用于常规和感应加热下 CO 甲烷化的空间形成的坚韧镍负载双金属催化剂。
Spatially Formed Tenacious Nickel-Supported Bimetallic Catalysts for CO Methanation under Conventional and Induction Heating.
机构信息
Centre for Materials and Drug Discovery, Institute of Chemistry, Faculty of Science and Technology, University of Silesia, Szkolna 9, 40-006 Katowice, Poland.
Scientific and Didactic Laboratory of Nanotechnology and Material Technologies, Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18a, 44-100 Gliwice, Poland.
出版信息
Int J Mol Sci. 2023 Mar 1;24(5):4729. doi: 10.3390/ijms24054729.
The paper introduces spatially stable Ni-supported bimetallic catalysts for CO methanation. The catalysts are a combination of sintered nickel mesh or wool fibers and nanometal particles, such as Au, Pd, Re, or Ru. The preparation involves the nickel wool or mesh forming and sintering into a stable shape and then impregnating them with metal nanoparticles generated by a silica matrix digestion method. This procedure can be scaled up for commercial use. The catalyst candidates were analyzed using SEM, XRD, and EDXRF and tested in a fixed-bed flow reactor. The best results were obtained with the Ru/Ni-wool combination, which yields nearly 100% conversion at 248 °C, with the onset of reaction at 186 °C. When we tested this catalyst under inductive heating, the highest conversion was observed already at 194 °C.
本文介绍了用于 CO 甲烷化的空间稳定镍负载双金属催化剂。这些催化剂是由烧结的镍网或羊毛纤维与纳米金属颗粒（如 Au、Pd、Re 或 Ru）组成的。制备过程包括将镍羊毛或网形成并烧结成稳定的形状，然后用硅酸钠基质消解法生成的金属纳米颗粒进行浸渍。该方法可用于扩大商业应用。使用 SEM、XRD 和 EDXRF 对催化剂候选物进行了分析，并在固定床流动反应器中进行了测试。在 Ru/Ni-wool 组合中获得了最佳结果，在 248°C 下几乎达到 100%的转化率，反应起始温度为 186°C。当我们在感应加热下测试这种催化剂时，在 194°C 时就观察到了最高的转化率。
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