Bosilj, Monika published the artcileFunctionalising hydrothermal carbons for catalysis – investigating solid acids in esterification reactions, HPLC of Formula: 539-88-8, the main research area is hydrothermal carbon catalyst solid acid esterification reaction.
A simple and controllable acid functionalized catalyst synthesis is presented based on the hydrothermal carbonisation (HTC) of glucose in the presence of the structure directing agent sodium borate. This synthetic strategy in combination with a post-thermal carbonisation step allows direction of porosity/sp. surface area, and HTC xerogel material functionality. All these parameters influence the introduction of S-containing functional groups (e.g. acidity) to the xerogel. The prepared acid functionalized HTC materials were characterized via N2 sorption, back titration, elemental anal., XPS, ATR FT-IR, and SEM, with their applicability as solid acids assessed through model esterification reactions of different organic acids (e.g. short alkyl chain and aromatic systems). An S-functionalized HTC catalyst described in this study with a high sp. surface area and porosity (502 m2 g-1; 0.42 cm3 g-1), and a loading of 1.1 mmol g-1 SO3H/SO42- acid sites (from a 2.7 mmol g-1 of total acid groups) was found to have comparable catalytic activities as com. Amberlyst-36 catalyst in all the investigated esterification reactions. Catalyst re-usability under the applied batch conditions was improved by heating the catalyst at higher temperatures in order to remove deposited organic acids and their derivatives The concept presented provides a basis for further development and optimization of HTC supported catalysts in acid and other catalysis.
Catalysis Science & Technology published new progress about Acidity. 539-88-8 belongs to class esters-buliding-blocks, name is Ethyl 4-oxopentanoate, and the molecular formula is C7H12O3, HPLC of Formula: 539-88-8.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics