Mesoporous metal-nitrogen-doped carbon electrocatalysts for highly efficient oxygen reduction reaction
Liang HW, Wei W, Wu ZS, Feng X, Muellen K (2013)
Publication Type: Journal article
Publication year: 2013
Journal
Book Volume: 135
Pages Range: 16002-16005
Journal Issue: 43
DOI: 10.1021/ja407552k
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-N
Involved external institutions
Germany (DE)How to cite
APA:
Liang, H.-W., Wei, W., Wu, Z.-S., Feng, X., & Muellen, K. (2013). Mesoporous metal-nitrogen-doped carbon electrocatalysts for highly efficient oxygen reduction reaction. Journal of the American Chemical Society, 135(43), 16002-16005. https://doi.org/10.1021/ja407552k
MLA:
Liang, Hai-Wei, et al. "Mesoporous metal-nitrogen-doped carbon electrocatalysts for highly efficient oxygen reduction reaction." Journal of the American Chemical Society 135.43 (2013): 16002-16005.
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