Effect of the acid type on clinoptilolite-rich tuff for hydrogen storage

Erdogan B., DİKMEN G.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, cilt.45, sa.3, ss.2017-2021, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 45 Sayı: 3
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1016/j.ijhydene.2019.10.212
  • Dergi Adı: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chimica, Communication Abstracts, Compendex, Environment Index, INSPEC
  • Sayfa Sayıları: ss.2017-2021
  • Anahtar Kelimeler: Adsorption, Clinoptilolite, Hydrogen, XRD, XRF, ADSORPTION BEHAVIOR, ZEOLITE, THERMODYNAMICS, MORDENITE, DEUTERIUM, RECOVERY, ISOTOPES
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

Clinoptilolite from Gordes (Turkey) was treated with HCl, HNO3 and H2SO4 solutions of varying concentrations (from 2.0 M to 6.0 M) at 90 degrees C for 4 h to evaluate its potential for possible applications in hydrogen storage. X-ray diffraction, X-ray fluorescence and nitrogen adsorption techniques were applied for characterization of the zeolites. Hydrogen adsorption capacities of clinoptilolite samples were found in the range between 1.609 and 2.391 mmol/g. The effects of the acid modification process on the structure and hence hydrogen adsorption was evaluated according to the obtained results. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.