Hierarchically Structured Non-PGM Oxygen Reduction Electrocatalyst Based on Microemulsion-Templated Silica and Pyrolyzed Iron and Cyanamide Precursors

被引：37

作者：

Artyushkova, Kateryna ^{[1
]}

Walker, Candace ^{[1
]}

Patterson, Wendy ^{[1
]}

Atanassov, Plamen ^{[1
]}

机构：

[1] Univ New Mexico, Dept Chem & Nucl Engn, Albuquerque, NM 87131 USA

来源：

ELECTROCATALYSIS | 2014年 / 5卷 / 03期

基金：

美国国家科学基金会;

关键词：

ORR; Cyanamide; Hierarchical; MNC electrocatalyst; Non-PGM electrocatalyst; CATHODE CATALYSTS; METAL CATALYST; FUEL-CELLS; CARBON; XPS; ORR; METHANOL; SUPPORT;

D O I：

10.1007/s12678-014-0185-2

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：

Hierarchically structured electrocatalysts for oxygen reduction based on iron and cyanamide were synthesized using novel templating approach that leads to hierarchy of scales of pores and particles. Microemulsion process is used to generate silica template with multimodal pore distribution, which is impregnated with metal and nitrogen precursors, to create a large surface area openly structured active electrocatalysts for oxygen reduction in both acid and alkaline media. Extensive characterization using microscopic, spectroscopic, and electrochemical methods of electrocatalysts was done to understand the final catalysts structure obtained through this novel approach and its impact on activity.

引用

页码：241 / 247

页数：7

共 41 条

[1]

Artyushkova K., 2011, ABSTR PAP AM CHEM S, V242

[2]

Artyushkova K., 2012, J POWER SOURC UNPUB

[3] Predictive modeling of electrocatalyst structure based on structure-to-property correlations of X-ray photoelectron spectroscopic and electrochemical measurements [J].

Artyushkova, Kateryna ;

Pylypenko, Svitlana ;

Olson, Tim S. ;

Fulghum, Julia E. ;

Atanassov, Plamen .

LANGMUIR, 2008, 24 (16) :9082-9088

[4] XPS structural studies of nano-composite non-platinum electrocatalysts for polymer electrolyte fuel cells [J].

Artyushkova, Kateryna ;

Levendosky, Stephen ;

Atanassov, Plamen ;

Fulghum, Julia .

TOPICS IN CATALYSIS, 2007, 46 (3-4) :263-275

[5] Microparticles with Bimodal Nanoporosity Derived by Microemulsion Templating [J].

Carroll, Nick J. ;

Pylypenko, Svitlana ;

Atanassov, Plamen B. ;

Petsev, Dimiter N. .

LANGMUIR, 2009, 25 (23) :13540-13544

[6] Fe/N/C non-precious catalysts for PEM fuel cells: Influence of the structural parameters of pristine commercial carbon blacks on their activity for oxygen reduction [J].

Charreteur, Fanny ;

Jaouen, Frederic ;

Ruggeri, Stephane ;

Dodelet, Jean-Pol .

ELECTROCHIMICA ACTA, 2008, 53 (06) :2925-2938

[7] Ordered mesoporous porphyrinic carbons with very high electrocatalytic activity for the oxygen reduction reaction [J].

Cheon, Jae Yeong ;

Kim, Taeyoung ;

Choi, YongMan ;

Jeong, Hu Young ;

Kim, Min Gyu ;

Sa, Young Jin ;

Kim, Jaesik ;

Lee, Zonghoon ;

Yang, Tae-Hyun ;

Kwon, Kyungjung ;

Terasaki, Osamu ;

Park, Gu-Gon ;

Adzic, Radoslav R. ;

Joo, Sang Hoon .

SCIENTIFIC REPORTS, 2013, 3

[8] Cyanamide-derived non-precious metal catalyst for oxygen reduction [J].

Chung, Hoon T. ;

Johnston, Christina M. ;

Artyushkova, Kateryna ;

Ferrandon, Magali ;

Myers, Deborah J. ;

Zelenay, Piotr .

ELECTROCHEMISTRY COMMUNICATIONS, 2010, 12 (12) :1792-1795

[9] XPS quantitative analysis and models of supported oxide catalysts [J].

Cimino, A ;

Gazzoli, D ;

Valigi, M .

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 1999, 104 (1-3) :1-29

[10] Hierarchical structure SnO2 supported Pt nanoparticles as enhanced electrocatalyst for methanol oxidation [J].

Fan, Yang ;

Liu, Jinhang ;

Lu, Haiting ;

Huang, Ping ;

Xu, Dongli .

ELECTROCHIMICA ACTA, 2012, 76 :475-479

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