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Updated: May 6, 2026
Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
Published on: October 5, 2019
Hierarchical Hydrogen-Bonded Organic Framework-Templated Ru-Borophene Hybrid: Synergistic Interface Engineering
S Sarmila1, Sethumathavan Vadivel1, P Sujita1
1Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu 603203, India.
Abstract:
The oxygen evolution reaction (OER) is a sluggish half-reaction that makes water electrolysis much less efficient. To achieve a more sustainable approach to O2 production, it is necessary to develop highly effective and stable electrocatalyst materials. In this work, a ternary hydrogen-bonded organic framework (HOF)-templated Ru-modified borophene (HOF-BB-Ru) electrocatalyst is synthesized that involves the construction of an HOF-borophene heterostructure and subsequent integration of Ru species. This ternary structure increases the accessibility of the active sites, enhancing charge-transfer properties and improving structural stability. The XRD, SEM, TEM, and XPS analyses revealed that the ternary framework was successfully formed and chemically integrated. Electrochemical analysis, including linear sweep voltammetry (LSV), chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS), reveals significantly improved OER kinetics for HOF-BB-Ru. The HOF-BB-Ru catalyst exhibited low overpotential of 349 mV in an alkaline electrolyte, 420 mV in alkaline seawater (simulated), and 473 mV in natural seawater at the current density of 50 mA cm-2. These findings concluded that the HOF-BB-Ru electrocatalyst has the capability to work effectively across a wide range of electrolytic conditions, demonstrating its strength and flexibility. Finally, this study introduces a heterostructure that exhibits significant efficiency in the use of OER application in real marine water environments.
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