Hydrolysis of ammonia borane and hydrazine borane by poly(N-vinyl-2-pyrrolidone)-stabilized CoPd nanoparticles for chemical hydrogen storage

Rakap M., Abay B., Tunc N.

TURKISH JOURNAL OF CHEMISTRY, cilt.41, sa.2, ss.221-232, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 41 Sayı: 2
  • Basım Tarihi: 2017
  • Doi Numarası: 10.3906/kim-1604-44
  • Dergi Adı: TURKISH JOURNAL OF CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.221-232
  • Anahtar Kelimeler: Cobalt, palladium, ammonia borane, hydrazine borane, hydrolysis, HIGHLY EFFICIENT CATALYSTS, COST-EFFECTIVE CATALYST, REDUCED GRAPHENE OXIDE, ALLOY NANOPARTICLES, ROOM-TEMPERATURE, PALLADIUM NANOPARTICLES, RHNI NANOPARTICLES, GENERATION, DEHYDROGENATION, NICKEL
  • Van Yüzüncü Yıl Üniversitesi Adresli: Evet

Özet

For the first time the synthesis of poly(N-vinyl-2-pyrrolidone)-stabilized cobalt-palladium nanoparticles by an easy method, their characterization, and their use as active catalysts for hydrogen release from hydrolysis of ammonia borane and hydrazine borane is reported here. The catalyst is prepared by simultaneous reduction of suitable cobalt and palladium ions by sodium borohydride in the presence of poly(N-vinyl-2-pyrrolidone) as a stabilizer. They are characterized by UV-Vis spectroscopy, TEM analysis, X-ray diffraction, and X-ray photoelectron spectroscopy. They provide average turnover frequencies of 30 min(-1) and 45 min(-1) in the hydrolysis of ammonia borane and hydrazine borane. They also provide activation energies of 48.6 +/- 2 and 50.6 +/- 2 kJ mol(-1) in the hydrolysis of ammonia borane and hydrazine borane.