A nickel molecular electro-catalyst for generating hydrogen from acetic acid or water

Hydrogen evolution catalyzed by a water-soluble cobalt(II) complex with picolinic acid ions

“…To increase the reaction rate, it is necessary to use an efficient hydrogen evolution reaction (HER) electrocatalyst. Therefore, many research groups, including ours, have tried to design molecular catalysts by employing the more abundant metals, and several complexes of nickel [7,8], cobalt [9][10][11][12][13], copper [14][15][16] and molybdenum [17][18][19] have been developed as electrocatalysts for the reduction of acetic acid or water to form H 2 . Despite much progress in water reduction catalysis, major improvements in several areas, including simplifying structural complexity, increasing catalyst solubility in water, and operating in neutral medium (pH 7.0), are needed before efficient electrocatalytic water reduction can be realized.…”

Electrochemical-driven water reduction catalyzed by a water soluble cobalt(III) complex with Schiff base ligand

“…Yet, one of the key challenges in water splitting is the development of efficient catalysts for water reduction reactions with low overpotentials, good stability, and high turnover rates [7][8][9]. Therefore, a great deal of research efforts have been devoted to the development of effective catalysts based on earth-abundant metals, and molecular complexes that contain nickel [10,11], cobalt [12][13][14], molybdenum [15] and copper [16][17][18] for the reduction of water to form H2. Nevertheless, despite much progress, major improvements in several areas, including lowering overpotentials, increasing catalyst durability, and using earth-abundant elements, are needed before efficient electro-and photo-catalytic water splitting can be realized.…”

Synthesis and electrocatalytic properties of a dinuclear copper(II) complex for generating hydrogen from acetic acid or water

“…To increase the reaction rate and lower the overpotential, it is necessary to use an efficient hydrogen evolution reaction (HER) electrocatalyst. These considerations have led to development of molecular catalysts employing more abundant metals, and several complexes that contain nickel [8][9][10], cobalt [11][12][13], iron [14,15], and molybdenum [16], have been developed as electrocatalysts for reduction of water to form H 2 . Although there has been significant progress in designing molecular catalysts for H 2 evolution, the search for robust and highly active catalysts that can operate in purely aqueous solution still remains a challenge [11].…”