Results 11 to 20 of about 852,367 (264)

Exploring the structures, stability, and light absorption properties of three thiostannates synthesised at similar conditions

Scientific Reports, 2021
We present the synthesis, crystal structures and optical properties of three thiostannates prepared by using 1-(2-aminoethyl)piperazine (AEPz) as structure directing agent.
Henrik S. Jeppesen, Peter Nørby, Jens Jakob Gammelgaard, Kasper Borup, Nina Lock   +4 more
doaj   +1 more source

Removal of Volatile Toluene Using K₂CO₃-Activated Carbon Adsorbents Prepared from Buckwheat Hull

Pollutants, 2022
Carbon adsorbents for use in the removal of gaseous toluene from the air were prepared from buckwheat (Fagopyrum esculentum Moench) hull. A chemically-activated adsorbent was prepared via the impregnation of raw hull powder with potassium carbonate ...
Tomoya Takada, Ryo Tanaka, Ryoto Ono
doaj   +1 more source

Catalytic Upgrading of Residual Fat Pyrolysis Vapors over Activated Carbon Pellets into Hydrocarbons-like Fuels in a Two-Stage Reactor: Analysis of Hydrocarbons Composition and Physical-Chemistry Properties

Energies, 2022
This work investigated the influence of the reaction time and catalyst-to-residual fat ratio by catalytic upgrading from pyrolysis vapors of residual fat at 400 °C and 1.0 atmosphere, on the yields of reaction products, physicochemical properties ...
Lucas Pinto Bernar, Caio Campos Ferreira, Augusto Fernando de Freitas Costa, Haroldo Jorge da Silva Ribeiro, Wenderson Gomes dos Santos, Lia Martins Pereira, Anderson Mathias Pereira, Nathalia Lobato Moraes, Fernanda Paula da Costa Assunção, Sílvio Alex Pereira da Mota, Douglas Alberto Rocha de Castro, Marcelo Costa Santos, Neyson Martins Mendonça, Sergio Duvoisin, Luiz Eduardo Pizarro Borges, Nélio Teixeira Machado   +15 more
doaj   +1 more source

Nitrogen doped porous carbon derived from nanofibrous polyaniline for CO2 adsorption [PDF]

Journal of Water and Environmental Nanotechnology, 2019
The objective of this work is to develop a cost-effective carbonaceous CO2 adsorbent. N-doped porous carbon (NDC) with nano- pore size was synthesized by KOH activation of nano polyaniline (PANI).
Soodabeh Khalili, Mohsen Jahanshahi
doaj   +1 more source

Biomass Nanoporous Carbon-Supported Pd Catalysts for Partial Hydrogenation of Biodiesel: Effects of Surface Chemistry on Pd Particle Size and Catalytic Performance

Nanomaterials, 2021
Two types of cattail flower-derived nanoporous carbon (NPC), i.e., NPC activated with KOH and H3PO4, were produced and characterized using several techniques (e.g., Raman spectroscopy, nitrogen adsorption, and X-ray photoelectron spectroscopy).
Parncheewa Udomsap, Sirasit Meesiri, Nuwong Chollacoop, Apiluck Eiad-Ua   +3 more
doaj   +1 more source

Improving Fuel Properties and Hydrocarbon Content from Residual Fat Pyrolysis Vapors over Activated Red Mud Pellets in Two-Stage Reactor: Optimization of Reaction Time and Catalyst Content

Energies, 2022
Catalytic upgrading of vapors from pyrolysis of triglycerides materials is a promising approach to achieve better conversions of hydrocarbons and production of liquid biofuels.
Caio Campos Ferreira, Lucas Pinto Bernar, Augusto Fernando de Freitas Costa, Haroldo Jorge da Silva Ribeiro, Marcelo Costa Santos, Nathalia Lobato Moraes, Yasmin Santos Costa, Ana Cláudia Fonseca Baia, Neyson Martins Mendonça, Sílvio Alex Pereira da Mota, Fernanda Paula da Costa Assunção, Douglas Alberto Rocha de Castro, Carlos Castro Vieira Quaresma, Sergio Duvoisin, Luiz Eduardo Pizarro Borges, Nélio Teixeira Machado   +15 more
doaj   +1 more source

Prodrugs for Amines

Molecules, 2008
The purpose of this work is to review the published strategies for the productionof prodrugs of amines. The review is divided in two main groups of approaches: those thatrely on enzymatic activation and those that take advantage of physiological ...
John F. Gilmer, John M. Clancy, Ana L. Simplício   +2 more
doaj   +1 more source

Characterization of Chemically Activated Pyrolytic Carbon Black Derived from Waste Tires as a Candidate for Nanomaterial Precursor

Nanomaterials, 2020
Pyrolysis is a feasible solution for environmental problems related to the inadequate disposal of waste tires, as it leads to the recovery of pyrolytic products such as carbon black, liquid fuels and gases.
Reyna Berenice González-González, Lucy T. González, Sigfrido Iglesias-González, Everardo González-González, Sergio O. Martinez-Chapa, Marc Madou, Mario Moisés Alvarez, Alberto Mendoza   +7 more
doaj   +1 more source

Activated Graphene Nanoplatelets Decorated with Carbon Nitrides for Efficient Electrocatalytic Oxygen Reduction Reaction

Advanced Energy & Sustainability Research, 2021
Designing a metal‐free and highly efficient electrocatalyst with large number of active sites and high stability for oxygen reduction reaction (ORR) holds great promise for the commercial production of low‐cost and stable fuel cells.
Premkumar Selvarajan, Mohammed Fawaz, CI Sathish, Mengyao Li, Dewei Chu, Xiaojiang Yu, Mark B. H. Breesec, Jiabao Yi, Ajayan Vinu   +8 more
doaj   +1 more source

Characterization of Activated Carbon from Rice Husk for Enhanced Energy Storage Devices

Molecules, 2023
The production of activated carbon (AC) from lignocellulosic biomass through chemical activation is gaining global attention due to its scalability, economic viability, and environmental advantages.
Meir S. Yerdauletov, Kuanysh Nazarov, Bagdaulet Mukhametuly, Mukhtar A. Yeleuov, Chingis Daulbayev, Roza Abdulkarimova, Almas Yskakov, Filipp Napolskiy, Victor Krivchenko   +8 more
doaj   +1 more source