Woo, Jongin Choi, Jinu Choi, Juhyung Lee, Mi-Young Kim, Eunji Yun, Sang Yoo, Suhwan Lee, Eunchong Lee, Ung Won, Da Hye Park, Jong Hyeok Hwang, Yun Jeong Yoo, Jong Suk Lee, Dong Ki 2024-09-06T06:00:16Z 2024-09-06T06:00:16Z 2024-09-05 2025-01 1616-301X https://pubs.kist.re.kr/handle/201004/150551 Ni phosphides and NiCo alloys are extensively explored for their remarkable efficiency in biomass alcohol oxidations, yet the underlying mechanisms remain inadequately understood. This study thoroughly elucidates the roles of Ni, Co, and P in improving the catalytic performance of Ni-Co-P catalysts for the electrochemical conversion of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA), a promising biomass-derived building block replacing terephthalic acid. Phosphorization of Ni results in the partial formation of Ni2P phase and significantly boosts the formation of the reactive NiOOH phase on the surface, which is the crucial catalytic phase for converting HMF into FDCA. The integration of Co into the heterojunction between Ni2P and NiOOH enhances the oxidation reactivity of 5-formyl-2-furancarboxylic acid (FFCA), a pivotal intermediate influencing FDCA productivity, by selectively stabilizing aldehydes, thereby promoting further oxidation rather than surface desorption. in situ/operando spectroscopic analyses consistently highlight the equal significance of the rapid generation of NiOOH and the robust adsorption of reactant molecules at the surface in achieving high catalytic performance. These insights into elemental contributions set a new standard for designing multi-component electrocatalysts for efficient biomass alcohol oxidation. English John Wiley & Sons Ltd. Mechanistic Insights into the Role of Elements in Ni-Co-P Catalysts for Electrochemical Conversion of 5-Hydroxymethylfurfural to 2,5-Furandicarboxylic Acid Article 10.1002/adfm.202413951 1 Advanced Functional Materials, v.35, no.4 Advanced Functional Materials 35 4 Y scie scopus 001299682300001 2-s2.0-85202503925 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article HYDROGEN EVOLUTION BIOMASS OXIDATION ELECTROCATALYSIS WATER electrocatalysts nickel phosphides 5-hydroxymethylfurfural (HMF) 2,5-furandicarboxylic acid (FDCA) biomass alcohol oxidations