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author:

Tan, A.-D. (Tan, A.-D..) [1] | Wang, Y.-F. (Wang, Y.-F..) [2] | Fu, Z.-Y. (Fu, Z.-Y..) [3] | Tsiakaras, P. (Tsiakaras, P..) [4] | Liang, Z.-X. (Liang, Z.-X..) [5]

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Scopus

Abstract:

Nitrogen-doped carbon materials with hierarchically mesoporous structure are synthesized in the present work via the pyrolysis of an interpenetrated non-porous metal-organic framework (MOF), viz. [Zn2(TPT)(BDC)2]·H2O (SCUT-11, TPT = tris(4-pyridyl)triazine, BDC = 1,4-benzenedicarboxylate), as the precursor. X-ray diffraction reveals that the synthesized metal-organic framework (MOF) is of high purity of the crystalline phase, and its structure follows our previously reported SCUT-11. This triply-interpenetrated MOF features high density of Zn cations in their interwoven packing structure, which act as effective pore-forming agent to generate mesopores in final carbon. Physicochemical characterizations reveal that the resultant carbon has high specific surface area and bimodal mesopore size distribution, which originate from the removal of metal oxide and/or metal zinc. These textual features favour both oxygen mass transfer and accessibility of catalytically active sites. Electrochemical results confirm that the resultant carbon, synthesized by pyrolysis at 900 °C, shows a superior oxygen reduction reaction (ORR) activity, which is associated with high onset and half-wave potential up to 1.0 and 0.88 V, respectively. Further investigation suggests that the as-synthesized carbon catalyst exhibits a remarkable insensitivity towards anions, like sulphate and phosphate, compared with the Pt counterpart. The above features make this carbon catalyst promising to be widely used in different fuel cell types. © 2017 Elsevier B.V.

Keyword:

Hierarchically mesoporous carbon; Interpenetrated nonporous metal-organic framework; Ion sensitivity; Nitrogen-doped carbon; Oxygen reduction reaction

Community:

  • [ 1 ] [Tan, A.-D.]Key Laboratory on Fuel Cell Technology of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
  • [ 2 ] [Wang, Y.-F.]Key Laboratory on Fuel Cell Technology of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
  • [ 3 ] [Fu, Z.-Y.]Key Laboratory on Fuel Cell Technology of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
  • [ 4 ] [Fu, Z.-Y.]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China
  • [ 5 ] [Tsiakaras, P.]Laboratory of Alternative Energy Conversion Systems, Department of Mechanical Engineering, School of Engineering, University of Thessaly, Pedion Areos, Volos, 38334, Greece
  • [ 6 ] [Tsiakaras, P.]Laboratory of Electrochemical Devices based on Solid Oxide Proton Electrolytes, Institute of High Temperature Electrochemistry, Yekaterinburg, 620990, Russian Federation
  • [ 7 ] [Liang, Z.-X.]Key Laboratory on Fuel Cell Technology of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China

Reprint 's Address:

  • [Fu, Z.-Y.]Key Laboratory on Fuel Cell Technology of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of TechnologyChina

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Source :

Applied Catalysis B: Environmental

ISSN: 0926-3373

Year: 2017

Volume: 218

Page: 260-266

1 1 . 6 9 8

JCR@2017

2 0 . 3 0 0

JCR@2023

ESI HC Threshold:226

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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