Science Daily  June 26, 2023 CoSn(OH)6 (CSO) is a perovskite-type hydroxide that is a promising catalyst for the oxygen evolution reaction (OER). An international team of researchers (Japan, China, Thailand) synthesized and characterized CSO using a solution plasma process. Tests revealed that highly crystalline CSO could be synthesized by adjusting the pH of the precursor solution to more than 10 to 12. The synthesized CSO had a cubic shape, and its size was approximately 100 to 300 nm. The valences of Co and Sn in CSO were divalent and tetravalent, respectively. The catalytic properties were evaluated using an electrochemical method. […]