Jakarta, INTI - The National Research and Innovation Agency (BRIN) has developed an innovative NiFe-LDH/Ag₃PO₄ composite material to improve the production of clean hydrogen and oxygen through the water splitting process, supporting the advancement of more efficient and sustainable energy technologies.
Advanced Material Engineering for Hydrogen Production
Research conducted by BRIN’s Research Center for Catalysis focuses on enhancing electrocatalytic performance through heterostructure engineering by combining NiFe-LDH and Ag₃PO₄ materials.
Yusuf Mathiinul Hakim, a researcher at BRIN’s Research Center for Catalysis, explained that hydrogen is considered one of the most promising clean energy sources and plays a vital role in accelerating the transition toward sustainable energy systems.
“NiFe-LDH has been widely explored as a transition metal-based catalyst due to its relatively low production cost and favorable electrochemical activity,” said Yusuf.
Despite its advantages, NiFe-LDH still faces challenges related to limited electrical conductivity, which can restrict its performance in the hydrogen evolution reaction.
To address this limitation, the research team engineered a heterostructure composite by integrating NiFe-LDH with Ag₃PO₄, where Ag₃PO₄ functions as a supporting semiconductor material.
According to Yusuf, this approach is expected to optimize the electronic structure and strengthen the interfacial interaction between the two materials, with structural analysis carried out using X-ray Diffraction (XRD) and Raman Spectroscopy.
Electrochemical Tests Reveal Improved Catalytic Performance
Electrochemical evaluations demonstrated that the NiFe-LDH/Ag₃PO₄ composite achieved a significantly higher electrochemical surface area (ECSA) compared with each individual material.
A larger ECSA indicates the availability of more active sites, enabling electrochemical reactions to occur more efficiently.
In Linear Sweep Voltammetry (LSV) testing, the NiFe/AP composite recorded the lowest overpotential of 156.6 mV, outperforming both pure NiFe-LDH and standalone Ag₃PO₄ materials.
“The increase in ECSA confirms that the heterostructure formation provides more active sites for the reaction,” Yusuf emphasized.
The findings demonstrate that the heterostructure engineering of NiFe-LDH/Ag₃PO₄ effectively enhances electrocatalytic activity in water splitting, making it a promising candidate material for more efficient and sustainable hydrogen production.
This innovation is expected to contribute to the development of clean energy technologies by improving hydrogen production efficiency, reinforcing hydrogen’s potential as one of the key energy sources of the future.
Conclusion
The development of the NiFe-LDH/Ag₃PO₄ heterostructure by BRIN represents a significant advancement in clean hydrogen technology. By improving electrocatalytic performance and increasing the efficiency of the water splitting process, this innovative material offers strong potential as a sustainable solution for future hydrogen production. The research also highlights the importance of advanced material engineering in supporting the global transition toward cleaner, greener, and more reliable energy systems.
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