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Xu X, Mo Q, Zheng K, Xu Z, Cai H. Multifunctional Ni 3S 2@NF-based electrocatalysts for efficient and durable electrocatalytic water splitting. Dalton Trans 2023; 52:12378-12389. [PMID: 37593924 DOI: 10.1039/d3dt02035e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
Transition-metal sulfides (TMSs) have indeed drawn dramatic interest as a potential species of electrocatalysts by virtue of their unique structural features. However, their poor stability and inherent activity have impeded their use in electrocatalytic water splitting. Here, we provide a rational design of a hierarchical nanostructured electrocatalyst containing CeOx-decorated NiCo-layered double hydroxide (LDH) coupled with Ni3S2 protrusions formed on a Ni foam (NF). Specifically, the as-prepared electrocatalyst, denoted as Ni2Co1 LDH-CeOx/Ni3S2@NF, presents only 250 and 300 mV overpotential at ±100 mA cm-2, respectively, along with the Tafel slope values of 92 and 52 mV dec-1, as well remarkable long-term life for water splitting in an alkaline electrolyte. Based on systematic experiments and theoretical analysis, the superior electrocatalytic property in terms of Ni2Co1 LDH-CeOx/Ni3S2@NF can be imputed to the following reasons: the porous framework of Ni3S2@NF provides a largely surface area and high conductivity; the NiCo LDH nanosheets provide enriched active sites and favorable adsorption ability; the oxygen-vacancy-rich CeOx optimizes the electronic configuration. Overall, these factors work synergistically to expedite the catalytic kinetics of splitting water. Our work concentrates on a rational interface to devise efficient, multifunctional, and serviceable electrocatalysts for future applications.
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Affiliation(s)
- Xiaomei Xu
- School of Chemistry and Chemical Engineering, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China.
| | - Qiaoling Mo
- Center of analysis and testing, Nanchang University, 235 Nanjing east road, Nanchang 330029, China.
| | - Kuangqi Zheng
- School of Future Technology, Nanchang University, 999 Xue fu Avenue, Nanchang 330031, China
| | - Zhaodi Xu
- Center of analysis and testing, Nanchang University, 235 Nanjing east road, Nanchang 330029, China.
| | - Hu Cai
- School of Chemistry and Chemical Engineering, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China.
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2
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Shen L, Tang S, Yu L, Huang Q, Zhou T, Yang S, Yu H, Xiong H, Xu M, Zhong X, Zhang L. Efficient ternary CeFeCoP bifunctional electrocatalyst for overall water splitting. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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3
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Fang K, Wu T, Hou B, Lin H. Green synthesis of Ni3S2 nanoparticles from a nontoxic sulfur source for urea electrolysis with high catalytic activity. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140511] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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4
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Zhang L, Wang B, Hu J, Huang X, Ma W, Li N, Wågberg T, Hu G. Nickel-induced charge redistribution in Ni-Fe/Fe 3C@nitrogen-doped carbon nanocage as a robust Mott-Schottky bi-functional oxygen catalyst for rechargeable Zn-air battery. J Colloid Interface Sci 2022; 625:521-531. [PMID: 35749847 DOI: 10.1016/j.jcis.2022.06.067] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/01/2022] [Accepted: 06/15/2022] [Indexed: 12/19/2022]
Abstract
Designing earth-abundant and advanced bi-functional oxygen electrodes for efficient oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are extremely urgent but still ambiguous. Thus, metal-semiconductor nanohybrids were developed with functionally integrating ORR-active Ni species, OER-active Fe/Fe3C components, and multifunctional N-doped carbon (NDC) support. Expectantly, the resulted NDC nanocage embedded with Ni-Fe alloy and Fe3C particles, as assembled Mott-Schottky-typed catalyst, delivered a promoted half-wave potential of 0.904 V for ORR and a low overpotential of 315 mV at 10 mA/cm2 for OER both in alkaline media, outperforming those of commercial Pt/C and RuO2 counterparts. Most importantly, the optimized Ni-Fe/Fe3C@NDC sample also afforded a peak power density of 267.5 mW/cm2 with a specific capacity of 773.8 mAh/gZn and excellent durability over 80 h when used as the air electrode in rechargeable Zn-air batteries, superior to the state-of-the-art bi-functional catalysts. Ultraviolet photoelectron spectroscopy revealed that the introduction of Ni into the Fe/Fe3C@NDC component could well manipulate the electronic structure of the designed electrocatalyst, leading to an effective built-in electric field established by the Mott-Schottky heterojunction to expedite the continuous interfacial charge-transfer and thus significantly promote the utilization of electrocatalytic active sites. Therefore, this work provides an avenue for the designing and developing robust and durable Mott-Schottky-typed bi-functional catalysts for promising energy conversion.
