Results 11 to 20 of about 128,607 (176)

Adsorption Processes for CO2 Capture from Biogas Streams

open access: yesEnergies, 2023
Anaerobic digestion plays a starring role in the development of a bioeconomy due to the practical advantages that gaseous fuels have over solid fuels (i [...]
Covadonga Pevida, Fernando Rubiera
doaj   +1 more source

Blog Versão Paulo: a prospecção do passado como maneira de pensar o presente e o futuro da cidade

open access: yesUrbana: Revista Eletrônica do Centro Interdisciplinar de Estudos da Cidade, 2016
A partir da apresentação de alguns posts  do blog Versão Paulo que abordam a relação da cidade no final do século XIX com o desequilíbrio ambiental e a maneira como a sociedade passa a se relacionar com as escalas de tempo e espaço, gostaria de discutir ...
Paula Ester Janovitch
doaj   +1 more source

Carbon Gels–Green Graphene Composites as Metal-Free Bifunctional Electro-Fenton Catalysts

open access: yesGels, 2023
The Electro-Fenton (EF) process has emerged as a promising technology for pollutant removal. However, the EF process requires the use of two catalysts: one acting as an electrocatalyst for the reduction of oxygen to H2O2 and another Fenton-type catalyst ...
Lilian D. Ramírez-Valencia   +4 more
doaj   +1 more source

Silicon/Biogas-Derived Carbon Nanofibers Composites for Anodes of Lithium-Ion Batteries

open access: yesC, 2020
The electrochemical performance of novel nano-silicon/biogas-derived carbon nanofibers composites (nSi/BCNFs) as anodes in lithium-ion batteries was investigated, focusing on composition and galvanostatic cycling conditions.
Ignacio Cameán   +3 more
doaj   +1 more source

CO2 Capture, Use, and Storage in the Cement Industry: State of the Art and Expectations

open access: yesEnergies, 2020
The implementation of carbon capture, use, and storage in the cement industry is a necessity, not an option, if the climate targets are to be met. Although no capture technology has reached commercial scale demonstration in the cement sector yet, much ...
Marta G. Plaza   +2 more
doaj   +1 more source

Revealing the Importance of Iron Aerogel Features as Electrocatalysts for the Oxygen Reduction Reaction

open access: yesGels
Metal nanoparticles supported in carbon materials are the traditional electrocatalyst currently used in many applications. However, these composite materials have many problems associated with the optimization of both components for the specific ...
Judith González-Lavín   +2 more
doaj   +1 more source

Sustentabilidad de parcelas con frutales Amazónicos en Loreto, Perú

open access: yesPeruvian Journal of Agronomy, 2022
La investigación tuvo por objetivos: a) Determinar los indicadores de diversidad en vegetación de los frutales amazónicos y diversidad de artrópodos del suelo en las parcelas de agricultores que fueron instalados por el INIA e IIAP en el área de ...
Aldi Alida Guerra-Teixeira   +2 more
doaj   +1 more source

Diamante (Cristal de Carbono)

open access: yes, 2011
La simulación muestra las características de un átomo de carbono y como al unirse de forma sencilla o sea, dos átomos de carbono se unen por un so brazo e, en la secuencia, cuando cuatro átomos de carbono sao colocados nos cuatro brazos de un carbono ...
Delgado Avendaño, Jaime
core   +2 more sources

Diamante (Cristal de Carbono)

open access: yes, 2016
La simulación muestra las características de un átomo de carbono y como al unirse de forma sencilla o sea, dos átomos de carbono se unen por un so brazo e, en la secuencia, cuando cuatro átomos de carbono sao colocados nos cuatro brazos de un carbono ...
Delgado Avendaño, Jaime
core   +2 more sources

Porous carbons with complex 3D geometries via selective laser sintering of whey powder

open access: yesScientific Reports
In addition to the inherent limitations of carbons to melt or flow, a vast majority of carbon precursors deforms during carbonisation, with stereolithography of thermoset resins being the preferred technology for 3D printing of carbons. An alternative is
Raúl Llamas-Unzueta   +3 more
doaj   +1 more source

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