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Castanea mollissima shell-derived porous carbons as metal-free catalysts for highly efficient dehydrogenation of propane to propylene
Catalysis Today ( IF 5.2 ) Pub Date : 2018-01-09 , DOI: 10.1016/j.cattod.2018.01.010
Zhong-Pan Hu , Hui Zhao , Chong Chen , Zhong-Yong Yuan

Porous carbons derived from castanea mollissima shell are prepared by a simple alkali activation method, and employed as metal-free catalysts for catalytic dehydrogenation of propane to propylene, exhibiting high catalytic performance. The chemical compositions and structural properties of the obtained carbon catalysts are characterized by XRD, SEM, TEM, XPS, TG, He-TPD, Raman spectroscopy and nitrogen sorption techniques, revealing the presence of rich micro-/meso-/macropores and numerous oxygenated functional groups. The catalytic results suggest that the porous carbons obtained by activation of castanea mollissima shell with KOH at 700 °C exhibit the best catalytic performance. And the porous structure with high surface area and abundant oxygen-containing groups of the carbon catalysts are responsible for the high catalytic performance. This catalyst is derived from biomass, has much low cost, and can be widely used in various reactions including propane dehydrogenation.



中文翻译:

板栗壳壳多孔碳作为无金属催化剂,可用于丙烷高效脱氢为丙烯

通过简单的碱活化方法制备了从板栗壳衍生的多孔碳,并将其用作丙烷催化脱氢为丙烯的无金属催化剂,具有较高的催化性能。通过XRD,SEM,TEM,XPS,TG,He-TPD,拉曼光谱和氮吸附技术对所得碳催化剂的化学组成和结构性质进行了表征,揭示了存在丰富的微孔/中孔/大孔以及大量的氧合功能组。催化结果表明,在700°C下用KOH活化板栗壳得到的多孔碳表现出最佳的催化性能。碳催化剂的高表面积和丰富的含氧基团的多孔结构是其高催化性能的原因。

更新日期:2018-01-09
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