Y-Mn-O负载的Ni基催化剂用于乙酸自热重整产氢

Y-Mn-O Supported Ni-Based Catalyst for Hydrogen Production via Auto-thermal Reforming of Acetic Acid

为了有效地从生物质衍生的乙酸中获得高氢气产率,通过水热法合成了一系列的NiMnY催化剂并用于乙酸自热重整(ATR)过程中,并采用X射线衍射(XRD)、N2吸附-脱附测试、H_(2)程序升温还原(H_(2)-TPR)探究催化剂中的内在联系。在Ni_(0.39)Mn_(0.61)YO_(3.11±δ)催化剂中,经焙烧后形成了类钙钛矿型(Ni,Mn)YO3物相;经氢气还原后,转化为含有Mn O、Y_(2)O_(3)和高分散Ni纳米粒子的热稳定的Ni-Mn-Y-O物种。Ni_(0.39)Mn_(0.61)YO_(3.11±δ)具有高效稳定的产氢催化性能,乙酸转化率高达100%,氢气产率达到2.68 mol_(H_(2))·mol_(HAc^(-1))。

To effectively achieve high hydrogen yield from biomass-derived acetic acid(HAc),a series of NiMnY catalysts were prepared by hydrothermal method and tested in auto-thermal reforming(ATR)of HAc.X-ray diffraction(XRD),N2 adsorption-desorption test and H_(2)-temperature-programmed reduction(H_(2)-TPR)were carried out to explore the internal relationship within these NiMnY catalysts.Over the Ni_(0.39)Mn_(0.61)YO_(3.11±δ)catalyst,perovskite-like(Ni,Mn)YO3 phase was formed after calcination,and converted into thermostable Ni-Mn-Y-O species after reduction in H_(2),along with the highly dispersed nickel nanoparticles.As a result,over the promotedNi_(0.39)Mn_(0.61)YO_(3.11±δ)catalyst,a stable catalytic performance with high HAc conversion(100%)and hydrogen yield(2.68 mol_(H_(2))·mol_(HAc^(-1)))was recorded,showing potential for hydrogen production.