Results 91 to 100 of about 493,957 (307)

The Application of an Activated Carbon Supported Cu-Ce/Ac Oxide Anode on the Electrocatalytic Degradation of Phenol

open access: yesInternational Journal of Electrochemical Science, 2017
The Cu-AC (AC: activated carbon) and Cu/Ce-AC composite materials were synthesized using a one-pot sol-gel method. The surface microstructure and composition of the resulting samples were characterized by Brunauer–Emmett–Teller (BET) specific surface ...
Jun-e Qu   +4 more
doaj   +1 more source

Reactions of Phenolic Mannich Bases with Phenols

open access: yesThe Journal of the Society of Chemical Industry, Japan, 1958
1)フェノールマンニッヒ塩基とフェノール類との反応は,フェノール性OH基の酸性度が大きいほど分解反応大でまたフェノール類添加により促進されるが,アニソールのようにOH基を有しないと促進しない。2)ニトロフェノール,アニリン等の添加により分解反応が促進される。また,これがオルトマンニッヒ塩基と,パラ,マンニッヒ塩基とにより大きく差を生じ,オルトマンニッヒ塩基において効果大で,パラマンニッヒ塩基であまり効果を認めなかった。3)オルトマンニッヒ塩基で,2,4-二置換フェノールを用いたものと相手フェノールを2,4-ジメチルフェノールとの,反応で, 発生ジメチルアミンの追跡により, 初期反応を2 次反応速度として取扱うことができる。マンニッヒ塩基の置換基RがCH3では活性化熱13.6kcal/mol ...
Keiichi Azuma   +3 more
openaire   +2 more sources

An Integrated Oxygen‐Supplying Device and Predictive Multiphysics Model for Extended Ambient Transport of Insulin‐Producing Cells

open access: yesAdvanced Functional Materials, EarlyView.
Cell therapies typically rely on cold‐chain logistics and cryopreservation, limiting access and compromising cell quality. Here, a dual‐chamber device separates an oxygen‐supplying chamber from a hyaluronic acid cargo chamber, sustaining oxygen delivery for over 70 h and enabling ambient‐temperature shipment.
Daniel A. Domingo‐Lopez   +9 more
wiley   +1 more source

Exploring the Photocatalytic Efficiency of Heterostructured TiO2 Nanobelts for Emerging Liquid Contaminants in Different Water Matrices

open access: yesSeparations
This study reports the development of shape-controlled TiO2 (B)/anatase heterostructures for the degradation of emerging environmental pollutants, including phenol, methomyl (insecticides), and diclofenac sodium (drug), under UV-visible-light irradiation
Humaira Asghar   +4 more
doaj   +1 more source

Employment of TiO2/AC as Particulate Electrode for Efficient Phenol Oxidation

open access: yesInternational Journal of Electrochemical Science, 2016
Titanium dioxide (TiO2) doped activated carbon (TiO2/AC) was prepared and its morphology, microstructure and phase composition were characterized by transmission electron microscope (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS)
Wang Lizhang   +5 more
doaj   +1 more source

New DNA sequences from bacteria converting phenol into acetate under strict anaerobic conditions

open access: yes, 2016
This work reports new fragments of DNA sequences related to microbes able to degrade phenol into acetate under strict anaerobic conditions. For this purpose, anaerobic digesting sludge was acclimatised to degrade phenol, then heat treated and in turn ...
Edyvean, R., Hernandez, J. E.
core   +1 more source

A Holistic Platform Approach for Developing Robust Pulmonary mRNA Delivery: Integrating Novel Phenolic Acid‐Derived Ionizable Lipids and Device Engineering

open access: yesAdvanced Functional Materials, EarlyView.
An integrated pulmonary mRNA delivery platform combining novel biodegradable syringic acid‐derived ionizable lipids, design‐of‐experiments formulation optimization, and vibrating‐mesh nebulizer engineering enabled stable aerosolization and efficient lung delivery.
Neha Kaushal   +21 more
wiley   +1 more source

STUDY OF VOLTAMMETRIC DETERMINATION OF PHENOLS AT THE LEVEL OF MAXIMUM PERMISSIBLE CONCENTRATION

open access: yesВестник Кемеровского государственного университета, 2014
In this paper we study the voltammetric determination of phenol. The effect of the electrochemical methods used to modify the surface of glassy carbon electrode (GCE) at its electroanalytical properties is shown.
I. K. Uskova, O. N. Bulgakova
doaj  

Synthesis of N-(2,8-Dioxo-1-oxaspiro[4.5]deca-6,9-dien-7-yl) Acetamide and Benzamide

open access: yesMolbank, 2009
The syntheses of two new spirolactones are described. Each compound was obtained as an off-white solid in 66% yields from 4-hydroxy-3-nitrobenzaldehyde.
Guy L. Plourde, Randy R. Spaetzel
doaj   +1 more source

Catalytic behaviour and copper leaching of Cu0.10Zn0.90Al1.90Fe0.10O4 spinel for catalytic wet air oxidation of phenol

open access: yes, 2012
A Cu0.10Zn0.90Al1.90Fe0.10O4 spinel catalyst prepared by the sol-gel method was tested for catalytic wet air oxidation (CWAO) of phenol. The catalyst showed high activity for phenol degradation.
Sun, Chenglin, Xu, Aihua, 徐爱华
core   +1 more source

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