Dual purpose behavior of Ni-PTC MOF for high performance supercapacitor and water splitting applications
Hydrogen evolution; Metal-organic framework; Ni; Supercapacitors; Water splitting
Metal-organic frameworks (MOFs) have elicited significant interest as next-generation materials for storing and converting energy, owing to their structural versatility and tunable physicochemical properties. In the present work, a nickel-based MOF, referred to as Ni-PTC, was synthesized via a straightforward method and explored for its dual functionality as a supercapacitor electrode and an electrocatalyst for overall water splitting. Structural and morphological analyses confirmed the materials high surface area, hierarchical porosity, and excellent crystallinity. As a supercapacitor electrode, Ni-PTC delivered a high specific capacitance of 953.86 F g?1 at 1 A g?1 and demonstrated superior cycling durability, retaining 92 % of its initial capacitance after 5000 cycles. Its electrocatalytic performance was assessed for both hydrogen (HER) and oxygen evolution reactions (OER), exhibiting overpotentials of 241 mV and 400 mV, respectively, at a current density of 10 mA cm?2. The catalyst also showed excellent operational stability, underscoring its potential in energy-related applications. 2026 Elsevier B.V.
T. S., Sai Sri; Anand, Samika; Sunajadevi, Kalathiparambil Rajendra Pai; Kumar, Abhishek; Yelamaggad, Channabasaveshwar V.; Saravanakumar, B.; Pinheiro, Dephan; Mohan, Mothi Krishna
Colloids and Surfaces A: Physicochemical and Engineering Aspects;Volume;736;Issue;;Article No.;139593;
Restricted Access; Hardcopy may be available in the library
https://doi.org/10.1016/j.colsurfa.2026.139593 https://www.scopus.com/pages/publications/105027591613?origin=resultslist
T. S. S.S., Department of Chemistry, Christ University, Karnataka, Bengaluru, 560029, India; Anand S., Department of Chemistry, Christ University, Karnataka, Bengaluru, 560029, India, Centre for Renewable Energy and Environmental Sustainability, Christ University, Karnataka, Bengaluru, 560029, India; Sunajadevi K.R.P., Department of Chemistry, Christ University, Karnataka, Bengaluru, 560029, India, Centre for Renewable Energy and Environmental Sustainability, Christ University, Karnataka, Bengaluru, 560029, India; Kumar A., Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Karnataka, Manipal, 576104, India, Centre for Nano and Soft Matter Sciences (CeNS), Arkavathi, Survey No.7, Shivanapura, Dasanapura Hobli, Karnataka, Bengaluru, 562162, India; Yelamaggad C.V., SJB Institute of Technology, Health & Education City, Kengeri, Karnataka, Bengaluru, 560060, India, Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Karnataka, Manipal, 576104, India, Centre for Nano and Soft Matter Sciences (CeNS), Arkavathi, Survey No.7, Shivanapura, Dasanapura Hobli, Karnataka, Bengaluru, 562162, India; Saravanakumar B., Department of Physics, Dr. Mahalingam College of Engineering and Technology, Tamil Nadu, Pollachi, 642003, India; Pinheiro D., Department of Chemistry, Christ University, Karnataka, Bengaluru, 560029, India, Centre for Renewable Energy and Environmental Sustainability, Christ University, Karnataka, Bengaluru, 560029, India; Mohan M.K., Department of Sciences and Humanities, Christ University, Karnataka, Bengaluru, 560076, India