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题名: Highly Effective Dual Transition Metal Macrocycle Based Electrocatalyst with Macro-/Mesoporous Structures for Oxygen Reduction Reaction
作者: Jin, Xinxin1;  Xie, Yan1;  Huang, Jiahui1
关键词: metal macrocycle ;  macro-/mesoporous structure ;  oxygen reduction reaction ;  fuel cell
刊名: CATALYSTS
发表日期: 2017-07-01
DOI: 10.3390/catal7070201
卷: 7, 期:7
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Metal macrocycle based non-noble metal electrocatalysts (NNMEs) with highly efficient oxygen reduction reaction (ORR) activity, good stability, and excellent resistance to the methanol cross-over effect have been regarded as one of the most important alternatives for Pt or Pt based alloys, which are widely used in fuel cells. However, the expensive price of most metal macrocycles hinder further investigation of such a family of NNMEs in large production for practical applications. Here, we introduce a simple strategy to synthesize metal macrocycle based porous carbon (MMPC) material with low cost and easy production of metal macrocycles (hemin (Hm) and vitamin B-12 (VB12)) as raw materials by using a hard template of MgO. The pyrolysis of MMPC under the optimal temperature at 900 degrees C shows comparative ORR performance relative to commercial Pt/C, which could be attributed to the large surface area, macro-/mesoporous structure, the carbon layer encapsulating transition metal based oxides, as well as N-doped carbon species. In addition, MMPC (900) displays a better electrochemical property than 20 wt % Pt/C in terms of durability and tolerance to methanol in O-2-saturated 0.1 M KOH media.
关键词[WOS]: HIGH-PERFORMANCE ELECTROCATALYSTS ;  FUEL-CELL CATHODE ;  GRAPHITIC LAYERS ;  CARBON ELECTROCATALYSTS ;  EFFICIENT ;  ALKALINE ;  CATALYST ;  COBALT ;  IRON ;  NANOPARTICLES
语种: 英语
WOS记录号: WOS:000406702400009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/149796
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Gold Catalysis Res Ctr, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China

Recommended Citation:
Jin, Xinxin,Xie, Yan,Huang, Jiahui. Highly Effective Dual Transition Metal Macrocycle Based Electrocatalyst with Macro-/Mesoporous Structures for Oxygen Reduction Reaction[J]. CATALYSTS,2017,7(7).
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