In situ synthesis of biomass-derived Ni/C catalyst by self-reduction for the hydrogenation of levuli

• 作 者: Shuqi Fang Zhibing Cui Yuting Zhu Chenguang Wang Jing Bai Xinghua Zhang Ying Xu Qiying Liu Lungang Chen Qi Zhang Longlong Ma
• 机 构: School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, Henan, China;Key
• 出 处: 能源化学
• 发表日期: 2019年10期
• 关键词: Pomelo peel Ni/C Self-reduction Hydrogenation Levulinic acid γ-Valerolactone

Herein,we reported in situ synthesis of biomass-derived Ni/C catalyst by self-reduction with pomelo peel.Compared with the conventional method,which includes carbonization,activation,impregnation and reduction,the entire preparation process was simplified to two steps,which was more straightforward.This synthesis method was green as Ni/C can be prepared without any additional chemical and the self-reduction process was realized in N2,which can avoid using H2 thus averting some problems such as storage,transportation and safety of H2.Meanwhile,the size and dispersion of Ni particles can be controlled by changing carbonization temperature.The synthesis mechanism of Ni/C catalyst with self-reduction was investigated,which was mainly attributed to the carbon and reducing gas produced during the carbonization process.For the catalytic performance of GVL synthesis,a high yield (94.5％) can be obtained and it exhibited good stability up to 5 cycles without obvious loss of catalytic activity.