Han, HyukSu Choi, Heechae Mhin, Sungwook Hong, Yu-Rim Kim, Kang Min Kwon, Jiseok Ali, Ghulam Chung, Kyung Yoon Je, Minyeong Umh, Ha Nee Lim, Dong-Ha Davey, Kenneth Qiao, Shi-Zhang Paik, Ungyu Song, Taeseup 2024-01-19T19:31:52Z 2024-01-19T19:31:52Z 2021-09-02 2019-08-01 1754-5692 https://pubs.kist.re.kr/handle/201004/119697 The development of cost-effective and high-performance electrocatalysts for water oxidation has attracted intense research interest. It was reported recently that the interface between the amorphous and crystalline phases plays a significant role in the electrocatalytic activity of transition metal compounds. It was reckoned therefore that an increase in the density of the crystalline-amorphous phase boundary would enhance the electrochemical water oxidation on the catalyst. In this work we develop a new and facile strategy for inducing high density crystalline-amorphous phase boundaries via selective fluorination surface doping. This resulted in excellent characteristics of the engineered material for electrochemical water splitting. An initial computational simulation is carried out to design the crystalline-amorphous phase boundary material and an experimental verification follows for demonstration and optimization of the impact of surface doping. We conclude that the engineering of the interface using this facile and cost-effective strategy maximizes the crystalline and amorphous phases of metal-metalloids, which can be used to fabricate low-cost and efficient electrocatalysts for water oxidation. English Royal Society of Chemistry EFFICIENT HYDROGEN CATALYSTS ELECTROCATALYST TRENDS NICOP Advantageous crystalline-amorphous phase boundary for enhanced electrochemical water oxidation Article 10.1039/c9ee00950g 1 Energy & Environmental Science, v.12, no.8 Energy & Environmental Science 12 8 scie scopus 000479082800023 2-s2.0-85070322665 Chemistry, Multidisciplinary Energy & Fuels Engineering, Chemical Environmental Sciences Chemistry Energy & Fuels Engineering Environmental Sciences & Ecology Article EFFICIENT HYDROGEN CATALYSTS ELECTROCATALYST TRENDS NICOP crystalline-amorphous phase boundary water oxidation