Preparation of Janus-type catalysts and their catalytic performance at emulsion interface

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• 作者：Yijiang Liu^a ; ^b ; ^{liuyijiang84@163.com} ; Jiankang Hu^a ; Xiaotian Yu^c ; Xinyu Xu^a ; Yong Gao^a ; Huaming Li^a ; Fuxin Liang^b ; ^c ; ^{liangfuxin@iccas.ac.cn}
• 关键词：Janus-type catalyst ; Selective modification ; Metal nanoparticles loading ; Recyclable ; Emulsion interfacial catalysis
• 刊名：Journal of Colloid and Interface Science
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：490
• 期：Complete
• 页码：357-364
• 全文大小：2161 K
• 卷排序：490

文摘

Two Janus-type catalysts were synthesized by selective modification and further functionalization with metal nanoparticles on one or both beads of snowman-like Janus particles. The catalytic performance of Janus-type catalysts both in homogeneous and interfacial reaction systems was systematically investigated using the reduction of nitro-compound as model reaction. The results showed that Janus-type catalysts have excellent catalytic activity in homogeneous reaction system and they are easy to recycle. Further, the Janus-type catalysts exhibited more efficient catalytic activity at emulsion interface than that of oil-water biphasic interface due to the exposed Au nanoparticles on snowman-like Janus particles offer high accessibility to reactants.