Atmanto Heru Wibowo, Husni Wahyu Wijaya, Adhitasari Suratman, Annisa Nur Buana Wati, Moch Robitul Choir, I Wayan Dasna, Javier Cepeda
The coordination polymer (CP) of [Mn(3-ampy)2(N(CN)2)2]n formula (ampy = aminopyridine) known for its good magnetic properties has surprisingly shown promising performance for electrocatalysis of oxygen reduction reaction (ORR). Mn-based metal-organic compounds are mostly considered as inferior materials for such electrocatalytic reactions in alkaline solutions. In contrast, in the present study, above mentioned Mn CP supported with Vulcan Carbon XC72R showed an exceptionally efficient oxygen reduction via a pseudo 4-electron pathway with maximum n electron transfer (n) = 3.79 at 0.8 V. The concentration of material supported has been studied to optimize its electrocatalytic properties, finding that best ratio of the CP on supporting material is 1:1 (w/w). The resulting hybrid exhibitis an onset potential of 0.85 V vs RHE, a value which is consistent with the working potential range of a fuel cell. This result indicated that this Mn-based CP is not only good for the magnetic applications, but also for electrocatalytic applications. © 2026 Published by Elsevier B.V.
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Jl. Ir. Sutami 36A, Kentingan, Surakarta, 57126, Indonesia; Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang, 65145, Indonesia; Chemistry Department, Faculty of Mathematics and Natural Sciences, Gadjah Mada University, Sekip Utara Bulaksumur, Yogyakarta, 55281, Indonesia; Dpto. Química Aplicada, Facultad de Química, UPV / EHU, Paseo Manuel Lardizábal, 3, Donostia, 20018, Spain
