Researchers at UNIST (Ulsan National Institute of Science and Technology) have found a new highly efficient, lower-cost catalyst for hydrogen production and a practical evaluation method for electrodes.
The institute’s research team led by Professor Jong-beom Baek (School of Energy and Chemical Engineering) developed ‘Ru@MWCNT,’ a catalyst for water splitting by integrating ruthenium and Multi-Walled Carbon NanoTube (MWCNT). The performance evaluation said the new catalyst is better than widely used Pt/C (Platinum on carbon) in many ways, UNIST claimed, even with simple synthesis. The cost of the new catalyst would be also lower than platinum-based catalysts, as ruthenium’s price is 1/3 of platinum.
Moreover, the team created and employed a new performance evaluation method, in which the actual hydrogen production is measured. As a result, in the same condition, Ru@MWCNT produced 15.6% more hydrogen than Pt/C catalyst. Ru@MWCNT also recorded 92.2% of faradaic efficiency compared to Pt/C’s 85.9%. Professor Baek said the evaluation method can be later employed for the test of other catalysts in the perspective of commercialization.