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2.236 Aktuelle Fachpublikationen zum Thema temperature

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Mechanism of hydrogen treatment in KTiOPO4 crystals at high temperature: Experimental and first-principles studies

02.03.2015 | Yang Zhang; Yanhua Leng; Jian Liu; Nianjing Ji; Xiulan Duan; Jing Li; Xian Zhao; jiyang wang; Huaidong Jiang, CrystEngComm, 2015

Hydrogen annealing experiments on KTiOPO4 (KTP) crystals with different temperatures, times and hydrogen concentrations were conducted in an atmospheric furnace. Theoretically, in order to analyze the reaction mechanisms of KTP under high temperature hydrogen annealing, the electronic structure, ...

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Sensors, Vol. 15, Pages 4749-4765: Development of a Hydrogen Gas Sensor Using a Double Saw Resonator System at Room Temperature

26.02.2015 | Yunusa, Zainab ; Hamidon, Mohd Nizar; Ismail, Alyani ; Isa, Maryam Mohd; Yaacob, Mohd Hanif; Rahmanian, Saeed ; Ibra ..., Sensors, 2015

A double SAW resonator system was developed as a novel method for gas sensing applications. The proposed system was investigated for hydrogen sensing. Commercial Surface Acoustic Wave (SAW) resonators with resonance frequencies of 433.92 MHz and 433.42 MHz were employed in the double SAW ...

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Integration of individual TiO2 nanotube on the chip: Nanodevice for hydrogen sensing

25.02.2015 | Mihail Enachi, Oleg Lupan, Tudor Braniste, Andrei Sarua, Lee Chow, Yogendra K. Mishra, Dawit Gedamu, Rainer Adelung, ..., physica status solidi (RRL) - Rapid Research Letters, 2015

Titania (TiO2) exists in several phases possessing different physical properties. In view of this fact, we report on three types of hydrogen sensors based on individual TiO2 nanotubes (NTs) with three different structures consisting of amorphous, anatase or anatase/rutile mixed phases. Different ...

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Ni-Pt nanoparticles growing on metal organic frameworks (MIL-96) with enhanced catalytic activity for hydrogen generation from hydrazine at room temperature

25.02.2015 | wei luo; Jun Su; Ping Cai; Gongzhen Cheng; Xiaoqiong Du; Wen Lan, Dalton Transactions, 2015

Well-dispersed bimetallic Ni-Pt nanoparticles (NPs) with different compositions have been successfully growing on the MIL-96 by a simple liquid impregnation method using NaBH4 as the reducing agent. The powder X-ray diffraction, transmission electron microscopy, energy-dispersive X-ray ...

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Self‐assembled UCST‐Type Micelles as Potential Drug Carriers for Cancer Therapeutics

23.02.2015 | Gang Huang, Hao Li, Shi‐Ting Feng, Xiaoqiong Li, Guoquan Tong, Jie Liu, Changyun Quan, Qing Jiang, Chao Zhang, Ziping Li, Macromolecular Chemistry and Physics, 2015

A methoxy‐poly(ethylene glycol)‐block‐poly(acrylamide‐co‐acrylonitrile) (mPEG‐b‐P(AAm‐co‐AN)) amphiphilic copolymer exhibiting upper critical solution temperature (UCST) behavior is synthesized, and micelles from this copolymer are fabricated. It is found that the thermal responses of these ...

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Optical sensor for hydrogen gas based on a palladium-coated polymer microresonator

22.02.2015 | Author(s): Mustafa Eryürek , Yasin Karadag , Nevin Taşaltın , Necmettin Kılınç , Alper Kiraz, Sensors and Actuators B: Chemical, 2015

Publication date: June 2015 Source:Sensors and Actuators B: Chemical, Volume 212 Author(s): Mustafa Eryürek , Yasin Karadag , Nevin Taşaltın , Necmettin Kılınç , Alper Kiraz We report an integrated optical sensor of hydrogen (H2) gas employing an SU-8 polymer microdisk resonator coated ...

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Single Chain Structure of a Poly(N-isopropylacrylamide) Surfactant in Water

20.02.2015 | Lauren J. Abbott; Ashley K. Tucker; Mark J. Stevens, Journal of Physical Chemistry B, 2015

We present atomistic simulations of a single PNIPAM–alkyl copolymer surfactant in aqueous solution at temperatures below and above the LCST of PNIPAM. We compare properties of the surfactant with pure PNIPAM oligomers of similar lengths, such as the radius of gyration and solvent accessible ...

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Electronic Structure of Low‐Temperature Solution‐Processed Amorphous Metal Oxide Semiconductors for Thin‐Film Transistor Applications

18.02.2015 | Josephine Socratous, Kulbinder K. Banger, Yana Vaynzof, Aditya Sadhanala, Adam D. Brown, Alessandro Sepe, Ullrich St ..., Advanced Functional Materials, 2015

The electronic structure of low temperature, solution‐processed indium–zinc oxide thin‐film transistors is complex and remains insufficiently understood. As commonly observed, high device performance with mobility >1 cm2 V−1 s−1 is achievable after annealing in air above typically 250 °C but ...

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Enhanced thermal stability of biomedical thermoplastic polyurethane with the addition of cellulose nanocrystals

18.02.2015 | Jen‐Chieh Liu, Darren J. Martin, Robert J. Moon, Jeffrey P. Youngblood, Journal of Applied Polymer Science, 2015

ABSTRACT Freeze‐dried cellulose nanocrystals (CNCs) were dispersed in the thermoplastic polyurethane [Pellethane 2363‐55D (P55D)] by a solvent casting method to fabricate CNC‐reinforced nanocomposites. This study demonstrated that the addition of small amounts (1–5 wt %) of CNCs to P55D ...

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CO2 Hydrogenation Catalyzed by Iridium Complexes with a Proton-Responsive Ligand

18.02.2015 | Naoya Onishi; Shaoan Xu; Yuichi Manaka; Yuki Suna; Wan-Hui Wang; James T. Muckerman; Etsuko Fujita; Yuichiro Himeda, Inorganic Chemistry, 2015

The catalytic cycle for the production of formic acid by CO2 hydrogenation and the reverse reaction have received renewed attention because they are viewed as offering a viable scheme for hydrogen storage and release. In this Forum Article, CO2 hydrogenation catalyzed by iridium complexes bearing ...

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