Results 41 to 50 of about 1,886 (171)

Development of Porosity and Copper(II) Ion Adsorption Capacity by Activated Nano-Carbon Xerogels in Relation to Treatment Schemes

Adsorption Science & Technology, 2011
In this study, activated nano-carbon xerogels were obtained by different activation schemes of a resorcinol–formaldehyde xerogel (RFX) with a resorcinol/catalyst (R/C) ratio of 50. For the precursor (RFX), activation was carried out under physical (steam)
Badie S. Girgis, Mohamed N. Alaya, Iman Y. El-Sherif, Amina A. Attia, Nady A. Fathy   +4 more
doaj   +1 more source

Biosourced, highly porous, carbon xerogel microspheres

RSC Advances, 2016
The first tannin-based carbon xerogel microspheres were prepared and characterised.
L. I. Grishechko, G. Amaral-Labat, V. Fierro, A. Szczurek, B. N. Kuznetsov, A. Celzard   +5 more
openaire   +3 more sources

Hybrid Silica Xerogel and Titania/Silica Xerogel Dispersions Reinforcing Hydrophilicity and Antimicrobial Resistance of Leathers

Gels, 2023
Four leather substrates from different animals were treated by dispersions containing hydrophilic composite silica-hyperbranched poly(ethylene imine) xerogels. Antimicrobial activity was introduced by incorporating silver nanoparticles and /or benzalkonium chloride.
Michael Arkas, Theofanis Bompotis, Konstantinos Giannakopoulos, Evangelos P. Favvas, Marina Arvanitopoulou, Konstantinos Arvanitopoulos, Labros Arvanitopoulos, Georgia Kythreoti, Michail Vardavoulias, Dimitrios A. Giannakoudakis, Laura Castellsagués, Sara Maria Soto González   +11 more
openaire   +3 more sources

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios, Léon Chiriatti, Simon Poppinga, Thomas Speck, Vincent Le Houérou   +4 more
wiley   +1 more source

Synergetic Combination of Carbon Xerogels, Graphene Oxide and nano‐ZnO for Aqueous and Organic Supercapacitors

Batteries &Supercaps, Volume 8, Issue 3, March 2025.
This work proposes the synthesis of carbon‐based nanostructured materials obtained using ZnO as both nanos‐ template and catalysts simultaneously. During the synthesis, GO was used as a stabiliser, preventing the collapse of the 3D structure and improving its properties in terms of capacitance and surface area.
Rusbel Coneo‐Rodríguez, Alvaro Yamil Tesio, Fernando Pablo Cometto, Gustavo Marcelo Morales, Gabriel Ángel Planes, Alvaro Caballero   +5 more
wiley   +1 more source

Physicochemical Properties of Mesoporous Organo-Silica Xerogels Fabricated through Organo Catalyst

Membranes, 2021
The physicochemical properties of organo-silica xerogels derived from organo catalyst were pervasively investigated, including the effect of one-step catalyst (citric acid) and two-step catalyst (acid-base), and also to observe the effect of sol pH of ...
Muthia Elma, Anna Sumardi, Adhe Paramita, Aulia Rahma, Aptar Eka Lestari, Dede Heri Yuli Yanto, Sutarto Hadi, Zaini Lambri Assyaifi, Sunardi, Yanuardi Raharjo   +9 more
doaj   +1 more source

Bio‐Inspired Robust Non‐combustible Bioplastic with Superinsulated Energy Harvesting for Intelligent Firefighting

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study develops a novel non‐combustible chitosan‐based bioplastic (NCCB) via ethanol‐induced surface assembly. The material's inherent flame retardancy and thermally insulating, rough surface enable high‐performance TENGs. The NCCB‐TENG maintains stable output even when exposed to fire and exhibits dual sensitivity to temperature (25–200°C) and ...
Qilin Lu, Liying Zhang, Pengyun Zhang, Junjie Wang, Huamin Chen, Hanchen Wang   +5 more
wiley   +1 more source

Environmental Remediation with Functional Aerogels and Xerogels

Global Challenges, 2020
Several different types of aerogels and xerogels are demonstrated as effective sorbents for the capture and/or immobilization of radionuclides and other contaminants in gaseous form [e.g., Hg(g), I2(g), Xe, Kr] as well as ionic form (e.g., Cd2+, Ce4+, Cs+
Brian J. Riley, Saehwa Chong
doaj   +1 more source

Sol‐Gel Coating on CA‐60 Steel Surfaces: A Process for Corrosion Inhibition

Materials and Corrosion, EarlyView.
30% of the steel produced worldwide is used to replace losses due to corrosion. The application of the sol‐gel process to inhibit and delay deterioration appears as a viable methodology for protection against aggressive environments. ABSTRACT The phenomenon of corrosion causes worldwide damage, which is not only economic but also results in the loss of
Aguinaldo Manoel da Silva Junior, Caroline Borges Azevedo, Jéssica Potomatti Batista, Emerson Henrique de Faria, Liziane Marçal, Katia Jorge Ciuffi, Lucas Alonso Rocha, Eduardo José Nassar   +7 more
wiley   +1 more source

Comparative Study of the U(VI) Adsorption by Hybrid Silica-Hyperbranched Poly(ethylene imine) Nanoparticles and Xerogels

Nanomaterials, 2023
Two different silica conformations (xerogels and nanoparticles), both formed by the mediation of dendritic poly (ethylene imine), were tested at low pHs for problematic uranyl cation sorption.
Michael Arkas, Konstantinos Giannakopoulos, Evangelos P. Favvas, Sergios Papageorgiou, George V. Theodorakopoulos, Artemis Giannoulatou, Michail Vardavoulias, Dimitrios A. Giannakoudakis, Konstantinos S. Triantafyllidis, Efthalia Georgiou, Ioannis Pashalidis   +10 more
doaj   +1 more source