Hydrogen generation from ethylenediamine bisborane solution with palladium / reduced graphene oxide

Mert Yorgun B. U., ÖZKAN G., ÖZKAN G.

International Journal of Hydrogen Energy, 2025 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1016/j.ijhydene.2025.01.123
  • Dergi Adı: International Journal of Hydrogen Energy
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Environment Index, INSPEC
  • Anahtar Kelimeler: Dehydrogenation, Etylenediamine bisborane, Graphene oxide, Palladium, Reduce graphene oxide
  • Ankara Üniversitesi Adresli: Evet

Özet

In this study, the catalytic hydrolysis of ethylenediamine bisborane (EDAB) is carried out in a batch reactor with Pd/rGO(H) and Pd/rGO(T) catalysts. Initially, graphene oxide (GO) is synthesized by the Hummers and Tour methods. Several reducing agents such as hydrazine monohydrate, sodium borohydride, and L-ascorbic acid are tested and among them, hydrazine monohydrate is selected. Then, Pd/rGO catalysts are prepared employing the hydrothermal method with hydrazine monohydrate reduction. FTIR, SEM-EDX, BET, XPS, TEM and XRD analyses are used to characterization of the catalysts. Pd/rGO(T) catalyst is not show catalytic activity. The EDAB hydrolysis reaction with Pd/rGO(H) catalyst have an activation energy of 22.82 kJ/mol and a reaction rate is determined as a function dependent on variations in EDAB concentration, the catalyst active phase composition, and temperatures and the rate law emerged: rH2 = 4,89x10−3[CEDAB]0.88 [CMetal Loaded]1.9243