摘要
Dry reforming of CH 4 with CO 2 is an effective way to convert these two greenhouse gases into useful industrial feedstock . Here, we designed and developed Ni@Y 2 O 3 nanofibers catalyst by pyrolyzing sheet-like Ni 2 (CO 3 ) (OH) 2 grown in situ on the surface of Y 2 O 3 nanofibers. Y 2 O 3 nanofibers support can not only promote the contact of the reaction gas with the catalyst due to its self-supporting effect, but also improve the ability to capture CO 2 because of its basic oxide properties. Meanwhile, the oxygen exchange between the catalyst and CO 2 could promote the oxidation of carbon deposits , and further improve activity and stability of the catalyst. Besides, the catalyst obtained by low-temperature pyrolysis could maintain the sheet-structure of nickel on the surface of support, which is conducive to improve its catalytic activity , stability, and resistance to carbon deposition . This work has a positive effect on improving the design of catalysts as well as producing industrial chemicals and reducing the environmental pollution.
危险品化学品经营许可证(带存储)