Novel p-n heterojunction Co3O4/AlOOH composites materials for gas sensing at room temperature
作者： Xinci Zhang , Ping Guo , Qingjiang Pan , Keying Shi , Guo Zhang
DOI: 10.1016/J.JALLCOM.2017.08.147
关键词:
摘要: Abstract In this work, Co 3 O 4 /AlOOH composite materials were synthesized via a two-step method, where cobalt oxide/aluminum oxide intermediate was first by hydrothermal then followed calcinations in air. The structure and morphology of the samples are characterized XRD, FT-IR TEM etc. as-prepared display special 2D nanosheets mesopore structure. small nanoparticles with sizes about 7 nm highly dispersed on surface AlOOH. Mott-Schottky plots displaying p-n junctions existent materials. gas sensing results reveal that 1:9 sensor shows significantly enhance NO x performance. responses 57.8–7.5% to 100–0.1 ppm at room temperature. outstanding performance may attribute formation
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