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Affiliation(s)
- Lei Zhang
- School of Materials Science and Engineering, School of Chemical Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan, Anhui 232001, PR China
| | - Bin Wang
- School of Materials Science and Engineering, School of Chemical Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan, Anhui 232001, PR China.
| | - Jinsong Hu
- School of Materials Science and Engineering, School of Chemical Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan, Anhui 232001, PR China.
| | - Xinhua Huang
- School of Materials Science and Engineering, School of Chemical Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan, Anhui 232001, PR China
| | - Wenyu Ma
- School of Materials Science and Engineering, School of Chemical Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan, Anhui 232001, PR China
| | - Nianpeng Li
- School of Materials Science and Engineering, School of Chemical Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan, Anhui 232001, PR China; Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming, Yunnan 650504, PR China
| | - Thomas Wågberg
- Department of Physics, Umeå University, Umeå S-901 87, Sweden
| | - Guangzhi Hu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming, Yunnan 650504, PR China; Department of Physics, Umeå University, Umeå S-901 87, Sweden.
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5
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Polydopamine Decorated Ru-Ni(OH)2 Nanosheets for Enhanced Performance of Hydrogen Evolution in Alkaline Media. Catal Letters 2022. [DOI: 10.1007/s10562-022-04036-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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6
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Cheng PY, Ting YC, Cheng CC, Senthil Raja D, Lin SH, Yeh YX, Su JT, Lu SY. Nitrogen-doped carbon armored Cobalt oxide hollow nanocubes electrochemically anchored on fluorine-doped tin oxide substrate for acidic oxygen evolution reaction. J Colloid Interface Sci 2022; 623:327-336. [PMID: 35594591 DOI: 10.1016/j.jcis.2022.05.036] [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: 03/26/2022] [Revised: 04/25/2022] [Accepted: 05/06/2022] [Indexed: 11/19/2022]
Abstract
Developments of non-precious metal based active and stable catalysts are of great importance and challenge to green hydrogen production from acidic electrocatalytic water splitting. Design of composite catalysts with synergy between active and stable components proves to be a promising approach. Herein, N-doped carbon armored Co3O4 hollow nanocubes electrochemically anchored on fluorine-doped tin oxide (FTO) substrates are developed as efficient and stable catalysts for acidic oxygen evolution reactions. Co3O4 acts as the active component with N-doped carbon coating layer serving as the stable protection component, shielding Co3O4 from direct attack of anodic dissolution. Electrochemical fixation offers firm holding of the composite catalyst onto acid-tolerant FTO substrates and hollow nanocubes serve as nano-reactors for confined fast reactions. Under optimal conditions, the composite catalyst achieves an overpotential of 465 mV at 10 mA cm-2 in 0.5 M H2SO4, and stays stable for 12 hr with a 10% increment in applied potentials.
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Affiliation(s)
- Po-Yin Cheng
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Yu-Chieh Ting
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Chih-Chieh Cheng
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Duraisamy Senthil Raja
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Shin-Hong Lin
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Yong-Xian Yeh
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Jing-Ting Su
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Shih-Yuan Lu
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan.
