The Effect of Graphite and Fe2O3 Addition on Hydrolysis Kinetics of Mg-Based Hydrogen Storage Materials

The Effect of Graphite and Fe2O3 Addition on Hydrolysis Kinetics of Mg-Based Hydrogen Storage Materials

In this paper, graphite and Fe2O3 are introduced into MgH2 powder by the method of hydrogenation after magnetic grinding. Hydrogen storage materials which composite of MgH2–5 wt.% C and MgH2–5 wt.% C–5 wt.% Fe2O3 are successfully prepared. The physical structure of these materials was analyzed and c...

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Main Authors: Kun Yang, Hongyun Qin, Junnan Lv, Rujun Yu, Xia Chen, Zengdian Zhao, Yongjie Li, Fang Zhang, Xianchang Xia, Qiang Fu, Ming Wang
Format: Article
Language:English
Published: Hindawi Limited 2021-01-01
Series:International Journal of Photoenergy
Online Access:http://dx.doi.org/10.1155/2021/6651541
id doaj-3e896c10446c467993a6240e4ad3639a
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spelling doaj-3e896c10446c467993a6240e4ad3639a2021-03-08T02:00:23ZengHindawi LimitedInternational Journal of Photoenergy1687-529X2021-01-01202110.1155/2021/6651541The Effect of Graphite and Fe2O3 Addition on Hydrolysis Kinetics of Mg-Based Hydrogen Storage MaterialsKun Yang0Hongyun Qin1Junnan Lv2Rujun Yu3Xia Chen4Zengdian Zhao5Yongjie Li6Fang Zhang7Xianchang Xia8Qiang Fu9Ming Wang10School of Chemistry and Chemical EngineeringSchool of Chemistry and Chemical EngineeringSchool of Chemistry and Chemical EngineeringSchool of Chemistry and Chemical EngineeringSchool of Chemistry and Chemical EngineeringSchool of Chemistry and Chemical EngineeringSchool of Chemistry and Chemical EngineeringConsultant BeijingConsultant BeijingSchool of Chemistry and Chemical EngineeringSchool of Chemistry and Chemical EngineeringIn this paper, graphite and Fe2O3 are introduced into MgH2 powder by the method of hydrogenation after magnetic grinding. Hydrogen storage materials which composite of MgH2–5 wt.% C and MgH2–5 wt.% C–5 wt.% Fe2O3 are successfully prepared. The physical structure of these materials was analyzed and characterized by XRD, SEM, etc. Furthermore, the influence of graphite and Fe2O3 on the hydrolysis of MgH2 was systematically investigated. The results show that MgH2–C–Fe2O3 composite powder has the fastest hydrogen release rate in municipal drinking water and the highest conversion rate. Graphite and Fe2O3 can effectively reduce the activation energy of the hydrolysis reaction of MgH2 and improve the hydrolysis kinetics of MgH2. The synergistic effect of the coaddition of graphite and Fe2O3 can significantly increase the hydrolysis conversion rate of MgH2 and improve the hydrolysis kinetics.http://dx.doi.org/10.1155/2021/6651541
collection DOAJ
language English
format Article
sources DOAJ
author Kun Yang
Hongyun Qin
Junnan Lv
Rujun Yu
Xia Chen
Zengdian Zhao
Yongjie Li
Fang Zhang
Xianchang Xia
Qiang Fu
Ming Wang
spellingShingle Kun Yang
Hongyun Qin
Junnan Lv
Rujun Yu
Xia Chen
Zengdian Zhao
Yongjie Li
Fang Zhang
Xianchang Xia
Qiang Fu
Ming Wang
The Effect of Graphite and Fe2O3 Addition on Hydrolysis Kinetics of Mg-Based Hydrogen Storage Materials
International Journal of Photoenergy
author_facet Kun Yang
Hongyun Qin
Junnan Lv
Rujun Yu
Xia Chen
Zengdian Zhao
Yongjie Li
Fang Zhang
Xianchang Xia
Qiang Fu
Ming Wang
author_sort Kun Yang
title The Effect of Graphite and Fe2O3 Addition on Hydrolysis Kinetics of Mg-Based Hydrogen Storage Materials
title_short The Effect of Graphite and Fe2O3 Addition on Hydrolysis Kinetics of Mg-Based Hydrogen Storage Materials
title_full The Effect of Graphite and Fe2O3 Addition on Hydrolysis Kinetics of Mg-Based Hydrogen Storage Materials
title_fullStr The Effect of Graphite and Fe2O3 Addition on Hydrolysis Kinetics of Mg-Based Hydrogen Storage Materials
title_full_unstemmed The Effect of Graphite and Fe2O3 Addition on Hydrolysis Kinetics of Mg-Based Hydrogen Storage Materials
title_sort effect of graphite and fe2o3 addition on hydrolysis kinetics of mg-based hydrogen storage materials
publisher Hindawi Limited
series International Journal of Photoenergy
issn 1687-529X
publishDate 2021-01-01
description In this paper, graphite and Fe2O3 are introduced into MgH2 powder by the method of hydrogenation after magnetic grinding. Hydrogen storage materials which composite of MgH2–5 wt.% C and MgH2–5 wt.% C–5 wt.% Fe2O3 are successfully prepared. The physical structure of these materials was analyzed and characterized by XRD, SEM, etc. Furthermore, the influence of graphite and Fe2O3 on the hydrolysis of MgH2 was systematically investigated. The results show that MgH2–C–Fe2O3 composite powder has the fastest hydrogen release rate in municipal drinking water and the highest conversion rate. Graphite and Fe2O3 can effectively reduce the activation energy of the hydrolysis reaction of MgH2 and improve the hydrolysis kinetics of MgH2. The synergistic effect of the coaddition of graphite and Fe2O3 can significantly increase the hydrolysis conversion rate of MgH2 and improve the hydrolysis kinetics.
url http://dx.doi.org/10.1155/2021/6651541
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