Toward highly efficient water electrolysis for sustainable hydrogen production
Taeseup Song a b, Seunggun Choi a, Joonhyeok Park a, Myeongwoo Ryu a, Insung Hwang a, Seungmin Han a, Joohun Sun a, Ungyu Paik a
a Department of Energy Engineering, Hanyang University, Seoul, Republic of Korea, 04763
b Department of Battery Engineering, Hanyang University, Seoul, Republic of Korea, 04763
Materials for Sustainable Development Conference (MATSUS)
Proceedings of MATSUS Fall 2024 Conference (MATSUSFall24)
#EEInt - Electrode-Electrolyte Interfaces in Electrocatalysis
Lausanne, Switzerland, 2024 November 12th - 15th
Organizers: Yu Katayama and Mariana Monteiro
Oral, Seunggun Choi, presentation 229
DOI: https://doi.org/10.29363/nanoge.matsusfall.2024.229
Publication date: 28th August 2024

Net-zero initiatives are critical in addressing environmental and climate change issues. Energy transition from fossil fuels to renewable sources is imperative in achieving net-zero initiatives. However, the intermittent nature of renewable energy necessitates the integration of "green hydrogen" into the renewable energy system. Green hydrogen, produced via electrolysis using renewable energy, is applicable in transportation, energy storage and industry, promoting a sustainable and decarbonized energy system. Despite its potential, green hydrogen production remains more expensive than traditional methods due to the low efficiency of water electrolysis. Therefore, the development of efficient electrocatalysts is crucial for sustainable hydrogen production and energy transition. This study presents a novel and comprehensive approach to developing high-performance electrocatalysts for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) by focusing on phase engineering, tuning electron configuration, and interfacial engineering. The integrated approach results in developing electrocatalyst with low overpotentials, high current densities, and exceptional stability, making it a promising candidate for sustainable hydrogen production.

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