Selective N2/H2O adsorption onto 2D amphiphilic amorphous photocatalysts for ambient gas-phase nitrogen fixation

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Ziyang Lu
  • Sandra Elizabeth Saji
  • Julien Langley
  • Yunxiang Lin
  • Zhirun Xie
  • Ke Yang
  • Lei Bao
  • Yiyang Sun
  • Shengbai Zhang
  • Li Song
  • Nicholas Cox
  • Zongyou Yin

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number120240
Journal / PublicationApplied Catalysis B: Environmental
Volume294
Online published19 Apr 2021
Publication statusPublished - 5 Oct 2021

Abstract

The gas-phase Haber–Bosch process has been the main industrial source of ammonia over the last century. However, its reliance on high temperature and high pressure for enormous energy input emits greenhouse gas to air and is associated with the depletion of fossil fuels. The need of the hour is to replace this method with environmentally sustainable processes, among which, photocatalytic nitrogen reduction has attracted much attention. In this work, we report a low cost, scalable manufacturing of gas-phase photoreactors for nitrogen reduction under ambient conditions based on 2D amorphous molybdenum oxysulfides, i.e. MoS2+x-MoO3-y composites. They show excellent nitrogen reduction efficiencies of ∼141 μmol/g/h with remarkably stable performance. The amphiphilic MoS2+x and MoO3-y composites selectively chemisorb and activate N2 and H2O molecules, respectively, and enable multiple photodriven redox reactions towards NH3 evolution. Such photoreactors for ambient ammonia synthesis provides a potentially feasible route towards next-generation gas-phase industrial ammonia production.

Research Area(s)

  • 2D amorphous, Amphiphilic, Gas-phase photocatalysis, N2 fixation, Selective adsorption

Citation Format(s)

Selective N2/H2O adsorption onto 2D amphiphilic amorphous photocatalysts for ambient gas-phase nitrogen fixation. / Lu, Ziyang; Saji, Sandra Elizabeth; Langley, Julien; Lin, Yunxiang; Xie, Zhirun; Yang, Ke; Bao, Lei; Sun, Yiyang; Zhang, Shengbai; Ng, Yun Hau; Song, Li; Cox, Nicholas; Yin, Zongyou.

In: Applied Catalysis B: Environmental, Vol. 294, 120240, 05.10.2021.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review