文献类型：期刊文献

英文题名：Interfacial-engineered cobalt@carbon hybrids for synergistically boosted evolution of sulfate radicals toward green oxidation

作者：Duan, Xiaoguang[1];Kang, Jian[2];Tian, Wenjie[1];Zhang, Huayang[1];Ho, Shih-Hsin[3];Zhu, Yi-An[4];Ao, Zhimin[5];Sun, Hongqi[6];Wang, Shaobin[1,2]

机构：[1]Univ Adelaide, Sch Chem Engn, Adelaide, SA 5005, Australia;[2]Curtin Univ, Dept Chem Engn, Perth, WA 6845, Australia;[3]Harbin Inst Technol, Sch Environm, State Key Lab Urban Water Resource & Environm, Harbin, Heilongjiang, Peoples R China;[4]ECUST, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[5]Guangdong Univ Technol, Inst Environm Hlth & Pollut Control, Sch Environm Sci & Engn, Guangzhou 510006, Guangdong, Peoples R China;[6]Edith Cowan Univ, Sch Engn, Joondalup, WA 6027, Australia

年份：2019

卷号：256

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENTAL

收录：;EI(收录号：20192507063496);WOS:【SCI-EXPANDED(收录号:WOS:000483451200040)】；

基金：The authors appreciate the financial supports from the Australian Research Council (DP190103548) and Open Research Projects from State Key Laboratory (SKL-ChE-16C05 and QAK201808). We also acknowledge the financial supports from the National Science Foundation of China (NSFC, Nos. 21777033, 91645122) and Science and Technology Program of Guangdong Province (2017B020216003).

语种：英文

外文关键词：Nanocomposites; Peroxymonosulfate; Sulfate radical; Nitrogen doping; Metal encapsulation

摘要：Efficient water remediation relies on robust and capable catalysts to drive the cutting-edge purification technologies. In this work, Prussian blue analogues (PBA) are engaged as the starting materials to fabricate various transition metal (TM)@carbon composites for water decontamination. The encapsulated metallic cobalt is unveiled to be more favorable to deliver electrons to the adjacent carbons than CoP and Co3O4, due to the low work function, high conductivity and formation of multiple Co-C bonds for electron tunnelling. Such a hybrid structure significantly tailors the electron density of the carbon lattice, which is the decisive factor influencing activating peroxymonosulfate (PMS) to generate highly reactive sulfate radicals for degradation of contaminants, meanwhile achieving outstanding long-term stability. Deliberate material design and theoretical computations unveil the structure-activity regimes of the composite materials in promoted carbocatalysis. This proof-of-concept study dedicates to elucidating the principles in developing fine-tuned and high-performance TM@carbon hybrids for advanced catalytic oxidation.