Ni1-xPtx (x=0-0.12) hollow spheres as catalysts for hydrogen generation from ammonia borane
Ni1-xPtx (x=0-0.12) hollow spheres as catalysts for hydrogen generation from ammonia borane
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Ni1-xPtx (x=0-0.12) 空心球作为氨硼烷制氢催化剂
DOI：
10.1021/ic061712e
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发表时间：
2007-02-05
影响因子：
4.6
通讯作者：
Chen, Jun
中科院分区：
文献类型：
--
作者：
Cheng, Fangyi;Ma, Hua;Chen, Jun
本文采用模板置换法制备了亚微米尺寸的巢状Ni 1-xPtx（x = 0，0.03，0.06，0.09和0.12）空心球，并研究了其作为氨硼烷（NH3 BH 3）制氢催化剂的性能。实验研究表明，所制备的Ni 1-xPtx合金空心球对NH3 BH 3的水解和热分解均具有良好的催化活性。结果发现，在Ni 0.88Pt 0.12催化剂的存在下，NH3 BH 3的水解导致H-2的快速释放，而NH3 BH 3的热分解在较低的温度下发生，质量损失增加。本研究结果表明，NH3 BH 3沿着Ni 1-xPtx合金空心球可用于小规模车载储氢和供氢。
In this paper, nest-like Ni1-xPtx (x = 0, 0.03, 0.06, 0.09, and 0.12) hollow spheres of submicrometer sizes have been prepared through a template-replacement route and investigated as catalysts for generating hydrogen from ammonia borane (NH3BH3). Experimental investigations have demonstrated that the obtained Ni1-xPtx alloy hollow spheres exhibit favorable catalytic activities for both the hydrolysis and the thermolysis of NH3BH3. It was found that, in the presence of the Ni0.88Pt0.12 catalyst, the hydrolysis of NH3BH3 causes a quick release of H-2, while the thermal decomposition of NH3BH3 occurs at lowered temperatures with increased mass loss. The present results indicate that NH3BH3 along with Ni1-xPtx alloy hollow spheres may find some applications for small-scale on-board hydrogen storage and supply.