Effects of Co_3O_4 nanocatalyst morphology on CO oxidation:Synthesis process map and catalytic activity
作者机构：昆明理工大学省部共建复杂有色金属资源清洁利用国家重点实验室云南昆明650093 昆明理工大学冶金与能源工程学院云南昆明650093
基 金：supported by the National Natural Science Foundation of China (51374004,51204083) the Candidate Talents Training Fund of Yun-nan Province (2012HB009,2014HB006) the Applied Basic Research Program of Yunnan Province (2014FB123) a School-Enterprise Cooperation Project from Jinchuan Corporation (Jinchuan 201115) the Talents Training Program of Kunming University of Science and Technology (KKZ3201352038)
出 版 物：《Chinese Journal of Catalysis》 (催化学报（英文）)
年 卷 期：2016年第37卷第6期
页 码：908-922页
摘 要：This study focuses on drawing a hydrothermal synthesis process map for Co3O4 nanoparticles with various morphologies and investigating the effects of Co3O4 nanocatalyst morphology on CO oxidation.A series of cobalt-hydroxide-carbonate nanoparticles with various morphologies（i.e.,nanorods,nanosheets,and nanocubes） were successfully synthesized,and Co3O4 nanoparticles were obtained by thermal decomposition of the cobalt-hydroxide-carbonate *** results suggest that the cobalt source is a key factor for controlling the morphology of cobalt-hydroxide-carbonate at relatively low hydrothermal temperatures（≤ 140℃）.Nanorods can be synthesized in CoCl2 solution,while Co（NO3）2 solution promotes the formation of *** increasing the synthesis temperature（higher than 140 ℃） results in the formation of nanocubes in either Co（NO3）2 or CoCl2 *** reaction time only affects the size of the obtained *** presence of CTAB could improve the uniformity and dispersion of ***3O4 nanosheets showed much higher catalytic activity for CO oxidation than nanorods and nanocubes because it has more abundant Co^（3＋） on the surface,much higher reducibility,and better oxygen desorption capacity.
主 题 词：Cobalt oxide nanocatalyst Synthesis process map Morphology effect Catalytic activity Carbon monoxide oxidation
学科分类：081705[081705] 08[工学] 0817[工学-轻工类]
核心收录：
D O I：10.1016/S1872-2067(16)62460-9
馆 藏 号：203124363...
