Sponge-like carbon monoliths: Porosity control of 3D-printed carbon supports and its influence on the catalytic performance

Chaparro-Garnica, Cristian Yesid; Bailón‐García, Esther; Davó‐Quiñonero, Arantxa; Lozano‐Castelló, Dolores; Bueno‐López, Agustín

doi:10.1016/j.cej.2021.134218

Cited by 12 publications

(9 citation statements)

References 37 publications

(41 reference statements)

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“…This high oxidation resistance coupled with their textural properties (broad macropores) suggests that the 3D-printed biobased carbon monoliths could be interesting catalyst supports for the preferential oxidation of carbon monoxide (CO–PrOx) such as those demonstrated by Chaparro-Garnica et al − The monoliths presented in this work are even more versatile, allowing for greater freedom of architecture, a wide range of porosity, and a reduction in the number of steps to obtain the carbon support.…”

Section: Resultsmentioning

confidence: 75%

3D-Printed Carbons with Improved Properties and Oxidation Resistance

Blyweert

Nicolas

Fierro

et al. 2023

ACS Sustainable Chem. Eng.

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In this paper, we show the preparation and characteristics of new 3D-printed porous carbons obtained by stereolithography (SLA) of a precursor resin followed by heat treatment. Their physical and textural properties can be tuned by using chemically modified biobased aromatic precursors as monomers. Thus, vanillin and polyflavonoids such as mimosa tannins can be used together as building blocks for SLA materials when functionalized with methacrylate groups by a solvent-free technique and mixed with a photosensitive resin. Adjusting the photosensitive formulations led to high thermal stability and an increase in carbon yield of up to 27%. The corresponding dense porous carbon materials showed outstanding mechanical properties, far exceeding those of other SLA-printed carbons and carbon foams, and a very low surface area, which improves their oxidation resistance compared to acrylate−tannin-derived carbon or activated carbons. This new approach to architecturally engineered carbons with tailored properties can therefore be used for the promising design of catalyst supports or sodium-ion batteries.

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Section: Resultsmentioning

confidence: 75%

3D-Printed Carbons with Improved Properties and Oxidation Resistance

Blyweert

Nicolas

Fierro

et al. 2023

ACS Sustainable Chem. Eng.

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“…[ 143 ] In relation to catalytic activity, the transfer improvement is associated to a better and faster transportation of reactants and products between the catalyst surface and the fluid, consequently resulting in an augment of reaction rates and conversions. [ 2,16,99 ]…”

Section: Structure Geometry Effectmentioning

confidence: 99%

“…The latter option has already been studied for the synthesis of carbonous and ceramic catalyst. In this regard, Chaparro et al [16,169,170] proposed a strategy that combines the FDM and sol-gel polymerization processes, which has enabled the obtention of integral carbon monoliths with complex channel architecture and tailorable porosity. The influence of the channel geometry and carbon porosity on CuO/CeO 2 catalytic performance was identified with the CO-PrOx reaction.…”

Section: Fused Deposition Modelingmentioning

confidence: 99%

“…Hence, the enforced laminar flow results in its lack of uniformity and radial mass and heat transfer limitations, impeding an appropriate usage of the active phases. [ 16 ] Thus, the progress of monoliths manufacturing techniques that enhance: the complexity of the designs, active phases deposition, and the interaction between reactants and catalysts represent an advancement opportunity at the industrial level to diminish costs of commonly expensive catalytic materials and increase their efficiency. Thus far, various AM technologies have been applied to catalysis to simplify the monolithic catalyst preparation and active phase loading process.…”

Section: Introductionmentioning

confidence: 99%

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Revolutionizing Monolithic Catalysts: The Breakthroughs of Design Control through Computer‐Aided‐Manufacturing

Parra‐Marfil,

Pérez‐Cadenas,

Carrasco‐Marín

et al. 2024

Adv Materials Technologies

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Additive manufacturing (AM) presents a promising opportunity for the innovative design and production of structured catalytic materials. Given the critical role of catalysts in industrial catalytic processes, AM has the potential to contribute to the development of improved catalysts by reducing activation energy and enhancing selectivity. Conventional synthesis methods limit the choice of structural materials and composition for producing monoliths. Additionally, the deposition of catalytic compounds is also restricted by commonly applied techniques that may require prior coverage or treatments to improve adherence or do not achieve a homogenous coat. Moreover, production is limited to monoliths with straight and parallel channels. However, this format drives to laminar regime flow thus restricting the radial mass and heat transfer. Conversely, AM allows the production of a wider variety of compositions and more complex structures that have proven to rise their effectiveness by increasing reagents‐catalyst interaction, making catalytic processes more cost‐effective. Therefore, in this review an outline of the recent progress of AM methods in the development of monolithic catalysts is presented focusing on the requirements, advantages, and disadvantages of each technique, hence providing a practical overview of their novel opportunities to overcome current limitations in catalyst synthesis.

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“…Thus, this technique has been employed as a viable option for the production of shaped carbon adsorbents [126]. Recently, Garnica and co-workers reported that sponge-like carbons with tailored channel architecture and porosity were prepared by combined solgel polymerization and 3D printing technology [127]. Mendes and co-workers prepared composite adsorbents composed of porous carbon and 13X zeolite, which were then 3D printed using bentonite as a binder [128].…”

Section: Structured Carbon Adsorbentsmentioning

confidence: 99%

Recent Advances in Carbon-Based Adsorbents for Adsorptive Separation of Light Hydrocarbons

Wang

Zhang

et al. 2022

Research

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Light hydrocarbons (LHs) separation is an important process in petrochemical industry. The current separation technology predominantly relies on cryogenic distillation, which results in considerable energy consumption. Adsorptive separation using porous solids has received widespread attention due to its lower energy footprint and higher efficiency. Thus, tremendous efforts have been devoted to the design and synthesis of high-performance porous solids. Among them, porous carbons display exceptional stability, tunable pore structure, and surface chemistry and thus represent a class of novel adsorbents upon achieving the matched pore structures for LHs separations. In this review, the modulation strategies toward advanced carbon-based adsorbents for LHs separation are firstly reviewed. Then, the relationships between separation performances and key structural parameters of carbon adsorbents are discussed by exemplifying specific separation cases. The research findings on the control of the pore structures as well as the quantification of the adsorption sites are highlighted. Finally, the challenges of carbonaceous adsorbents facing for LHs separation are given, which would motivate us to rationally design more efficient absorbents and separation processes in future.

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Sponge-like carbon monoliths: Porosity control of 3D-printed carbon supports and its influence on the catalytic performance

Cited by 12 publications

References 37 publications

3D-Printed Carbons with Improved Properties and Oxidation Resistance

3D-Printed Carbons with Improved Properties and Oxidation Resistance

Revolutionizing Monolithic Catalysts: The Breakthroughs of Design Control through Computer‐Aided‐Manufacturing

Recent Advances in Carbon-Based Adsorbents for Adsorptive Separation of Light Hydrocarbons

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