Results 131 to 140 of about 183,291 (252)

Emissions pollutant from diesel, biodiesel and natural gas refuse collection vehicles in urban areas [PDF]

, 2010
Urban pollution is more and more concern due to human health implications. In that way, emissions pollutant from commercial vehicles which move daily at fixed itineraries such as, buses and refuse collection vehicles must be monitored.
Aparicio Izquierdo, Francisco, Flores Holgado, María Nuria, Jiménez Alonso, Felipe, López Martínez, José María   +3 more
core   +1 more source

Synthesis of Novel Two‐Dimensional Co–H3BTC–4,4′‐BiPy Metal Organic Framework and Its Derived Cobalt‐Based Nanostructured Catalyst for Glycerol Electrooxidation

ChemElectroChem, Volume 13, Issue 9, 5 May 2026.
A novel Co‐based metal‐organic framework (MOF) with 1,3,5‐benezenetricarboxylic acid (H3BTC) and 4,4′‐Bipyridine (4,4′‐BiPy) has been synthesised using the solvothermal method, named Co–H3BTC–4,4′‐BiPy. The MOF‐derived catalyst, Co NPs@NC‐600, shows high catalytic activity for electrochemical glycerol oxidation, delivering a current density of 10 mA.cm‐
Monolina Samanta, Biplab Kumar Manna, Supriya Panda, Manjunatha Kempasiddaiah, Tushar Khairwal, Rajib Samanta, Suryakanta Senapati, Sayak Roy, Sudip Barman   +8 more
wiley   +1 more source

Chemical Profiling and Biological Activity of Copaiba Oil‐Resin Samples and Development of HPLC‐DAD Method for the Analysis of β‐Caryophyllene

Biomedical Chromatography, Volume 40, Issue 5, May 2026.
ABSTRACT The Copaifera species are traditionally used for their anti‐inflammatory, antiseptic and healing properties. The objective of this study was to compare the chromatographic profiles of seven samples of copaiba oil‐resin with respect to chromatographic and physicochemical properties and to evaluate their biological activities.
Gabriel de A. P. Graça, Cláudia G. Silva, Denise de O. Scoaris, Juliana Rodrigues de Vasconcelos, André Santos Alkimim, Vanessa C. F. Mosqueira, Luciana S. Salomon, Pietra Piotto Marcellini, Isabelle Renata Martins da Silva, Janete S. C. Santos, Andreia Fonseca Silva, Carolina P. S. Moreira, Júlio C. D. Lopes, Vera L. de Almeida   +13 more
wiley   +1 more source

ZnO‐Functionalized Silicon Carbide Ceramic Membranes for Removing Impurities From Biodiesel

International Journal of Ceramic Engineering &Science, Volume 8, Issue 3, May 2026.
Silicon carbide (SiC) ceramic membranes functionalized with zinc oxide (ZnO) were assessed for biodiesel purification through crossflow filtration. The ZnO–SiC membranes effectively retained metallic impurities, especially calcium, sodium, and phosphorus, achieving levels that meet biodiesel quality standards.
Arthur Santos Romero, Nilanjan Santra, Nijhuma Kayal, Nahum Travitzky, J. Vladimir Oliveira, Murilo Daniel de Mello Innocentini, Dachamir Hotza   +6 more
wiley   +1 more source

Biodiesel: Tomorrow\u27s Fuel, Today\u27s Solution [PDF]

, 2009
Study of physical and chemical properties of biodiesel fuels derived from poultry and plant ...
Molina, Roberto J., Persuad, Racheal A.
core   +1 more source

Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS

The Canadian Journal of Chemical Engineering, Volume 104, Issue 5, Page 2206-2224, May 2026.
Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa, Jildimara de Jesus Santana, Viviane de Oliveira Campos, Felipe Fernandes Barbosa, Gregory S. Patience   +4 more
wiley   +1 more source

Statistical approach to optimization of the transesterification reaction from sorrel (hibiscus sabdariffa) oil [PDF]

, 2012
In an effort to optimize the reaction conditions of biodiesel production from Sorrel seed oil, Response Surface Methodology (RSM) was applied and the effects of reaction temperature, catalyst amount, reaction time and methanol/oil molar ratio, and ...
Adepoju, Tunde .F., Betiku, Eriola, Olatunde, Bello .J., Solomon, Bamidele O   +3 more
core  

Thermal Field–Enhanced Electro‐, Photo‐, and Photoelectrocatalytic Processes: Fundamentals, Material Design, and Applications

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 3, May 2026.
Overview of thermal field–enhanced electro‐, photo‐, and photoelectrocatalytic processes: fundamentals, material design, and applications. As a very attractive approach to energy conversion and storage, electrocatalytic, photocatalytic, and photoelectrocatalytic strategies have gained increasing attention in the past decades.
Ziyi Qiao, Lingyi Li, Bing He, Yunhai Zhu, Yihuang Chen, Yingkui Yang, Xueqin Liu   +6 more
wiley   +1 more source

PTO performance and NOx emissions with D2, B20, and B100 fuels in a John Deere 3203 compact tractor [PDF]

, 2007
Tests were conducted in fall 2006 on a John Deere 3203 diesel tractor to determine differences in specific fuel consumption, power take-off (PTO) torque, PTO power, thermal efficiency, and oxides of nitrogen (NOx) emissions between No. 2 diesel (D2), 20%
Brown, Tonya, Hardin, Matthew, Johnson, Donald, Roller, Melanie, Wardlow, George   +4 more
core   +2 more sources

Desulfurization of Benzothiophene Derivatives by Solvent Extraction Coupled With Oxidation Using Oxomolybdenum(VI) Bis(pyrazolyl)methane Catalysts

European Journal of Inorganic Chemistry, Volume 29, Issue 13, 1 May 2026.
A polymeric hybrid material formulated as [MoO3(bis(pyrazolyl)methane)] has been prepared and used as a catalyst precursor for the complete oxidative desulfurization of a model diesel containing recalcitrant benzothiophene derivatives. The precursor is converted in situ to an oxodiperoxo active species which is retained in the recyclable extractant ...
Ana C. Gomes, Fátima Mirante, Isabel S. Gonçalves, Martyn Pillinger, Salete S. Balula   +4 more
wiley   +1 more source