In this section, you can access to the latest technical information related to the FUTURE project topic.

2D gallium molybdenum selenide grown on a hollow carbon nanofibrous aerogel for high-efficiency electroreduction of nitrogen: Optimized basal plane activity via selenium vacancy modulation

Herein, a novel, Se-vacancy-modulable Ga?Mo?Se layered compound (GayMo1?ySe2?x) is synthesized by rational incorporation of two different kinds of 2D chalcogenides, i.e., transition metal dichalcogenide (MoSe2) and post-transition metal monochalcogenide (GaSe). The strained effect originating from their lattice misfit (?13 %) and the electron nonequilibrium between Mo4+ and Ga2+ induce abundant Se vacancies, whose concentration can be arbitrarily modulated to optimize the basal plane activity. Moreover, a highly porous and conductive hollow carbon nanofibrous aerogel is synthesized for the first time, which serves as an ideal matrix for the in-situ growth of 2D GayMo1?ySe2?x due to integrated 3D percolation network and sufficient electrode?electrolyte contact. The unique architecture and optimized activity contribute to an advanced catalyst towards high-efficiency N2 fixation, delivering an NH3 yield of 2.57 ? 10?10 mol s?1 cm?2 and a Faradaic efficiency of 26.5 % at ?0.3 V vs. RHE in 0.1 M Na2SO4.

» Author: Meng Zhang, Li Zhang, Shengmei Huang, Yan Wang, Yang Si, Chunlan Ma, Peng Zhang, Yi-Tao Liu, Jianyong Yu, Bin Ding

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