文献类型：期刊文献

英文题名：Amorphous-nanocrystalline PdCuFe electrocatalyst enabling efficient ethylene glycol oxidation across a broad potential window

作者：Hao, Ran[1] Xu, Baoti[1] Jin, Can[1] Liu, Guifeng[1] Yang, Zhaozhe[1] Chen, Zupeng[2] Wang, Kui[1]

第一作者：Hao, Ran

通信作者：Jin, C[1];Wang, K[1];Chen, ZP[2]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Natl Engn Res Ctr Low Carbon Proc & Utilizat Fores, Natl Forestry & Grassland Adm,Key Lab Chem Engn Fo, Nanjing 210042, Peoples R China;[2]Nanjing Forestry Univ, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Int Innovat Ctr Forest Chem & Mat, Longpan Rd 159, Nanjing 210037, Peoples R China

年份：2026

卷号：529

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20260319912743);Scopus(收录号：2-s2.0-105027338989);WOS:【SCI-EXPANDED(收录号:WOS:001672475400001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (32501598, 32471983) .

语种：英文

外文关键词：Alcohol oxidation; Polyethylene terephthalate upcycling; Electrocatalysis; Bifunctional catalysts; Amorphous-nanocrystalline alloy

摘要：Electrocatalytic upcycling of polyethylene terephthalate (PET) to glycolic acid via its hydrolysis product, ethylene glycol (EG), offers a sustainable strategy, but is often constrained by narrow potential windows and limited selectivity. Herein, we report a pulse electrodeposited amorphous-nanocrystalline PdCuFe alloy on nickel foam (PdCuFe/NF), which exhibits excellent EG oxidation performance, featuring an onset potential of 0.33 V vs. RHE and maintaining over 90% Faradaic efficiency across a potential window from 0.5 to 1.6 V vs. RHE, notably broader than most reported EG oxidation catalysts. Experimental and theoretical results reveal that the crystalline phase effectively adsorbs EG and OH-, facilitating rapid dehydrogenation at low potentials. Meanwhile, the amorphous phase moderately adsorbs intermediates, stabilizing them and preventing over-oxidation and C-C cleavage at high potentials, thus balancing activity and selectivity across a broad potential range. In addition, PdCuFe/NF also exhibits superior performance in the nitrate reduction reaction, achieving over 90% NH3 Faradaic efficiency between-0.3 and-0.6 V vs. RHE, enabling an efficient coupled EG oxidation and nitrate reduction system. This work highlights the crucial role of amorphous-nanocrystalline structures in enhancing EG oxidation and provides valuable insights for the design of versatile, high-performance electrocatalysts.