Results 201 to 210 of about 26,885 (272)

Effect of degree of sulfonation on the performance of adsorbent SAPO-34/S-PEEK composite coatings for adsorption heat pumps

, 2021
A composite adsorbent coating on Al6061 aluminum substrate, based on SAPO34 zeolite filler and sulfonate poly (ether-ether ketone) (S-PEEK) matrix is proposed for sustainable energy saving technologies.
D. Palamara, P. Bruzzaniti, L. Calabrese, E. Proverbio   +3 more
semanticscholar   +1 more source

Green Sulfonation of Carbon Catalysts via Gas–Liquid Interfacial Plasma for Cellulose Hydrolysis

ACS Sustainable Chemistry and Engineering, 2020
Sulfonated carbon catalysts exhibit excellent catalytic performance for biomass transformation, yet most currently used sulfonation approaches still rely on concentrated sulfuric acid or chlorsulfu...
Lusha Qin, T. Ishizaki, N. Takeuchi, Katsuyuki Takahashi, K. Kim, O. Li   +5 more
semanticscholar   +1 more source

Sulfonated polysulfone proton exchange membrane influenced by a varied sulfonation degree for vanadium redox flow battery

Journal of Membrane Science, 2019
A series of sulfonated polysulfone (SPSF) proton exchange membranes with varied degree of sulfonation (DS) are prepared through controlling the molar ratio of sulfonated agent and polysulfone (PSF).
Yuxia Zhang, Lanyue Zheng, Bo Liu, Haixia Wang, Haifeng Shi   +4 more
semanticscholar   +1 more source

Optimization of sulfonation process for the development of carbon-based catalyst from crambe meal via response surface methodology

, 2020
In this work, crambe meal was successfully used as precursor of sulfonated carbon-based catalyst for reaction of esterification of the oleic acid. The effects of the variables, temperature, time and H2SO4:carbon ratio of the sulfonation process on the ...
J. M. Fonseca, Lucas Spessato, André L. Cazetta, Karen C. Bedin, Sandra A.R. Melo, F. Souza, Vitor C. Almeida   +6 more
semanticscholar   +1 more source

Synthesis of carbohydrate sulfonates and sulfonate esters

The Journal of Organic Chemistry, 1990
La reaction d'esters α-lithio sulfonates avec des hydrures de carbohydrates primaires est une voie simple de synthese de sulfonates-analogues de phosphates hydrocarbones importants comme le glucose 6-phosphate, le ribose 5-phosphate et l'uridine 5-phosphate.
Branislav Musicki, Theodore S. Widlanski
openaire   +1 more source

Biomimetic photocatalytic sulfonation of alkenes to access β-ketosulfones with single-atom iron site

, 2020
Biomimetic photocatalysis as an important organic transformation strategy has received increasing attention, with the performances of biomimetic catalysts largely depending on their design.
Jiangwei Wen, Xiaoting Yang, Zongzhao Sun, Jianjing Yang, P. Han, Qiuxia Liu, H. Dong, Meng Gu, Limin Huang, Hua Wang   +9 more
semanticscholar   +1 more source

Spontaneous Oxidation of Aromatic Sulfones to Sulfonic Acids in Microdroplets

Journal of the American Society for Mass Spectrometry, 2022
Reactions in microdroplets can be accelerated and can present unique chemistry compared to reactions in bulk solution. Here, we report the accelerated oxidation of aromatic sulfones to sulfonic acids in microdroplets under ambient conditions without the addition of acid, base, or catalyst.
Lingqi Qiu, Michael D. Psimos, R. Graham Cooks   +2 more
openaire   +2 more sources

Enhanced CO2 permeability of thermal crosslinking membrane via sulfonation/desulfonation of phenolphthalein-based cardo poly(arylene ether ketone)

, 2020
Thermal crosslinking membranes for gas separation have excellent plasticization resistance compared to polymeric membranes. Their low gas permeability, however, is not high enough for industrial application at low cost.
R. Xu, Lin Li, Mengjie Hou, Jiajia Xue, Liu Yuzhe, Zonglin Pan, Chengwen Song, Tonghua Wang   +7 more
semanticscholar   +1 more source

Impact of Hydration and Sulfonation on the Morphology and Ionic Conductivity of Sulfonated Poly(phenylene) Proton Exchange Membranes

Macromolecules, 2019
Multiple computational and experimental techniques are used to understand the nanoscale morphology and water/proton transport properties in a series of sulfonated Diels–Alder poly(phenylene) (SDAPP) membranes over a wide range of temperature, hydration ...
E. Sorte, Benjamin A. Paren, C. G. Rodriguez, Cy H. Fujimoto, Cassandria Poirier, L. Abbott, Nathaniel A. Lynd, K. Winey, A. Frischknecht, T. Alam   +9 more
semanticscholar   +1 more source

Low temperature sulfonation of acai stone biomass derived carbons as acid catalysts for esterification reactions

Energy Conversion and Management, 2019
Heterogeneous acid catalysts derived from acai stone ( Euterpe oleracea Mart. ), a large-scale residue biomass, were synthesized by partial carbonization followed by sulfonation within a short preparation time under controllable conditions.
Rayanne O. Araújo, J. Chaar, L. S. Queiroz, G. N. Filho, C. D. Costa, Graziela C.T. da Silva, R. Landers, M. J. Costa, A. Gonçalves, L. D. Souza   +9 more
semanticscholar   +1 more source