CO2 conversion under h2-rich reactant via reverse water gas shift reaction

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K15349
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 27020:Chemical reaction and process system engineering-related
• Research Institution: Yamagata University
• Principal Investigator: Fujiwara Kakeru 山形大学, 大学院理工学研究科, 助教 (70816628)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: CO2 / Pt触媒 / CeO2

Outline of Final Research Achievements

In this study, metal oxide-supported Pt catalysts were prepared using flame spray pyrolysis (FSP) method, which can be scaled-up to industrial reactors. The FSP-made catalysts showed high activity and selectivity for reverse water-gas shift reaction. On the other hand, it was suggested that the Pt content in the FSP-made particles was lower than the preparation amount. In order to prevent the loss of expensive Pt, the synthesis conditions were examined. The Pt loss is attributed to the oxidation of Pt into sublimable PtO2 in the flame.

Free Research Field

材料プロセス

Academic Significance and Societal Importance of the Research Achievements

CO2を原料とした化成品の生産は、持続可能性の高い社会の実現には不可欠である。本研究では、CO2から化成品の原料となるCOを、低温で効率的に製造する触媒の開発に成功した。
火炎噴霧熱分解法により合成された本触媒は、粒子中のPt量が原料中の仕込み量よりも低い可能性が示唆された。本手法は触媒調製に広く用いられており、合成された粒子中と前駆体中の元素比は同じであると考えられてきた。今回の結果はその結果を覆す新たな発見となった。