Results 61 to 70 of about 121,502 (357)

Probing the Thermal Deoxygenation of Graphene Oxide using High Resolution In Situ X-Ray based Spectroscopies [PDF]

The Journal of Physical Chemistry C, 2011, 115, 17009-17019, 2011
Despite the recent developments in Graphene Oxide due to its importance as a host precursor of Graphene, the detailed electronic structure and its evolution during the thermal reduction remain largely unknown, hindering its potential applications.
arxiv   +1 more source

Polymer Brush Growth by Surface‐Initiated Ring‐Opening Polymerization from a Cross‐Linked Polymer Thin Film

Advanced Functional Materials, EarlyView.
A stable cross‐linked ultra‐thin polymer coating for surface‐initiated ring‐opening polymerization (SI‐ROP) of hexamethylcyclotrisiloxane and ε‐caprolactone for growth of high grafting density poly(dimethyl siloxane) and poly(caprolactone) brushes is developed.
Miguel Betancourt‐Ponce, Bharathan Govindarajan, Jacob Pike, Padma Gopalan   +3 more
wiley   +1 more source

First-principles investigation of Ag-Cu alloy surfaces in an oxidizing environment [PDF]

, 2007
In this paper we investigate by means of first-principles density functional theory calculations the (111) surface of the Ag-Cu alloy under varying conditions of pressure of the surrounding oxygen atmosphere and temperature. This alloy has been recently proposed as a catalyst with improved selectivity for ethylene epoxidation with respect to pure ...
arxiv   +1 more source

Photoenzymatic epoxidation of styrenes

Chemical Communications, 2019
Photochemical reduction of flavin adenine dinucleotide (FAD) enables the direct, non-enzymatic regeneration of styrene monooxygenase for enantiospecific epoxidation reactions.
Morten M. C. H. van Schie, Caroline E. Paul, Isabel W. C. E. Arends, Frank Hollmann   +3 more
openaire   +6 more sources

Shape‐Stabilization of Phase Change Materials with Carbon‐Conscious Poly(hydroxy)Urethane Foams

Advanced Functional Materials, EarlyView.
Poly(hydroxy)urethane (PHU) foam, derivable from carbon dioxide (CO2) and bio‐based resources, is a promising material platform for shape‐stabilizing phase change materials (PCMs). We demonstrate the encapsulation of both paraffins and calcium chloride hexahydrate in PHU foam, achieving 48 stable thermal cycles by introducing 5 wt.% barium carbonate ...
Minjung Lee, Samuel D. Dahlhauser, Chloe Lucci, Bryon S. Donohoe, Robert D. Allen, Nicholas A. Rorrer   +5 more
wiley   +1 more source

A New Stereoselective Approach to the Substitution of Allyl Hydroxy Group in para-Mentha-1,2-diol in the Search for New Antiparkinsonian Agents

Molecules, 2023
Two approaches to the synthesis of para-menthene epoxide ((1S,5S,6R)-4) are developed. The first approach includes a reaction between chlorohydrin 7 and NaH in THF. The second involves the formation of epoxide in the reaction of corresponding diacetate 6
Alexandra V. Podturkina, Oleg V. Ardashov, Konstantin P. Volcho, Nariman F. Salakhutdinov   +3 more
doaj   +1 more source

A Computational Investigation of the Catalytic Properties of Graphene Oxide: Exploring Mechanisms Using DFT Methods [PDF]

ChemCatChem 4, 1844-184 (2012), 2012
Here we describe a computational study undertaken in an effort to elucidate the reaction mechanisms behind the experimentally observed oxidations and hydrations catalyzed by graphene oxide (GO). Using the oxidation of benzyl alcohol to benzaldehyde as a model reaction, density functional theory (DFT) calculations revealed that this reactivity stemmed ...
arxiv   +1 more source

Enzyme-catalyzed cationic epoxide rearrangements in quinolone alkaloid biosynthesis. [PDF]

, 2017
Epoxides are highly useful synthons and biosynthons for the construction of complex natural products during total synthesis and biosynthesis, respectively.
Garcia-Borràs, Marc, Hirayama, Yuichiro, Houk, KN, Li, Dehai H, Li, Li, Tang, Mancheng C, Tang, Yi, Watanabe, Kenji, Zou, Yi   +8 more
core  

Making Photoresponsive Metal–Organic Frameworks an Effective Class of Heterogeneous Photocatalyst

Advanced Functional Materials, EarlyView.
This review summarizes photoresponsive MOFs for photocatalytic applications, focusing on their capacity to enhance light harvesting, charge transfer, and surface reactions. While existing studies provide foundational insights, emerging characterization techniques enable a deeper understanding of photoresponsive MOFs.
Rui Liu, Hao Wu, Hoi Ying Chung, Yun Hau Ng   +3 more
wiley   +1 more source

A Direct Method for Synthesis of Quinoxalines and Quinazolinones Using Epoxides as Alkyl Precursor

Molecules, 2023
An iodine-mediated one-pot synthesis of pyrrolo/indolo [1,2-a]quinoxalines and quinazolin-4-one via utilizing epoxides as alkyl precursors under metal-free conditions has been described.
Xueyan Lv, Lili Lv, Shichen Li, Chengcheng Ding, Bingchuan Yang, Chen Ma   +5 more
doaj   +1 more source