Silica-based monodisperse PdCo nanohybrids as highly efficient and stable nanocatalyst for hydrogen evolution reaction


Şen B., Demirkan B., LEVENT M., Şavk A., Şen F.

International Journal of Hydrogen Energy, cilt.43, sa.44, ss.20234-20242, 2018 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 43 Sayı: 44
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1016/j.ijhydene.2018.07.080
  • Dergi Adı: International Journal of Hydrogen Energy
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.20234-20242
  • Anahtar Kelimeler: Dehydrocoupling, Hydrogen, Nanohybrids, PdCo NPs, Silica
  • Uşak Üniversitesi Adresli: Evet

Özet

Addressed herein, a highly active and stable nanohybrid has been synthesized for hydrogen production. The newly prepared nanocatalysts are silica-based palladium-cobalt nanohybrid structures (PdCo@SiO2 nanohybrid) (3.82 ± 0.37 nm). The prepared nanohybrids were fully identified with the help of different analytical techniques such as UV-Vis (Ultraviolet-Visible spectroscopy), XPS (X-ray photoelectron spectroscopy), TEM (Transmission electron microscopy), XRD (X-ray diffraction) and HR-TEM (High-resolution transmission electron microscopy) analyses. This prepared nanohybrid was quite successful in the production of hydrogen from DMAB in ambient conditions (TOF: 108.27 h−1). By the way, it was observed that the DMAB was converted entirely to the product at room temperature with the help of PdCo@SiO2 nanohybrid. Moreover, monodisperse PdCo@SiO2 nanohybrid has shown outstanding reusability performance even after 4th usage in the same reaction. As a result, it can be said that the prepared nanohybrid is highly efficient, stable and durable nanocatalyst for the dehydrocoupling of dimethylamine-borane.