固体氧化物直接碳燃料电池阳极反应过程分析

刘国阳; 周安宁; 张亚婷; 蔡江涛; 党永强; 邱介山

固体氧化物直接碳燃料电池阳极反应过程分析

1.
西安科技大学化学与化工学院, 陕西西安 710054;
2.
大连理工大学能源材料化工辽宁省重点实验室暨精细化工国家重点实验室, 辽宁大连 116024

基金项目: 国家自然科学基金(21276207); NSFC-新疆联合基金重点项目(U1203292); 陕西省自然科学基础研究计划(2014JM2043)。

详细信息

通讯作者:
周安宁,教授,Tel:029-85583549,E-mail:zhouanning2004@aliyun.com.cn。

中图分类号: TM911.4
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- 被引次数: 0
出版历程
- 收稿日期: 2015-02-05
- 修回日期: 2015-05-07
- 刊出日期: 2015-09-30

Analysis of the reaction process in solid oxide direct carbon fuel cell anode

1.
College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China;
2.
State Key Lab of Fine Chemicals, Liaoning Key Laboratory for Energy Materials & Chemical Engineering, Dalian University of Technology, Dalian 116024, China

摘要

摘要: 以氧化钇稳定的氧化锆(YSZ)为电解质组装成直接碳燃料电池(DCFC),分别以活性炭(AC)、石墨(G)、神府半焦(SC)作为DCFC燃料,研究了碳燃料的特性、电池操作温度以及阳极反应气氛等对DCFC阳极反应过程的影响。结果表明,三种碳燃料在空气、CO₂气氛中氧化反应活性顺序为AC > SC > G,当三种碳材料作为DCFC燃料时,活性炭作为燃料的DCFC性能最好,半焦燃料次之,石墨作为燃料的DCFC性能最差,而且燃料反应活性与其表面含氧官能团、孔隙结构有关;DCFC的阳极反应过程存在碳燃料直接氧化为CO₂、CO₂与C反应转化为CO,以及CO氧化为CO₂等。
- 直接碳燃料电池 /
- 碳燃料 /
- 阳极反应 /
- 活性炭 /
- 半焦 /
- 石墨
Abstract: A direct carbon fuel cell (DCFC) was assembled with yttria stabilized zirconia (YSZ) as electrolyte and active carbon (AC), graphite (G) and semi-coke (SC) were employed as the DCFC fuels. The influences of the carbon fuel pore structure and reactivity, operation temperature, anode atmosphere on the anode reaction were investigated. The results indicated that for three carbonaceous fuels, the performance of DCFC is in the order of AC > SC > G, the same as that for their oxidation reactivity in air or CO₂ atmosphere. The reactivity of carbonaceous fuels is determined by their surface oxygenic functional groups and pore structure. Moreover, the results revealed that the DCFC anodic reactions involves the oxidation of C to CO₂, the conversion of CO₂ to CO via the reverse Boudouard reaction, and the oxidation of CO to CO₂.
- direct carbon fuel cell /
- carbonaceous fuel /
- anode reaction /
- active carbon /
- semi-coke /
- graphite

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