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Title: Nitrogen and sulfur co-doping of partially exfoliated MWCNTs as 3-D structured electrocatalysts for the oxygen reduction reaction

Preventing the stacking of graphene sheets is of vital importance for highly efficient and stable fuel cell electrocatalysts. Here, we report a 3-D structured carbon nanotube intercalated graphene nanoribbon with N/S co-doping. The nanocomposite is obtained by using high temperature heat-treated thiourea with partially unzipped multi-walled carbon nanotubes. This unique structure preserves both the properties of carbon nanotubes and graphene, exhibiting excellent catalytic performance for the ORR with similar onset and half-wave potentials to those of Pt/C electrocatalysts. Furthermore, the stereo structured composite exhibits distinct advantages in long-term stability and methanol poisoning tolerance in comparison to Pt/C.
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [1] ;  [1] ;  [3] ;  [1]
  1. Huazhong Univ. of Science and Technology, Wuhan (People's Republic of China). School of Chemistry and Chemical Engineering
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials; Tianjin Univ. (China). School of Materials Science and Engineering
  3. Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials; Stony Brook Univ., NY (United States). Dept. of Materials Science and Engineering
Publication Date:
Report Number(s):
BNL-112595-2016-JA
Journal ID: ISSN 2050-7488; JMCAET; R&D Project: 16060; 16060
Grant/Contract Number:
SC00112704
Type:
Accepted Manuscript
Journal Name:
Journal of Materials Chemistry. A
Additional Journal Information:
Journal Volume: 4; Journal Issue: 15; Journal ID: ISSN 2050-7488
Publisher:
Royal Society of Chemistry
Research Org:
Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Oxygen Reduction Reaction; Fuel Cell; Center for Functional Nanomaterials
OSTI Identifier:
1336129