Lishil Silvester

Fully characterized HAP solids with various Ca/P ratios were used in the Guerbet reaction of ethanol to produce higher alcohols. In this respect, an optimal ratio between the amount of acid and basic sites of 5 was evidenced.

Reactivity

10.1039/c5cy00327j

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Citations (74)

Influence of Silica Functionalization on Water Sorption and Thermochemical Heat Storage of Mesoporous SBA-15/CaCl₂ Composites

ACS Applied Energy Materials (2021)

Lishil Silvester Quentin Touloumet Aiman Kamaruddin F. Chassagneux G. Postole

SBA-CaCl2 (SCa) composites with high CaCl2 content were prepared using nonfunctionalized and methyl- and carboxyl-functionalized mesoporous SBA-15 supports, and their thermochemical heat storage (TCHS) performances have been investigated using a thermogravimetric/differential scanning calorimetry (TG/DSC) system coupled with a humidity generator. This paper presents the influence of silica (SBA-15) functionalization on the structural–textural properties of SCa composites and consequently on their water sorption and heat storage performances. All SCa composites exhibited enhanced water uptake compared to the pure CaCl2 due to the good dispersion of salt particles in the SBA pores. The nonfunctionalized composite demonstrated the highest water sorption rate and heat storage capacity compared to all functionalized composites. The Fickian rate constant (k) and conversion rate (dα/dt) determined for the hydration cycles revealed that the water sorption rate of the SCa composites is mainly controlled by the intrinsic reaction between the salt particles and water. The best performing nonfunctionalized composite exhibited a stable heat storage capacity (317 ± 6 kJ mol–1CaCl2) and hydration rate (7 ± 0.15 × 10–5 s–1) for five successive hydration cycles at 30% relative humidity (RH).

Surface Modification

Thermogravimetric analysis

10.1021/acsaem.1c00786

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Citations (25)

Study of the synergetic effect in Pt-Pd bimetallic supported catalysts for the selective hydrogenation of glucose and furfural

HAL (Le Centre pour la Communication Scientifique Directe) (2019)

Robert Wojcieszak Paul Sébastien Priscilla M. de Souza Lishil Silvester Anderson G. M da Silva

Bimetallic strip

Source

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Citations (0)

Relationship between number and strength of acid-base catalytic sites and their selectivity in isopropanol dehydration reaction

Lishil Silvester G. Postole S. Segondy A. Auroux J-L. Dubois

Base (topology)

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On the use of an in situ magnetometer to study redox and sintering properties of NiO based oxygen carrier materials for chemical looping steam methane reforming

International Journal of Hydrogen Energy (2019)

Dragomir B. Bukur Lishil Silvester Nico Fischer Michael Claeys Angeliki A. Lemonidou

Chemical-Looping Combustion

Non-blocking I/O

Thermogravimetric analysis

10.1016/j.ijhydene.2019.05.045

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Citations (15)

Fine tuning of the physico-chemical properties of a MIL-53(Al) type - Mesoporous alumina composite using a facile sacrificial-template synthesis approach

Microporous and Mesoporous Materials (2020)

Lishil Silvester Aishah Naim Alexandra Fateeva G. Postole Aline Auroux

Template method pattern

10.1016/j.micromeso.2020.110443

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Citations (18)

Guerbet Reaction over Strontium‐Substituted Hydroxyapatite Catalysts Prepared at Various (Ca+Sr)/P Ratios

ChemCatChem (2016)

Lishil Silvester Jean‐François Lamonier Carole Lamonier Mickaël Capron Rose‐Noëlle Vannier

Abstract The Guerbet reaction of ethanol to heavier products was performed over a series of extensively characterized Sr‐substituted hydroxyapatites (HAPs) with different (Ca+Sr)/P ratios, and thus different structural, textural, and acid–base properties. The acid–base properties were correlated with the reactivity of the solids and an optimal ratio between the amount of acid and basic sites was determined (ca. 4), whereas the ethanol conversion was mainly depending on the specific surface area of the solids. The stoichiometric 100 mol % Sr‐substituted sample (SrAp‐100) was especially efficient in higher alcohols production, which can be illustrated by a total alcohol selectivity (76.4 %) higher than that of all the other solids at a 13 % ethanol isoconversion.

Hydroxyapatites

Stoichiometry

Base (topology)

Reactivity

10.1002/cctc.201601480

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Citations (33)

Structural, textural and acid–base properties of carbonate-containing hydroxyapatites

Journal of Materials Chemistry A (2014)

Lishil Silvester Jean‐François Lamonier Rose‐Noëlle Vannier Carole Lamonier Mickaël Capron

HAP solids were prepared with different Ca/P ratios and Na⁺cations before being characterized by XRD, XPS, LEIS, NMR, IR, and TGA. Their acid–base properties were then measured and discussed in relation to the characterization results.

Hydroxyapatites

Base (topology)

Characterization

10.1039/c4ta01628a

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Citations (117)

Lishil Silvester

Papers

Citation

H-Index

i-10 index

Papers

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H-Index

i-10 index