JBCS

We identified palmitic, linoleic, oleic and stearic acids as the main constituents in the lipid extract from microalgae biomass present in the Amazonian ecosystem (Macapá-AP).

The POM anion was successfully inserted by intercalated and nickel supported LDH laminate by Mg₂AlNi and Mg3Al layered double hydroxide. The synergistic effect exists between the POMs and the nickel supported LDH laminate. Which lead to have a good catalytic performance in the oxidation of cyclohexanol.

Schematic diagram showing the homogeneous esterification and transesterification steps of Brazilian nut oil (Bertholletia excelsa).

Reduction of the total organic carbon (%TOC) of the Biodiesel wastewater by the electrochemical treatments.

The process represented above show the chemical hydrolysis of the hemicellulose fraction from sunflower seed cake and its conversion into ethanol through the use of unconventional xylose fermenting yeasts.

The reaction mechanism of disproportionating methyltrichlorosilane and trimethylchlorosilane are catalyzed by 24T cluster AlCl₃/X-ZSM-5(X stands for pre- and post-modified by (AlCl₂)⁺, (BCl₂)⁺).

Plumieride was isolated from A. cathartica flowers with higher yields with MAE. A simple and accurate HPLC method has been validated to quantify plumieride. Yields of plumieride obtained by MAE and conventional extraction were compared.

A sequential injection method was developed for determination of As(III) in waters using gold electrodes. The sampling throughput was 20 analyses h-1 with LOQ of 5.2 µg L^-1, a value 2-fold lower than that allowed by World Health Organization (10 µg L^-1).

The activation parameters show that for the covalent functionalization, the COCl functionalized single wall carbon nanotube (NTCOCl) is kinetically favored with respect to the NTCOOH.

Steel work biomonitoring based on the Tillandsia usneoides: collection at PUC-Rio, relocation to the sampling stations and clustering based on the elemental analysis.

Perovskite solar cells are being one of the most important emerging photovoltaics in this century, with a significant increase in energy conversion efficiency, due to their fantastic properties, diversification of the processing methods and different materials.

A series of α-acetyloxy-N-cyclohexylamides was efficiently obtained via Passerini reaction of cyclohexyl isocyanide, acetic acid, and different aromatic and aliphatic aldehydes using refluxing dimethylcarbonate (DMC) as unconventional solvent.

CO₂ adsorption present in landfill biogas using zeolites 4A. The use of zeolites is an alternative to landfill biogas purification targeting the use of methane.

A low-cost lab-made photoreactor was assembled and used in preparation of nanomaterials.

Didactic sequence of development of biative molecules approaching the Lipinski's five-rule and synthesis of 1,3,4-oxadiazole heterocycle using domestic microwave oven.

A green solvent-free synthesis of 4-chloroacetanilide both under hand grinding and mechanical grinding of stoichiometric amounts of acetanilide with trichloroisocyanuric acid.