Condensation of furans for the production of diesel precursors: A study on the effects of surface acid sites of sulfonated carbon catalysts

Hyemin Yang; Han Ik Joh; Hyunah Choo; Jae wook Choi; Dong Jin Suh; Ung Lee; Jungkyu Choi; Jeong Myeong Ha

doi:10.1016/j.cattod.2020.05.006

Condensation of furans for the production of diesel precursors: A study on the effects of surface acid sites of sulfonated carbon catalysts

Hyemin Yang, Han Ik Joh, Hyunah Choo, Jae wook Choi, Dong Jin Suh, Ung Lee, Jungkyu Choi, Jeong Myeong Ha

Department of Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

The catalytic condensation of furfural and 2-methylfuran was performed to produce C15 diesel precursors using sulfonated acidic carbon catalysts, including multi-walled carbon nanotubes, graphene oxide, carbon aerogel, activated carbon, and carbon black. Sulfonated multi-walled carbon nanotubes were prepared with mild sulfonate grafting procedure, and displayed negligible modification of their pore structures. They exhibited the highest turnover frequency, indicating that the acid strength, depicted by the pK_a, determined the catalytic condensation activity. The pK_a values of the catalysts needed to be less than 4 for enabling the condensation of furfural and 2-methylfuran, and catalysts with pK_a values greater than 4 exhibited poor condensation. The pK_a, or acid strength, was determined by the environment of the surface sulfonates, which were electronically modified to adjust the stability of the sulfonate anions to release protons.

Original language	English
Pages (from-to)	155-163
Number of pages	9
Journal	Catalysis Today
Volume	375
DOIs	https://doi.org/10.1016/j.cattod.2020.05.006
Publication status	Published - 2020

Bibliographical note

Funding Information:
This work was supported by the Korea Institute of Science and Technology (KIST) Institutional Program ( 2E30170 ). This work was also supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of Republic of Korea (No. 20163010092210 ).

Publisher Copyright:
© 2020 Elsevier B.V.

Keywords

2-Methylfuran
Carbon
Condensation
Diesel
Furfural

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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10.1016/j.cattod.2020.05.006

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title = "Condensation of furans for the production of diesel precursors: A study on the effects of surface acid sites of sulfonated carbon catalysts",

abstract = "The catalytic condensation of furfural and 2-methylfuran was performed to produce C15 diesel precursors using sulfonated acidic carbon catalysts, including multi-walled carbon nanotubes, graphene oxide, carbon aerogel, activated carbon, and carbon black. Sulfonated multi-walled carbon nanotubes were prepared with mild sulfonate grafting procedure, and displayed negligible modification of their pore structures. They exhibited the highest turnover frequency, indicating that the acid strength, depicted by the pKa, determined the catalytic condensation activity. The pKa values of the catalysts needed to be less than 4 for enabling the condensation of furfural and 2-methylfuran, and catalysts with pKa values greater than 4 exhibited poor condensation. The pKa, or acid strength, was determined by the environment of the surface sulfonates, which were electronically modified to adjust the stability of the sulfonate anions to release protons.",

keywords = "2-Methylfuran, Carbon, Condensation, Diesel, Furfural",

author = "Hyemin Yang and Joh, {Han Ik} and Hyunah Choo and Choi, {Jae wook} and Suh, {Dong Jin} and Ung Lee and Jungkyu Choi and Ha, {Jeong Myeong}",

note = "Funding Information: This work was supported by the Korea Institute of Science and Technology (KIST) Institutional Program ( 2E30170 ). This work was also supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of Republic of Korea (No. 20163010092210 ). Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

doi = "10.1016/j.cattod.2020.05.006",

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AU - Choi, Jae wook

AU - Suh, Dong Jin

AU - Lee, Ung

AU - Choi, Jungkyu

AU - Ha, Jeong Myeong

N1 - Funding Information: This work was supported by the Korea Institute of Science and Technology (KIST) Institutional Program ( 2E30170 ). This work was also supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of Republic of Korea (No. 20163010092210 ). Publisher Copyright: © 2020 Elsevier B.V.

PY - 2020

Y1 - 2020

N2 - The catalytic condensation of furfural and 2-methylfuran was performed to produce C15 diesel precursors using sulfonated acidic carbon catalysts, including multi-walled carbon nanotubes, graphene oxide, carbon aerogel, activated carbon, and carbon black. Sulfonated multi-walled carbon nanotubes were prepared with mild sulfonate grafting procedure, and displayed negligible modification of their pore structures. They exhibited the highest turnover frequency, indicating that the acid strength, depicted by the pKa, determined the catalytic condensation activity. The pKa values of the catalysts needed to be less than 4 for enabling the condensation of furfural and 2-methylfuran, and catalysts with pKa values greater than 4 exhibited poor condensation. The pKa, or acid strength, was determined by the environment of the surface sulfonates, which were electronically modified to adjust the stability of the sulfonate anions to release protons.

AB - The catalytic condensation of furfural and 2-methylfuran was performed to produce C15 diesel precursors using sulfonated acidic carbon catalysts, including multi-walled carbon nanotubes, graphene oxide, carbon aerogel, activated carbon, and carbon black. Sulfonated multi-walled carbon nanotubes were prepared with mild sulfonate grafting procedure, and displayed negligible modification of their pore structures. They exhibited the highest turnover frequency, indicating that the acid strength, depicted by the pKa, determined the catalytic condensation activity. The pKa values of the catalysts needed to be less than 4 for enabling the condensation of furfural and 2-methylfuran, and catalysts with pKa values greater than 4 exhibited poor condensation. The pKa, or acid strength, was determined by the environment of the surface sulfonates, which were electronically modified to adjust the stability of the sulfonate anions to release protons.

KW - 2-Methylfuran

KW - Carbon

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JF - Catalysis Today

ER -

Condensation of furans for the production of diesel precursors: A study on the effects of surface acid sites of sulfonated carbon catalysts

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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