Hierarchical interconnected macro-/mesoporous Co-containing N-doped carbon for efficient oxygen reduction reactions

被引：60

作者：

Jiang, Hongliang ^{[1
]}

Su, Yunhe ^{[1
]}

Zhu, Yihua ^{[1
]}

Shen, Jianhua ^{[1
]}

Yang, Xiaoling ^{[1
]}

Feng, Qian ^{[1
]}

Li, Chunzhong ^{[1
]}

机构：

[1] E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2013年 / 1卷 / 39期

基金：

中国国家自然科学基金;

关键词：

METAL-FREE ELECTROCATALYSTS; CATALYST-FREE SYNTHESIS; CHEMICAL-REDUCTION; FACILE SYNTHESIS; GRAPHITE OXIDE; GRAPHENE OXIDE; NANOPARTICLES; GROWTH; NANOTUBES; COMPOSITE;

D O I：

10.1039/c3ta12493b

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Three-dimensional (3D) hierarchical porous Co-containing N-doped carbon materials (HP-Co-CNs) have been successfully prepared for the first time by using cyanamide as a nitrogen source and poly(vinyl alcohol) (PVA) hydrogel-based composites as in situ templates. Remarkably, the resulting HP-Co-CNs possess controllable nitrogen content, high surface area, hierarchical interconnected macro-/mesoporous structure, and a certain amount of Co-N-x moieties which could act as active sites in the oxygen reduction reaction (ORR). In studying the application of HP-Co-CNs for the ORR, the HP-Co-CNs showed excellent electrocatalytic performance for a four-electron ORR, and longer-term stability and higher methanol tolerance then the commercial Pt/C electrocatalyst in alkaline medium, highlighting the importance of macropores for diffusion and a sufficient amount of active sites related to high specific surface area for improving the ORR performance.

引用

页码：12074 / 12081

页数：8

共 57 条

[11] Electrically Conductive "Alkylated" Graphene Paper via Chemical Reduction of Amine-Functionalized Graphene Oxide Paper [J].

Compton, Owen C. ;

Dikin, Dmitriy A. ;

Putz, Karl W. ;

Brinson, L. Catherine ;

Nguyen, SonBinh T. .

ADVANCED MATERIALS, 2010, 22 (08) :892-+

[12] In Situ Electrochemical X-ray Absorption Spectroscopy of Oxygen Reduction Electrocatalysis with High Oxygen Flux [J].

Erickson, Evan M. ;

Thorum, Matthew S. ;

Vasic, Relja ;

Marinkovic, Nebojsa S. ;

Frenkel, Anatoly I. ;

Gewirth, Andrew A. ;

Nuzzo, Ralph G. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134 (01) :197-200

[13] Growth confined by the nitrogen source: Synthesis of pure metal nitride nanoparticles in mesoporous graphitic carbon nitride [J].

Fischer, Anna ;

Antonietti, Markus ;

Thomas, Arne .

ADVANCED MATERIALS, 2007, 19 (02) :264-+

[14] Synthesis of Ternary Metal Nitride Nanoparticles Using Mesoporous Carbon Nitride as Reactive Template [J].

Fischer, Anna ;

Mueller, Jens Oliver ;

Antonietti, Markus ;

Thomas, Arne .

ACS NANO, 2008, 2 (12) :2489-2496

[15] DNA-directed growth of FePO4 nanostructures on carbon nanotubes to achieve nearly 100% theoretical capacity for lithium-ion batteries [J].

Guo, Chun Xian ;

Shen, Yi Qiang ;

Dong, Zhi Li ;

Chen, Xiao Dong ;

Lou, Xiong Wen ;

Li, Chang Ming .

ENERGY & ENVIRONMENTAL SCIENCE, 2012, 5 (05) :6919-6922

[16] Biointerface by Cell Growth on Layered Graphene-Artificial Peroxidase-Protein Nanostructure for In Situ Quantitative Molecular Detection [J].

Guo, Chun Xian ;

Zheng, Xin Ting ;

Lu, Zhi Song ;

Lou, Xiong Wen ;

Li, Chang Ming .

ADVANCED MATERIALS, 2010, 22 (45) :5164-+

[17] Co/CoO Nanoparticles Assembled on Graphene for Electrochemical Reduction of Oxygen [J].

Guo, Shaojun ;

Zhang, Sen ;

Wu, Liheng ;

Sun, Shouheng .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2012, 51 (47) :11770-11773

[18] FePt Nanoparticles Assembled on Graphene as Enhanced Catalyst for Oxygen Reduction Reaction [J].

Guo, Shaojun ;

Sun, Shouheng .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134 (05) :2492-2495

[19] Noble metal nanomaterials: Controllable synthesis and application in fuel cells and analytical sensors [J].

Guo, Shaojun ;

Wang, Erkang .

NANO TODAY, 2011, 6 (03) :240-264

[20]

Hye R. B., 2011, CHEM MATER, V23, P3421

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