{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Kc BR"],"funding":["Basic Energy Sciences"],"pagination":["165-172"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12933503"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["4(2)"],"pubmed_abstract":["Herein, we introduce a straightforward synthesis approach for highly active dendritic multimetallic high-entropy alloy (DMHEA@PtIrPdAgRu) nanoparticles with sufficient entropic mixing, featuring uniform distribution of five noble group metals (Pt, Ir, Pd, Ag, and Ru) via a block copolymer-mediated one-pot solvothermal reduction method for oxygen evolution reaction (OER). In this synthesis, <i>N</i>,<i>N</i>-dimethylformamide (DMF) is used as a reductant as well as solvent and core-shell-corona-type (poly-(styrene)-<i>block</i>-poly-(vinylpyridine)-<i>block</i>-poly-(ethylene oxide)) (PS-PVP-PEO) block copolymer as a structure directing agent. The cooperative effect between the copolymer architecture and the reducing environment of DMF promoted a confined nucleation mechanism for forming a single-phase dendritic structure HEA with high compositional uniformity, thereby mitigating phase segregation, a common challenge in the synthesis of multimetallic nanoparticles. This prepared DMHEA@PtIrPdAgRu catalyst exhibits a low overpotential of 490 mV to attain a high current density of 100 mA cm<sup>-2</sup> with a Tafel slope of 442 mV dec<sup>-1</sup> for oxygen evolution. The superior OER performance is attributed to the synergistic cooperation among its active and coordinated metal centers as well as the incorporation of corrosion-resistant metal like platinum."],"journal":["Precision chemistry"],"pubmed_title":["Facile One-Pot Block Copolymer-Mediated Solvothermal Approach for Synthesis of High-Entropy Alloy with Enhanced OER Activity."],"pmcid":["PMC12933503"],"funding_grant_id":["DE-SC0023415"],"pubmed_authors":["Kc BR","Bastakoti BP","Yusa SI"],"additional_accession":[]},"is_claimable":false,"name":"Facile One-Pot Block Copolymer-Mediated Solvothermal Approach for Synthesis of High-Entropy Alloy with Enhanced OER Activity.","description":"Herein, we introduce a straightforward synthesis approach for highly active dendritic multimetallic high-entropy alloy (DMHEA@PtIrPdAgRu) nanoparticles with sufficient entropic mixing, featuring uniform distribution of five noble group metals (Pt, Ir, Pd, Ag, and Ru) via a block copolymer-mediated one-pot solvothermal reduction method for oxygen evolution reaction (OER). In this synthesis, <i>N</i>,<i>N</i>-dimethylformamide (DMF) is used as a reductant as well as solvent and core-shell-corona-type (poly-(styrene)-<i>block</i>-poly-(vinylpyridine)-<i>block</i>-poly-(ethylene oxide)) (PS-PVP-PEO) block copolymer as a structure directing agent. The cooperative effect between the copolymer architecture and the reducing environment of DMF promoted a confined nucleation mechanism for forming a single-phase dendritic structure HEA with high compositional uniformity, thereby mitigating phase segregation, a common challenge in the synthesis of multimetallic nanoparticles. This prepared DMHEA@PtIrPdAgRu catalyst exhibits a low overpotential of 490 mV to attain a high current density of 100 mA cm<sup>-2</sup> with a Tafel slope of 442 mV dec<sup>-1</sup> for oxygen evolution. The superior OER performance is attributed to the synergistic cooperation among its active and coordinated metal centers as well as the incorporation of corrosion-resistant metal like platinum.","dates":{"release":"2026-01-01T00:00:00Z","publication":"2026 Feb","modification":"2026-07-16T22:58:23.328Z","creation":"2026-07-12T03:09:36.216Z"},"accession":"S-EPMC12933503","cross_references":{"pubmed":["41756613"],"doi":["10.1021/prechem.5c00094"]}}