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Cheng K, Jiang D, Cai S, Li S, Wang Y. Bamboo-like nitrogen-doped carbon supported chlorine-doped Fe 2P as an antibacterial oxygen reduction catalyst. NANOSCALE 2024; 16:8462-8469. [PMID: 38578632 DOI: 10.1039/d4nr00133h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Bio-inspiration and biomimetics offer guidance for designing and synthesizing advanced catalysts for the oxygen reduction reaction (ORR) in microbial fuel cells (MFCs). Herein, a chlorine-doped Fe2P supported by nitrogen-doped carbon (Cl-Fe2P/NC) catalyst was designed and prepared based on imitating the bamboo structure. The electronegative chlorine captured the electron transfer from Fe2P and transferred it to NC through carbon nanotubes (CNTs). The antibacterial chlorine inhibited the cathode biofilm formation to enhance the ion transport. Cl-Fe2P/NC achieved a half-wave potential of 0.91 V and an onset potential of 0.99 V versus a reversible hydrogen electrode. After 500 h of reaction, the MFCs assembled by the Cl-Fe2P/NC cathode achieved a maximum power density of 1505 mW m-2. This work provides insights into the design of advanced materials through bio-inspiration and biomimicry.
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Affiliation(s)
- Kai Cheng
- Research Center for Nano Photoelectrochemistry and Devices, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
- Yangtze River Delta Carbon Neutrality Strategy Development Institute, Southeast University, Nanjing 210096, China
| | - Demin Jiang
- Research Center for Nano Photoelectrochemistry and Devices, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
- Yangtze River Delta Carbon Neutrality Strategy Development Institute, Southeast University, Nanjing 210096, China
| | - Sainan Cai
- Research Center for Nano Photoelectrochemistry and Devices, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
- Yangtze River Delta Carbon Neutrality Strategy Development Institute, Southeast University, Nanjing 210096, China
| | - Shikuo Li
- School of Material Science and Engineering, Anhui University, Hefei, 230601, China.
| | - Yuqiao Wang
- Research Center for Nano Photoelectrochemistry and Devices, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
- Yangtze River Delta Carbon Neutrality Strategy Development Institute, Southeast University, Nanjing 210096, China
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Chen Y, Wu H, Tang N, Zhang Y, Wang Y. A NiCo 2S 4 octahedral configuration doped by Mn, Zn and Cu for the oxygen evolution reaction. Chem Commun (Camb) 2024; 60:1751-1753. [PMID: 38249108 DOI: 10.1039/d3cc06171j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Transition metals with similar atomic radius were used for doping spinel NiCo2S4 to adjust the octahedral configuration. Mn dopants adjusted the morphology and surface charge distribution, and optimized the electron transport and catalytic activity of the surface site. Mn-NiCo2S4 showed an OER overpotential of 269 mV and water splitting voltage of 1.59 V.
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Affiliation(s)
- Yiting Chen
- Research Center for Nano Photoelectrochemistry and Devices, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
- Yangtze River Delta Carbon Neutrality Strategy Development Institute, Southeast University, Nanjing 210096, China
| | - Hongyan Wu
- Research Center for Nano Photoelectrochemistry and Devices, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
- College of Textile Science and Engineering (International Silk College), Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Ning Tang
- College of Textile Science and Engineering (International Silk College), Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Yong Zhang
- College of Textile Science and Engineering (International Silk College), Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Yuqiao Wang
- Research Center for Nano Photoelectrochemistry and Devices, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
- Yangtze River Delta Carbon Neutrality Strategy Development Institute, Southeast University, Nanjing 210096, China
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