Behera, SnehanjaliSnehanjaliBeheraNegi, AkankshaAkankshaNegiJoshi, GayatriGayatriJoshiChauhan, ChetansinhChetansinhChauhanKanthali, Dipak SureshDipak SureshKanthaliKhatua, SaumyakantiSaumyakantiKhatuaMondal, BiswajitBiswajitMondal2025-12-312025-12-312025-12-0110.1039/d5sc04651c2-s2.0-105025246317http://repository.iitgn.ac.in/handle/IITG2025/33740The electrochemical oxidation of lignocellulose and plastic waste has been considered a clean and reliable strategy to produce feedstocks for various chemicals and fuels. In this study, we tackle the challenging selective oxidation of various lignocellulose and mixed biodegradable and bio-nondegradable plastics by targeting the oxidative cleavage of the specific C(OH)–C moiety. A monometallic Ni(O)O–H electrocatalyst was used for valorization of cellulose-based biomass, a series of lignin-based model complexes, lignin-derived secondary alcohols (KA oil), and mixed plastic waste based on the catalyst's O–H bond dissociation free energy. The catalyst performs remarkably well to selectively oxidize cellulose and lignin-based model complexes like HMF and PED with excellent yield at a higher current density of 100 mA cm⁻². Mechanical insights into this reaction were obtained by in situ transmitted light spectroscopy and Raman measurements. The catalyst was also able to oxidize KA oil to adipic acid with 54% yield at a constant current electrolysis of 20 mA cm⁻². Furthermore, plastic waste precursors having a C(OH)–C bond were selectively oxidized using this catalyst, which was further expanded to mixed plastic waste upgradation resulting in the generation of formate and acetate with faradaic efficiencies of 66% and 74%, respectively, and 100% yield in terephthalic acid accompanied by the co-production of hydrogen.trueArticle2041653920250ArticleArticle0WOS:001644405300001