Rationality in the new oxygen evolution catalyst development

Abstract

Anodic oxygen evolution has gained significant prominence in electrochemical research in the last decade in connection with renewable electricity storage. With water being the only available fossil free source of hydrogen, which is deemed the primary storage medium, the water electrolysis optimization is one of the biggest challenges of today's electrochemistry. A development of novel OER catalysts is motivated to increase the feasibility of the current OER catalysts in terms of activity, stability and price. This review summarizes the most recent synthetic approaches in OER catalyst synthesis for acid and alkaline electrolyzers stressing the structural aspects of the proposed catalysts. The reported novel catalyst approaches are aligned with existing theoretical and experiment based descriptors for rational of oxygen evolution activity improvement.

Investigation of mixed-metal (oxy)fluorides as a new class of water oxidation electrocatalysts

“…We point the interested reader to several recent reviews and perspectives on metal-oxide OER catalysts. [12][13][14][15][16][17] The utilization of inductive effects in electrocatalysis is an effective method to modulate materials' performance. [18][19][20] Substitution with metals having different electronegativity will induce the tendency to donate or withdraw electron density.…”

Heading to Distributed Electrocatalytic Conversion of Small Abundant Molecules into Fuels, Chemicals, and Fertilizers

“…The reader can find excellent focused reviews for each of the analyzed reactions. [20][21][22][23][24][25][26][27][28] A brief analysis of the number of scientific reports, funded demonstration projects, and commercially available products already suggests that these four processes largely differ in terms of development and that low-temperature routes receive preferential attention (Figure 2). In the case of water electrolysis, more than 20,000 research articles (a number that has rapidly increased over the last years), ca.…”

“…Descriptors based on experimentally accessible data are available but are generally limited to a single structural type. Recently, the metal-metal distance has been introduced by Rossmeisl et al 20 and applied to various structures with promising results (Figure 3C).…”

Few-atom cluster model systems for a hydrogen economy

“…An excellent, short review on the contemporary challenges of water electrolysis catalysts has been written by Kibsgaard and Chorkendorff [34]. The question remains: how to go about the rational design of improved catalysts [35]?…”