Effect of thermal induction temperature on re-dispersion behavior of Ni nanoparticles over Ni/SBA-15 for dry reforming of methane
Effect of thermal induction temperature on re-dispersion behavior of Ni nanoparticles over Ni/SBA-15 for dry reforming of methane
复制标题
热感应温度对甲烷干重整用 Ni 纳米颗粒在 Ni/SBA-15 上再分散行为的影响
DOI：
10.1016/j.apsusc.2018.10.222
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发表时间：
2019-03
影响因子：
6.7
通讯作者：
Lin Qiang
中科院分区：
文献类型：
--
作者：
Zhang Qiulin;Sun Menghan;Ning Ping;Long Kaixian;Wang Jing;Tang Tong;Fan Jie;Sun Haiyang;Yin Liangtao;Lin Qiang
In the previous research, we found that thermal treatment at high temperature could induce the re-dispersion of Ni particles on SBA-15 for dry reforming of methane(DRM). Here, we aimed to study the re-dispersion behavior of Ni particles of Ni/SBA-15 at different temperatures. The results indicated that the mean Ni particle size of Ni/SBA-15 catalysts were 16.9 nm, 14.5 nm, 7.1 nm and 18.4 nm after thermal treatment at 700 °C, 800 °C, 900 °C and 1000 °C, respectively. It could be seen the optimal inducing temperature of Ni/SBA-15 was at 900 °C. The relatively lower inducing temperature did not drive the re-dispersion of Ni particles sufficiently, while the large Ni particles were formed by re-aggregation of re-dispersive Ni species at relatively higher inducing temperature. After 34 h DRM reaction, encapsulated carbon was formed over the catalyst induced by low temperature and the catalytic performance decreased. However, a slight amorphous carbon was discovered over the catalyst induced at 900 °C with highly dispersion. Interestingly, in spite of a large amount of carbon deposition, the 1000Ni/SBA-15 still maintained excellent catalytic activity.
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影响因子：
2.6
作者：
Lin Li;Luming Zhang;Xiaofeng Shi;Yuhua Zhang;Jinlin Li
通讯作者：
Lin Li;Luming Zhang;Xiaofeng Shi;Yuhua Zhang;Jinlin Li
纳米结构 Ni/Al2O3 催化剂上甲烷的二氧化碳重整
影响因子：
3.7
作者：
Sun Jinwei;Wang Sun;Guo Yu;Li Mengzhu;Zou Haikui;Wang Zhou-jun
通讯作者：
Wang Zhou-jun
影响因子：
12.9
作者：
Gould, Troy D.;Izar, Alan;Medlin, J. Will
通讯作者：
Medlin, J. Will
影响因子：
7.4
作者：
Nie, Wangxin;Zou, Xiujing;Lu, Xionggang
通讯作者：
Lu, Xionggang
影响因子：
3.7
作者：
Chen, Chenju;Wang, Xueguang;Lu, Xionggang
通讯作者：
Lu, Xionggang