2·g-1），MnO-Co 納米晶/多孔碳顯示出優(yōu)異的電化學(xué)電容（1 A·g-1時(shí)為146 F·g-1）和循環(huán)穩(wěn)定性，循環(huán)1000次后，比容量仍保持在 99.4%。"/>

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高電容電極材料MnO-Co納米晶修飾多孔生物碳的簡易合成
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1.蘇州科技大學(xué) 江蘇省環(huán)境功能材料重點(diǎn)實(shí)驗(yàn)室，江蘇 蘇州 215009;2.蘇州科技大學(xué) 材料科學(xué)與工程學(xué)院，江蘇 蘇州 215009;3.蘇州科技大學(xué) 江蘇水處理技術(shù)與材料協(xié)同創(chuàng)新中心，江蘇 蘇州 215009;4.江蘇省陶瓷研究所有限公司，江蘇 宜興 214221;5.蘇州市環(huán)境科學(xué)研究所，江蘇 蘇州 215007

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基金項(xiàng)目:

Natural Science Foundation of Jiangsu Province (BK20180103, BK20180971), Science and Technology Development Project of Suzhou (SS202036)


Facile Synthesis of Porous Biocarbon Decorated with MnO-Co Nanocrystals for High-Capacitance Electrodes
Author:
Affiliation:

1.Jiangsu Key Laboratory for Environment Functional Materials, Suzhou University of Science and Technology, Suzhou 215009, China;2.School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China;3.Jiangsu Collaborative Innovation Center of Technology and Material for Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China;4.Jiangsu Province Ceramics Research Institute Co., Ltd, Yixing 214221, China;5.Suzhou Institute of Environmental Science, Suzhou 215007, China

Fund Project:

Natural Science Foundation of Jiangsu Province (BK20180103, BK20180971); Science and Technology Development Project of Suzhou (SS202036)

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    摘要:

    隨著化石燃料的迅速枯竭和一系列環(huán)境問題的出現(xiàn)，開發(fā)和利用新型電化學(xué)儲能裝置已迫在眉睫，而電極材料的設(shè)計(jì)、制備和優(yōu)化是決定超級電容器性能的關(guān)鍵因素。采用水熱法將蜀葵秸稈轉(zhuǎn)化為多孔碳基質(zhì)，并在其上錨定了MnO和Co納米晶。結(jié)果表明，制備的生物碳具有多孔結(jié)構(gòu)和良好的電子傳輸特性，而其上的納米晶MnO-Co則具有高電容。由于獨(dú)特的納米碳骨架結(jié)構(gòu)和較大的比表面積（345.9 m2·g-1），MnO-Co 納米晶/多孔碳顯示出優(yōu)異的電化學(xué)電容（1 A·g-1時(shí)為146 F·g-1）和循環(huán)穩(wěn)定性，循環(huán)1000次后，比容量仍保持在 99.4%。

    Abstract:

    With the rapid depletion of fossil fuels and a series of environmental problems, it is urgent to develop and to utilize new electrochemical energy storage devices, and the design, preparation and optimization of electrode materials are key factors to determine the performance of supercapacitors. Hydrothermal method was used to convert hollyhock stalks into porous carbon matrix with MnO and Co nanocrystals anchored on it. Results show that the prepared biocarbon has porous structure and good electron transport properties, and the nanosrystal MnO-Co on it has high capacitance. Due to the unique nanostructure of carbon skeleton and large specific surface area (345.9 m2·g-1), MnO-Co nanocrystal/porous carbon shows excellent electrochemical capacitance (146 F·g-1 at 1 A·g-1) and cycle stability. After 1000 cycles, the specific capacity still remains 99.4%.

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徐楊,劉高尚,劉成寶,鄭磊之,陳豐,錢君超,邱永斌,孟憲榮,陳志剛.高電容電極材料MnO-Co納米晶修飾多孔生物碳的簡易合成[J].稀有金屬材料與工程,2024,53(7):1855~1862.[Xu Yang, Liu Gaoshang, Liu Chengbao, Zheng Leizhi, Chen Feng, Qian Junchao, Qiu Yongbin, Meng Xianrong, Chen Zhigang. Facile Synthesis of Porous Biocarbon Decorated with MnO-Co Nanocrystals for High-Capacitance Electrodes[J]. Rare Metal Materials and Engineering,2024,53(7):1855~1862.]
DOI：10.12442/j. issn.1002-185X. E20230043

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  • 收稿日期:2023-10-11
  • 最后修改日期:2024-01-15
  • 錄用日期:2024-01-16
  • 在線發(fā)布日期: 2024-07-16
  • 出版日期: 2024-07-12