Improving the electrochemical oxidation of formic acid by tuning the electronic properties of Pd-based bimetallic nanoparticles

التفاصيل البيبلوغرافية
العنوان: Improving the electrochemical oxidation of formic acid by tuning the electronic properties of Pd-based bimetallic nanoparticles
المؤلفون: Louis Scudiero, Su Ha, Mina Jeon, Bita Khorasani, Jean-Sabin McEwen, Chang Won Yoon, Fanglin Che, Shuozhen Hu
المصدر: Applied Catalysis B: Environmental. 254:685-692
بيانات النشر: Elsevier BV, 2019.
سنة النشر: 2019
مصطلحات موضوعية: Materials science, Formic acid, Process Chemistry and Technology, Nanoparticle, Electrochemistry, Catalysis, Formic acid oxidation, chemistry.chemical_compound, chemistry, Chemical engineering, Electronic effect, Bimetallic strip, General Environmental Science, Electronic properties
الوصف: Pd-based bimetallic nanoparticles have superior electrochemical activity and stability for formic acid oxidation (FAO) than pure Pd. Previous DFT-based calculations show that the catalytic properties of the Pd surface could be altered by modifying its electronic properties. However, only a few experimental studies investigate how the electronic properties of Pd are modified by introducing various metals and how the resulting electronic perturbation affects its electrochemical activity and stability for FAO. Here, we demonstrate a correlation between electrochemistry and electronic properties for Pd-M bimetallic nanoparticles (M = Ru, Pt, Cu, Au, and Ag). The volcano shape relationship obtained between activity and d-band center values suggests that the electronic effects play a major role in modifying the surface electrochemical properties of Pd-M bimetallic nanoparticles for FAO. Among all the bimetallic catalysts investigated in this study, Pd-Pt/C and Pd-Cu/C with d-band center values of 2.58 eV and 2.85 eV, respectively, demonstrate the highest activities and Pd-Cu/C exhibits the highest stability for FAO.
تدمد: 0926-3373
DOI: 10.1016/j.apcatb.2019.03.072
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::1cb2c5d9cbd75001a7495f6d85e5df1a
https://doi.org/10.1016/j.apcatb.2019.03.072
Rights: OPEN
رقم الانضمام: edsair.doi...........1cb2c5d9cbd75001a7495f6d85e5df1a
قاعدة البيانات: OpenAIRE
الوصف
تدمد:09263373
DOI:10.1016/j.apcatb.2019.03.072