s10008-022-05368-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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32
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Al-Naggar AH, Shinde NM, Kim JS, Mane RS. Water splitting performance of metal and non-metal-doped transition metal oxide electrocatalysts. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214864] [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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33
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Tan D, Xiong H, Zhang T, Fan X, Wang J, Xu F. Recent progress in noble-metal-free electrocatalysts for alkaline oxygen evolution reaction. Front Chem 2022; 10:1071274. [PMID: 36569965 PMCID: PMC9772454 DOI: 10.3389/fchem.2022.1071274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 11/17/2022] [Indexed: 12/12/2022] Open
Abstract
The practical application of splitting water to generate hydrogen is to a large extent hindered by an oxygen evolution reaction (OER) process. Electrocatalysts with low-cost, high activity, and durability are essential for the low kinetic threshold of the OER. Despite the high active performances of noble metal compound electrocatalysts like IrO2 and RuO2, they are heavily restricted by the high cost and scarcity of noble metal elements. In this context, noble-metal-free electrocatalysts have acquired increasing significance in recent years. So far, a broad spectrum of noble-metal-free electrocatalysts has been developed for improved OER performance. In this review, three types of electrolysis and some evaluation criteria are introduced, followed by recent progress in designing and synthesizing noble-metal-free alkaline OER electrocatalysts, with the classification of metal oxides/(oxy)hydroxides, carbon-based materials, and metal/carbon hybrids. Finally, perspectives are also provided on the future development of the alkaline OER on active sites and stability of electrocatalysts.
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Affiliation(s)
- Deming Tan
- School of Mechanical Engineering, Chengdu University, Chengdu, China,*Correspondence: Deming Tan, ; Fei Xu,
| | - Hao Xiong
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an, China
| | - Tao Zhang
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Xuelin Fan
- School of Mechanical Engineering, Chengdu University, Chengdu, China
| | - Junjie Wang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China,Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Jiangsu, China
| | - Fei Xu
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an, China,*Correspondence: Deming Tan, ; Fei Xu,
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34
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Zhu S, Liu D, Lv L, Le J, Zhou Y, Li J, Kuang Y. Charged matrix stabilized cobalt oxide electrocatalyst with extraordinary oxygen evolution performance at pH 7. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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35
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Olowoyo JO, Kriek RJ. Recent Progress on Bimetallic-Based Spinels as Electrocatalysts for the Oxygen Evolution Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203125. [PMID: 35996806 DOI: 10.1002/smll.202203125] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 07/22/2022] [Indexed: 06/15/2023]
Abstract
Electrocatalytic water splitting is a promising and viable technology to produce clean, sustainable, and storable hydrogen as an energy carrier. However, to meet the ever-increasing global energy demand, it is imperative to develop high-performance non-precious metal-based electrocatalysts for the oxygen evolution reaction (OER), as the OER is considered the bottleneck for electrocatalytic water splitting. Spinels, in particular, are considered promising OER electrocatalysts due to their unique properties, precise structures, and compositions. Herein, the recent progress on the application of bimetallic-based spinels (AFe2 O4 , ACo2 O4 , and AMn2 O4 ; where A = Ni, Co, Cu, Mn, and Zn) as electrocatalysts for the OER is presented. The fundamental concepts of the OER are highlighted after which the family of spinels, their general formula, and classifications are introduced. This is followed by an overview of the various classifications of bimetallic-based spinels and their recent developments and applications as OER electrocatalysts, with special emphasis on enhancing strategies that have been formulated to improve the OER performance of these spinels. In conclusion, this review summarizes all studies mentioned therein and provides the challenges and future perspectives for bimetallic-based spinel OER electrocatalysts.
