Materials Proceedings

With Zr-doped ceria (Ce_0.6Zr_0.4O₂, CZ40) discovered as a promising redox material, metal oxide (MO)-based thermochemical cycles offer a feasible technique for CO₂ splitting (CDS) at lower temperatures. There are currently few thorough thermodynamic efficiency evaluations available, [...] Read more.

With Zr-doped ceria (Ce_0.6Zr_0.4O₂, CZ40) discovered as a promising redox material, metal oxide (MO)-based thermochemical cycles offer a feasible technique for CO₂ splitting (CDS) at lower temperatures. There are currently few thorough thermodynamic efficiency evaluations available, despite experimental validation of its redox efficacy. The two-step CZ40-driven CDS cycle is modeled in this study, and experimental data are used to perform the efficiency analysis. Solar-to-fuel efficiency increases from 0.74% to 1.00% as a result of reducing solar heat demand from 434.05 kW to 322.17 kW by boosting gas-to-gas heat recuperation from 0.0 to 0.3. Full article

(This article belongs to the Proceedings of The International Conference on Advanced Nano Materials)

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7 pages, 754 KB

Open AccessProceeding Paper

Ultrafast Sonochemical Synthesis of SBA-15 Mesoporous Silica at 25 °C

by Jorge Gajardo, Julio Colmenares-Zerpa, Giancarlo González, Francesc Gispert-Guirado, Adolfo Henríquez and Ricardo J. Chimentão

Mater. Proc. 2026, 30(1), 2; https://doi.org/10.3390/materproc2026030002 - 11 Mar 2026

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Abstract

Ultrafast sonochemical synthesis of SBA-15 performed via the pH-adjustment method at 25 °C was reported. Ultrasound treatment was applied to the entire synthesis process for a period of 90 min. The sonication synthesis was compared with the aging-mediated sonication method. Ultrasound assistance under [...] Read more.

Ultrafast sonochemical synthesis of SBA-15 performed via the pH-adjustment method at 25 °C was reported. Ultrasound treatment was applied to the entire synthesis process for a period of 90 min. The sonication synthesis was compared with the aging-mediated sonication method. Ultrasound assistance under the studied conditions allows the aging step to be replaced and minimizes the structural deterioration of SBA-15 due to the pH-adjustment effect. In addition, the hydrophilic character and CO₂ adsorption capacity of these materials were studied using contact-angle techniques and CO₂ adsorption, respectively. Ultrasonic synthesis at 25 °C results in the best uniformity of a mesopore structure relative to its peers. Full article

(This article belongs to the Proceedings of The International Conference on Advanced Nano Materials)

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13 pages, 2495 KB

Open AccessProceeding Paper

Synthesis, Integration with Textiles, and Application in Sensors of SrMoO₄:Ag

by Vinícius Prado Corrallo, Vitória Silva Novoa, Noemy Rodrigues Santos, Daniel Tetsuo Gonçalves Mori, Julia Carina Orfão Costa, Rogério de Almeida Vieira, Paulo Henrique Silva Marques de Azevedo, Graça Soares, Roseli Künzel and Ana Paula de Azevedo Marques

Mater. Proc. 2026, 30(1), 3; https://doi.org/10.3390/materproc2026030003 - 9 Mar 2026

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Abstract

This study investigates pure and Ag-doped SrMoO₄ powders (Sr_1−xAg_xMoO₄, x = 0, 0.01, 0.07), focusing on structural, optical, and functional properties. We evaluate its photocatalytic performance, capacitance response in lactate solution and water, and antimicrobial activity [...] Read more.

This study investigates pure and Ag-doped SrMoO₄ powders (Sr_1−xAg_xMoO₄, x = 0, 0.01, 0.07), focusing on structural, optical, and functional properties. We evaluate its photocatalytic performance, capacitance response in lactate solution and water, and antimicrobial activity in textiles. The diffraction patterns could be indexed to the pure tetragonal phase SrMoO₄. The doping of SrMoO₄ with Ag⁺ ions affects the morphology and particle size of the samples designed by co-precipitation. SrMoO₄ pure and Ag⁺-doped samples exhibited promising results in detecting water and lactate solutions, as well as photocatalysis. Pure SrMoO₄ was more efficient in the photodegradation of methylene blue (MB) than the sample doped with Ag⁺. Among the bactericidal test results, sample SMO:0.01-P4, without light, in S. aureus, and SMO:0.07-P3, with light in E. coli, showed a slight distance from the inhibition halo. These results suggest that the treated textile may possess a characteristic bactericidal capacity that deserves further exploration. This comprehensive analysis offers insights into the structure–function relationship of SrMoO₄:Ag and advances the development of multifunctional materials. Full article

(This article belongs to the Proceedings of The International Conference on Advanced Nano Materials)

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4 pages, 1442 KB

Open AccessProceeding Paper

Solar Thermal Energy Storage Using La_0.2Sr_2.8MnO₃ Perovskite Oxide Redox Chemistry

by Rahul R. Bhosale

Mater. Proc. 2026, 30(1), 4; https://doi.org/10.3390/materproc2026030004 - 12 Mar 2026

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Abstract

The potential of La_0.2Sr_0.8MnO₃ (LSM28) perovskite oxide for thermochemical energy storage (TCES) is assessed by analyzing its thermochemical performance. The TCES capacity of LSM28 was measured using a non-stoichiometric and van’t Hoff analysis at various reduction temperatures ( [...] Read more.

The potential of La_0.2Sr_0.8MnO₃ (LSM28) perovskite oxide for thermochemical energy storage (TCES) is assessed by analyzing its thermochemical performance. The TCES capacity of LSM28 was measured using a non-stoichiometric and van’t Hoff analysis at various reduction temperatures ( T r e d ) and oxygen partial pressures ( P O 2 ). O₂ release and the associated non-stoichiometry (δ) increase with T r e d and decrease with P O 2 , according to the results, reaching a maximum δ of 0.101 at 1473 K and 0.0001 atm. The van’t Hoff research also showed that LSM28’s TCES capacity fluctuates greatly with δ, peaking at 37.1 kJ/kg under ideal circumstances. Full article

(This article belongs to the Proceedings of The International Conference on Advanced Nano Materials)

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5 pages, 450 KB

Open AccessProceeding Paper

Amorphous Mesoporous Magnesium Carbonate: Synthesis and Dehydrating Performance via Different Magnesium Oxides Precursors

by Giancarlo González, Francesc Medina, Chin Li Cheung and Ricardo J. Chimentão

Mater. Proc. 2026, 30(1), 5; https://doi.org/10.3390/materproc2026030005 - 9 Mar 2026

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Abstract

Amorphous mesoporous magnesium carbonate (AMMC) materials were synthesized solvothermally using different magnesium oxide (MgO) precursors. These precursors were synthesized via the sol–gel method that employed various carboxylic acids (oxalic acid, citric acid, and maleic acid) as gelling agents. The specific type of carboxylic [...] Read more.

Amorphous mesoporous magnesium carbonate (AMMC) materials were synthesized solvothermally using different magnesium oxide (MgO) precursors. These precursors were synthesized via the sol–gel method that employed various carboxylic acids (oxalic acid, citric acid, and maleic acid) as gelling agents. The specific type of carboxylic acid used was found to modulate the textural properties and CO₂ capture capability of the intermediate MgO, consequently regulating the textural and structural properties of the final AMMC materials. This solvothermal method offers advantages as it avoids the need for additives or harsh conditions. The capacity of AMMC materials to trap water was also evaluated. Full article

(This article belongs to the Proceedings of The International Conference on Advanced Nano Materials)

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