Highly Efficient and Selective Generation of Ammonia and Hydrogen on a Graphdiyne-Based Catalyst
Highly Efficient and Selective Generation of Ammonia and Hydrogen on a Graphdiyne-Based Catalyst
复制标题
石墨炔基催化剂高效选择性合成氨和氢气
DOI：
10.1021/jacs.9b03004
复制
发表时间：
2019-07-10
影响因子：
15
通讯作者：
Li, Yuliang
中科院分区：
文献类型：
--
作者：
Hui, Lan;Xue, Yurui;Li, Yuliang
零价原子催化剂的出现对催化科学具有极大的吸引力。多年来，科学家们一直在探索零价原子催化剂的稳定性，并展示其独特的性能。在这里，我们描述了一种原子催化剂（AC），其在石墨二炔（Mo-0/GDY）上具有原子分散的零价钼原子，该石墨二炔具有高质量含量的Mo原子（高达7.5重量%），其通过简单且可扩展的方法合成。该催化剂在室温和压力下的氮的电化学还原和水溶液中的析氢反应中表现出优异的选择性和活性。值得注意的是，该催化剂是第一种用于高效和选择性氨和氢生成的双功能AC。我们的催化剂的催化过程很好理解，结构明确，性能优异，为新一代催化剂的产生和应用提供了坚实的基础。
The emergence of zerovalent atom catalysts has been highly attractive for catalytic science. For many years, scientists have explored the stability of zerovalent atom catalysts and demonstrated their unique properties. Here, we describe an atom catalyst (AC) with atomically dispersed zerovalent molybdenum atoms on graphdiyne (Mo-0/GDY) with a high mass content of Mo atoms (up to 7.5 wt %) that was synthesized via a facile and scalable process. The catalyst shows both excellent selectivity and activity in the electrochemical reduction of nitrogen and in the hydrogen evolution reaction in aqueous solutions at room temperature and pressure. It is noted that this catalyst is the first bifunctional AC for highly efficient and selective ammonia and hydrogen generation. The catalytic process of our catalyst is well understood, the structure is defined, and the performance is excellent, providing a solid foundation for the generation and application of the new generation of catalysts.