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Affiliation(s)
- Joshua O Olowoyo
- Electrochemistry for Energy & Environment Group, Research Focus Area: Chemical Resource Beneficiation (CRB), Private Bag X6001, North-West University, Potchefstroom, 2520, South Africa
| | - Roelof J Kriek
- Electrochemistry for Energy & Environment Group, Research Focus Area: Chemical Resource Beneficiation (CRB), Private Bag X6001, North-West University, Potchefstroom, 2520, South Africa
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36
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Wang W, Hu Y, Chen S. Ce-induced regulation of electron density enhanced the catalytic activity of Co-Mn oxides for water oxidation. Chem Commun (Camb) 2022; 58:11406-11409. [PMID: 36129034 DOI: 10.1039/d2cc04415c] [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
The incorporation of Ce into Co-Mn oxides induced the charge redistribution of Co and Mn via electronic coupling, which facilitated the Co3+/Co4+ transition. Thus, the overpotential at 10 mA cm-2 was reduced significantly by 73 mV for the oxygen evolution reaction after Ce doping.
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Affiliation(s)
- Wang Wang
- Hubei Electrochemical Power Sources Key Laboratory, Department of Chemistry, Wuhan University, Wuhan 430072, China.
| | - Youcheng Hu
- Hubei Electrochemical Power Sources Key Laboratory, Department of Chemistry, Wuhan University, Wuhan 430072, China.
| | - Shengli Chen
- Hubei Electrochemical Power Sources Key Laboratory, Department of Chemistry, Wuhan University, Wuhan 430072, China.
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37
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Xiao L, Wu H, Zhang Y, Sun H, Zhang W, Lyu F, Deng Z, Peng Y. Electronic and Nano-structural Modulation of Co(OH)2 Nanosheets by Fe-Benzenedicarboxylate for Efficient Oxygen Evolution. Chem Res Chin Univ 2022. [DOI: 10.1007/s40242-022-2228-1] [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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38
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Todoroki N, Tsurumaki H, Shinomiya A, Wadayama T. Surface microstructures and oxygen evolution properties of cobalt oxide deposited on Ir(111) and Pt(111) single crystal substrates. ELECTROCHEMICAL SCIENCE ADVANCES 2022. [DOI: 10.1002/elsa.202200007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Naoto Todoroki
- Graduate School of Environmental Studies Tohoku University Sendai Japan
| | - Hiroto Tsurumaki
- Graduate School of Environmental Studies Tohoku University Sendai Japan
| | - Arata Shinomiya
- Graduate School of Environmental Studies Tohoku University Sendai Japan
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39
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Trimetallic Nanoalloy of NiFeCo Embedded in Phosphidated Nitrogen Doped Carbon Catalyst for Efficient Electro-Oxidation of Kraft Lignin. Polymers (Basel) 2022; 14:polym14183781. [PMID: 36145928 PMCID: PMC9503039 DOI: 10.3390/polym14183781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/05/2022] [Accepted: 09/05/2022] [Indexed: 11/25/2022] Open
Abstract
Recently, electro-oxidation of kraft lignin has been reported as a prominent electrochemical reaction to generate hydrogen at lower overpotential in alkaline water electrolysis. However, this reaction is highly limited by the low performance of existing electrocatalysts. Herein, we report a novel yet effective catalyst that comprises nonprecious trimetallic (Ni, Fe, and Co) nanoalloy as a core in a phosphidated nitrogen-doped carbon shell (referred to as sample P-NiFeCo/NC) for efficient electro-oxidation of kraft lignin at different temperatures in alkaline medium. The as-synthesized catalyst electro-oxidizes lignin only at 0.2 V versus Hg/HgO, which is almost three times less positive potential than in the conventional oxygen evolution reaction (0.59 V versus Hg/HgO) at 6.4 mA/cm2 in 1 M KOH. The catalyst demonstrates a turnover frequency (TOF) three to five times greater in lignin containing 1 M KOH than that of pure 1 M KOH. More importantly, the catalyst P-NiFeCo/NC shows theoretical hydrogen production of about 0.37 μmoles/min in the presence of lignin, much higher than that in pure 1 M KOH (0.0078 μ moles/min). Thus, this work verifies the benefit of the NiFeCo nanoalloy incorporated in carbon matrix, providing the way to realize a highly active catalyst for the electro-oxidation of kraft lignin.
