Results 41 to 50 of about 17,683 (250)

Electron-withdrawing ability tunable polyphosphazene frameworks as novel heterogeneous catalysts for efficient biomass upgrading [PDF]

, 2016
A series of polyphosphazene nano-frameworks with electron-withdrawing capability have been produced and exhibited high activity as non-acidic heterogeneous catalysts for the dehydration of fructose to 5-hydroxymethylfurfural under mild conditions with ...
Akien, Alamillo, Amarasekara, Antal Jr, Binder, Carniti, Chheda, Crisci, Delidovich, Dibenedetto, Esposito, Hu, Huang, Huang, Khokhlova, Kılıç, Kuster, Liu, Mohanty, Mondal, Moreau, Mukherjee, Nakamura, O'Neill, Peng, Qi, Román-Leshkov, Román-Leshkov, Rosatella, Takagaki, Tao, Tian, Tucker, van Dam, Wang, Wang, Wettstein, Wilfert, Yong, Zakrzewska, Zhang, Zhao   +41 more
core   +1 more source

MetalCenter‐Dependent Selectivity Divergence in MN4 Single‐Atom Catalysts for Aerobic HMF Oxidation

Advanced Science, EarlyView.
Two single‐atom catalysts with M‐N4 configurations (FeN4 and CoN4) were developed for selective HMF oxidation. FeN4 achieves 93.9% selectivity toward FFCA via superoxide anions (O2•−), while CoN4 preferentially produces FDCA through hydroxyl radicals (•OH). DFT calculations reveal that distinct adsorption energies and charge redistribution at the metal
Haoyu Wang, Zhilong Ye, Weihao Wang, Zhi Hu, Qing Tian, Jie Gao, Lianbing Zhang   +6 more
wiley   +1 more source

Photocatalytic selective oxidation of 5-(hydroxymethyl)-2-furaldehyde to 2,5-furandicarbaldehyde in water by using anatase, rutile and brookite TiO2 nanoparticles [PDF]

, 2013
5-(Hydroxymethyl)-2-furaldehyde (HMF) was selectively oxidized to 2,5-furandicarbaldehyde (FDC) in aqueous medium by using home-prepared (HP) anatase, rutile, and brookite TiO2 nanoparticles.
Alagöz, O, AUGUGLIARO, Vincenzo, LODDO, Vittorio, PALMISANO, Giovanni, PALMISANO, Leonardo, Tek, BS, Yurdakal, S   +6 more
core   +3 more sources

Determination of 5-hydroxymethylfurfural (HMF) by means of flow-through analyzer.

Kvasný průmysl, 2001
The article deals with the determination of 5-hydroxymethylfurfural in intermediates and beer during its production and storage by means of SKALAR flow-through analyzer.
J. ŠAVEL, K. PAZOUREK
doaj   +1 more source

3D‐Printed Metal‐Supported MOF‐Heteropoly Acid Nanozyme for High‐Performance Peroxidase‐Mimic Activity and Ultra‐Sensitive Glucose Detection

Advanced Science, EarlyView.
A hierarchically structured Fe‐BTC‐PMA immobilized 3D‐printed platform is engineered as a robust artificial enzyme for colorimetric glucose sensing. The hybrid architecture efficiently activates H2O2 to drive TMB oxidation. This integrated system enables sensitive, reusable, and scalable detection with enhanced catalytic stability and analytical ...
Paramita Koley, Ranjithkumar Jakku, Subhash Chandra Shit, Jang Mee Lee, Guy N. L. Jameson, Tayebeh Hosseinnejad, Selvakannan Periasamy, Deshetti Jampaiah, Amrit Raj Paul, Ylias Sabri, Suresh K. Bhargava   +10 more
wiley   +1 more source

The role of oxygen-vacancy in bifunctional indium oxyhydroxide catalysts for electrochemical coupling of biomass valorization with CO2 conversion

Nature Communications, 2023
Electrochemical coupling of biomass valorization with carbon dioxide (CO2) conversion provides a promising approach to generate value-added chemicals on both sides of the electrolyzer.
Fenghui Ye, Shishi Zhang, Qingqing Cheng, Yongde Long, Dong Liu, Rajib Paul, Yunming Fang, Yaqiong Su, Liangti Qu, Liming Dai, Chuangang Hu   +10 more
doaj   +1 more source

Milp Optimization Model for 5-hydroxymethylfurfural Production from Fructose

Chemical Engineering Transactions, 2021
A critical strategy to sustainably satisfy the growing global demand for chemicals is to replace fuel-based products with bio-based-ones. The 5-hydroxymethylfurfural (HMF) is a bio-based versatile building block capable of substitute several chemicals ...
Barbara L.S. Santiago, Reginaldo Guirardello   +1 more
doaj   +1 more source

Synthesis of terephthalic acid via Diels-Alder reactions with ethylene and oxidized variants of 5-hydroxymethylfurfural [PDF]

, 2014
Terephthalic acid (PTA), a monomer in the synthesis of polyethylene terephthalate (PET), is obtained by the oxidation of petroleum-derived p-xylene. There is significant interest in the synthesis of renewable, biomass-derived PTA.
Davis, Mark E., Pacheco, Joshua J.
core   +2 more sources

Orthogonal Design of Competing Deprotonation Process in Cation‐Mediated Ni(OH)2 for Achieving Industrial Level Biomass Electrooxidation

Advanced Science, EarlyView.
A Cu‐mediated Ni(OH)2 catalyst with orthogonal activity by precise valence engineering simultaneously accelerates rate‐determining aldehyde C─H activation in HMF oxidation and impedes O─H deprotonation in competing OER. This multi‐functional synergistic catalysis enables FDCA production at industrial‐level current densities without sacrificing FEFDCA ...
Junge Yang, Zhengjie Chen, Lili Zhang, Tao Zhang, Shida Bao, Jing Peng, Hui Pan, Hui‐Ming Cheng   +7 more
wiley   +1 more source

Creating a more robust 5-hydroxymethylfurfural oxidase by combining computational predictions with a novel effective library design [PDF]

, 2018
Additional file 4: Figure S1. Michaelis–Menten graph of WT and 7xHMFO.
Fraaije, Marco W, Martin, Caterina, Ovalle Maqueo, Amaury, Wijma, Hein J   +3 more
core   +8 more sources