Active cobalt induced high catalytic performances of cobalt ferrite nanobrushes for the reduction of p-nitrophenol
Active cobalt induced high catalytic performances of cobalt ferrite nanobrushes for the reduction of p-nitrophenol
复制标题
活性钴诱导钴铁氧体纳米刷还原对硝基苯酚的高催化性能
DOI：
10.1016/j.jcis.2018.10.022
复制
发表时间：
2019
影响因子：
9.9
通讯作者：
Wu Qingsheng
中科院分区：
文献类型：
--
作者：
Zhang Yuxi;Fang Hao;Zhang Yanqiao;Wen Ming;Wu D;an;Wu Qingsheng
为实现绿色化学的目标，开发高效、经济的对硝基苯酚还原催化剂一直是人们关注的焦点。然而，提高催化剂的活性和可回收性仍然是一个挑战。在此，钴-钴铁氧体采用控制生长-还原法一步合成了（Co-CoFe 2 O 4）纳米刷，原位生成的活性Co（0）可以诱导Co-CoFe 2 O 4纳米刷获得较高的催化活性，其对对硝基苯酚的还原反应速率为0.0457 s-1，这是由于原位生成的Co（0）与Co-Fe 2 O 4纳米刷之间的协同效应所致，及其在CoFe_2 O_4载体上的诱导缺陷。与支持信息表S1中计算和收集的其他催化剂相比，设计的Co-CoFe 2 O 4纳米簇可以用作硝基还原反应的良好候选催化剂。
Tremendous attention has been focused on exploring highly efficient and economical catalysts to the reduction ofp-nitrophenol for the purpose of green chemistry. However, it is still a challenge to elevate the catalysts with high activity and desirable recyclability. Herein, Cobalt-Cobalt Ferrite (Co-CoFe2O4) nanobrushes have been synthesized by controlled growth-reduction process in one step, which is applied to catalyze the reduction ofp-nitrophenol.In situgenerated active Co(0) can induce Co-CoFe2O4nanobrushes to achieve higher catalytic activity with a reaction rate of 0.0457 s−1for the reduction ofp-nitrophenol due to the synergetic effect betweenin situgenerated Co(0) and its induced defects on the CoFe2O4support. Compared with other catalysts calculated and gathered in Table S1 in Supporting Information, as-designed Co-CoFe2O4nanobrushes can be employed as a good candidate for the nitro-reduction reaction.