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Yang C, Zhou L, Yan T, Bian Y, Hu Y, Wang C, Zhang Y, Shi Y, Wang D, Zhen Y, Fu F. Synergistic mechanism of Ni(OH) 2/NiMoS heterostructure electrocatalyst with crystalline/amorphous interfaces for efficient hydrogen evolution over all pH ranges. J Colloid Interface Sci 2022; 606:1004-1013. [PMID: 34487923 DOI: 10.1016/j.jcis.2021.08.090] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/04/2021] [Accepted: 08/13/2021] [Indexed: 01/08/2023]
Abstract
Designing and fabricating efficient electrocatalysts is a practical step toward the commercial application of the efficient hydrogen evolution reaction (HER) over all pH ranges. Herein, novel Ti@Ni(OH)2-NiMoS heterostructure with interface between crystalline Ni(OH)2 and amorphous NiMoS was rationally designed and fabricated on Ti mesh (denoted as Ti@Ni(OH)2-NiMoS). Acid etching and calcination experiments helped in accurate elucidation of the synergistic mechanism as well as the vital role on crystalline Ni(OH)2 and amorphous NiMoS. In acidic solutions, the HER performance of Ti@Ni(OH)2-NiMoS was mainly attributed to the amorphous NiMoS. In neutral, alkaline, and natural seawater solutions, the HER performance was mainly determined by the synergistic interface behaviors between the Ni(OH)2 and NiMoS. The crystalline Ni(OH)2 accelerated water dissociation kinetics, while the amorphous NiMoS provided abundant active sites and allowed for fast electron transfer rates. To deliver current densities of 10 mA·cm-2 in acidic, neutral, alkaline, and natural seawater solutions, the Ti@Ni(OH)2-NiMoS required overpotentials of 138, 198, 180 and 371 mV, respectively. This paper provides general guidelines for designing efficient electrocatalyst with crystalline/amorphous interfaces for efficient hydrogen evolution over all-pH ranges.
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Affiliation(s)
- Chunming Yang
- Research Institute of Comprehensive Energy Industry Technology, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, Shaanxi, China
| | - Lihai Zhou
- Research Institute of Comprehensive Energy Industry Technology, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, Shaanxi, China
| | - Ting Yan
- Research Institute of Comprehensive Energy Industry Technology, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, Shaanxi, China
| | - Yujie Bian
- Research Institute of Comprehensive Energy Industry Technology, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, Shaanxi, China
| | - Yujuan Hu
- Research Institute of Comprehensive Energy Industry Technology, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, Shaanxi, China
| | - Chuantao Wang
- Research Institute of Comprehensive Energy Industry Technology, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, Shaanxi, China
| | - Yantu Zhang
- Research Institute of Comprehensive Energy Industry Technology, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, Shaanxi, China
| | - Youmin Shi
- Research Institute of Comprehensive Energy Industry Technology, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, Shaanxi, China
| | - Danjun Wang
- Research Institute of Comprehensive Energy Industry Technology, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, Shaanxi, China.
| | - Yanzhong Zhen
- Research Institute of Comprehensive Energy Industry Technology, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, Shaanxi, China.
| | - Feng Fu
- Research Institute of Comprehensive Energy Industry Technology, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, Shaanxi, China.
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Zhang L, Zhu Y, Nie Z, Li Z, Ye Y, Li L, Hong J, Bi Z, Zhou Y, Hu G. Co/MoC Nanoparticles Embedded in Carbon Nanoboxes as Robust Trifunctional Electrocatalysts for a Zn-Air Battery and Water Electrocatalysis. ACS NANO 2021; 15:13399-13414. [PMID: 34346677 DOI: 10.1021/acsnano.1c03766] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
To meet the application needs of rechargeable Zn-air battery and electrocatalytic overall water splitting (EOWS), developing high-efficiency, cost-effective, and durable trifunctional catalysts for the hydrogen evolution reaction (HER), oxygen evolution, and reduction reaction (OER and ORR) is extremely paramount yet challenging. Herein, the interface engineering concept and nanoscale hollowing design were proposed to fabricate N-doping carbon nanoboxes confined with Co/MoC nanoparticles. Uniform zeolitic imidazolate framework nanocube was employed as the starting material to construct the trifunctional electrocatalyst through the conformal polydopamine-Mo layer coating and the subsequent pyrolysis treatment. The Co@IC/MoC@PC catalyst displayed superior electrochemical ORR performances with a positive half-wave potential of 0.875 V and a high limiting current density of 5.89 mA/cm2. When practically employed as an electrocatalyst in regenerative Zn-air battery, a high specific capacity of 728 mAh/g, a large peak power density of 221 mW/cm2, a high open-circuit voltage of 1.482 V, and a low charge/discharge voltage gap of 0.41 V were obtained. Moreover, its practicability was further exploited by overall water splitting, affording low overpotentials of 277 and 68 mV at 10 mA/cm2 for the OER and HER in 1 M KOH solution, respectively, and a decent operating potential of 1.57 V for EOWS. Ultraviolet photoelectron spectroscopy and density functional theory calculation revealed that the Co/MoC interface synergistically facilitated the charge-transfer, thereby contributing to the enhancements of electrocatalytic ORR/OER/HER processes. More importantly, this catalyst design concept can offer some interesting prospects for the construction of outstanding trifunctional catalysts toward various energy conversion and storage devices.
