Results 61 to 70 of about 12,733 (226)

A comprehensive study on butanolysis of furfuryl alcohol to butyl levulinate using tungstated zirconia and sulfonated carbon catalysts

open access: yesCarbon Resources Conversion, 2021
This work presents the formation of butyl levulinate, a potential fuel additive, and an excellent renewable chemical obtained by the butanolysis of furfuryl alcohol (FAL) over a solid acid catalyst.
Upender Rao Thuppati   +3 more
doaj   +1 more source

A Simple Approach to Distinguish Classic and Formaldehyde-Free Tannin Based Rigid Foams by ATR FT-IR [PDF]

open access: yes, 2015
Tannin based rigid foams (TBRFs) have been produced with formaldehyde since 1994. Only recently several methods have been developed in order to produce these foams without using formaldehyde.
Alexander, Petutschnigg   +3 more
core   +1 more source

Diels‐Alder Click Chemistry as a Dynamic‐Covalent Crosslinking Method in Spheroid‐Encapsulating Hydrogels for Cartilage Engineering

open access: yesAdvanced Healthcare Materials, Volume 15, Issue 17, 8 May 2026.
This research shows the development of hydrogels with Diels‐Alder click chemistry for engineering cartilage‐like tissue. The hydrogels support cartilage spheroids which could be cultured for at least 28 days. Furthermore, the spheroids showed a tendency to fuse together into a more consistent construct, and produced important components needed for ...
Sanne M. van de Looij   +8 more
wiley   +1 more source

Production of templated carbon nano materials, carbon nanofibers and super capasitors [PDF]

open access: yes, 2008
i. Porous carbons are usually obtained via carbonization of precursors of natural or synthetic origin, followed by activation. To meet the requirements, a novel approach, the template carbonization method, has been proposed. Replication, the process of
Dumanli, Ahu Gumrah   +8 more
core  

Toward Tailored Metastability: Exploring Oxanorbornene Chemical Space for Structure–Stability Relationships With Atypical Furan Diels–Alder Adducts

open access: yesChemistryEurope, Volume 4, Issue 5, May 2026.
The furan Diels–Alder reaction is a versatile platform for metastable and biobased molecules and materials. By accessing atypical oxanorbornene adducts, we expand furan Diels–Alder chemistry beyond activated addends and show that cycloreversion stability can be tuned over six orders of magnitude, revealing structure–stability relationships that enable ...
Eva Harsevoort   +2 more
wiley   +1 more source

Spin Effects in Photocatalysis: Fundamental Insights and Applications

open access: yesCarbon Neutralization, Volume 5, Issue 3, May 2026.
This review outlines the fundamental principles of spin‐dependent processes in photocatalysis, with a focus on recent advances in spin effects across various applications, including photocatalytic water splitting, CO2 conversion, environmental remediation, organic synthesis, and H2O2 production.
Yang‐Sen Xu   +4 more
wiley   +1 more source

Hydroconversion of Furfural over Cu-Cr/SiO2 Nanocatalysts: A Comparative Study [PDF]

open access: yesIranian Journal of Chemical Engineering, 2018
Furfural is one of the most promising chemical platforms with bright perspective with respect to the production of biobased chemicals and fuels from lignocellulosic material.
M. Ghashghaee, S. Shirvani, V. Farzaneh
doaj  

Efficient Hydrogenation of Furfural to Furfuryl Alcohol Using Cu‐Impregnated Chromium Silicate Catalysts in Ethanol Media

open access: yesChemistrySelect, Volume 11, Issue 17, 5 May 2026.
Efficient hydrogenation of furfural to furfuryl alcohol over a Cu‐impregnated mesoporous Cr‐silicate catalyst synthesized with PDADMAC, achieving complete conversion and 86% selectivity under mild ethanolic conditions. ABSTRACT A 10 wt.% Cu‐impregnated chromium silicate catalyst was synthesized via a sol–gel method followed by hydrothermal treatment ...
Vinicius L. Medeiros   +3 more
wiley   +1 more source

Lightweight piston architecture [PDF]

open access: yes, 1990
The invention is an improvement in a lightweight carbon-carbon composite piston, the improvement uses near-net shape knitted or warp-interlock preforms to improve the structural qualities of the piston.
Ransone, Philip O., Taylor, Allan H.
core   +1 more source

Ring opening metathesis polymerisation of a new bio-derived monomer from itaconic anhydride and furfuryl alcohol [PDF]

open access: yes, 2016
A new oxa-norbornene bio-based lactone obtained from the 100% atom economic reaction of furfuryl alcohol and itaconic anhydride via a tandem Diels-Alder addition and lactonisation is presented. Esterification of the resulting acid gives a monomer for the
Adrian C. Whitwood   +37 more
core   +1 more source

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