Wenqiang Tu, Zeyu Liu, Na Li, Ning Yuan, Taher Tarmizi, Song Yang, Yanyan Yang, Zhongliang Yu
Formic acid (FA) is regarded as a potential liquid organic hydrogen carrier due to its relatively high hydrogen density and stability. It is crucial to explore efficient, stable and recyclable non-precious metal heterogeneous catalysts to achieve efficient and highly selective dehydrogenation of FA. Herein, biomass waste-derived γ-Mo2N catalyst is prepared by one-step pyrolysis, which from waste egg liquid by solid reaction with ammonium molybdate (AHM) for addition-free FA dehydrogenation. The results show that the E-Mo2N- 0.05 - 750 catalyst produced with a weight ratio of AHM to waste egg of 0.5/10 with the pyrolysis temperature of 750 °C exhibits the best performance. The catalyst achieves a 388.3 mL/gcat./h gas production rate and the dehydrogenation selectivity over 99% in the additive-free aqueous FA with a high concentration (40 vol.%). Meanwhile, the catalyst demonstrates good stability during five consecutive cycles and the long-term test (45 h). Copyright © 2026. Publishing services by Elsevier B.V.
College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China; School of Chemistry and Environmental Science, Shangrao Normal University, Shangrao, 334001, China; Department of Environmental Engineering, Faculty of Infrastructure and Regional Technology, Institut Teknologi Sumatera, Terusan Ryacudu, Way Hui, Jati Agung, Lampung, Selatan, 35365, Indonesia; Key Laboratory of Preparation and Application of Black Talc Functional Materials, Jiangxi Provincial Department of Education, Shangrao, 334001, China
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