Reduced graphene oxide assembled Pd-based nanoalloys for hydrogen evolution reaction

Cardoso, J. A. S. B.; Amaral, L.; Metin, O.; Cardoso, D. S. P.; Sevim Bayrak, Melike; SENER, T.; Sequeira, C. A. C.; Santos, D. M. F.

doi:10.1016/j.ijhydene.2016.11.100

Makale Tam Makale Uluslararası 2017

Reduced graphene oxide assembled Pd-based nanoalloys for hydrogen evolution reaction

J. A. S. B. Cardoso, L. Amaral, O. Metin, D. S. P. Cardoso, Melike Sevim Bayrak, T. SENER, C. A. C. Sequeira, D. M. F. Santos

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY Cilt 42 · Sayı 7 · ss. 3916–3925 · 16.02.2017

DOI ile aç

Özet

Developing novel and efficient electrocatalysts is vital to overcome most of the technical and economic issues associated with the hydrogen production via water electrolysis. Herein, Pd-based alloy nanoparticles, namely AuPd and FePd, assembled on reduced graphene oxide (rGO) are investigated as cathode electrocatalysts for hydrogen evolution reaction (HER) in alkaline water electrolysis. TEM, HR-TEM, XRD and ICP-MS are used to carry out the structural and morphological characterisation of the as -prepared rGO-AuPd and rGO-FePd nanocomposites and their electrocatalytic activity and stability is studied by voltammetry and chronoamperometry measurements. rGO-AuPd and rGO-FePd show HER onset overpotentials of 80 and 140 mV, respectively. A Tafel slope of 149 mV dec(-1) is evaluated for rGO-AuPd at 25 degrees C, while rGO-FePd has worse performance. It is shown that rGO-AuPd nanocomposites are good candidates for application as novel electrocatalysts for the HER in alkaline media. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

Anahtar kelimeler

NANOCOMPOSITE Catalytic activity Reduced graphene oxide PALLADIUM NANOPARTICLES ALLOY NANOPARTICLES hydrogen evolution reaction Oxygen reduction reaction EFFICIENT ELECTROCATALYST ELECTROCATALYTIC ACTIVITY FORMIC-ACID alkaline water electrolysis Bimetallic alloys ETHANOL OXIDATION BINDING-ENERGY

Sürdürülebilir Kalkınma Amaçları

SKA 7: Erişilebilir ve Temiz Enerji
SKA 8: İnsana Yakışır İş ve Ekonomik Büyüme

Atıf için künye

Cardoso, J. A. S. B., Amaral, L., Metin, O., Cardoso, D. S. P., Sevim Bayrak, M., SENER, T., Sequeira, C. A. C., & Santos, D. M. F. (2017). Reduced graphene oxide assembled Pd-based nanoalloys for hydrogen evolution reaction. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 42(7), 3916–3925. https://doi.org/10.1016/j.ijhydene.2016.11.100

BibTeX

@article{cardoso2017-56572,
  author = {Cardoso, J. A. S. B. and Amaral, L. and Metin, O. and Cardoso, D. S. P. and Sevim Bayrak, Melike and SENER, T. and Sequeira, C. A. C. and Santos, D. M. F.},
  title = {Reduced graphene oxide assembled Pd-based nanoalloys for hydrogen evolution reaction},
  journal = {INTERNATIONAL JOURNAL OF HYDROGEN ENERGY},
  year = {2017},
  volume = {42},
  number = {7},
  pages = {3916--3925},
  issn = {0360-3199},
  doi = {10.1016/j.ijhydene.2016.11.100},
  url = {https://akademik.atauni.edu.tr/yayinlar/56572-reduced-graphene-oxide-assembled-pd-based-nanoalloys-for-hydrogen-evolution}
}