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Toumsri P, Auppahad W, Saknaphawuth S, Pongtawornsakun B, Kaowphong S, Dechtrirat D, Panpranot J, Chuenchom L. Facile preparation protocol of magnetic mesoporous carbon acid catalysts via soft-template self-assembly method and their applications in conversion of xylose into furfural. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2021; 379:20200349. [PMID: 34510931 DOI: 10.1098/rsta.2020.0349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/11/2021] [Indexed: 06/13/2023]
Abstract
Furfural is a valuable dehydration product of xylose. It has a broad spectrum of industrial applications. Various catalysts containing SO3H have been reported for the conversion of xylose into furfural. Nevertheless, the multi-step preparation is tedious, and the catalysts are usually fine powders that are difficult to separate from the suspension. Novel magnetic mesoporous carbonaceous materials (Fe/MC) were successfully prepared via facile self-assembly in a single step. A facile subsequent hydrothermal sulfonation of Fe/MC with concentrated H2SO4 at 180°C gave mesoporous carbon bearing SO3H groups (SO3H@Fe/MC) without loss of the magnetic properties. Various techniques were employed to characterize the SO3H@Fe/MC as a candidate catalyst. It showed strong magnetism due to its Fe particles and possessed a 243 m2 g-1 BET-specific surface area and a 90% mesopore volume. The sample contained 0.21 mmol g-1 of SO3H and gave a high conversion and an acceptable furfural yield and selectivity (100%, 45% and 45%, respectively) when used at 170°C for 1 h with γ-valerolactone as solvent. The catalyst was easily separated after the catalytic tests by using a magnet, confirming sufficient magneticstability. This article is part of the theme issue 'Bio-derived and bioinspired sustainable advanced materials for emerging technologies (part 2)'.
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Affiliation(s)
- P Toumsri
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand
| | - W Auppahad
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - S Saknaphawuth
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - B Pongtawornsakun
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - S Kaowphong
- Department of Chemistry, Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - D Dechtrirat
- Department of Materials Science, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
- Laboratory of Organic Synthesis, Chulabhorn Research Institute, Bangkok 10210, Thailand
| | - J Panpranot
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - L Chuenchom
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand
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Sachse R, Bernsmeier D, Schmack R, Häusler I, Hertwig A, Kraffert K, Nissen J, Kraehnert R. Colloidal bimetallic platinum–ruthenium nanoparticles in ordered mesoporous carbon films as highly active electrocatalysts for the hydrogen evolution reaction. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02285f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Ordered mesoporous carbon films with high surface area, good electrical conductivity and an improved distribution of NPs with tunable composition show high electrocatalytic activity in HER.
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Affiliation(s)
- René Sachse
- Technische Universität Berlin
- Faculty II Mathematics and Natural Sciences
- Institute of Chemistry
- 10623 Berlin
- Germany
| | - Denis Bernsmeier
- Technische Universität Berlin
- Faculty II Mathematics and Natural Sciences
- Institute of Chemistry
- 10623 Berlin
- Germany
| | - Roman Schmack
- Technische Universität Berlin
- Faculty II Mathematics and Natural Sciences
- Institute of Chemistry
- 10623 Berlin
- Germany
| | - Ines Häusler
- Technische Universität Berlin
- Faculty II Mathematics and Natural Sciences
- Institute of Optics and Atomic Physics
- 10623 Berlin
- Germany
| | - Andreas Hertwig
- Federal Institute for Materials Research and Testing (BAM)
- 12203 Berlin
- Germany
| | - Katrin Kraffert
- Technische Universität Berlin
- Faculty II Mathematics and Natural Sciences
- Institute of Chemistry
- 10623 Berlin
- Germany
| | - Jörg Nissen
- Technische Universität Berlin
- ZELMI
- 10623 Berlin
- Germany
| | - Ralph Kraehnert
- Technische Universität Berlin
- Faculty II Mathematics and Natural Sciences
- Institute of Chemistry
- 10623 Berlin
- Germany
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Bernsmeier D, Sachse R, Bernicke M, Schmack R, Kettemann F, Polte J, Kraehnert R. Outstanding hydrogen evolution performance of supported Pt nanoparticles: Incorporation of preformed colloids into mesoporous carbon films. J Catal 2019. [DOI: 10.1016/j.jcat.2018.11.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bernsmeier D, Bernicke M, Schmack R, Sachse R, Paul B, Bergmann A, Strasser P, Ortel E, Kraehnert R. Oxygen Evolution Catalysts Based on Ir-Ti Mixed Oxides with Templated Mesopore Structure: Impact of Ir on Activity and Conductivity. CHEMSUSCHEM 2018; 11:2367-2374. [PMID: 29813183 DOI: 10.1002/cssc.201800932] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Indexed: 06/08/2023]
Abstract
The efficient generation of hydrogen via water electrolysis requires highly active oxygen evolution catalysts. Among the active metals, iridium oxide provides the best compromise in terms of activity and stability. The limited availability and usage in other applications demands an efficient utilization of this precious metal. Forming mixed oxides with titania promises improved Ir utilization, but often at the cost of a low catalyst surface area. Moreover, the role of Ir in establishing a sufficiently conductive mixed oxide has not been elucidated so far. We report a new approach for the synthesis of Ir/TiOx mixed-oxide catalysts with defined template-controlled mesoporous structure, low crystallinity, and superior oxygen evolution reaction (OER) activity. The highly accessible pore system provides excellent Ir dispersion and avoids transport limitations. A controlled variation of the oxides Ir content reveals the importance of the catalysts electrical conductivity: at least 0.1 S m-1 are required to avoid limitations owing to slow electron transport. For sufficiently conductive oxides a clear linear correlation between Ir surface sites and OER currents can be established, where all accessible Ir sites equally contribute to the reaction. The optimized catalysts outperform Ir/TiOx materials reported in literature by about a factor of at least four.
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Affiliation(s)
- Denis Bernsmeier
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623, Berlin, Germany), Contact
| | - Michael Bernicke
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623, Berlin, Germany), Contact
| | - Roman Schmack
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623, Berlin, Germany), Contact
| | - René Sachse
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623, Berlin, Germany), Contact
| | - Benjamin Paul
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623, Berlin, Germany), Contact
| | - Arno Bergmann
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623, Berlin, Germany), Contact
| | - Peter Strasser
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623, Berlin, Germany), Contact
| | - Erik Ortel
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623, Berlin, Germany), Contact
| | - Ralph Kraehnert
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623, Berlin, Germany), Contact
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Bernsmeier D, Bernicke M, Ortel E, Schmack R, Polte J, Kraehnert R. Soft-templated mesoporous RuPt/C coatings with enhanced activity in the hydrogen evolution reaction. J Catal 2017. [DOI: 10.1016/j.jcat.2017.08.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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