Study on Nitrogen-Doped Biomass Carbon-Based Composite Cobalt Selenide Heterojunction and Its Electrocatalytic Performance
With the increasing utilization of clean energy, the development and utilization of hydrogen energy has become a research topic of great significance. Cobalt selenide (CS) is an electrocatalyst with great potential for oxygen evolution reaction (OER). In this paper, a nitrogen-doped biomass carbon (...
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| Format: | Article |
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MDPI AG
2023-04-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/4/767 |
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| author | Tengfei Meng Hongjin Shi Feng Ao Peng Wang Longyao Wang Lan Wang Yujun Zhu Yunxiang Lu Yupei Zhao |
| author_facet | Tengfei Meng Hongjin Shi Feng Ao Peng Wang Longyao Wang Lan Wang Yujun Zhu Yunxiang Lu Yupei Zhao |
| author_sort | Tengfei Meng |
| collection | DOAJ |
| description | With the increasing utilization of clean energy, the development and utilization of hydrogen energy has become a research topic of great significance. Cobalt selenide (CS) is an electrocatalyst with great potential for oxygen evolution reaction (OER). In this paper, a nitrogen-doped biomass carbon (1NC@3)-based composite cobalt selenide (CS) heterojunction was prepared via a solvothermal method using kelp as the raw material. Structural, morphological, and electrochemical analyses were conducted to evaluate its performance. The electrochemical test results demonstrate that the overpotential of the CS/1NC@3 catalyst in the OER process was 292 mV, with a Tafel slope of 98.71 mV·dec<sup>−1</sup> at a current density of 10 mA·cm<sup>−2</sup>. The electrochemical performance of the CS/1NC@3 catalyst was further confirmed by theoretical calculations, which revealed that the presence of the biomass carbon substrate enhanced the charge transport speed of the OER process and promoted the OER process. This study provides a promising strategy for the development of efficient electrocatalysts for OER applications. |
| first_indexed | 2024-03-11T04:45:09Z |
| format | Article |
| id | doaj.art-e8716cece47549bd88305d1b61b8069d |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-11T04:45:09Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-e8716cece47549bd88305d1b61b8069d2023-11-17T20:27:25ZengMDPI AGMetals2075-47012023-04-0113476710.3390/met13040767Study on Nitrogen-Doped Biomass Carbon-Based Composite Cobalt Selenide Heterojunction and Its Electrocatalytic PerformanceTengfei Meng0Hongjin Shi1Feng Ao2Peng Wang3Longyao Wang4Lan Wang5Yujun Zhu6Yunxiang Lu7Yupei Zhao8School of Petrochemical Engineering, Changzhou University, Changzhou 212006, ChinaSchool of Petrochemical Engineering, Changzhou University, Changzhou 212006, ChinaSchool of Petrochemical Engineering, Changzhou University, Changzhou 212006, ChinaSchool of Petrochemical Engineering, Changzhou University, Changzhou 212006, ChinaSchool of Petrochemical Engineering, Changzhou University, Changzhou 212006, ChinaSchool of Petrochemical Engineering, Changzhou University, Changzhou 212006, ChinaDepartment of Pharmaceutical and Biomedical Engineering, Clinical College of Anhui Medical University, Hefei 230031, ChinaSchool of Chemical and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, ChinaSchool of Petrochemical Engineering, Changzhou University, Changzhou 212006, ChinaWith the increasing utilization of clean energy, the development and utilization of hydrogen energy has become a research topic of great significance. Cobalt selenide (CS) is an electrocatalyst with great potential for oxygen evolution reaction (OER). In this paper, a nitrogen-doped biomass carbon (1NC@3)-based composite cobalt selenide (CS) heterojunction was prepared via a solvothermal method using kelp as the raw material. Structural, morphological, and electrochemical analyses were conducted to evaluate its performance. The electrochemical test results demonstrate that the overpotential of the CS/1NC@3 catalyst in the OER process was 292 mV, with a Tafel slope of 98.71 mV·dec<sup>−1</sup> at a current density of 10 mA·cm<sup>−2</sup>. The electrochemical performance of the CS/1NC@3 catalyst was further confirmed by theoretical calculations, which revealed that the presence of the biomass carbon substrate enhanced the charge transport speed of the OER process and promoted the OER process. This study provides a promising strategy for the development of efficient electrocatalysts for OER applications.https://www.mdpi.com/2075-4701/13/4/767cobalt selenideelectrocatalysisbiomassDFT |
| spellingShingle | Tengfei Meng Hongjin Shi Feng Ao Peng Wang Longyao Wang Lan Wang Yujun Zhu Yunxiang Lu Yupei Zhao Study on Nitrogen-Doped Biomass Carbon-Based Composite Cobalt Selenide Heterojunction and Its Electrocatalytic Performance Metals cobalt selenide electrocatalysis biomass DFT |
| title | Study on Nitrogen-Doped Biomass Carbon-Based Composite Cobalt Selenide Heterojunction and Its Electrocatalytic Performance |
| title_full | Study on Nitrogen-Doped Biomass Carbon-Based Composite Cobalt Selenide Heterojunction and Its Electrocatalytic Performance |
| title_fullStr | Study on Nitrogen-Doped Biomass Carbon-Based Composite Cobalt Selenide Heterojunction and Its Electrocatalytic Performance |
| title_full_unstemmed | Study on Nitrogen-Doped Biomass Carbon-Based Composite Cobalt Selenide Heterojunction and Its Electrocatalytic Performance |
| title_short | Study on Nitrogen-Doped Biomass Carbon-Based Composite Cobalt Selenide Heterojunction and Its Electrocatalytic Performance |
| title_sort | study on nitrogen doped biomass carbon based composite cobalt selenide heterojunction and its electrocatalytic performance |
| topic | cobalt selenide electrocatalysis biomass DFT |
| url | https://www.mdpi.com/2075-4701/13/4/767 |
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