Cobalt–platinum intermetallic composite loaded on pyridinic N-enriched carbon for acidic hydrogen evolution catalysis with ultralow overpotential

Abstract

Platinum is a highly efficient catalyst for hydrogen evolution reaction (HER) in acidic media, but its widespread use has been seriously impeded by its scarcity and high cost. Herein, we...

How advances in theoretical chemistry meet industrial expectations in electrocatalysts for water splitting

“…Industry is still far from developing an optimal catalyst for HER catalysis, one that is efficient, stable, and cost-efficient. The Pt x Co y alloys display high activity, due to the specific magnetic arrangements of the orbitals and atoms, [167][168][169][170][171] but they do not represent a sustainable solution, because of the still elevated cost based on its high content of Pt. Studies in HER catalysis are still incomplete, comprehensive models should be employed to predict and design electrocatalysts for industrial electrolysers taking into consideration all the reaction steps/events and orbital quantum physics.…”

Metal–support interactions of 2D carbon-based heterogeneous catalysts for the hydrogen evolution reaction

“…The high content of pyridinic N on the carbon substrate could benefit the strong interaction between the carbon support and CoPt 3 nanoparticles, which directly contributed to its robust HER activity (41 mV at 10 mA cm −2 in 0.5 M H 2 SO 4 ). 38 Wang et al reported the remarkable activity of Pd nanoparticles by controlling MSI with nitrogen-doped porous carbon (N-PC). The Pd/N-PC catalyst an exhibited ultralow overpotential of 15.5 mV at 10 mA cm −2 in 0.5 M H 2 SO 4 .…”

Non-precious metal-based catalysts for water electrolysis to produce H2 under industrial conditions

“…23 In the current commercial water electrolyzers, the benchmark electrocatalysts are noble-metal catalysts such as platinum, ruthenium, and iridium. [24][25][26][27] Despite their excellent electrocatalytic efficiency for water splitting, the expensive cost and scarcity of noble-metal catalysts impede their widespread use. Platinum is a common catalyst in various industries, although its corrosion resistance in alkaline media is the main obstacle.…”