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个人信息Personal Information
副教授
硕士生导师
电子邮箱：
所在单位：化学与材料工程学院
学历：博士研究生毕业
办公地点：温州大学A区数理学院3C407B室
学位：理学博士学位
毕业院校：清华大学
学科：无机化学
Qi Xu+, Chenxi Guo+, Beibei Li, Zedong Zhang, Yajun Qiu, Shubo Tian, Lirong Zheng, Lin Gu, Wensheng Yan, Dingsheng Wang*, Jian Zhang*, Al3+ Dopants Induced Mg2+ Vacancies Stabilizing Single-Atom Cu Catalyst for Efficient Free-Radical Hydrophosphinylation of Alkenes
点击次数：
DOI码：10.1021/jacs.2c01456
发表刊物：Journal of the American Chemical Society
摘要：Utilizing heterogeneous catalysts to overcome obstacles for homogeneous reactions is fascinating but very challenging owing to the difficult fabrication of such catalysts based on the character of target reactions. Herein, we report a Al(3+) doping strategy to construct single-atom Cu on MgO nanosheets (Cu1/MgO(Al)) for boosting the free-radical hydrophosphinylation of alkenes. Al(3+) dopants in MgO bring about abundant Mg(2+) vacancies for stabilizing dense independent Cu atoms (6.3 wt %), while aggregated Cu nanoparticles are formed without Al(3+) dopants (Cu/MgO). Cu1/MgO(Al) exhibits preeminent activity and durability in the hydrophosphinylation of various alkenes with great anti-Markovnikov selectivity (99%). The turnover frequency (TOF) value reaches up to 1272 h(-1), exceeding those of Cu/MgO by approximately 6-fold and of traditional homogeneous catalysts drastically. Further experimental and theoretical studies disclose that the prominent performance of Cu1/MgO(Al) derives from the accelerated initiating step of phosphinoyl radical triggered by individual Cu atoms.
论文类型：期刊论文
学科门类：理学
文献类型：J
卷号：144
页面范围：4321-4326
是否译文：否
发表时间：2022-03-02
收录刊物：SCI
发布期刊链接：https://pubs.acs.org/doi/10.1021/jacs.2c01456
上一条：Konglin Wu, Zhaobin Fang, Cheng Peng, Yining Zhang, Binbin Jiang, Yanshang Kang, Zhiming Chen, Mingfu Ye, Yuxi Wu, Xianwen Wei, Shoujie Liu*, Sha Li*, Jian Zhang*, Cu1-B dual-active sites catalysts for the efficient dehydrogenative coupling and CO2 electroreduction
下一条：Xuge Zhang+, He Lin+, Jian Zhang+,*, Yajun Qiu, Zedong Zhang, Qi Xu, Ge Meng, Wensheng Yan, Lin Gu, Lirong Zheng, Dingsheng Wang*, Yadong Li, Decreasing the coordinated N atoms in a single-atom Cu catalyst to achieve selective transfer hydrogenation of alkynes