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40
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Zhu X, Zhu T, Chen Q, Peng W, Li Y, Zhang F, Fan X. FeP-CoP Nanocubes In Situ Grown on Ti 3C 2T x MXene as Efficient Electrocatalysts for the Oxygen Evolution Reaction. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01745] [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]
Affiliation(s)
- Xiaoquan Zhu
- State Key Laboratory of Chemical Engineering, Collaborative Innovation Centre of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Tanrui Zhu
- State Key Laboratory of Chemical Engineering, Collaborative Innovation Centre of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Qiming Chen
- State Key Laboratory of Chemical Engineering, Collaborative Innovation Centre of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Wenchao Peng
- State Key Laboratory of Chemical Engineering, Collaborative Innovation Centre of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Yang Li
- State Key Laboratory of Chemical Engineering, Collaborative Innovation Centre of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Fengbao Zhang
- State Key Laboratory of Chemical Engineering, Collaborative Innovation Centre of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Xiaobin Fan
- State Key Laboratory of Chemical Engineering, Collaborative Innovation Centre of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, People’s Republic of China
- Institute of Shaoxing, Tianjin University, Zhejiang 312300, People’s Republic of China
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41
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Li W, Wang C, Lu X. Conducting polymers-derived fascinating electrocatalysts for advanced hydrogen and oxygen electrocatalysis. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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42
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Sustainable oxygen evolution electrocatalysis in aqueous 1 M H 2SO 4 with earth abundant nanostructured Co 3O 4. Nat Commun 2022; 13:4341. [PMID: 35896541 PMCID: PMC9329283 DOI: 10.1038/s41467-022-32024-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 07/13/2022] [Indexed: 11/08/2022] Open
Abstract
Earth-abundant electrocatalysts for the oxygen evolution reaction (OER) able to work in acidic working conditions are elusive. While many first-row transition metal oxides are competitive in alkaline media, most of them just dissolve or become inactive at high proton concentrations where hydrogen evolution is preferred. Only noble-metal catalysts, such as IrO2, are fast and stable enough in acidic media. Herein, we report the excellent activity and long-term stability of Co3O4-based anodes in 1 M H2SO4 (pH 0.1) when processed in a partially hydrophobic carbon-based protecting matrix. These Co3O4@C composites reliably drive O2 evolution a 10 mA cm-2 current density for >40 h without appearance of performance fatigue, successfully passing benchmarking protocols without incorporating noble metals. Our strategy opens an alternative venue towards fast, energy efficient acid-media water oxidation electrodes.
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43
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Alharbi FF, Nisa MU, Hassan HMA, Manzoor S, Ahmad Z, Abid AG, Aman S, Ashiq MN, El-Nasser KS, Taha TAM. Novel lanthanum sulfide–decorated zirconia nanohybrid for enhanced electrochemical oxygen evolution reaction. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05220-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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44
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Lin X, Liu J, Wu L, Chen L, Qi Y, Qiu Z, Sun S, Dong H, Qiu X, Qin Y. In situ
coupling of lignin‐derived carbon‐encapsulated CoFe‐Co
x
N heterojunction for oxygen evolution reaction. AIChE J 2022. [DOI: 10.1002/aic.17785] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Xuliang Lin
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou China
| | - Jianglin Liu
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou China
| | - Linjun Wu
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou China
| | - Liheng Chen
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou China
| | - Yi Qi
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou China
| | - Zhongjie Qiu
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou China
| | - Shirong Sun
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou China
