High-Throughput Discovery of Hf Promotion on the Formation of Hcp Co and Fischer-Tropsch Activity
semanticscholar(2020)
摘要
A proxy-based high-throughput experimental approach was used to explore
the stability and activity of Co-based Fischer Tropsch Synthesis catalysts with
different promoters on various supports. The protocol is based on the
estimation by XRD of active phase, Co, particle size and relative amounts of
crystalline phases, Co to support. Sequential libraries samples enabled
exploration of four Co loadings with five different promoters on six support
materials. Catalysts stable to aging in syngas, displaying minimal change of
particle size or relative area, were evaluated for their activity under
industrial conditions. This procedure identified SiC as support for stable
catalysts and a combination of Ru and Hf to promote the formation hcp Co.
Unsupported bulk samples of Co with appropriate amounts of Ru and Hf revealed
that the formation of hcp Co is independent of the support. The hcp Co
containing catalyst presented the highest catalytic activity and C5+
selectivity amongst the samples tested in this study confirming the effectiveness
of the proxy-based high-throughput method.
更多查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要