کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1271818 | 1497570 | 2011 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: The on demand generation of hydrogen from Co-Ni bimetallic nano catalyst prepared by dual use of hydrogel: As template and as reactor The on demand generation of hydrogen from Co-Ni bimetallic nano catalyst prepared by dual use of hydrogel: As template and as reactor](/preview/png/1271818.png)
We report the preparation of metal nanoparticles in various formulations inside p(2-acrylamido-2-methyl-1-propansulfonic acid; p(AMPS)) hydrogels and their utilization as a catalyst in hydrolysis of NaBH4. The swollen, flexible p(AMPS) network was used for metal ion loading and reduction in situ for the preparation of Co:Ni nanoparticles as bimetallic clusters in various formulation, and Co and Ni bimetallic catalysts as Co + Co, Co + Ni, Ni + Co and Ni + Ni. In addition to utilization of hydrogels as support materials, the p(AMPS)-metal nanoparticle system was used as catalyst to generate hydrogen in the hydrolysis of NaBH4 with very high yield. Various parameters for the hydrolysis reaction were determined and the activation parameters were calculated. For the first time, inclusion of ferrite magnetic particles to control hydrogen generation on demand by using an externally applied magnetic field to remove the hydrogel-catalyst system from the hydrolysis medium is reported.
Figure optionsDownload as PowerPoint slideHighlights
► Hydrogel assisted bimetallic nanoparticle synthesis.
► Hydrogel reactor for controllable hydrogen generation
► Environmentally benignsmart hydrogel composites
► Magnetically active versatile hydrogel soft reactors.
Journal: International Journal of Hydrogen Energy - Volume 36, Issue 23, November 2011, Pages 15250–15258