Non-precious molybdenum-based catalyst derived from biomass: CO-free hydrogen production from formic acid at low temperature. (15th May 2018)

• Record Type: Journal Article
• Authors: Wang, Junli; Li, Xiumin; Zheng, Junlan; Cao, Ji; Hao, Xiaogang; Wang, Zhongde; Abudula, Abuliti; Guan, Guoqing
• Is Part Of: Energy conversion and management. Volume 164(2018)
• Page Start: 122
• Page End: 131
• Publication Date: 2018-05-15
• Subjects: Formic acid -- Hydrogen production -- Molybdenum carbide -- Biomass derived catalyst -- CO-free; Direct energy conversion -- Periodicals; Energy storage -- Periodicals; Energy transfer -- Periodicals; Énergie -- Conversion directe -- Périodiques; Direct energy conversion; Periodicals; 621.3105
• DOI: 10.1016/j.enconman.2018.02.092
• Languages: English
• ISSNs: 0196-8904

Abstract

Graphical abstract: Highlights: CO-free H2 yielded from HCOOH over non-precious Mo2 C/γ-Mo2 N catalyst was obtained. HCOOH conversion reached above 80% with 100% H2 selectivity at 110 °C. α-Mo2 C and assistant γ-Mo2 N and K were responsible for the excellent performance. Abstract: CO-free hydrogen was successfully produced from the dehydrogenation of formic acid at a temperature near its boiling point of 110 °C by using a high-performance non-precious metal molybdenum based catalyst synthesized from soybean and earth-abundant molybdenum. The effect of carbonization temperature, raw material ratio on the catalytic activity for formic acid decomposition were investigated in details. The catalyst Soy-Mo (0.1) prepared at a carbonization temperature of 750 °C, the weight ratio of the soybean powder to Mo precursor of 1:0.1 showed the best catalytic activity among those as-synthesized catalysts. Even at a temperature as low as 110 °C, HCOOH conversion reached above 80% with a 100% H2 selectivity and a long-term stability. It indicated that the catalysts derived from those biomass enriched in protein and alkaline metals have excellent performance for catalytic formic acid decomposition. This approach provided a new path for design and development of catalysts with high performance for CO-free hydrogen generation from formic acid in a large-scale industrial process.