Hydrogen-free carbon monoxide production through decomposition of formic acid over a HPW/TiO2 catalyst

Kang, Dong-Chang; Pyen, Seung Hee; Kim, Eun-Jeong; Kim, Young Woo; Suh, Young‐Woong; Kim, Dong‐Pyo; Shin, Chae‐Ho; Min, Hyung‐Ki

doi:10.1016/j.jiec.2023.03.056

Journal of Industrial and Engineering Chemistry

2023

DOI: 10.1016/j.jiec.2023.03.056

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Hydrogen-free carbon monoxide production through decomposition of formic acid over a HPW/TiO2 catalyst

Dong-Chang Kang

Seung Hee Pyen

Eun-Jeong Kim

et al.

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2024

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Cited by 3 publications

References 62 publications

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Formic Acid Dehydration Using Mechanochemically Prepared TiO₂‐Graphite Composites

Yruela‐Garrido,

Martín‐Rodríguez,

Castillejos

et al. 2024

ChemCatChem

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Commercial high surface area graphite (HSAG300) and commercial TiO2 were used to produce composite materials through a simple mechanochemical method involving milling and ultrasonic treatments. The acid and basic sites exposed on the surfaces of these materials were characterized by temperature‐programmed desorption (TPD) of ammonia and carbon dioxide. The catalytic materials were tested in the dehydration reaction of formic acid to produce hydrogen‐free CO. While HSAG300 is practically inactive under reaction conditions (continuous gas flow at temperatures in the range of 100‐250 ºC), all samples containing TiO2 are active, exhibiting high selectivity to CO without significant deactivation at moderate reaction temperatures. It is demonstrated that the presence of graphite in the catalysts enhances the specific catalytic activity of TiO2. Assuming that the dehydration reaction is catalyzed by acid sites on the TiO2 surfaces, a comparative evaluation of the surface sites reveals that the graphite‐TiO2 interactions not only change the density of surface sites but also modify the strength of the acid centers of TiO2. In summary, the interaction of HSAG300 with TiO2 modulates the surface properties of the prepared composite catalysts, decreasing the total number of basic surface sites and increasing the strength of acidic sites compared to bare TiO2.

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Formic Acid Dehydration Using Mechanochemically Prepared TiO₂‐Graphite Composites

Yruela‐Garrido,

Martín‐Rodríguez,

Castillejos

et al. 2024

ChemCatChem

View full text Add to dashboard Cite

show abstract

Effect of the reorganization of acid sites induced by metal species on TiO2 supports on the conversion of furfural to acetals and ethers

Fang,

Du,

Liu

et al. 2024

Catalysis Today

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Invigorating surface frustrated Lewis pairs on bifunctional quasi-disordered Sn-based catalyst for solar photothermocatalytic conversion of CO2 from air

Tayyab,

Park,

Kim

et al. 2024

Journal of Catalysis

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Hydrogen-free carbon monoxide production through decomposition of formic acid over a HPW/TiO2 catalyst

Cited by 3 publications

References 62 publications

Formic Acid Dehydration Using Mechanochemically Prepared TiO₂‐Graphite Composites

Formic Acid Dehydration Using Mechanochemically Prepared TiO₂‐Graphite Composites

Effect of the reorganization of acid sites induced by metal species on TiO2 supports on the conversion of furfural to acetals and ethers

Invigorating surface frustrated Lewis pairs on bifunctional quasi-disordered Sn-based catalyst for solar photothermocatalytic conversion of CO2 from air

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Hydrogen-free carbon monoxide production through decomposition of formic acid over a HPW/TiO2 catalyst

Cited by 3 publications

References 62 publications

Formic Acid Dehydration Using Mechanochemically Prepared TiO2‐Graphite Composites

Formic Acid Dehydration Using Mechanochemically Prepared TiO2‐Graphite Composites

Effect of the reorganization of acid sites induced by metal species on TiO2 supports on the conversion of furfural to acetals and ethers

Invigorating surface frustrated Lewis pairs on bifunctional quasi-disordered Sn-based catalyst for solar photothermocatalytic conversion of CO2 from air

Contact Info

Product

Resources

About

Formic Acid Dehydration Using Mechanochemically Prepared TiO₂‐Graphite Composites

Formic Acid Dehydration Using Mechanochemically Prepared TiO₂‐Graphite Composites