JBCS

The optimization of the flow field size can improve the performance of the PEMFC under the inadequate air supply of cathode and ensure that it is close to the level under the normal air supply.

Methyl biodiesel and ethyl biodiesel obtained from Fucus vesiculosus oil using alkaline catalysis showing to be a potential raw material for the production of biodiesel.

Chemical modification of polypropylene by treatment with concentrated sulfuric acid and fuming sulfuric acid; Application as a catalyst heterogeneous acid in the reaction of esterification of oleic acid with methanol to produce methyl oleate.

Adsorbent biomaterials based on silica and chitosan were synthesized, characterized and tested in a Y-olfactometer for release of a natural Aedes aegypti mosquito repellent.

In this short review, recent reports of the main glycosylation methods, basic mechanisms, factors influencing the stereoselectivity and their applications in the synthesis of bioactive molecules are described.

Creation and emission of reactive nitrogen species have increased dramatically in the last hundred years; such nitrogen compounds act in the atmosphere to produce secondary aerosol, which has deleterious effects to the human health, environment, and climate.

The classification of chemical substances constitutes a large net with classes on the knots and chemical reactions as relations between them.

The application of the flipped classroom in the teaching organic chemistry, specifically NMR, in two classes of a Chemistry degree course is discussed in this article revealing possibilities for the teaching and learning processes.

Example of phenomenon observed when chloride is added to a solution containing the cations of Group I and when the filtrate from the hot solution is added to a solution containing chromate.

Silver nanoparticles were synthesized using chitosan as a capping agent. The stability of AgNPs colloid was studied in the aqueous medium in the presence of Hg²⁺ and other ions using UV-vis spectroscopy.

Carbonate outcrop of the western slope of monte Rorigo, in Santo Hipólito, MG.

This paper is about the visit of Fritz Haber to Brazil, in 1914. The present work tries to recover the historical fact behind the visit of this important scientist to Brazil.