Results 291 to 300 of about 7,409,072 (350)

Stabilization of elusive silicon oxides

Nature Chemistry, 2015
Molecular SiO2 and other simple silicon oxides have remained elusive despite the indispensable use of silicon dioxide materials in advanced electronic devices. Owing to the great reactivity of silicon-oxygen double bonds, as well as the low oxidation state of silicon atoms, the chemistry of simple silicon oxides is essentially unknown.
Yuzhong, Wang, Mingwei, Chen, Yaoming, Xie, Pingrong, Wei, Henry F, Schaefer, Paul von R, Schleyer, Gregory H, Robinson   +6 more
openaire   +2 more sources

Changes in chemical composition and oxidative stability of cold-pressed oils obtained from by-product roasted berry seeds

LWT, 2019
This study aimed to determine the effect of seed roasting on compositional parameters and oxidative stability of cold-pressed blackcurrant, raspberry, chokeberry, and strawberry seed oils, with rapeseed oil as a control sample.
S. Mildner-Szkudlarz, M. Różańska, A. Siger, P. Kowalczewski, M. Rudzińska   +4 more
semanticscholar   +1 more source

A review of the effect of the composition of biodiesel on NO x emission, oxidative stability and cold flow properties

Renewable and Sustainable Energy Reviews, 2016
Devendra Deshmukh
exaly   +2 more sources

Oxidative stability of polyaniline

Polymer Degradation and Stability, 2012
Abstract Standard globular and nanotubular polyaniline were exposed to strong oxidants, such as hydrogen peroxide or ammonium peroxydisulfate, in acidic, neutral, and alkaline aqueous media for 10 or 60 days. Even in the mixture of 30% hydrogen peroxide and concentrated sulfuric acid, polyaniline was not completely destroyed and left >30 wt.% residue.
Jaroslav Stejskal, Milena Exnerová, Zuzana Morávková, Miroslava Trchová, Jiřina Hromádková, Jan Prokeš   +5 more
openaire   +1 more source

Oxidative stability of flaxseed oil: Effect of hydrophilic, hydrophobic and intermediate polarity antioxidants.

Food Chemistry, 2018
Oxidative deterioration is a major issue limiting the utilization of flaxseed oil (FSO). Present study explored the effects of hydrophilic (tannic acid), hydrophobic (alpha-tocopherol), and intermediate polarity (ascorbyl palmitate) natural antioxidants,
Athira Mohanan, M. Nickerson, Supratim Ghosh   +2 more
semanticscholar   +1 more source

Oxidative Stability of Fullerenes

The Journal of Physical Chemistry, 1994
Mixtures of fullerenes are more susceptible to oxidation than the pure phases of fullerenes. For example, a mixture of 90 wt % C[sub 60]/10 wt % C[sub 70] reacts with air at 300[degree]C for 24 h to yield a product containing 95% of the initial mass but which manifests an atomic ratio of carbon to oxygen of 2.3; in contrast, there is [le]1 wt % loss ...
Joseph C. Scanlon, James M. Brown, Lawrence B. Ebert   +2 more
openaire   +1 more source

Effect of natural polyphenol on the oxidative stability of pecan oil.

Food and Chemical Toxicology, 2017
We evaluated the antioxidant activity of natural polyphenols which gives high oxidative stability to the pecan oil. The in vitro DPPH radical scavenging, reducing power and total antioxidant activity of tested antioxidants demonstrated that tannic acid ...
Yuan-yuan Zhang, Fang Zhang, K. Thakur, Ao-Te Ci, Hao Wang, Jian-Guo Zhang, Zhao‐Jun Wei   +6 more
semanticscholar   +1 more source

Oxidation and Stabilization of Rubbers

Rubber Chemistry and Technology, 1983
Abstract I would like to acknowledge the financial support of our research by the rubber industry, and by U.S. Army Ordnance Research, supplemented by other government agencies and the Petroleum Research Fund, ACS. I also want to emphasize that the honor of t award must be shared with all who have worked with me from the early 1940's to the ...
openaire   +1 more source

Oxidative stability of DHA phenolic ester

Food Chemistry, 2015
Docosahexaenoic acid vanillyl ester (DHA-VE) was synthesized from docosahexaenoic acid ethyl ester (DHA-EE) and vanillyl alcohol by a solvent-free alcoholysis process catalysed by Candida antarctica lipase B. Oxidative stability of pure DHA-VE and the crude reaction medium consisting of 45% DHA-VE and 55% DHA-EE were compared with that of DHA-EE under ...
Mohamed H H, Roby, Vanessa C, De Castro, Brenda N, Targino, Paulo H, Alves Da Silva, Cécile, Mangavel, Françoise, Chretien, Catherine, Humeau, Stephane, Desobry   +7 more
openaire   +2 more sources

The stability and unexpected chemistry of oxide clusters

Physical Chemistry Chemical Physics, 2018
The stability of FemOn clusters is determined by second energy differences.
Xiaohu Yu, Artem R. Oganov, Qiang Zhu, Fei Qi, Guangrui Qian   +4 more
openaire   +2 more sources