Hydrogen storage investigation of fixed bed of nano-crystalline Mg-Ni-Cr mixed oxides

Salam, M.A. and Sufian, S. and Murugesan, T. (2013) Hydrogen storage investigation of fixed bed of nano-crystalline Mg-Ni-Cr mixed oxides. Advanced Materials Research, 701. pp. 179-183. ISSN 10226680

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Abstract

Nano-crystalline mixed oxides containing magnesium, nickel and chromium (MNCM) have been synthesized as an adsorbent using coprecipitation method and showed its reversible hydrogen storage capacity at ambient conditions using fixed bed. XRD and ICP-MS analyses ensured the adsorbent's phase and homogeneity. The microstructure of mixed oxide has been investigated using FESEM and BET and TEM technique respectively. The adsorbent consisted of mesoporous surface with a surface area of 254-370 m2gm-1 and SAED pattern showed that the adsorbents are poly-crystalline. The mixed oxides exhibited a 3.2 wt H2 storage capacity and release 57 of adsorbed H2. Adsorption enthalpy (�H) and entropy (�S) change of-27.58 kJ/mol and-70.21 J/mol.K are indicating favorable thermodynamics for reversible hydrogen storage material. © (2013) Trans Tech Publications, Switzerland.

Item Type: Article
Additional Information: cited By 1; Conference of 2013 3rd International Conference on Key Engineering Materials, ICKEM 2013 ; Conference Date: 8 March 2013 Through 9 March 2013; Conference Code:97633
Uncontrolled Keywords: Adsorption enthalpies; Coprecipitation method; Fixed bed; Hydrogen storage capacities; Hydrogen storage materials; Mesoporous surfaces; Mixed oxide; Nanocrystallines, Adsorbents; Hydrogen storage; Inductively coupled plasma mass spectrometry; Nickel; Thermodynamics, Crystalline materials
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 09 Nov 2023 15:51
Last Modified: 09 Nov 2023 15:51
URI: https://khub.utp.edu.my/scholars/id/eprint/3560

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