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Affiliation(s)
- Lei Zhang
- School of Materials Science and Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan, Anhui 232001, P. R. China
| | - Yuanxin Zhu
- School of Materials Science and Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan, Anhui 232001, P. R. China
| | - Zhicheng Nie
- School of Materials Science and Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan, Anhui 232001, P. R. China
| | - Ziyao Li
- School of Materials Science and Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan, Anhui 232001, P. R. China
| | - Ying Ye
- School of Materials Science and Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan, Anhui 232001, P. R. China
| | - Luhan Li
- School of Materials Science and Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan, Anhui 232001, P. R. China
| | - Jie Hong
- School of Materials Science and Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan, Anhui 232001, P. R. China
| | - Zenghui Bi
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming, Yunnan 650504, P. R. China
| | - Yingtang Zhou
- National Engineering Research Center for Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, Zhejiang 316004, P. R. China
| | - Guangzhi Hu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming, Yunnan 650504, P. R. China
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Yin Z, Liang J, Xu H, Luo H, Deng D, Lu W, Long S. MoO42− doped Ni-Fe-Se nanospheres electrodeposited on nickel foam as effective electrocatalysts for oxygen evolution reaction. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115501] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Feng Z, Sui Y, Sun Z, Qi J, Wei F, Ren Y, Zhan Z, Zhou M, Meng D, Zhang L, Ma L, Wang Q. Controllable synthesis of flower-like Mn-Co-P nanosheets as bifunctional electrocatalysts for overall water splitting. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126265] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Zhang X, Zhang L, Zhu Y, Li Z, Wang Y, Wågberg T, Hu G. Increasing Electrocatalytic Oxygen Evolution Efficiency through Cobalt-Induced Intrastructural Enhancement and Electronic Structure Modulation. CHEMSUSCHEM 2021; 14:467-478. [PMID: 33043594 PMCID: PMC7821219 DOI: 10.1002/cssc.202001975] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/22/2020] [Indexed: 05/09/2023]
Abstract
Electrolytic water splitting using surplus electricity represents one of the most cost-effective and promising strategies for hydrogen production. The high overpotential of the oxygen-evolution reaction (OER) caused by the multi-electron transfer process with a high chemical energy barrier, however, limits its competitiveness. Here, a highly active and stable OER electrocatalyst was designed through a cobalt-induced intrastructural enhancement strategy combined with suitable electronic structure modulation. A carved carbon nanobox was embedded with tri-metal phosphide from a uniform Ni-Co-Fe Prussian blue analogue (PBA) nanocube by sequential NH3 ⋅ H2 O etching and thermal phosphorization. The sample exhibited an OER activity in an alkaline medium, reaching a current density of 10 mA cm-2 at an overpotential of 182 mV and displayed a small Tafel slope of 47 mV dec-1 , superior to the most recently reported OER electrocatalysts. Moreover, it showed impressive electrocatalytic durability, increasing by approximately 2.7 % of operating voltage after 24 h of continuous testing. The excellent OER activity and stability are ascribed to a favorable transfer of mass and charge provided by the porous carbon shell, synergistic catalysis between the three-component metal phosphides originating from appropriate electronic structure modulation, more exposed catalytic sites on the hollow structure, and chainmail catalysis resulting from the carbon protective layer. It is foreseen that this successfully demonstrated design concept can be easily extended to other heterogeneous catalyst designs.