| | - Huafeng Dong
- School of Physics and Optoelectronic Engineering Guangdong University of Technology Guangzhou China
| | - Xueqing Qiu
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou China
| | - Yanlin Qin
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou China
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45
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Sirati MM, Hussain D, Mahmood K, Chughtai AH, Yousaf-Ur-Rehman M, Malik WMA, Alomairy S, Ahmed SB, Al-Buriahi MS, Ashiq MN. Single-step hydrothermal synthesis of amine functionalized Ce-MOF for electrochemical water splitting. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2022. [DOI: 10.1080/16583655.2022.2079310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - Dilshad Hussain
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi Pakistan, Karachi, Pakistan
| | - Khalid Mahmood
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan
| | | | | | | | - Sultan Alomairy
- Department of Physics, College of Science, Taif University, Taif, Saudi Arabia
| | - Samia ben Ahmed
- Departement of Chemistry, College of Sciences, King Khalid University, Abha, Saudi Arabia
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46
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Yang H, Li F, Zhan S, Liu Y, Li W, Meng Q, Kravchenko A, Liu T, Yang Y, Fang Y, Wang L, Guan J, Furó I, Ahlquist MSG, Sun L. Intramolecular hydroxyl nucleophilic attack pathway by a polymeric water oxidation catalyst with single cobalt sites. Nat Catal 2022. [DOI: 10.1038/s41929-022-00783-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
AbstractExploration of efficient water oxidation catalysts (WOCs) is the primary challenge in conversion of renewable energy into fuels. Here we report a molecularly well-defined heterogeneous WOC with Aza-fused, π-conjugated, microporous polymer (Aza-CMP) coordinated single cobalt sites (Aza-CMP-Co). The single cobalt sites in Aza-CMP-Co exhibited superior activity under alkaline and near-neutral conditions. Moreover, the molecular nature of the isolated catalytic sites makes Aza-CMP-Co a reliable model for studying the heterogeneous water oxidation mechanism. By a combination of experimental and theoretical results, a pH-dependent nucleophilic attack pathway for O-O bond formation was proposed. Under alkaline conditions, the intramolecular hydroxyl nucleophilic attack (IHNA) process with which the adjacent -OH group nucleophilically attacks Co4+=O was identified as the rate-determining step. This process leads to lower activation energy and accelerated kinetics than those of the intermolecular water nucleophilic attack (WNA) pathway. This study provides significant insights into the crucial function of electrolyte pH in water oxidation catalysis and enhancement of water oxidation activity by regulation of the IHNA pathway.
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47
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Xie Y, Huang H, Chen Z, He Z, Huang Z, Ning S, Fan Y, Barboiu M, Shi JY, Wang D, Su CY. Co-Fe-P Nanosheet Arrays as a Highly Synergistic and Efficient Electrocatalyst for Oxygen Evolution Reaction. Inorg Chem 2022; 61:8283-8290. [PMID: 35583467 DOI: 10.1021/acs.inorgchem.2c00727] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The rational design and synthesis of highly efficient electrocatalysts for oxygen evolution reaction (OER) is of critical importance to the large-scale production of hydrogen by water electrolysis. Here, we develop a bimetallic, synergistic, and highly efficient Co-Fe-P electrocatalyst for OER, by selecting a two-dimensional metal-organic framework (MOF) of Co-ZIF-L as the precursor. The Co-Fe-P electrocatalyst features pronounced synergistic effects induced by notable electron transfer from Co to Fe, and a large electrochemical active surface area achieved by organizing the synergistic Co-Fe-P into hierarchical nanosheet arrays with disordered grain boundaries. Such features facilitate the generation of abundant and efficiently exposed Co3+ sites for electrocatalytic OER and thus enable Co-Fe-P to deliver excellent activity (overpotential and Tafel slope as low as 240 mV and 36 mV dec-1, respectively, at a current density of 10 mA cm-2 in 1.0 M KOH solution). The Co-Fe-P electrocatalyst also shows great durability by steadily working for up to 24 h. Our work thus provides new insight into the development of highly efficient electrocatalysts based on nanoscale and/or electronic structure engineering.
