Home
Dr.Wu
Research
Member
Publications
News
Contact
Mesoporous Metal-Nitrogen-Doped Carbon Electrocatalysts for Highly Efficient Oxygen Reduction Reaction
Publications
 
All
2017
2016
2015
2014
2013
2012
2011
2010
2009
2007
2006
   
Mesoporous Metal-Nitrogen-Doped Carbon Electrocatalysts for Highly Efficient Oxygen Reduction Reaction
Posted:2016-03-18 16:46    Column:2013
H.-W. Liang, W. Wei, Z.-S. Wu, X. Feng*, K. Müllen*,
Journal of the American Chemical Society 2013, 135 (43): 16002-16005.
DOI: 10.1021/ja407552k  [PDF]

Abstract
A family of mesoporous nonprecious metal (NPM) catalysts for oxygen reduction reaction (ORR) in acidic media, including cobalt–nitrogen-doped carbon (C–N–Co) and iron–nitrogen-doped carbon (C–N–Fe), was prepared from vitamin B12 (VB12) and the polyaniline-Fe (PANI-Fe) complex, respectively. Silica nanoparticles, ordered mesoporous silica SBA-15, and montmorillonite were used as templates for achieving mesoporous structures. The most active mesoporous catalyst was fabricated from VB12 and silica nanoparticles and exhibited a remarkable ORR activity in acidic medium (half-wave potential of 0.79 V, only ∼58 mV deviation from Pt/C), high selectivity (electron-transfer number >3.95), and excellent electrochemical stability (only 9 mV negative shift of half-wave potential after 10 000 potential cycles). The unprecedented performance of these NPM catalysts in ORR was attributed to their well-defined porous structures with a narrow mesopore size distribution, high Brunauer–Emmett–Teller surface area (up to 572 m2/g), and homogeneous distribution of abundant metal–Nx active sites

Dalian Institute of Chemical Physics, CAS
457 Zhongshan Road Dalian, China 116023
E-mail: wuzs@dicp.ac.cn
Copyright © 2015-2017. 2D Materials & Energy Devices Lab. All Rights Reserved. 网站管理 Home / Dr.Wu / Research / Member / Publications / News / Contact