{"doi":"10.1021/ja407115p","title":"Benchmarking Heterogeneous Electrocatalysts for the Oxygen Evolution Reaction","abstract":"Objective evaluation of the activity of electrocatalysts for water oxidation is of fundamental importance for the development of promising energy conversion technologies including integrated solar water-splitting devices, water electrolyzers, and Li-air batteries. However, current methods employed to evaluate oxygen-evolving catalysts are not standardized, making it difficult to compare the activity and stability of these materials. We report a protocol for evaluating the activity, stability, and Faradaic efficiency of electrodeposited oxygen-evolving electrocatalysts. In particular, we focus on methods for determining electrochemically active surface area and measuring electrocatalytic activity and stability under conditions relevant to an integrated solar water-splitting device. Our primary figure of merit is the overpotential required to achieve a current density of 10 mA cm(-2) per geometric area, approximately the current density expected for a 10% efficient solar-to-fuels conversion device. Utilizing the aforementioned surface area measurements, one can determine electrocatalyst turnover frequencies. The reported protocol was used to examine the oxygen-evolution activity of the following systems in acidic and alkaline solutions: CoO(x), CoPi, CoFeO(x), NiO(x), NiCeO(x), NiCoO(x), NiCuO(x), NiFeO(x), and NiLaO(x). The oxygen-evolving activity of an electrodeposited IrO(x) catalyst was also investigated for comparison. Two general observations are made from comparing the catalytic performance of the OER catalysts investigated: (1) in alkaline solution, every non-noble metal system achieved 10 mA cm(-2) current densities at similar operating overpotentials between 0.35 and 0.43 V, and (2) every system but IrO(x) was unstable under oxidative conditions in acidic solutions.","journal":"Journal of the American Chemical Society","year":2013,"id":2158,"datarank":16.349610154465406,"base_score":8.81001204797317,"endowment":8.81001204797317,"self_citation_contribution":1.3215018071959759,"citation_network_contribution":15.02810834726943,"self_endowment_contribution":1.3215018071959759,"citer_contribution":15.02810834726943,"corpus_percentile":90.3,"corpus_rank":1603,"citation_count":6700,"citer_count":195,"citers_with_citation_signal":195,"citers_with_endowment":195,"datacite_reuse_total":0,"is_dataset":false,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2013-10-30","authors":[{"id":25232,"name":"Suho Jung","orcid":"0000-0002-8119-3902","position":1,"is_corresponding":false},{"id":25233,"name":"Jonas C. Peters","orcid":"0000-0002-6610-4414","position":2,"is_corresponding":false},{"id":25234,"name":"Thomas F. Jaramillo","orcid":"0000-0001-9900-0622","position":3,"is_corresponding":false},{"id":25231,"name":"Charles C. L. McCrory","orcid":"0000-0001-9039-7192","position":0,"is_corresponding":true}],"reference_count":81,"raw_metadata":{"citation_network_status":"fetched"},"created_at":"2026-03-01T18:20:47.508186Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}