Methanolysis of ammonia borane using binder‐free hierarchical Co@Ni metal‐organic framework nanocolumn arrays catalyst for hydrogen generation. (1st August 2022)

• Record Type: Journal Article
• Authors: Kumar, Dharman Ranjith; Prabu, Samikannu; Chiang, Kung‐Yuh; Oh, Tae Hwan
• Is Part Of: International journal of energy research. Volume 46:Number 13(2022)
• Page Start: 18134
• Page End: 18145
• Publication Date: 2022-08-01
• Subjects: ammonia borane -- Co@Ni‐MOF NCA -- hydrogen generation -- methanolysis; Power resources -- Periodicals; Power (Mechanics) -- Periodicals; Power resources -- Research -- Periodicals; 621.042
• DOI: 10.1002/er.8432
• Languages: English
• ISSNs: 0363-907X

Abstract

Summary: Ammonia borane (AB) is a potential material for chemical hydrogen storage because of its outstanding stability, high hydrogen density, and the development of highly effective hierarchical catalysts for AB hydrolysis. Herein, the hierarchical Co@Ni metal‐organic framework (MOF) nanocolumn arrays (NCAs) on nickel foam (NF) were fabricated through a simple hydrothermal reaction, and the prepared catalysts were characterized using different techniques. The hierarchical Co@Ni‐MOFNCA/NF acts as a catalyst for AB methanolysis for hydrogen production. The catalysts exhibited outstanding performance towards AB methanolysis with the TOF of TOF of 20.54 mol H2 mol catalyst −1 min −1 . As a result, the activation energy of the Co@Ni‐MOF NCA catalyst is 39.72 kJ mol −1 which is compared with some commercial solid support materials such as Al2 O3 and AC. Additionally, the effects of nanocatalyst loading and temperatures were studied for the Co@Ni‐MOF NCA catalyst. Further, a complete investigation proposes that the outstanding catalytic performance of the Co@Ni‐MOF NCA catalyst could be attributed to the synergy between Co and Ni‐MOF NCA. Abstract : Ammonia borane (AB) is a potential material for chemicalhydrogen storage because of its outstanding stability, high hydrogen density, and the development of highly effective hierarchical catalysts for ABhydrolysis. Herein, the hierarchical Co@Ni metal‐organic framework (MOF)nanocolumn arrays (NCAs) on Ni foam (NF) were fabricated through a simplehydrothermal reaction, and the prepared catalysts were characterized usingdifferent techniques.