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Single-atom nickel confined nanotube superstructure as support for catalytic wet air oxidation of acetic acid
Communications Chemistry ( IF 5.9 ) Pub Date : 2019-11-28 , DOI: 10.1038/s42004-019-0239-8
Chengyu Jin , Lei Ma , Wenjing Sun , Peiwei Han , Xiangdong Tan , Huiling Wu , Mengyang Liu , Haibo Jin , Zhongshuai Wu , Huangzhao Wei , Chenglin Sun

Single-atom confined materials (SACMs) have been widely researched as catalysts in many fields within recent years. However, this class of materials may not only serve as a catalyst but also as a support material for certain reactions. Here we propose a general strategy to use SACMs as supports for tuning loaded noble metal (e.g., Ru) nanoparticles with enhanced catalytic activity. As a proof of concept, a nickel single-atom confined nitrogen-doped carbon nanotube (NCNT) superstructure is prepared as a support to load noble metal Ru for catalytic wet air oxidation of acetic acid. Improved catalytic activity with a mineralization rate of ~97.5% is achieved. Further, adsorption configurations based on DFT calculations also confirm our deduction that the introduction of single-atom Ni changes the intrinsic property of NCNTs and affects the loaded active Ru nanoparticles.



中文翻译:

单原子镍约束的纳米管上部结构作为乙酸催化湿空气氧化的载体

近年来,单原子约束材料(SACM)已作为许多领域的催化剂得到了广泛研究。但是,这类材料不仅可以用作催化剂,而且可以用作某些反应的载体材料。在这里,我们提出了一种通用策略,将SACM作为支撑剂来调节负载的贵金属(例如Ru)纳米颗粒,具有增强的催化活性。作为概念证明,制备了镍单原子约束的氮掺杂碳纳米管(NCNT)上层结构,作为负载贵金属Ru的载体,用于催化湿式氧化乙酸。实现了更高的催化活性,矿化率达到〜97.5%。进一步,

更新日期:2019-11-29
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