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Single noble metals (Pd, Pt and Ir) anchored Janus MoSSe monolayers: Efficient oxygen reduction/evolution reaction bifunctional electrocatalysts and harmful gas detectors. J Colloid Interface Sci 2022; 616:177-188. [DOI: 10.1016/j.jcis.2022.02.054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 02/07/2022] [Accepted: 02/12/2022] [Indexed: 12/25/2022]
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Zhang B, Li T, Huang L, Ren Y, Sun D, Pang H, Yang J, Xu L, Tang Y. In situ immobilization of Fe/Fe 3C/Fe 2O 3 hollow hetero-nanoparticles onto nitrogen-doped carbon nanotubes towards high-efficiency electrocatalytic oxygen reduction. NANOSCALE 2021; 13:5400-5409. [PMID: 33666208 DOI: 10.1039/d1nr00078k] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The rational design of affordable, efficient and robust electrocatalysts towards the oxygen reduction reaction (ORR) is of vital importance for the future advancement of various renewable-energy technologies. Herein, we develop a feasible and delicate synthesis of Fe/Fe3C/Fe2O3 hollow heterostructured nanoparticles in situ immobilized on highly graphitic nitrogen-doped carbon nanotubes (referred to as Fe/Fe3C/Fe2O3@N-CNTs hereafter) via a simple hydrogel-bridged pyrolysis strategy. The simultaneous consideration of interfacial manipulation and nanocarbon hybridization endows the formed Fe/Fe3C/Fe2O3@N-CNTs with sufficiently well-dispersed and firmly immobilized active components, regulated electronic configuration, enhanced electrical conductivity, multidimensional mass transport channels, and remarkable structural stability. Consequently, benefiting from the compositional synergy and architectural superiority, the as-obtained Fe/Fe3C/Fe2O3@N-CNTs exhibit excellent ORR catalytic activity, impressive durability and superior selectivity in an alkaline electrolyte, outperforming the commercial Pt/C catalyst and a majority of the previously reported Fe-based catalysts. Furthermore, the rechargeable Zn-air battery using Fe/Fe3C/Fe2O3@N-CNTs + RuO2 as an air-cathode exhibits a higher power density, larger specific capacity and better cycling stability as compared with the state-of-the-art Pt/C + RuO2 counterpart. The explored hydrogel-bridged pyrolysis strategy enabling the concurrent heterointerface construction, nanostructure engineering and nanocarbon hybridization may inspire the future design of high-efficiency electrocatalysts for diverse renewable energy applications.
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Affiliation(s)
- Binbin Zhang
- Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China.
| | - Tongfei Li
- Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China.
| | - Longzhen Huang
- Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China.
| | - Yiping Ren
- Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China.
| | - Dongmei Sun
- Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China.
| | - Huan Pang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225009, China
| | - Jun Yang
- Nanjing IPE Institute of Green Manufacturing Industry, Nanjing, 211100, China and State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Lin Xu
- Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China.
| | - Yawen Tang
- Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China.
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He L, Zhong J, Liu Y, Zhou Z, Yang W. Structural Advantage Induced by Zinc Gluconate: Hierarchically Porous Carbon with In‐Situ Growth Iron‐Inside Carbon Nanotubes for Efficient Oxygen Reduction Reaction. ChemistrySelect 2020. [DOI: 10.1002/slct.202003529] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Li‐Juan He
- College of Materials Science and Engineering Huaqiao University Fujian Xiamen 361021 P.R. China
| | - Jia‐Qiang Zhong
- College of Materials Science and Engineering Huaqiao University Fujian Xiamen 361021 P.R. China
| | - Yu‐Min Liu
- College of Materials Science and Engineering Huaqiao University Fujian Xiamen 361021 P.R. China
| | - Zi‐Jian Zhou
- College of Materials Science and Engineering Huaqiao University Fujian Xiamen 361021 P.R. China
| | - Wei‐hua Yang
- College of Materials Science and Engineering Huaqiao University Fujian Xiamen 361021 P.R. China
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