ItemArticle

Tailored cobaltnickel phospho-boride from metalorganic frameworks as high-performance catalyst for NaBH4 dehydrogenation

Title
Tailored cobaltnickel phospho-boride from metalorganic frameworks as high-performance catalyst for NaBH4 dehydrogenation
Creator
Abraham, Anitha; Fernandes, Rohan; S M, Nandana; Sunny, Jismy; John, Riya Alice B.; Gupta, Suraj; Suryawanshi, Akash; Bhabal, Rinkoo; Patel, Rupali; Patel, Nainesh
Description
Achieving efficient hydrogen generation (HGR) via the hydrolysis of sodium borohydride (NaBH4) remains a key challenge in developing cost-effective and high-performance catalytic systems for chemical hydrogen storage. In this study, we present a novel bimetallic phospho-boride-modified metal-organic framework catalyst (CoNi-PB-MOF), synthesized through a two-step process involving hydrothermal assembly followed by chemical reduction. The co-incorporation of phosphorus and boron into the bimetallic Co-Ni MOF facilitates the formation of 2D MOF-derived nanoplates embedded with Co3O4 nanoparticles doped with P and B. This hybrid structure features a high surface area, abundant active sites, and reduced charge-transfer resistance, enabling superior catalytic activity. The CoNi-PB-MOF catalyst achieves an impressive HGR of 7.33 L/min/g from NaBH4 hydrolysis, outperforming its monometallic counterparts. Comprehensive physicochemical and electrochemical analyses confirm the synergistic roles of Co, Ni, P, and B in enhancing catalytic performance, while preserving the porous MOF morphology post-modification. The CoNi-PB-MOF catalyst exhibits a low activation energy of 25.6 kJ/mol, along with excellent thermal stability and cyclic durability under harsh conditions. Kinetic studies reveal a zero-order reaction with respect to NaBH4 concentration, attributed to efficient mass transport and surface diffusion on the optimized catalyst surface. 2025 Elsevier B.V.
Source
Journal of Alloys and Compounds;Volume;1040;Issue;;Article No.;183440;
Date
01-01-2025
Publisher
Elsevier Ltd
Subject
Bimetallic Catalysts; Hydrogen Generation Rate; Metal-Organic Framework; NaBH4 Hydrolysis
Coverage
Abraham A., Department of Physics and Electronics, CHRIST University, Bengaluru, 560029, India; Fernandes R., Department of Physics and Electronics, CHRIST University, Bengaluru, 560029, India; S M N., Department of Physics and Electronics, CHRIST University, Bengaluru, 560029, India; Sunny J., Department of Physics and Electronics, CHRIST University, Bengaluru, 560029, India; John R.A.B., Department of Physics and Electronics, CHRIST University, Bengaluru, 560029, India; Gupta S., Advanced Materials Department, Joef Stefan Institute, Jamova 39, Ljubljana, 1000, Slovenia; Suryawanshi A., Department of Physics and Electronics, CHRIST University, Bengaluru, 560029, India; Bhabal R., Department of Physics and Electronics, CHRIST University, Bengaluru, 560029, India; Patel R., Department of Physics and Electronics, CHRIST University, Bengaluru, 560029, India; Patel N., Department of Physics and Electronics, CHRIST University, Bengaluru, 560029, India
Rights
Restricted Access; Hardcopy may be available in the library
Relation
ISSN: 9258388; CODEN: JALCE
Format
online
Language
English
Type
Article

Citation

Abraham, Anitha; Fernandes, Rohan; S M, Nandana; Sunny, Jismy; John, Riya Alice B.; Gupta, Suraj; Suryawanshi, Akash; Bhabal, Rinkoo; Patel, Rupali; Patel, Nainesh, “Tailored cobaltnickel phospho-boride from metalorganic frameworks as high-performance catalyst for NaBH4 dehydrogenation,” CHRIST (Deemed To Be University) Institutional Repository, accessed June 18, 2026, https://archives.christuniversity.in/items/show/22320.

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