Boosting OER performance of IrO2 in acid via urchin-like hierarchical-structure design. Issue 18 (29th April 2021)

• Record Type: Journal Article
• Authors: Deng, Qian; Sun, You; Wang, Jin; Chang, Shengding; Ji, Muwei; Qu, Yunteng; Zhang, Kai; Li, Bo
• Is Part Of: Dalton transactions. Volume 50:Issue 18(2021)
• Page Start: 6083
• Page End: 6087
• Publication Date: 2021-04-29
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/d1dt00329a
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : Urchin-like hierarchical IrO2 nanostructures are obtained by a surfactant-free, wet-chemical approach. The urchin-like IrO2 sample with relatively short needles and small cores obtained at 180 °C shows optimal OER activity and good stability in acid. Abstract : Urchin-like hierarchical IrO2 nanostructures, which are obtained by a surfactant-free, wet-chemical approach, show boosted OER performance in acid with an overpotential of 260 mV @10 mA cm −2 geo under optimal pocessing conditions. The overpotential @10 mA cm −2 geo can be kept below 285 mV for over 30 hours.