Results 131 to 140 of about 105,720 (304)

Integrated and closed‐loop biorefinery strategies for efficient waste valorization and biofuel production

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Advancements in biofuel production technologies are essential for reducing global dependence on fossil fuels and addressing their overexploitation. Many valuable components of biomass, such as cellulose, hemicellulose, and lignin, remain underused in traditional biorefineries, which typically rely on a single feedstock to produce a primary ...
Marcos Paulo Patta Granado   +5 more
wiley   +1 more source

UTILIZAÇÃO DA FARINHA DE BABAÇU COMO EXTENSOR ALTERNATIVO NA PRODUÇÃO DE PAINÉIS COMPENSADOS

open access: yesCiência Florestal, 2009
This work aims at evaluating the potentiality of babaçu flour under differents percents (0%, 50%, 75%, and 100%) as alternative extensers to wheatmeal for plywood manufacturing.
Érika da Silva Ferreira   +4 more
doaj  

Revisiting the synthesis of dimethyl carbonate from methanol and carbon dioxide

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract The process for producing dimethyl carbonate (DMC) from carbon dioxide (CO2) and methanol is explored in this article. It provides an overview of the thermodynamics involved in DMC synthesis, discussing the challenges and potential solutions. The article highlights the reported use of catalysts and dehydrating agents to improve DMC yield and ...
Diego Alexander Santos Araque   +3 more
wiley   +1 more source

EVALUATION OF RAPESEED STALK PARTICLEBOARD BONDED WITH LABORATORY-MADE UREA-FORMALDEHYDE RESIN

open access: yesCiência Florestal, 2015
BrassicanapusL. (rapeseed) stalk was used as a possible raw material for particleboard. A urea-formaldehyderesin was synthesized in the laboratory with resin solids at 50% content as a particleboard binder.
Yong-Sung Oh, Mohd Ariff Jamaludin
doaj  

Manipulating the d‐Band Center of Ir by Metal‐Support Interaction to Optimize the Adsorption for Self‐Powered Hydrazine Oxidation‐Assisted Hydrogen Generation

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The d‐band center of Ir in Ir@BNC is synergistically regulated by B and N elements with large electronegativity differences and thus Ir@BNC exhibits eminent performances for both HER and HzOR, requiring −25 and 18 mV to reach 10 mA cm−2 in alkaline conditions. The OHzS device can be powered by DHHPFC and realize hydrogen production at a stable rate (53.
Junlin Huang   +9 more
wiley   +1 more source

Material Characterization with the Fuzzy Theory of Particleboards Bonded by Urea Formaldehyde with Nanofillers

open access: yesBioResources
This study investigated the material characterization with the fuzzy theory of particleboards bonded by urea formaldehyde with nanofillers including nanofibrillated cellulose (NFC) and titanium dioxide (TiO2).
Ömer Ümit Yalçın   +4 more
doaj   +2 more sources

Design of B,N Co‐Doped Carbon Spheres for Highly Effective Back Interface Engineering in Planar Carbon‐Based Perovskite Solar Cells

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The energy level mismatch of the perovskite/carbon back interface is decreased remarkably by using B, N co‐doped carbon sphere electrode in C‐PSCs, leading to effective charge carrier separation, extraction, and transport at the back interface. Combined with further buried modification using AMPA, the power conversion efficiency of the C‐PSCs is up to ...
Yujie Gao   +7 more
wiley   +1 more source

CHAPAS AGLOMERADAS CONFECCIONADAS COM UREIA-FORMALDEÍDO SOB ADIÇÃO DE TANINO EM PÓ

open access: yesCiência Florestal, 2017
This work aimed to evaluate the technological properties of particleboards manufactured with particles of Acacia mangium and urea-formaldehyde adhesive by addition of powder form commercial tannin of Acacia mearnsii to ...
Fabricio Gomes Gonçalves   +4 more
doaj  

Ureido Hyperbranched Polymer Modified Urea-Formaldehyde Resin as High-Performance Particleboard Adhesive. [PDF]

open access: yesMaterials (Basel), 2023
Yang H   +10 more
europepmc   +1 more source

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