Preparation of nanoporous graphene for hydrogen adsorption

Publish Year: 1395
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

CHCONF02_148

تاریخ نمایه سازی: 9 مرداد 1395

Abstract:

In this study, nanoporous graphene was synthesized to investigate hydrogen adsorption capacity at different pressures (0-34 bar) at room temperature (298 K). Nanoporous graphene was prepared by chemical vapor deposition (CVD) method, using CH4 as a carbon source at a temperature of 900 °C over nickel oxide nanocatalyst. The nickel oxide nanocatalyst was prepared by sol-gel method.The product was characterized by X-ray diffraction (XRD), Raman spectroscopy, field emission-scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), Fourier transform infrared spectra (FT-IR) as well as BET measurement. The adsorption of hydrogen was done by volumetric method. High adsorption capacity (2.56 wt%) was achieved in nanoporous graphene due to its high pore volume (2.11 cm3/g) and large specific surface area (850 m2/g).

Authors

Mahrokh Elyassi

Department of Physics, Science and Research Branch, Islamic Azad University, Tehran, Iran

Alimorad Rashidi

Nanotechnology Research Center, Research Institude of Petroleum Industry (RIPI), Tehran, Iran

Mohammad Reza Hantehzadeh

Department of Physics, Science and Research Branch, Islamic Azad University, Tehran, Iran

Seyed Mohammad Elahi

Department of Physics, Science and Research Branch, Islamic Azad University, Tehran, Iran

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