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首页> 外文期刊>RSC Advances >Enhanced H2 production from dehydrogenation of sodium borohydride over the ternary Co0.97Pt0.03/CeOx nanocomposite grown on CGO catalytic support
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Enhanced H2 production from dehydrogenation of sodium borohydride over the ternary Co0.97Pt0.03/CeOx nanocomposite grown on CGO catalytic support

机译：通过在CGO催化载体上生长的Ternary CO0.97PT0.03 / Ceox纳米复合材料，从硼氢化钠脱氢的增强的H 2生产

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The development of low-cost materials for the 100% dehydrogenation of metal hydrides is highly essential to vitalize the chemical hydride-based hydrogen economy. In this context, the ternary Co–Ce–Pt nanocomposite immobilized on functionalized catalytic support CGO is synthesized by the one step chemical reduction approach and has been directly employed for the ethanolysis of sodium borohydride. The co-operative effect of CGO and the synergy between metallic nanoparticles is investigated to determine the highest rate of hydrogen (H _(2) ) production. The maximum hydrogen generation rate (HGR) of 41.53 L (min g _( M ) ) ~(?1) is achieved with the Co _(0.97) Pt _(0.03) /CeO _( x ) /CGO nanohybrid from the alkaline ethanolysis of sodium borohydride (SB). In addition, the resultant nanohybrid exhibited a relatively low activation energy of 21.42 kJ mol ~(?1) for the ethanolysis of SB. This enhanced catalytic activity may be attributed to the intermetallic charge transport among metallic Pt, Co/Co _(3) O _(4) , and CeO _( x ) counterparts. Moreover, the catalytic support CGO provides mesoporous functionalized surface and its intercalated GO layers promote charge transport. These results indicate that the resultant catalytic system described here for the dehydrogenation of SB can offer a portable and low-cost H _(2) supply for various fuel cell applications.
机译：100％金属氢化物脱氢的低成本材料的开发对于振兴化学氢化物的氢气经济性是非常重要的。在这种情况下，通过一步化学还原方法合成固定在官能化催化载体CGO上的三元CE-CE-PT纳米复合材料，并已直接用于硼氢化钠的乙溶解。研究了CGO的合作效应和金属纳米颗粒之间的协同作用，确定了氢气的最高速率（H _（2））生产。使用来自碱性的Co _（0.97）Pt _（0.03）/ CgO纳米α（0.03）_（x）/ cgo纳米α（0.03）α（0.03）/ cga纳米α（x）/ cga纳米α（x）/ cga纳米α（x）/ cgO硼氢化钠（Sb）的乙醇溶解。此外，所得到的纳米组基表现出21.42kJ摩尔〜（α1）的相对低的活化能量，用于Sb的乙溶解。这种增强的催化活性可以归因于金属Pt，Co / Co _（3）O _（4）和CEO _（X）对应物中的金属间电荷传输。此外，催化载体CGO提供了介孔官能化表面及其嵌入的GO层促进电荷运输。这些结果表明，此处所述用于SB的脱氢的所得催化系统可以为各种燃料电池应用提供便携式和低成本的H _（2）电源。

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