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Non-noble bimetallic alloy encased in nitrogen-doped nanotubes as a highly active and durable electrocatalyst for oxygen reduction reaction
Zeng, Liming1,2; Cui, Xiangzhi1; Chen, Lisong1; Ye, Ting1,2; Huang, Weimin1; Ma, Ruguang1; Zhang, Xiaohua1,2; Shi, Jianlin1
2017
发表期刊Carbon
ISSN00086223
卷号114页码:347-355
摘要Exploring highly active, cost-effective and durable oxygen reduction reaction (ORR) electrocatalysts as substitutes for the rare platinum-based catalysts is of great significance in energy conversion and storage devices, such as alkaline fuel cells, metal-air batteries, etc. Herein, we fabricated a new type ORR electrocatalyst of Ni[sbnd]Co nanocrystal alloy encapsulated in N-doped carbon nanotubes (NCNTs) through a facile, scalable route utilizing nickel acetate and cobalt chloride as metallic Ni and Co precursors, thiourea as a nitrogen and carbon source, respectively, under a Ni/Co atomic ratio of 3:7 at 700 °C. The obtained nanocomposite catalyst NiCo@NCNT-700 exhibited an outstanding ORR activity close to that of the state-of-the-art Pt/C catalyst and superior operational durability under alkaline conditions, which could be attributed to the co-contributions among the uniformly distributed Ni[sbnd]Co alloy nanoparticles, graphitic NCNTs and the formation of Co[sbnd]N species. This work provides a new insight for the rational design and development of efficient non-noble metal electrocatalysts by integrating electrochemically active units into the nanocomposite for challenging electrochemical energy-related technologies. © 2016 Elsevier Ltd
DOI10.1016/j.carbon.2016.12.017
EI入藏号20165203172197
EI主题词Nanocrystalline alloys
EI分类号525.5 Energy Conversion Issues - 533.1 Ore Treatment - 547.1 Precious Metals - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 694.4 Storage - 702.1.2 Secondary Batteries - 702.2 Fuel Cells - 722.1 Data Storage, Equipment and Techniques - 761 Nanotechnology - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 804.1 Organic Compounds - 819.4 Fiber Products - 911.2 Industrial Economics - 933 Solid State Physics
引用统计
文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25814
专题中国科学院上海硅酸盐研究所
作者单位1.State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing; 100049, China
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GB/T 7714
Zeng, Liming,Cui, Xiangzhi,Chen, Lisong,et al. Non-noble bimetallic alloy encased in nitrogen-doped nanotubes as a highly active and durable electrocatalyst for oxygen reduction reaction[J]. Carbon,2017,114:347-355.
APA Zeng, Liming.,Cui, Xiangzhi.,Chen, Lisong.,Ye, Ting.,Huang, Weimin.,...&Shi, Jianlin.(2017).Non-noble bimetallic alloy encased in nitrogen-doped nanotubes as a highly active and durable electrocatalyst for oxygen reduction reaction.Carbon,114,347-355.
MLA Zeng, Liming,et al."Non-noble bimetallic alloy encased in nitrogen-doped nanotubes as a highly active and durable electrocatalyst for oxygen reduction reaction".Carbon 114(2017):347-355.
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