Facile synthesis of nitrogen and fluorine co-doped carbon materials as efficient electrocatalysts for oxygen reduction reactions in air-cathode microbial fuel cells
Facile synthesis of nitrogen and fluorine co-doped carbon materials as efficient electrocatalysts for oxygen reduction reactions in air-cathode microbial fuel cells
复制标题
轻松合成氮氟共掺杂碳材料作为空气阴极微生物燃料电池氧还原反应的高效电催化剂
DOI：
10.1039/c4ta06500j
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发表时间：
2015-01-01
影响因子：
11.9
通讯作者：
Wang, Yaobing
中科院分区：
文献类型：
--
作者：
Meng, Kai;Liu, Qin;Wang, Yaobing
以聚四氟乙烯（PTFE）和BP-2000为原料，在氨气氛下直接热解制备氮氟共掺杂炭黑（BP-NF），用于微生物燃料电池（MFC）空气阴极的高效ORR电催化。BP-NF的电催化活性高于单掺氮或氟的碳材料（BP-N，BP-F），其起始电位分别为E = 0.2V（BP-NF），E = 0.1V（BP-N），极限电流密度分别为I = 4.5mA cm（-2）（BP-NF），I = 0.31mA cm（-2）（BP-F）。结果表明，在N和F共掺杂的碳材料中具有协同的ORR催化效应。以BP-NF为阴极催化剂的MFC的最大功率密度（672 mA cm（-2））高于以商业Pt/C为阴极催化剂的MFC的最大功率密度（572 mA cm（-2））。
Nitrogen and fluorine co-doped carbon black (BP-NF) was prepared via the direct pyrolysis of a mixture of polytetrafluoroethylene (PTFE) and BP-2000 under an ammonium atmosphere for high efficient ORR electrocatalysis in the air-cathode of microbial fuel cells (MFCs). The electrocatalytic activity of BP-NF is higher than that of single nitrogen or fluorine doped carbon materials (BP-N, BP-F), with an onset potential of E = 0.2 V (BP-NF), E = 0.1 V (BP-N), and a limiting current density of I = 4.5 mA cm(-2) (BP-NF), I = 0.31 mA cm(-2) (BP-F), respectively. The results demonstrated a synergistic ORR catalytic effect in N and F co-doping carbon material. The maximum power density of MFC with BP-NF as the cathode catalyst (672 mA cm(-2)) was higher than that with commercial Pt/C (572 mA cm(-2)).