Modified kenaf via nickel nitrate for hydrogen gas storage

Hydrogen is one of the renewable energy sources that are viable as an alternative fuel source. Hydrogen fuel offers protection towards the environment. Hence, hydrogen storage is a necessity in order for hydrogen fuels can be used for mobile purposes. However, one of the major barrier for hydrogen f...

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Main Author:	Jais, Nur Farahhin
Format:	Thesis
Language:	English
Published:	2017
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/81493/1/NurFarahhinJaisMFChE2017.pdf
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spelling	my-utm-ep.814932019-08-23T05:19:10Z Modified kenaf via nickel nitrate for hydrogen gas storage 2017 Jais, Nur Farahhin TP Chemical technology Hydrogen is one of the renewable energy sources that are viable as an alternative fuel source. Hydrogen fuel offers protection towards the environment. Hence, hydrogen storage is a necessity in order for hydrogen fuels can be used for mobile purposes. However, one of the major barrier for hydrogen fuels is the storage technique. To prevent high pressure problem during storing, kenaf as adsorptive hydrogen storage was introduced in this study. Since kenaf is a natural adsorbent with porous structure, modification with nickel metal for hydrogen adsorption process was conducted. The objectives of the study were to characterize kenaf and modified kenaf as adsorbents, to assess adsorptive capacity of the adsorbents and to assess delivery performance of the adsorptive gas storage. In this study, nickel nitrate (Ni(NO3)2) was used to modify kenaf using nickel metal deposition method. The concentration of Ni(NO3)2 was varied for each sample to determine the suitable amount of modifier for the kenaf sample. The pressure applied during the experiment was also varied in order to observe the delivery performance of the hydrogen adsorption. The physisorption occurred between hydrogen molecules and kenaf samples showed that modified kenaf was capable to adsorb more hydrogen as the hydrogen molecules was trapped within metal surface and kenaf surface itself. From this study, kenaf with 0.4 M of nickel (Ken-0.4MNi) showed better result in adsorbing hydrogen compared to raw kenaf sample. The specific area measurement for this sample was 1.315 m2/g as it was a combination of mesoporous and macroporous structures. The field scanning electron microscopy micrograph of Ken-0.4MNi showed convincing surface structure for hydrogen molecules that had been adsorbed and stored since 0.4 M N-metal added improved the molecules arrangement in adsorbent. Based on the findings, Ken-0.4MNi could adsorbed 15.0 mmol/g hydrogen at pressure of 4 bar. 2017 Thesis http://eprints.utm.my/id/eprint/81493/ http://eprints.utm.my/id/eprint/81493/1/NurFarahhinJaisMFChE2017.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:119443 masters Universiti Teknologi Malaysia Chemical and Energy Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Jais, Nur Farahhin Modified kenaf via nickel nitrate for hydrogen gas storage
description	Hydrogen is one of the renewable energy sources that are viable as an alternative fuel source. Hydrogen fuel offers protection towards the environment. Hence, hydrogen storage is a necessity in order for hydrogen fuels can be used for mobile purposes. However, one of the major barrier for hydrogen fuels is the storage technique. To prevent high pressure problem during storing, kenaf as adsorptive hydrogen storage was introduced in this study. Since kenaf is a natural adsorbent with porous structure, modification with nickel metal for hydrogen adsorption process was conducted. The objectives of the study were to characterize kenaf and modified kenaf as adsorbents, to assess adsorptive capacity of the adsorbents and to assess delivery performance of the adsorptive gas storage. In this study, nickel nitrate (Ni(NO3)2) was used to modify kenaf using nickel metal deposition method. The concentration of Ni(NO3)2 was varied for each sample to determine the suitable amount of modifier for the kenaf sample. The pressure applied during the experiment was also varied in order to observe the delivery performance of the hydrogen adsorption. The physisorption occurred between hydrogen molecules and kenaf samples showed that modified kenaf was capable to adsorb more hydrogen as the hydrogen molecules was trapped within metal surface and kenaf surface itself. From this study, kenaf with 0.4 M of nickel (Ken-0.4MNi) showed better result in adsorbing hydrogen compared to raw kenaf sample. The specific area measurement for this sample was 1.315 m2/g as it was a combination of mesoporous and macroporous structures. The field scanning electron microscopy micrograph of Ken-0.4MNi showed convincing surface structure for hydrogen molecules that had been adsorbed and stored since 0.4 M N-metal added improved the molecules arrangement in adsorbent. Based on the findings, Ken-0.4MNi could adsorbed 15.0 mmol/g hydrogen at pressure of 4 bar.
format	Thesis
qualification_level	Master's degree
author	Jais, Nur Farahhin
author_facet	Jais, Nur Farahhin
author_sort	Jais, Nur Farahhin
title	Modified kenaf via nickel nitrate for hydrogen gas storage
title_short	Modified kenaf via nickel nitrate for hydrogen gas storage
title_full	Modified kenaf via nickel nitrate for hydrogen gas storage
title_fullStr	Modified kenaf via nickel nitrate for hydrogen gas storage
title_full_unstemmed	Modified kenaf via nickel nitrate for hydrogen gas storage
title_sort	modified kenaf via nickel nitrate for hydrogen gas storage
granting_institution	Universiti Teknologi Malaysia
granting_department	Chemical and Energy Engineering
publishDate	2017
url	http://eprints.utm.my/id/eprint/81493/1/NurFarahhinJaisMFChE2017.pdf
_version_	1747818343619887104

Modified kenaf via nickel nitrate for hydrogen gas storage

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