Egg derived nitrogen-self-doped carbon/carbon nanotube hybrids as noble-metal-free catalysts for oxygen reduction
Egg derived nitrogen-self-doped carbon/carbon nanotube hybrids as noble-metal-free catalysts for oxygen reduction
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DOI：
10.1016/j.jpowsour.2014.08.038
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发表时间：
2014-12
影响因子：
9.2
通讯作者：
Jian Zhang;Siyu Wu;Xu Chen;M. Pan;Shichun Mu
中科院分区：
文献类型：
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作者：
Jian Zhang;Siyu Wu;Xu Chen;M. Pan;Shichun Mu
目前，氮(N)掺杂碳基非贵金属ORR催化剂的开发已成为低温燃料电池研究的热点之一。在这里，我们展示了一条以鸡蛋为氮源，结合铁源和多壁碳纳米管(CE-Fe-MWNT)合成N-自掺杂碳材料的绿色路线。碳化后的杂化材料在碱性介质中对ORR具有与商品铂/碳催化剂相当的电催化活性，在稳定性和燃料(甲醇和CO)耐受性方面优于商品铂/碳催化剂，这为利用丰富的天然生物资源提供了一种有前途的贵金属催化剂替代品。
Currently, the development of nitrogen (N) doped carbon based non-precious metal ORR catalysts has become one of the most attractive topics in low temperature fuel cells. Here, we demonstrate a green synthesis route of N-self-doped carbon materials by using eggs as N sources combining with iron sources and multi-walled carbon nanotubes (CE–Fe–MWNT). After carbonized, such hybrid materials possess an outstanding electrocatalytic activity towards ORR comparable to the commercial Pt/C catalyst in alkaline media, and both superior stability and fuel (methanol and CO) tolerance than the commercial Pt/C catalyst, which provide a promising alternative to noble metal catalysts by using abundant natural biological resources.