Recent Advances in Water-Splitting Electrocatalysts Based on Electrodeposition

Abstract

Green hydrogen is being considered as a next-generation sustainable energy source. It is created electrochemically by water splitting with renewable electricity such as wind, geothermal, solar, and hydropower. The development of electrocatalysts is crucial for the practical production of green hydrogen in order to achieve highly efficient water-splitting systems. Due to its advantages of being environmentally friendly, economically advantageous, and scalable for practical application, electrodeposition is widely used to prepare electrocatalysts. There are still some restrictions on the ability to create highly effective electrocatalysts using electrodeposition owing to the extremely complicated variables required to deposit uniform and large numbers of catalytic active sites. In this review article, we focus on recent advancements in the field of electrodeposition for water splitting, as well as a number of strategies to address current issues. The highly catalytic electrodeposited catalyst systems, including nanostructured layered double hydroxides (LDHs), single-atom catalysts (SACs), high-entropy alloys (HEAs), and core-shell structures, are intensively discussed. Lastly, we offer solutions to current problems and the potential of electrodeposition in upcoming water-splitting electrocatalysts.

Single atom catalysts for water electrolysis: from catalyst-coated substrate to catalyst-coated membrane

“…Solution-based methods include sol–gel methods, electrodeposition, chemical bath deposition, etc. 114–119 Ahn et al . demonstrated the preparation of Ni/carbon paper (CP) electrodes through electrodeposition, serving as both the anode and cathode for AEMWE.…”

Best Practices in Membrane Electrode Assembly for Water Electrolysis

“…63−65 Transition metal oxides (TMOs) have garnered considerable attention due to their diverse crystal structures, abundant availability, eco-friendliness, and strong oxygen evolution capabilities. 66 Among metal oxide electrocatalysts, cobalt-based oxides have been extensively explored for their straightforward synthesis methods and high effectiveness in OER. Wu et al adjusted the electronic structure of CoO x for more favorable states by implanting Ru content into the amorphous CoO x .…”

Photocatalytic Hydrogen Evolution of TiZrNbHfTaOx High-Entropy Oxide Synthesized by Mechano-Thermal Method

“…Considering these advantages, such a fuel cycle will solve the important problems that humanity is currently experiencing. However, in order to use such a fuel in our daily lives, highly effective catalysts that can split water under sunlight are needed [7][8][9][10][11][12]. There are some factors that affect efficiency in energy production.…”