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富炔高分子/纳米钯复合吸氢材料的制备及表征 被引量:1
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作者 常凤雯 黄德顺 +4 位作者 杨晓娇 帅茂兵 赵鹏翔 周元林 魏建宇 《化工新型材料》 CAS CSCD 北大核心 2017年第3期43-45,共3页
以聚乙烯醇(PVA)为基体,分别通过醚化反应和氨基甲酸酯化反应在PVA高分子链上引入炔基形成富炔高分子,用红外、核磁共振法对富炔高分子的分子结构及接枝度进行表征。利用化学还原法制备出富炔高分子负载纳米钯的复合吸氢材料,采用透射电... 以聚乙烯醇(PVA)为基体,分别通过醚化反应和氨基甲酸酯化反应在PVA高分子链上引入炔基形成富炔高分子,用红外、核磁共振法对富炔高分子的分子结构及接枝度进行表征。利用化学还原法制备出富炔高分子负载纳米钯的复合吸氢材料,采用透射电镜(TEM)对复合材料的形貌及微观结构进行表征,确定纳米钯的形貌、粒径分布以及其在富炔高分子基体中的分散情况。结果表明,溴丙炔醚化改性PVA因溶解性问题导致纳米钯分散性不好、团聚现象严重;而炔丙胺氨基甲酸酯化改性PVA负载的纳米钯粒径均一,分散性良好,为下一步吸氢性能的研究打下基础。 展开更多
关键词 聚乙烯醇 纳米 纳米复合吸氢材料
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Hydrogen Adsorption Study upon Ni/AI203 Nano-composite Synthesized by MOCVD Technique
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作者 Hameed Ullah Michael Veith 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2013年第5期580-584,I0004,共6页
The hydrogen adsorption (storage) studies upon Ni/A1203 nano-composite prepared by metal organic chemical vapor deposition technique (MOCVD) exploiting single source molec ular precursor (SSP) approach were carr... The hydrogen adsorption (storage) studies upon Ni/A1203 nano-composite prepared by metal organic chemical vapor deposition technique (MOCVD) exploiting single source molec ular precursor (SSP) approach were carried out. The Ni/A1203 nano-composite is prepared in cold walled MOCVD reactor by the decomposition of SSP, [H2AI(OtBu)]2, on a substrate holding Ni(acac)2 powder. The SSP is a reducing agent which reduces Ni+2 to Ni0 and works as source for Al203 matrix in which the Ni0 is dispersed. The resulting Ni/A1203 nano-composite is characterized by XRD, SEM, TEM, and EDX. The hydrogen adsorption (storage) studies are performed using home-made Sievert's type apparatus. The hydrogen storage studies reveal that approximately 2.9% (mass ratio) hydrogen can be stored in the Ni/A1203 nano-composite. The results show that Ni/A1203 nano-composite can be a po- tential candidate for hydrogen storage which can be used for onboard fuel purposes. 展开更多
关键词 Hydrogen Ni/A1203 NANO-COMPOSITE Metal organic chemical vapor depo-sition technique Adsorption
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