Results 21 to 30 of about 14,978 (262)

Nanomaterials Based Electrochemical Sensors for Serotonin Detection: A Review

Chemosensors, 2021
The present review deals with the recent progress made in the field of the electrochemical detection of serotonin by means of electrochemical sensors based on various nanomaterials incorporated in the sensitive element.
Dorin Dăscălescu, Constantin Apetrei
doaj   +1 more source

Identification of (20R)‐protopanaxadiol from Panax ginseng as a novel anti‐SARS‐CoV‐2 compound

FEBS Open Bio, EarlyView.
We established a noninfectious BAC‐based SARS‐CoV‐2 replicon that enables antiviral screening under BSL‐2 conditions. Using this platform, we screened 373 food‐derived compounds and identified (20R)‐protopanaxadiol from Panax ginseng as a novel inhibitor of SARS‐CoV‐2 RNA replication, highlighting the value of safe replicon systems for antiviral ...
Midori Takeda, Natsue Maezono, Rina Uchikoshi, Nobuyuki Kato, Masanori Ikeda   +4 more
wiley   +1 more source

Effects of Different Loadings of Ru and Re on Physico-Chemical Properties and Performance of 15% Co/Al2O3 FTS Catalysts [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2005
An extensive study of Fischer-Tropsch synthesis (FTS) on alumina-supported cobalt catalysts promoted with different amounts of ruthenium and rhenium is reported. Up to 2 wt% of promoters, are added to the catalyst by coimpregnation.
Ahmad Tavasoli, Yadollah Mortazavi, Abbas Ali Khodadadi, Mohammad Ali Mousavian, Kambiz Sadagiani, Ali Karimi   +5 more
doaj  

Spectroelectrochemical analysis of the mechanism of (photo)electrochemical hydrogen evolution at a catalytic interface

Nature Communications, 2017
Understanding reaction mechanisms in heterogeneous (photo)electrochemical catalysts is key to improving solar-to-fuel conversion efficiencies. Here the authors compare the mechanism of hydrogen evolution on ruthenium oxide as an electrocatalyst and as ...
Ernest Pastor, Florian Le Formal, Matthew T. Mayer, S. David Tilley, Laia Francàs, Camilo A. Mesa, Michael Grätzel, James R. Durrant   +7 more
doaj   +1 more source

Influence of Ru on structure and corrosion behavior of passive film on Ti-6Al-4V alloy in oil and gas exploration conditions

Scientific Reports, 2022
In order to investigate the influence of minor Ru on the electrochemical behaviour and structural characteristics of passive films on the surface of Ti-6Al-4V alloys under various oil and gas exploration conditions, electrochemical techniques, X-ray ...
Qiang Liu, Hongtao Liu, Junfeng Xie, Wei-fu Zhang, Yi-ming Zhang, Chun Feng, Guang-shan Li, Yang Yu, Sheng-yin Song, Cheng-xian Yin   +9 more
doaj   +1 more source

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

Advanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

Sonochemical boron incorporation enhances activity and durability of ruthenium oxide for acidic water oxidation

Nature Communications
The inherent instability of ruthenium oxide in acidic environments, coupled with the persistent activity-stability trade-off, constitutes a fundamental barrier to advancement of proton exchange membrane water electrolyzers.
Tianrui Xue, Zhongliang Liu, Heng Liu, Shiqi Li, Yiting Song, Zhen He, Yongjun Shen, Kai Zhou, Shixin Yin, Jian Zhang, Jiayan Huang, Yi Shi, Hao Li, Zhen-Yu Wu, Huihui Li, Chunzhong Li, Shu-Hong Yu   +16 more
doaj   +1 more source

Preparation and Properties of a New Thick Film System

Active and Passive Electronic Components, 1986
Work has been carried out to develop a new ruthenium oxide based thick film resistor whose resistance is independent of the contact area of the conductor to the resistor. Such a resistor can then be combined with a low cost silver conductor.
T. Inokuma, Yoshiaki Taketa, Miyoshi Haradome   +2 more
doaj   +1 more source

(R)-3-(tert-Butoxycarbonyl)-5-methyl-1,2,3-oxathiazolidine 2,2-dioxide

IUCrData, 2017
The chiral title compound, C8H15NO5S, was obtained by cyclization of (R)-1-(tert-butoxycarbonylamino)-2-propanol with thionyl chloride and subsequent oxidation with sodium metaperiodate/ruthenium(IV) oxide.
Gerhard Laus, Klaus Wurst, Sven Nerdinger, Frank Richter, Herwig Schottenberger   +4 more
doaj   +1 more source

Three‐Dimensional Anomalous Hall Sensing Enabled By Spin–Orbit Torque Driven Domain Reconfiguration In Chiral Multilayers

Advanced Functional Materials, EarlyView.
A three‐dimensional magnetic field sensor is realized in chiral W/CoFeB/MgO multilayers, where spin–orbit torques reversibly reconfigure homochiral stripe domains. The symmetry of the torque enables offset‐free in‐plane sensing, while the reproducible domain reconfiguration extends the linear out‐of‐plane range. An anomalous Hall readout delivers large‐
Sabri Koraltan, Rahul Gupta, Reshma Peremadathil Pradeep, Fabian Kammerbauer, Iryna Kononenko, Klemens Prügl, Michael Kirsch, Bernd Aichner, Santiago Helbig, Florian Bruckner, Claas Abert, Andrada Oana Mandru, Armin Satz, Gerhard Jakob, Hans Josef Hug, Mathias Kläui, Dieter Suess   +16 more
wiley   +1 more source