Recent development and challenges in fuel cells and water electrolyzer reactions: an overview

Abstract

This review expresses recent trends in electrocatalysts towards hydrogen production and water oxidation. The recent and future trends with different strategies for the development of electrocatalysts for fuel cells are highlighted.

Novel Hybrid Composites Based on Polymers of Diphenyl-Amine-2-Carboxylic Acid and Highly Porous Activated IR-Pyrolyzed Polyacrylonitrile

“…Composite materials based on conjugated polymers and carbon nanomaterials are promising for the creation of electrochemical current sources, supercapacitors, rechargeable batteries, low-temperature fuel cells, and solar panels, for the remediation of water resources, etc. [ 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ].…”

Ultralow-iridium content NiIr alloy derivative nanochain arrays as bifunctional electrocatalysts for overall water splitting

“…[9][10][11] Thus, it is necessary to develop low-cost and bifunctional electrocatalysts with facile strategies. Although, a great deal of research has been performed in order to investigate nonnoble metal-based electrocatalysts for the OER and HER, 12,13 their overpotentials are still not satisfactory, and their longterm durability is usually tested at low current density, mostly less than 100 mA cm −2 , and these assessment criteria can't meet the requirement for industrial applications. [14][15][16][17][18] On the other hand, as the precious IrO 2 is considered to have excellent OER activity and durability, [19][20][21] researchers have devoted tremendous effort to minimizing the Ir loading on the electrode and improving its utilization through various modication strategies.…”

Enhanced activity of Co–Mo–S catalysts towards hydrodesulfurization and hydrogen evolution reaction via NaBH4 assisted formation

“…9,10 The Co-Mo-S catalyst is a widely industrialized HDS catalyst, while MoS 2 and metal-doped MoS 2 catalysts have potential as hydrogen evolution catalysts for their low-cost, near zero Gibbs free energy of hydrogen adsorption, and they are noncorrosive. [11][12][13][14][15][16][17][18] Considering that HDS and HER involve hydrogenation and dehydrogenation processes, which are inverse reactions, the activity and correlation of Co-Mo-S based catalysts between these two reactions are worthy of indepth investigation. 19,20 It has been found that the size, morphology and structure of MoS 2 have a certain correlation with its catalytic activity.…”