Liu Min, Yin Shuli, Ren Tianlun, Xu You, Wang Ziqiang, Li Xiaonian, Wang Liang, Wang Hongjing
State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
ACS Appl Mater Interfaces. 2021 Oct 13;13(40):47458-47464. doi: 10.1021/acsami.1c11246. Epub 2021 Oct 4.
The design of Au-based materials with good dispersion and more active sites is critical to enhance the catalytic performance of electrochemical ammonia production. Herein, two-dimensional (2D) heterojunction Au-BiTe nanosheets (Au-BiTe NSs) are prepared by Au nanoparticles growing on BiTe nanosheets. Benefiting from the good dispersion of Au nanoparticles and the synergistic effect of the heterojunction composite, Au-BiTe NSs demonstrate excellent behavior for an ambient nitrogen reduction reaction (NRR). In a 0.1 M NaSO electrolyte (N-saturated), Au-BiTe NSs display a high NH yield rate of 32.73 μg h mg and a faradic efficiency of 20.39% at -0.4 V. The proposed synthetic method provides a feasible strategy for designing high-performance heterojunction electrocatalysts for electrochemical ammonia synthesis.
设计具有良好分散性和更多活性位点的金基材料对于提高电化学合成氨的催化性能至关重要。在此，通过在碲化铋纳米片上生长金纳米颗粒制备了二维（2D）异质结金-碲化铋纳米片（Au-BiTe NSs）。受益于金纳米颗粒的良好分散性和异质结复合材料的协同效应，Au-BiTe NSs在常温氮还原反应（NRR）中表现出优异的性能。在0.1 M NaSO电解质（氮气饱和）中，Au-BiTe NSs在-0.4 V时显示出32.73 μg h mg的高NH产率和20.39%的法拉第效率。所提出的合成方法为设计用于电化学氨合成的高性能异质结电催化剂提供了一种可行的策略。
