Effect of Ni, Fe and Fe-Ni alloy catalysts on the synthesis of metal contained carbon nano-onions and studies of their electrochemical hydrogen storage properties

doi:10.1016/S2095-4956(14)60154-6

能源化学(英文) ›› 2014, Vol. 23 ›› Issue (3): 324-330.DOI: 10.1016/S2095-4956(14)60154-6

Effect of Ni, Fe and Fe-Ni alloy catalysts on the synthesis of metal contained carbon nano-onions and studies of their electrochemical hydrogen storage properties

Chenguang Zhang^a, Jiajun Li^a, Chunsheng Shi^a, Chunnian He^a,b, Enzuo Liu^a, Naiqin Zhao^a,b

a. School of Materials Science and Engineering, and Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300072, China;
b. Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, China

收稿日期:2013-12-23 修回日期:2014-03-06 出版日期:2014-05-24 发布日期:2014-05-25
通讯作者: Naiqin Zhao
基金资助:
This work was supported by the National Natural Science Foundation of China (51272173, 51002188), the National Basic Research Program of China (2010CB934703), and Tianjin Municipal Science and Technology Commission (12ZCZDGX00800).

Effect of Ni, Fe and Fe-Ni alloy catalysts on the synthesis of metal contained carbon nano-onions and studies of their electrochemical hydrogen storage properties

Chenguang Zhang^a, Jiajun Li^a, Chunsheng Shi^a, Chunnian He^a,b, Enzuo Liu^a, Naiqin Zhao^a,b

a. School of Materials Science and Engineering, and Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300072, China;
b. Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, China

Received:2013-12-23 Revised:2014-03-06 Online:2014-05-24 Published:2014-05-25
Supported by:
This work was supported by the National Natural Science Foundation of China (51272173, 51002188), the National Basic Research Program of China (2010CB934703), and Tianjin Municipal Science and Technology Commission (12ZCZDGX00800).

摘要/Abstract

摘要： Three types of carbon nano-onions (CNOs) including Ni@CNOs, Fe₃C@CNOs and Fe_0.64Ni_0.36@CNOs nanoparticles have been synthesized by catalytic decomposition of methane at 850 ℃using nickel, iron and iron-nickel alloy catalysts. Comparative and systematic studies have been carried out on the morphology, structural characteristics and graphitic crystallinity of these CNOs products. Furthermore, the electrochemical hydrogen storage properties of three types of CNOs have been investigated. Measurements show that the Ni@CNOs have the highest discharge capacity of 387.2 mAh/g, corresponding to a hydrogen storage of 1.42%. This comparison study shows the advantages of each catalyst in the growth of CNOs, enabling the controllable synthesis and tuning the properties of CNOs by mediating different metals and their alloy for using in the fuel cell system.

关键词: carbon nano-onion, nickel, iron, iron-nickel alloy, electrochemical hydrogen storage property

Abstract: Three types of carbon nano-onions (CNOs) including Ni@CNOs, Fe₃C@CNOs and Fe_0.64Ni_0.36@CNOs nanoparticles have been synthesized by catalytic decomposition of methane at 850 ℃using nickel, iron and iron-nickel alloy catalysts. Comparative and systematic studies have been carried out on the morphology, structural characteristics and graphitic crystallinity of these CNOs products. Furthermore, the electrochemical hydrogen storage properties of three types of CNOs have been investigated. Measurements show that the Ni@CNOs have the highest discharge capacity of 387.2 mAh/g, corresponding to a hydrogen storage of 1.42%. This comparison study shows the advantages of each catalyst in the growth of CNOs, enabling the controllable synthesis and tuning the properties of CNOs by mediating different metals and their alloy for using in the fuel cell system.

Key words: carbon nano-onion, nickel, iron, iron-nickel alloy, electrochemical hydrogen storage property

Chenguang Zhang, Jiajun Li, Chunsheng Shi, Chunnian He, Enzuo Liu, Naiqin Zhao. Effect of Ni, Fe and Fe-Ni alloy catalysts on the synthesis of metal contained carbon nano-onions and studies of their electrochemical hydrogen storage properties[J]. 能源化学(英文), 2014, 23(3): 324-330.

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Effect of Ni, Fe and Fe-Ni alloy catalysts on the synthesis of metal contained carbon nano-onions and studies of their electrochemical hydrogen storage properties

Effect of Ni, Fe and Fe-Ni alloy catalysts on the synthesis of metal contained carbon nano-onions and studies of their electrochemical hydrogen storage properties

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