کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5355333 | 1503578 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Surface chemistry and catalytic performance of amorphous NiB/Hβ catalyst for n-hexane isomerization
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Surface chemistry and catalytic performance of amorphous NiB/Hβ catalyst for n-hexane isomerization Surface chemistry and catalytic performance of amorphous NiB/Hβ catalyst for n-hexane isomerization](/preview/png/5355333.png)
چکیده انگلیسی
The amorphous NiB nanoparticles were synthesized and a novel type of NiB/Hβ catalyst was prepared for the isomerization of n-hexane. The optimum preparation conditions were investigated and the effect of preparation conditions on the surface chemistry information of catalysts was characterized by XRD, N2 sorption studies, XPS, TPD and other related means. It was demonstrated that the loading amounts of NiB have effect on textural properties and the acid properties of surface. The loading amounts of NiB were also related to the amount of strong Lewis acid sites and the ratios of weak acid to strong acid of samples. Meanwhile, calcination temperatures of samples were closely associated with the structure of active components that function as metal centers. When the loading amount of NiB was 5 wt.% and calcination temperature was 200 °C, the catalyst had proper surface acidity sites and metal active sites to provide suitable synergistic effects. The mechanism for n-hexane isomerization was also investigated and the existence of unique structure of BNiH was proved, which could provide good hydrogenation-dehydrogenation functions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 390, 30 December 2016, Pages 157-166
Journal: Applied Surface Science - Volume 390, 30 December 2016, Pages 157-166
نویسندگان
Jinshe Chen, Tingting Cai, Xiaohui Jing, Lijun Zhu, Yulu Zhou, Yuzhi Xiang, Daohong Xia,