Development of nano IrO2 composite-reinforced nickel–phosphorous electrodes for hydrogen evolution reaction

Physico-chemical characterization of IrO2–SnO2 sol-gel nanopowders for electrochemical applications

“…Moreover, IrO 2 -based oxides have been recently investigated as energy storage materials [21] and as electrocatalysts for oxygen reduction reaction (ORR) [22][23][24], hydrogen evolution reaction (HER) [25][26][27] and electrooxidation of organic pollutants [28,29].…”

Influence of deposition current density on the composition and properties of electrodeposited Ni+RuO2 and Ni+IrO2 composites

“…[5]). The fact that, according to Shibli et al [27], co-deposition of IrO 2 -TiO 2 particles prepared at 6450°C with a Ni-P matrix, significantly improved its activity in h.e.r., might provide support to this hypothesis. Another possible reason for the poor electrocatalytical activity of Ni + IrO 2 composites is the partial reduction of IrO 2 to less active compounds, e.g.…”

“…We obtained electrodes of large surface area by depositing Ni + RuO 2 at high cathodic current densities from NiCl 2 , NH 4 Cl electrolyte, conditions described by Marozzi et al [25,26] as appropriate to produce porous Ni layers. To the best of our knowledge, the deposition of IrO 2 -based composites to be used as cathodes has been carried out only with a nickel-phosphorous matrix, in an electroless process [27], and with a non-stoichiometric tungsten oxide (WO x ) matrix, by cyclic voltammetry [28].…”

Improved hydrogen evolution on glassy carbon electrode modified with novel Pt/cetyltrimethylammonium bromide nanoscale aggregates

“…The hydrogen evolution reaction (HER) is one of the most widely studied reactions in electrochemistry and is important for the development of water electrolysis and fuel cell technology [1][2][3][4]. The production of electrocatalysts is still the focus of the development of hydrogen-based fuel cell systems as power sources for emission-free electric vehicles.…”