Results 61 to 70 of about 105,486 (290)

Alternative pathways to α,β-unsaturated ketones via direct oxidative coupling transformation using Sr-doped LaCoO3 perovskite catalyst [PDF]

Royal Society Open Science, 2019
A strontium-doped lanthanum cobaltite perovskite material was prepared, and used as a recyclable and effective heterogeneous catalyst for the direct oxidative coupling of alkenes with aromatic aldehydes to produce α,β-unsaturated ketones.
Khang H. Trinh, Son H. Doan, Tien V. Huynh, Phuong H. Tran, Diep N. Pham, Minh-Vien Le, Tung T. Nguyen, Nam T. S. Phan   +7 more
doaj   +1 more source

Winter ozone formation and VOC incremental reactivities in the Upper Green River Basin of Wyoming [PDF]

, 2012
The Upper Green River Basin (UGRB) in Wyoming experiences ozone episodes in the winter when the air is relatively stagnant and the ground is covered by snow.
Carter, William P. L., Seinfeld, John H.
core   +1 more source

Engineering Strategies for Stable and Long‐Life Alkaline Zinc‐Based Flow Batteries

Advanced Functional Materials, EarlyView.
Alkaline zinc‐based flow batteries face persistent challenges from unstable zinc deposition, including dendrite growth, passivation, corrosion, and hydrogen evolution, which severely limit cycling stability. Current research addresses these issues through coordinated electrode structuring, electrolyte regulation, and membrane design to control zinc ...
Yuran Bai, Xiaoyu Huo, Xin Long, Enkang Fu, Xusong Gong, Lei Wei, Liang An   +6 more
wiley   +1 more source

Characterization of an isobutylene epoxide hydrolase (IbcK) from the isobutylene-catabolizing bacterium Mycolicibacterium sp. ELW1

Applied and Environmental Microbiology
Isobutylene (IB) is produced on a large scale by the petrochemical industry and is metabolized by the aerobic alkene-metabolizing bacterium Mycolicibacterium sp. ELW1. The initial metabolite of IB catabolism by this bacterium is proposed to be 2-methyl-1,
Nicholas W. Faulkner, John B. Joyce, Christy Smith, Paul Swartz, Robert B. Rose, Eric S. Miller, Michael R. Hyman   +6 more
doaj   +1 more source

Kinetic and Thermodynamic Studies of Carbenium Ion Additions Towards Alkenes [PDF]

, 1988
The ionisation (Ar2CHCl + BC13 v=± Ar2CH+BCi;) and dissociation (Ar2CH+BCi; ^=*Ar2CH+ + BCl^) equilibria of diarylmethyl chlorides i n boron trichloride/ dichloromethane solution have been studied by conductimetry, photometry and *H NMR spectroscopy ...
Arnett, Bader, Collins, Denison, Deno, Grattan, Kennedy, Mayr, Mayr, Mayr, Mayr, Mayr, Mayr, O'Brien, Pock, Reed, Schneider, Schneider, Schneider, Smid, Szwarc   +20 more
core   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source

In-situ EPR Studies of Reaction Pathways in Titania Photocatalyst-Promoted Alkylation of Alkenes [PDF]

, 2015
Acknowledgments This work was supported by Engineering and Physical Sciences Research Council (EPSRC) Grant EP/I00372X/1. The EPR spectrometer was purchased under EPSRC Grant EP/F032560/1.
Howe, Russell F., Rhydderch, Shona
core   +2 more sources

Characterization of the novel ene reductase Ppo-Er1 from paenibacillus polymyxa [PDF]

, 2020
Ene reductases enable the asymmetric hydrogenation of activated alkenes allowing the manufacture of valuable chiral products. The enzymes complement existing metal- and organocatalytic approaches for the stereoselective reduction of activated C=C double ...
Aregger, David, Buller, Rebecca, Peters, Christin   +2 more
core   +1 more source

Nanoparticle Shape Dictates Catalytic Performance in Selective Hydrogenation of Butadiene Over Au‐Pd Core‐Shell Nanoparticles

Advanced Functional Materials, EarlyView.
Controlling the exposed crystal facet of shape‐controlled Au‐Pd core‐shell catalysts though colloidal synthesis enhances their catalytic performance in the industrially relevant selective hydrogenation of butadiene. ABSTRACT Selective hydrogenation of butadiene is a critical step in purification of alkene feedstocks for polymer production and is ...
Marta Perxés Perich, Jan‐Willem Lankman, Petra E. de Jongh, Jessi E. S. van der Hoeven   +3 more
wiley   +1 more source

A Tri‐Culture Heart‐on‐a‐Chip Platform With iPSC‐Derived Cardiac Cells for Predictive Cardiotoxicity Testing

Advanced Healthcare Materials, EarlyView.
This study presents the first entirely isogenic heart‐on‐chip, unifying cardiomyocytes, fibroblasts, and endothelial cells from a single iPSC source. The platform reveals a critical biological insight: the endothelium actively shields cardiac tissue from drug‐induced toxicity, challenging the predictive accuracy of conventional, avascular models for ...
Karine Tadevosyan, Jose Yeste, Mar Alvarez, Denise Marrero, Laura Casado‐Medina, Yvonne Richaud‐Patin, Olalla García‐Iglesias, Jagoda Litowczenko, Alba Morillas Garcia, Anton Guimerà, Xavi Illa, Rosa Villa, Angel Raya   +12 more
wiley   +1 more source