Synthesis of Na@nanoFAU Zeolite Catalyst and Catalysis for Production of Formic Acid with Na@nanoFAU

Yuting Li, Konstantin Khivantsev, Yu Tang, Luan Nguyen, Mahdi Fathizadeh, Jingyue Liu, Miao Yu, Franklin Tao

Research output: Contribution to journalArticle

Abstract

Abstract: Microporous aluminosilicate is one type of most important catalyst supports in catalysis reactions performed at high temperatures in gas phase and at a relatively low temperature in a liquid phase. There is significant limit of diffusion resulting from long diffusion path of molecules in a particle of aluminosilicate with a size of a few hundreds of nanometers and from the limited pore diameter of subnanometer when a catalytic reaction is performed in the micropores of aluminosilicate buried in liquid phase at a low temperature (< 200 °C). To avoid such diffusion limit, FAU at nanoscale (nanoFAU) was synthesized through growth of layered porous aluminosilicate in confined space between adjacent graphene oxide layers and a following removal of the graphene oxide through combustion at a high temperature. The as-synthesized nanoFAU exhibits a lateral dimension of tens of nanometers but a thickness of only 2–3 nm in terms of a single unit cell of zeolite. The Na + cations anchored on Brønsted site in micropores of the as-synthesized nanoFAU exhibit (Na@nanoFAU) is active for synthesis of formic acid from CO and H 2 O in aqueous solution under the gas phase of 10 bar CO. The apparent activation barrier for synthesis of formic acid on this Na@nanoFAU is about 50.1 kJ/mol. Graphical Abstract: [Figure not available: see fulltext.]

Original languageEnglish (US)
JournalCatalysis Letters
DOIs
StatePublished - Jan 1 2019
Externally publishedYes

Fingerprint

formic acid
Zeolites
Aluminosilicates
Formic acid
Catalysis
Catalysts
Graphite
Carbon Monoxide
Oxides
Graphene
Gases
Temperature
Liquids
Catalyst supports
Cations
Positive ions
Chemical activation
Molecules
aluminosilicate

Keywords

  • Formic acid
  • Synthesis
  • Zeolite

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Cite this

Synthesis of Na@nanoFAU Zeolite Catalyst and Catalysis for Production of Formic Acid with Na@nanoFAU. / Li, Yuting; Khivantsev, Konstantin; Tang, Yu; Nguyen, Luan; Fathizadeh, Mahdi; Liu, Jingyue; Yu, Miao; Tao, Franklin.

In: Catalysis Letters, 01.01.2019.

Research output: Contribution to journalArticle

Li, Yuting ; Khivantsev, Konstantin ; Tang, Yu ; Nguyen, Luan ; Fathizadeh, Mahdi ; Liu, Jingyue ; Yu, Miao ; Tao, Franklin. / Synthesis of Na@nanoFAU Zeolite Catalyst and Catalysis for Production of Formic Acid with Na@nanoFAU. In: Catalysis Letters. 2019.
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AU - Nguyen, Luan

AU - Fathizadeh, Mahdi

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AB - Abstract: Microporous aluminosilicate is one type of most important catalyst supports in catalysis reactions performed at high temperatures in gas phase and at a relatively low temperature in a liquid phase. There is significant limit of diffusion resulting from long diffusion path of molecules in a particle of aluminosilicate with a size of a few hundreds of nanometers and from the limited pore diameter of subnanometer when a catalytic reaction is performed in the micropores of aluminosilicate buried in liquid phase at a low temperature (< 200 °C). To avoid such diffusion limit, FAU at nanoscale (nanoFAU) was synthesized through growth of layered porous aluminosilicate in confined space between adjacent graphene oxide layers and a following removal of the graphene oxide through combustion at a high temperature. The as-synthesized nanoFAU exhibits a lateral dimension of tens of nanometers but a thickness of only 2–3 nm in terms of a single unit cell of zeolite. The Na + cations anchored on Brønsted site in micropores of the as-synthesized nanoFAU exhibit (Na@nanoFAU) is active for synthesis of formic acid from CO and H 2 O in aqueous solution under the gas phase of 10 bar CO. The apparent activation barrier for synthesis of formic acid on this Na@nanoFAU is about 50.1 kJ/mol. Graphical Abstract: [Figure not available: see fulltext.]

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