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Sonolytic and ultrasound-assisted hydrogen production: insights, trends, and future perspectives

Ephraim Bonah AgyekumDepartment of Nuclear and Renewable Energy, Ural Federal University Named After the First President of Russia, Boris Yeltsin, 19 Mira Street, Ekaterinburg 620002, RussiaMurad Irshied Al-MaaitahFaculty of Agricultural Technology, Department of Agricultural Biotechnology and Genetic Engineering, Hourani Center for Applied Scientific Research, Al-Ahliyya Amman University, Amman, JordanFarhan Lafta RashidDepartment of Petroleum Engineering, College of Engineering, University of Kerbala, Karbala 56001, IraqArman AmeenDepartment of Building Engineering, Energy Systems and Sustainability Science, University of Gävle 801 76 Gävle, SwedenSeepana PravenkumarDepartment of Nuclear and Renewable Energy, Ural Federal University Named After the First President of Russia, Boris Yeltsin, 19 Mira Street, Ekaterinburg 620002, Russia

Energy Conversion and Management Xjournal2025en

ABI

Annotatsiya

• Research in ultrasound-assisted H 2 evolved rapidly from 2000 to 2025. • HER optimization via sonocatalysis with g-C 3 N 4 , TiO 2 , and quantum dots. • Trends show rising interest in piezocatalysis and biohydrogen pathways. • Hybrid systems link sonochemistry with photo-, electro-, and thermocatalysis. • China leads globally, with India, Korea, and others expanding collaboration. This study employs the bibliometric review method to assess the evolution of research in sonolytic and ultrasound-assisted hydrogen production between 2000 and 2025 using data from the Scopus database. The study found research done so far as a dynamic, cross-disciplinary field driven by global decarbonization and technological innovation. Keyword and thematic mapping identified a central focus towards maximizing the hydrogen evolution reaction (HER) with the assistance of ultrasound catalysis, with advanced materials like g-C 3 N 4 , TiO 2 , and quantum dots. Emerging themes of piezocatalysis, biohydrogen, and ultrasonication-enhanced pretreatment indicate a trend towards multifunctional, sustainable, and bio-integrated processes. The clustering analysis identified distinct strategic research directions, including visible-light-driven heterojunctions, anticorrosion electrodes, ultrasonic fermentation, and hybrid catalytic systems integrating sonochemistry with photocatalysis, electrocatalysis, and thermochemical reforming. Non-noble metal catalysts and nanostructures enabled by sonication are especially gaining prominence owing to their efficiency and scalability. The country-level analysis revealed a commanding position for China, with growing contributions from India, South Korea, and strategic international collaborations. Together, the field is transitioning from fundamental research to application-oriented innovation, and the future opportunity rests in scalable, hybrid systems that integrate ultrasonic, optical, and biochemical processes. These findings suggest that ultrasound-assisted hydrogen generation may contribute to advances in sustainable energy technologies and potential industrial implementation.

Hali tarjima qilinmagan

Mavzular

Ultrasound and Cavitation Phenomena Advanced oxidation water treatment Advanced Photocatalysis Techniques

Identifikatorlar

DOI: 10.1016/j.ecmx.2025.101415

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