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Yu X, Lin L, Pei C, Ji S, Sun Y, Wang Y, Kyu Kim J, Seok Park H, Pang H. Immobilizing Bimetallic RuCo Nanoalloys on Few-Layered MXene as a Robust Bifunctional Electrocatalyst for Overall Water Splitting. Chemistry 2024; 30:e202303524. [PMID: 37965774 DOI: 10.1002/chem.202303524] [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: 10/25/2023] [Revised: 11/15/2023] [Accepted: 11/15/2023] [Indexed: 11/16/2023]
Abstract
Doping Co atoms into Ru lattices can tune the electronic structure of active sites, and the conductive MXene can adjust the electrical conductivity of catalysts, which are both favorable for improving the electrocatalytic activity of the catalyst for water splitting. Here, ruthenium-cobalt bimetallic nanoalloys coupled with exfoliated Ti3 C2 Tx MXene (RuCo-Ti3 C2 Tx ) have been constructed by ice-templated and thermal activation. Due to the strong interaction between the RuCo nanoalloys and conductive MXene, RuCo-Ti3 C2 Tx not only exhibits an excellent hydrogen evolution reaction (HER) performance with a low overpotential and Tafel slope (60 mV, 34.8 mV dec-1 in 0.5 M H2 SO4 and 52 mV, 38.7 mV dec-1 in 1 M KOH), but also good oxygen evolution reaction (OER) performance in an alkaline electrolyte (266 mV, 111.1 mV dec-1 in 1 M KOH). The assembled RuCo-Ti3 C2 Tx ||RuCo-Ti3 C2 Tx electrolyzer requires a lower potential (1.56 V) than does the Pt/C||RuO2 electrolyzer at 10 mA cm-2 . A boosted catalytic HER activity from immobilizing the RuCo nanoalloys on MXene was unveiled by density functional theory calculations. This study provides a feasible and efficient strategy for developing MXene-based catalysts for overall water splitting.
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Affiliation(s)
- Xu Yu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, P. R. China
| | - Longjie Lin
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, P. R. China
| | - Chengang Pei
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do, 440-746, Republic of Korea
| | - Shenjing Ji
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, P. R. China
| | - Yuanyuan Sun
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, P. R. China
| | - Yang Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, P. R. China
| | - Jung Kyu Kim
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do, 440-746, Republic of Korea
| | - Ho Seok Park
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do, 440-746, Republic of Korea
| | - Huan Pang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, P. R. China
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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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Facile fabrication of hydrangea-like NiSe/FeSe2 nanostructures towards efficient water oxidation. JOURNAL OF SAUDI CHEMICAL SOCIETY 2022. [DOI: 10.1016/j.jscs.2022.101469] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Li Z, Liu D, Lu X, Du M, Chen Z, Teng J, Sha R, Tian L. Boosting oxygen evolution of layered double hydroxide through electronic coupling with ultralow noble metal doping. Dalton Trans 2022; 51:1527-1532. [PMID: 34989735 DOI: 10.1039/d1dt03906g] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Electrocatalytic water oxidation is a rate-determining step in the water splitting process; however, its efficiency is significantly hampered by the limitations of cost-effective electrocatalysts. Here, an advanced Co(OH)2 electrocatalyst with ultralow iridium (Ir) doping is developed to enable outstanding oxygen evolution reaction (OER) properties; that is, in a 1 M KOH medium, an overpotential of only 262 mV is required to achieve a current density of 10 mA cm-2, and a small Tafel slope of 66.9 mV dec-1 is achieved, which is markedly superior to that of the commercial IrO2 catalyst (301 mV@10 mA cm-2; 66.9 mV dec-1). Through the combination of experimental data and a mechanism study, it is disclosed that the high intrinsic OER activity results from the synergistic electron coupling of oxidized Ir and Co(OH)2, which significantly moderate the adsorption energy of the intermediates. Moreover, we have also synthesized Ru-Co(OH)2 nanosheets and demonstrated the universal syntheses of Ir-doped CoM (M = Ni, Fe, Mn, and Zn) layered double hydroxides (LDHs).
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Affiliation(s)
- Zhao Li
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou 221118, PR China.
| | - Dongsheng Liu
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou 221118, PR China.
| | - Xinhua Lu
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou 221118, PR China.
| | - Minglin Du
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou 221118, PR China.
| | - Zhenyang Chen
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou 221118, PR China.
| | - Jingrui Teng
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou 221118, PR China.
| | - Ruiqi Sha
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou 221118, PR China.
| | - Lin Tian
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou 221118, PR China.
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Investigation on microstructural impacts to electrochemical performances of strontium tungstate as efficient bifunctional catalyst for hydrogen and oxygen evolution reactions. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.07.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Ternary FeCoNi alloy nanoparticles embedded in N-doped carbon nanotubes for efficient oxygen evolution reaction electrocatalysis. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.135886] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Tian L, Zhai X, Wang X, Pang X, Li J, Li Z. Morphology and phase transformation of α-MnO2/MnOOH modulated by N-CDs for efficient electrocatalytic oxygen evolution reaction in alkaline medium. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.135823] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Tian L, Qiu G, Shen Y, Wang X, Wang J, Wang P, Song M, Li J, Li T, Zhuang W, Du X. Carbon Quantum Dots Modulated NiMoP Hollow Nanopetals as Efficient Electrocatalysts for Hydrogen Evolution. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b01899] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Lin Tian
- College of Chemistry and Chemical Engneering, Xuzhou University of Technology, Xuzhou 221018, PR China
| | - Guofeng Qiu
- College of Chemistry and Chemical Engneering, Xuzhou University of Technology, Xuzhou 221018, PR China
| | - Yanchao Shen
- College of Chemistry and Chemical Engneering, Xuzhou University of Technology, Xuzhou 221018, PR China
| | - Xiang Wang
- College of Chemistry and Chemical Engneering, Xuzhou University of Technology, Xuzhou 221018, PR China
| | - Ju Wang
- College of Chemistry and Chemical Engneering, Xuzhou University of Technology, Xuzhou 221018, PR China
| | - Peng Wang
- College of Chemistry and Chemical Engneering, Xuzhou University of Technology, Xuzhou 221018, PR China
| | - Ming Song
- College of Chemistry and Chemical Engneering, Xuzhou University of Technology, Xuzhou 221018, PR China
| | - Jing Li
- College of Chemistry and Chemical Engneering, Xuzhou University of Technology, Xuzhou 221018, PR China
| | - Tongxiang Li
- College of Food (Biology) Engineering, Xuzhou University of Technology, Xuzhou 221018, PR China
| | - Wenchang Zhuang
- College of Chemistry and Chemical Engneering, Xuzhou University of Technology, Xuzhou 221018, PR China
| | - Xihua Du
- College of Chemistry and Chemical Engneering, Xuzhou University of Technology, Xuzhou 221018, PR China
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