Recently, the team of Professor Wang Liang from the School of Chemical Engineering of ZJUT proposed that polyallylamine-encapsulated Ir metallene with defects and porous structure (Ir@PAH metallene) could be easily fabricated by a one-step wet chemical reduction method and applied it to electrocatalytic acid hydrogen evolution reaction. The research titled with Surface Engineering of Defective and Porous Ir Metallene with Polyallylamine for Hydrogen Evolution Electrocatalysis was reported online by Advanced Materials on 8 March 2022. This research work provides a unique solution of excellent hydrogen evolution reaction (HER) performance in improving efficiency and reducing consumption by developing efficient electrocatalyst from electrolytic water.
Professor Wang liang's team has long been committed to the research field of energy electrocatalysis. The electrocatalytic activity and stability of Ir metalene were improved by surface functionalization. The unique metalene structure and the advantages of IR-PAH interface make Ir@PAH have excellent electrocatalytic hydrogen evolution performance. The overpotential at 10 mA cm-2 current density was only 14 mV, the Tafel slope was as low as 31.2 mV Dec-1, and there was almost no active decay after stability testing. This work provides an efficient electrocatalyst for hydrogen production by electrolysis of water.
Article link： https://onlinelibrary.wiley.com/doi/abs/10.1002/adma.202110680
