Ultrafine ruthenium–iridium–tellurium nanotubes for boosting overall water splitting in acidic media

Abstract

Design of high performance electrocatalysts is critical to electrocatalytic water splitting in acidic media. Herein, a replacement reaction with Te nanowires (NWs) is employed for the synthesis of ternary RuIrTe...

Ultrathin IrRu nanocages with tunable electronic reciprocity for highly efficient water splitting in acidic media

“…4g and Table S1 †. [37][38][39][40][41][42][43][44][45][46][47][48][49] Since the electro-chemical stability is a major criterion to evaluate the practicability of electrocatalysts, ADTs were performed for a series of Ir x Ru 1−x nanocages. Aer 1000 cycles, the h 10 loss of Ir 0.5 Ru 0.5 nanocages for the HER and OER was determined to be 7 (Fig.…”

Iridium nanohollows with porous walls for acidic water splitting

“…31–34 As a result, the actual catalytic structure of an alloying catalyst is a porous Ir skeleton derived from the continuous dissolution of transition metals – a process known as dealloying. 35–38 Notably, such porous Ir architectures were recently shown to possess superior OER performance over their nanoparticulate counterparts. Markovic and co-workers reported an Ir nanoporous architecture, prepared from the dealloying of an Ir 25 Os 75 precursor, which exhibited an exceptional balance between activity and stability for the acidic OER.…”

Electronic modulation of cobalt–molybdenum oxideviaTe doping embedded in a carbon matrix for superior overall water splitting

“…[1][2][3][4] Electrochemical water splitting has attracted extensive attention as an efficient method for the production of high-purity H 2 . [5][6][7][8] However, the sluggish reaction kinetics of the oxygen evolution reaction (OER) and the hydrogen evolution reaction (HER) as important half-reactions of water splitting can limit their practical operating efficiency. [9][10][11] At present, noble metal Pt and Ir/Ru-based electrocatalysts can significantly reduce the overpotentials of the HER and OER reactions, respectively.…”