| 一种家蚕茧衍生具有蜂窝状结构的钴-锰共掺杂碳材料双功能电解水催化剂 |
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| 引用本文： | 张明,李涛,王娟,潘逸,马仕杰,朱罕,杜明亮.一种家蚕茧衍生具有蜂窝状结构的钴-锰共掺杂碳材料双功能电解水催化剂[J].无机化学学报,2018,34(5):942-950. |
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| 作者姓名： | 张明 李涛 王娟 潘逸 马仕杰 朱罕 杜明亮 |
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| 作者单位： | 浙江理工大学材料与纺织学院先进纺织材料与制备技术教育部重点实验室;江南大学化学与材料工程学院合成与生物胶体教育部重点实验室 |
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| 基金项目： | 国家自然科学基金（No.51573166）和浙江省自然科学基金（No.LQ16E020005）资助项目。 |
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| 摘 要： | 通过一步碳化石墨化过程,由家蚕茧制得了一种具有蜂窝状结构的氮钴锰共掺杂碳材料。该材料具有蜂窝状结构和高比表面积,同时由于暴露的钴-锰活性位点以及富含的吡啶氮和石墨氮,3%钴-锰/蚕茧的碳材料(3%Co-Mn/SCC)显示了高析氢反应活性,其初始电位和10 m A·cm~(-2)过电位分别只有121和155 m V,Tafel斜率为130 m V·dec~(-1),并且在酸性条件下具有很好的稳定性。与此同时,2%Co-Mn/SCC在碱性条件下表现出优异的析氧反应催化性能,具有较低的初始电位,Tafel斜率为143 m V·dec~(-1)。
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| 关 键 词： | 碳材料 家蚕茧 双功能催化 电解水 |
| 收稿时间： | 2017/11/13 0:00:00 |
| 修稿时间： | 2018/3/17 0:00:00 |
Honeycomb-like Structured and Co-Mn Incorporated Carbon Materials Derived from Bombyx mori Cocoons Act as a Bifunctional Catalyst for Water Splitting |
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| ZHANG Ming,LI Tao,WANG Juan,PAN Yi,MA Shi-Jie,ZHU Han and DU Ming-Liang.Honeycomb-like Structured and Co-Mn Incorporated Carbon Materials Derived from Bombyx mori Cocoons Act as a Bifunctional Catalyst for Water Splitting[J].Chinese Journal of Inorganic Chemistry,2018,34(5):942-950. |
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| Authors: | ZHANG Ming LI Tao WANG Juan PAN Yi MA Shi-Jie ZHU Han and DU Ming-Liang |
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| Institution: | Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Ministry of Education, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China,Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Ministry of Education, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China,Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Ministry of Education, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China,Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Ministry of Education, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China,Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Ministry of Education, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China,Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China and Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China |
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| Abstract: | Porous and graphene-type honeycomb-like structured N-doped and Co-Mn incorporated carbon materials derived from Bombyx mori silk cocoons were synthesized via one-step thermal carbonization and graphitization process. Due to the high specific surface area of honeycomb-like structure, the exposed Co-Mn active sites and the pyridine-N and graphitic-N, the prepared 3% Co-Mn/silk cocoon carbon materials (3% Co-Mn/SCC) exhibits good hydrogen evolution reaction (HER) performance with a low onset potential of 121 mV, a low overpotential of 155 mV at 10 mA·cm-2 and a Tafel slope of 130 mV·dec-1 as well as a long-term stability in acidic electrolyte. Meanwhile, the 2% Co-Mn/SCC also shows great oxygen evolution reaction (OER) performance in 1 mol·L-1 KOH with the lowest onset potential 1.5 mV and a Tafel slope of 143 mV·dec-1. This result demonstrates that MCo-Mn/SCC (M is the mass fraction of Co and Mn) possess both HER and OER catalytic activity and can act as a bifunctional catalyst for water electrolysis. |
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| Keywords: | carbon materials Bombyx mori silk cocoons bifunctional catalyst water splitting |
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