Increasing sensing sensitivity of the Fe-α-Fe2O3 (104) surface by hydrogenation and the sensing reaction molecule mechanism
作者： Yan Ren , Juan Yang , Yong Ma , Bin Liu , Xiao Zhang
DOI: 10.1016/J.SNB.2018.10.088
关键词:
摘要: Abstract The response of the gas sensors based on α-Fe2O3 nanosheets with exposed {104} facets towards C2H5OH, CH3COCH3 and N(C2H5)3 vapors is effectively increased by increasing density 1, 2, 3, 4 5 coordinated Fe atoms Fe-α-Fe2O3 (104) surface through hydrogenation. dangling bonds were considered to act as an active site for sensing reaction, a reaction molecule mechanism presented. unsaturated not only can adsorb oxygen molecules, generate free electrons, but also catalyze test chemisorbed oxygen. hydrogenation activating engineering may be effective strategy improve catalytic properties metal oxides.
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