کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5147194 | 1497383 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Beneficial cooperative effect between Pd nanoparticles and ZIF-8 material for hydrogen storage
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Beneficial cooperative effect between Pd nanoparticles and ZIF-8 material for hydrogen storage Beneficial cooperative effect between Pd nanoparticles and ZIF-8 material for hydrogen storage](/preview/png/5147194.png)
چکیده انگلیسی
One of the most interesting strategies for improving hydrogen storage capacity at room temperature in porous solids is the inclusion of catalytically-active metal nanoparticles to provide the spillover effect in MOF materials. However, there is a great controversy in the adsorption literature about this topic due to the low reproducibility of results and the lack of knowledge about this mechanism. In the present work, 5-9Â nm Pd nanoparticles were homogeneously dispersed in a ZIF-8 material by a simultaneous liquid impregnation and chemical reduction with hydrazine. After verifying the structural and textural properties, the so obtained Pd/ZIF-8 material was tested in H2 and D2 adsorption-desorption analysis in order to determine its final hydrogen adsorption properties as well as to understand the involved mechanism in the hydrogen retention over the sample. Pd/ZIF-8 material showed a completely reversible hydrogen storage capacity at room temperature 30% higher than that of the pristine ZIF-8, being only 3% related to PdH0.18 formation. These results provide a better knowledge of the hydrogen retention mechanism by spillover in Pd-doped MOF materials, being useful in the designing of new materials for hydrogen storage at room temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 42, 9 November 2016, Pages 19439-19446
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 42, 9 November 2016, Pages 19439-19446
نویسندگان
Jose A. Villajos, Gisela Orcajo, Guillermo Calleja, Juan Angel Botas, Carmen Martos,