Ni-based ultrathin nanostructures for overall electrochemical water splitting

Abstract

Hydrogen produced by electrochemical water splitting is considered a sustainable fuel source, an ideal way to solve the energy problem and its environmental challenges. However, industrial production of hydrogen from...

Exceptional alkaline hydrogen evolution by molybdenum-oxide-nitride-based electrocatalysts with fast water-dissociation and hydrogen-adsorption kinetics

“…12,13 The major challenge of TMCs is the high activation barrier during the cleavage of the strong H-OH bonds (water dissociation/Volmer step). 12,14,15 Taking molybdenum dioxide (MoO 2 ) as an example, MoO 2 is beneficial for water dissociation due to its lower unoccupied orbital center that allows the H atoms to be easily and tightly adsorbed on the surface of the Mo atoms. 16,17 However, MoO 2 is limited by the strong bonds formed during the HER process between molybdenum and H ads , and thus requires favorable H adsorption sites.…”

Phase engineering of iron group transition metal selenides for water splitting

“…The urgency to develop novel clean renewable energy storage and conversion systems has become more pressing with the decline of fossil fuels and the increasing levels of pollution. 1,2 Hydrogen, a well-known clean energy source, is widely recognized as an ideal alternative to traditional fossil fuels due to its high energy density (i.e., 120 MJ kg À1 versus gasoline 42.86 MJ kg À1 ). [2][3][4] In comparison with traditional energy development technologies, sustainable hydrogen production by water splitting has enhanced environmental and economic effectiveness.…”

Constructing NiMoP nanorod arrays with a highly active Ni2P/NiMoP2 interface for hydrogen evolution in 0.5 M H2SO4 and 1.0 M KOH media

“…To reduce the use of fossil fuels, it is essential to explore green, clean and pollution-free renewable energy sources. [1][2][3][4] Hydrogen energy is regarded as a friendly alternative to traditional fossil fuels due to its wide range of sources and high energy density and water being the only combustion product. [5][6][7][8] Water electrolysis technology is considered the most promising way to obtain hydrogen (H 2 ).…”