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用于直接烃类固体氧化物燃料电池的耐硫氧化还原可逆阳极材料。

Sulfur-tolerant redox-reversible anode material for direct hydrocarbon solid oxide fuel cells.

机构信息

Department of Mechanical Engineering, University of South Carolina, Columbia, 29208, USA.

出版信息

Adv Mater. 2012 Mar 15;24(11):1439-43. doi: 10.1002/adma.201104852. Epub 2012 Feb 9.

DOI:10.1002/adma.201104852
PMID:22318883
Abstract

A novel composite anode material consisting of K(2) NiF(4) -type structured Pr(0.8) Sr(1.2) (Co,Fe)(0.8) Nb(0.2) O(4+δ) (K-PSCFN) matrix with homogenously dispersed nano-sized Co-Fe alloy (CFA) has been obtained by annealing perovskite Pr(0.4) Sr(0.6) Co(0.2) Fe(0.7) Nb(0.1) O(3-δ) (P-PSCFN) in H(2) at 900 °C. The K-PSCFN-CFA composite anode is redox-reversible and has demonstrated similar catalytic activity to Ni-based cermet anode, excellent sulfur tolerance, remarkable coking resistance and robust redox cyclability.

摘要

一种新型复合阳极材料，由 K(2)NiF(4) 型结构的 Pr(0.8)Sr(1.2)(Co,Fe)(0.8)Nb(0.2)O(4+δ)（K-PSCFN）矩阵和均匀分散的纳米级 Co-Fe 合金（CFA）组成，通过在 H(2)中于 900°C 退火钙钛矿 Pr(0.4)Sr(0.6)Co(0.2)Fe(0.7)Nb(0.1)O(3-δ)（P-PSCFN）获得。K-PSCFN-CFA 复合阳极具有氧化还原可逆性，表现出与 Ni 基金属陶瓷阳极相似的催化活性、优异的硫耐受性、显著的抗积碳性和强大的氧化还原循环稳定性。

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