The synthesis of NiO@ N-doped reduced graphene oxide and its application for hydrogen generation

Özgür D.

Bor Dergisi, cilt.6, sa.2, ss.290-297, 2021 (Hakemli Dergi)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 6 Sayı: 2
  • Basım Tarihi: 2021
  • Doi Numarası: 10.30728/boron.840655
  • Dergi Adı: Bor Dergisi
  • Derginin Tarandığı İndeksler: TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.290-297
  • Gazi Üniversitesi Adresli: Evet

Özet

Ammonia borane (AB) is considered a highly promising candidate among chemical hydrogen storage compounds. The improvement of efficient and low-cost catalysts is key to comprehending a highly efficient hydrogen generation reaction. In this study, the synthesis of non-noble nickel oxide was performed on nitrogen-doped graphene (NiO@N-rGO) and its efficiency towards the catalytic dehydrogenation of AB was investigated under mild conditions (25oC-50oC). The synergic effect between NiO and nitrogen-doped rGO has increased the performance of the catalyst. As a result, the turnover frequency (63 mol H2 min−1 (mol Ni) −1 of NiO@N-rGO is higher than most Ni-based catalysts. The activation energy (Ea) measured to be 48.7 kJ mol−1 is among the values of the most active catalysts.