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Affiliation(s)
- Yanyu Xie
- Lehn Institute of Functional Materials, MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Huanfeng Huang
- Lehn Institute of Functional Materials, MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Zhuodi Chen
- Lehn Institute of Functional Materials, MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Zhujie He
- Lehn Institute of Functional Materials, MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Zhixiang Huang
- Lehn Institute of Functional Materials, MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Shunlian Ning
- Lehn Institute of Functional Materials, MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yanan Fan
- Lehn Institute of Functional Materials, MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Mihail Barboiu
- Lehn Institute of Functional Materials, MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China.,Institut Europeen des Membranes, Adaptive Supramolecular Nanosystems Group, University of Montpellier, ENSCM-CNRS, Place E. Bataillon CC047, 34095 Montpellier, France
| | - Jian-Ying Shi
- Lehn Institute of Functional Materials, MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Dawei Wang
- Lehn Institute of Functional Materials, MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Cheng-Yong Su
- Lehn Institute of Functional Materials, MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
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48
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Yuan S, Qiu B, Amina K, Li L, Zhai P, Su Y, Xue T, Jiang T, Ding L, Wei G. Robust and Low-Power-Consumption Black Phosphorus-Graphene Artificial Synaptic Devices. ACS APPLIED MATERIALS & INTERFACES 2022; 14:21242-21252. [PMID: 35499243 DOI: 10.1021/acsami.2c03667] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Two-dimensional (2D) black phosphorus (BP) materials, as the most promising building blocks for the development of artificial synapses, have attracted more and more attention. However, the instability of exfoliated 2D BP structures still remains a problem in the development of artificial synapse devices. In this study, the robust and low-power-consumption artificial-synaptic-based BP was successfully manufactured. The synapse devices have high stability in the air atmosphere and do not show obvious degradation over 3 months. The obtained devices not only implement the main function of synapses but also perform the function of dendritic neural synapses and simple logical operations, revealing their very strong learning behavior. The high mobility of 2D BP as well as the coupled effect and quantum confinement effect of the graphene oxide quantum dot (GOQD) can greatly boost the performance of BP-based synapse devices, such as low power consumption (62 pW) and high sensitivity (ultrasmall stimuli at an amplitude of -20 mV). Moreover, benefiting from the GOQD and the interaction between BP and graphene, the main dominated mechanism of the BP-graphene synapse device can be the capture and release of electrons by the 2D BP and GOQD instead of the conductive filament.
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Affiliation(s)
- Shuai Yuan
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, People's Republic of China
| | - Bocang Qiu
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, People's Republic of China
| | - Koshayeva Amina
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, People's Republic of China
| | - Lan Li
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, People's Republic of China
| | - Peichen Zhai
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, People's Republic of China
| | - Ying Su
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, People's Republic of China
| | - Tao Xue
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, People's Republic of China
| | - Tao Jiang
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China
| | - Liping Ding
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, People's Republic of China
| | - Guodong Wei
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, People's Republic of China
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Babu SP, Falch A. Recent developments on Cr‐based electrocatalysts for the oxygen evolution reaction in alkaline media. ChemCatChem 2022. [DOI: 10.1002/cctc.202200364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sreejith P Babu
- North-West University Potchefstroom Campus: North-West University Chemical Resource Beneficiation, School of Physical and Chemical Sciencesi SOUTH AFRICA
| | - Anzel Falch
- North-West University Chemistry 11 Hoffman street 2531 Potchefstroom SOUTH AFRICA
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50
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Magnetic-Field-Induced Strain Enhances Electrocatalysis of FeCo Alloys on Anode Catalysts for Water Splitting. METALS 2022. [DOI: 10.3390/met12050800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In water splitting, the oxygen evolution reaction (OER) performance of transition metal alloy catalysts needs to be further improved. To solve this problem, the method of an external magnetic field was used to improve the OER catalytic performance of the alloy catalyst. In this paper, FeCo alloys with different composition ratios were prepared by an arc melting method, and OER catalysts with different compositions were obtained by annealing treatment. Under the action of a magnetic field, all three groups of catalysts showed a better catalytic performance than those without a magnetic field. The overpotentials of Fe35Co65, Fe22Co78 and Fe15Co85 at a current density of 20 mA cm−2 were reduced by 12 mV, 6 mV and 2 mV, respectively. It is found that, due to the magnetostrictive properties of FeCo alloys, the catalyst itself will generate strain under the action of a magnetic field, and the existence of strain may be the main reason for the enhanced OER performance of the magnetic field. Therefore, this work provides a new idea for the development of magnetic material catalysts and a magnetic field to improve the performance of catalysts.
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