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Affiliation(s)
- Xin Zhang
- School of Materials Science and EngineeringAnhui University of Science and TechnologyHuainan, Anhui232001P. R. China
| | - Lei Zhang
- School of Materials Science and EngineeringAnhui University of Science and TechnologyHuainan, Anhui232001P. R. China
| | - Yuanxin Zhu
- School of Materials Science and EngineeringAnhui University of Science and TechnologyHuainan, Anhui232001P. R. China
| | - Ziyao Li
- School of Materials Science and EngineeringAnhui University of Science and TechnologyHuainan, Anhui232001P. R. China
| | - Yong Wang
- Institute for Ecological Research and Pollution Control of Plateau LakesSchool of Ecology and Environmental ScienceYunnan UniversityKunming650504P. R. China
| | | | - Guangzhi Hu
- Institute for Ecological Research and Pollution Control of Plateau LakesSchool of Ecology and Environmental ScienceYunnan UniversityKunming650504P. R. China
- Department of PhysicsUmeå UniversityUmeå901 87Sweden
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Yang Y, Meng H, Zhang Y, Li Z, Zhang Z, Hu Z. Interfaces modulation strategy to synthesize bifunctional electrocatalyst for highly efficient overall water splitting. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125452] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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13
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Ashraf MA, Yang Y, Zhang D, Pham BT. Bifunctional and binder-free S-doped Ni-P nanospheres electrocatalyst fabricated by pulse electrochemical deposition method for overall water splitting. J Colloid Interface Sci 2020; 577:265-278. [DOI: 10.1016/j.jcis.2020.05.060] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 05/14/2020] [Accepted: 05/15/2020] [Indexed: 11/16/2022]
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14
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Zhang X, Zhang L, Zhu GG, Zhu YX, Lu SY. Mixed Metal Phosphide Chainmail Catalysts Confined in N-Doped Porous Carbon Nanoboxes as Highly Efficient Water-Oxidation Electrocatalysts with Ultralow Overpotentials and Tafel Slopes. ACS APPLIED MATERIALS & INTERFACES 2020; 12:7153-7161. [PMID: 31913590 DOI: 10.1021/acsami.9b19504] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Electrocatalytic hydrogen production driven by surplus electric energies is considered a promising sustainable process for hydrogen supply. The high overpotential and low energy-conversion efficiency caused by the slow kinetics of the four-electron transfer oxygen-evolution reaction (OER), however, hamper its competitiveness. Herein, a highly stable, efficient OER catalyst was developed, taking the effects of both composition and nanostructure into account for the catalyst design. N-doped carbon-armored mixed metal phosphide nanoparticles confined in N-doped porous carbon nanoboxes, a particle-in-box nanostructure, were synthesized from monodisperse Ni3[Fe(CN)6]2·H2O nanocubes through sequential conformal polydopamine coating, ammonia etching, and thermal phosphorization. The product exhibited outstanding catalytic abilities for the OER in 1.0 M KOH, delivering 10, 100, and 250 mA/cm2 at ultrasmall overpotentials of 203, 242, and 254 mV, respectively, with an ultrasmall Tafel slope of 38 mV/dec, outperforming most recently reported top-notch iron-group-based OER catalysts. The long-term stability was also excellent, showing a small chronopotentiometric decay of 2.5% over a 24 h operation at 50 mA/cm2. The enhanced catalytic efficiency and stability may be attributable to the unique particle-in-box structure as a nanoreactor offering a local, fast reaction environment, the conductive N-doped porous carbon shell for fast charge and mass transport, the synergistic effect between multicomponent metal phosphides for enhanced intrinsic activities, and the carbon protection layer to prevent/delay the catalyst core from being deactivated. This combined particle-in-box and chainmail design concept for electrocatalysts is unique and advantageous and may be readily applied to the general field of heterogeneous reactions.
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Affiliation(s)
- Xin Zhang
- School of Materials Science and Engineering , Anhui University of Science and Technology , Huainan 232001 , Anhui , P. R. China
| | - Lei Zhang
- School of Materials Science and Engineering , Anhui University of Science and Technology , Huainan 232001 , Anhui , P. R. China
| | - Guo-Gang Zhu
- School of Materials Science and Engineering , Anhui University of Science and Technology , Huainan 232001 , Anhui , P. R. China
| | - Yuan-Xin Zhu
- School of Materials Science and Engineering , Anhui University of Science and Technology , Huainan 232001 , Anhui , P. R. China
| | - Shih-Yuan Lu
- Department of Chemical Engineering , National Tsing Hua University , Hsinchu 30013 , Taiwan
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