| Studies on a New Material for Hydrogen Storage and Supply by Modified Fe and Fe2O3 Powder |
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| 引用本文： | 王惠 王宪生 王新智 王小芳 董发昕 史启祯. Studies on a New Material for Hydrogen Storage and Supply by Modified Fe and Fe2O3 Powder[J]. 中国化学, 2007, 25(7): 883-887. DOI: 10.1002/cjoc.200790171 |
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| 作者姓名： | 王惠 王宪生 王新智 王小芳 董发昕 史启祯 |
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| 作者单位： | [1]Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Department of Chemistry, Northwest University, Xi＇an, Shaanxi 710069, China [2]State Key Laboratory of Continental Dynamics, Northwest University, Xi＇an, Shaanxi 710069, China [3]Department of Chemistry, Shaanxi Shangluo Normal University, Shangluo, Shaanxi 726000, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China （No. 20673082）, the Scientific Research Foundation for the Returned 0verseas Chinese Scholars, State Education Ministry （No. 2006331）, the Key Project of Science and Technology of Shaanxi Province （No. 2005k07-G2）, and the Natural Science Foundation of Shaanxi Education Committee （No. 06JK167）. |
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| 摘 要： | Modified iron oxide, a new material for hydrogen storage and supply to polymer electrolyte fuel cell （PEFC）, was prepared by impregnating Fe or Fe2O3 powder with an aqueous solution containing metal cation additives （Al, Cr, Ni, Co, Zr and Mo）. Hydrogen storage properties of the samples were investigated. The results show that both Fe and Fe2O3 powder with additive Mo presented excellent catalytic activity and cyclic stability, and their hydrogen producing temperature could be surprisingly decreased. The temperature of forming hydrogen for the Fe2O3-Mo at the rate of 250 μmol·min^-1·Fe-g^-1 could be dramatically decreased from 527 ℃ before addition of Mo to 283 ℃ after addition of Mo in the fourth cycle. The cause for it was probably related to preventing the sinter of the sample particles. In addition, hydrogen storage capacity of the Fe2O3-Mo can reach w=4.5% （72 kg H2/m^3）, close to International Energy Agency （IEA） criterion. These show the value of practical application of the Fe2O3-Mo as the promising hydrogen storage material.
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| 关 键 词： | 改良铁 粉末 氢储存材料 金属添加物 |
| 修稿时间： | 2006-12-312007-05-16 |
Studies on a New Material for Hydrogen Storage and Supply by Modified Fe and Fe2O3 Powder |
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| WANG Hui, WANG Xian-Sheng, WANG Xin-Zhi, WANG Xiao-Fang, DONG Fa-Xin, SHI Qi-Zhena. Studies on a New Material for Hydrogen Storage and Supply by Modified Fe and Fe2O3 Powder[J]. Chinese Journal of Chemistry, 2007, 25(7): 883-887. DOI: 10.1002/cjoc.200790171 |
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| Authors: | WANG Hui WANG Xian-Sheng WANG Xin-Zhi WANG Xiao-Fang DONG Fa-Xin SHI Qi-Zhena |
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| Affiliation: | [1]Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Department of Chemistry, Northwest University, Xi'an, Shaanxi 710069, China; [2]State Key Laboratory of Continental Dynamics, Northwest University, Xi'an, Shaanxi 710069, China; [3]Department of Chemistry, Shaanxi Shangluo Normal University, Shangluo, Shaanxi 726000, China |
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| Abstract: | Modified iron oxide, a new material for hydrogen storage and supply to polymer electrolyte fuel cell (PEFC), was prepared by impregnating Fe or Fe2O3 powder with an aqueous solution containing metal cation additives (Al, Cr, Ni, Co, Zr and Mo). Hydrogen storage properties of the samples were investigated. The results show that both Fe and Fe2O3 powder with additive Mo presented excellent catalytic activity and cyclic stability, and their hydrogen producing temperature could be surprisingly decreased. The temperature of forming hydrogen for the Fe2O3‐Mo at the rate of 250 µmol·min?1·Fe‐g?1 could be dramatically decreased from 527 °C before addition of Mo to 283 °C after addition of Mo in the fourth cycle. The cause for it was probably related to preventing the sinter of the sample particles. In addition, hydrogen storage capacity of the Fe2O3‐Mo can reach w=4.5% (72 kg H2/m3), close to International Energy Agency (IEA) criterion. These show the value of practical application of the Fe2O3‐Mo as the promising hydrogen storage material. |
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| Keywords: | modified Fe and Fe2O3 powder material for hydrogen storage metal additive performance of hydrogen storage catalytic activity and cyclic stability |
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