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Functionalized ZnO/ZnO2 n-N straddling heterostructure achieved by oxygen plasma bombardment for highly selective methane sensing

30.09.2015 | Sugato Ghosh; Raghunath Bhattacharyay; Hiranmay Saha; Chirosree Roy Chaudhuri; Nillohit M, Physical Chemistry Chemical Physics, 2015

Metal oxide semiconductors have been extensively used as reducing gas sensors with major limitations regarding selectivity and operating temperature which is relatively higher for most of the cases making the device unusable in some critical situations. Higher operating temperature also ...


Thermodynamics of the hydration equilibrium derived from the luminescence spectra of the solid state for the case of the Eu–EDTA system

30.09.2015 | R. Janicki; A. Mondry, Physical Chemistry Chemical Physics, 2015

The luminescence properties of two compounds, [C(NH2)3][Eu(EDTA)(H2O)3] (I) and [C(NH2)3]2[Yb0.97Eu0.03(EDTA)(H2O)2]ClO4·6H2O (II), were determined. The weighted sum of luminescence spectra of I and II was used to reproduce the spectra of the Eu–EDTA system in aqueous solution in the temperature ...


Ultra-low temperature epitaxial growth of lithium ferrite thin films by high-pressure sputtering

30.09.2015 | Ruyi Zhang; Ming Liu; Lu Lu; Shao-Bo MI; Hong Wang, CrystEngComm, 2015

LiFe5O8 epitaxial thin films with high crystalline quality have been successfully synthesized on (001) MgAl2O4 substrates even at an ultra-low working temperature of 200℃ by using a high-pressure radio-frequency sputtering system. Better crystalline qualities of the epitaxial LiFe5O8 films can be ...


A Terbium Rich Orthoborate LiSrTb2(BO3)3 and its analogues

30.09.2015 | Pengyun Chen; Mingjun Xia; R.K. Li, New Journal of Chemistry, 2015

A terbium rich orthoborate, LiSrTb2(BO3)3 has been successfully synthesized by solid state reaction and crystallized from high temperature flux. Single crystal X-ray diffraction results show that LiSrTb2(BO3)3 possesses P3 @#x0305;m1 space group, with cell parameters of a = 10.3845(4) Å, c = ...


A Low Temperature Molten Salt Process for Aluminothermic reduction of Silicon Oxides to Crystalline Si for Li-ion Batteries

30.09.2015 | ning Lin; Ying Han; Jie Zhou; Kailong Zhang; Tianjun Xu; Yongchun Zhu; Yitai Qian, Energy & Environmental Science, 2015

A low tempertaure molten salt process is developed to prepare crystalline Si nanoparticles through the reduction of micro-sized high silicon zeolite by metallic Al (or Mg) in molten AlCl3. The reaction can be initiated at 200 oC, and the yield is about 40%. As the reaction temperqature increases ...


Chemical Vapor Generation from Room Temperature Ionic Liquid Using Solid Reductant: Determination of Trace Hg, As and Sb by Atomic Fluorescence Spectrometry

30.09.2015 | Xiaodong Wen; Ying Gao; Peng Wu; Zhiqiang Tan; Chengbin Zheng; Xiandeng Hou, Journal of Analytical Atomic Spectrometry, 2015

Generation of volatile hydrides and elemental mercury was accomplished in non-aqueous media by using solid reductant of lithium aluminium tetrahydride (LiAlH4), stannous chloride dehydrate (SnCl2) or tetrahydroborate (THB) as a derivation reagent. Room temperature ionic liquid (RTIL) was used as ...


Intragel Photoreduction of Aryl Halides by Green-to-Blue Upconversion under Aerobic Conditions

30.09.2015 | Marleen Haering; Raúl Pérez-Ruiz; Axel Jacobi von Wangelin; David Diaz, Chemical Communication, 2015

The first proof of concept for the application of intragel green-to-blue photon upconversion to a chemical reaction is reported. The developed method allows the photoreduction of aryl halides at room temperature under aerobic conditions.


Sequential deposition of block copolymer thin films and formation of lamellar heterolattices by electrospray deposition

27.09.2015 | Youngwoo Choo, Hanqiong Hu, Kristof Toth, Chinedum O. Osuji, Journal of Polymer Science Part B: Polymer Physics, 2015

ABSTRACT The delivery of sub‐micron droplets of dilute polymer solutions to a heated substrate by electrospray atomization enabled precisely controlled and continuous deposition, or growth, of block copolymer thin films. It also provided, in principle, the ability to fabricate heterolattice ...


The marine carbonate system of the Arctic Ocean: Assessment of internal consistency and sampling considerations, summer 2010

27.09.2015 | Author(s): Baoshan Chen, Wei-Jun Cai, Liqi Chen, Marine Chemistry, 2015

Publication date: 20 November 2015 Source:Marine Chemistry, Volume 176 Author(s): Baoshan Chen, Wei-Jun Cai, Liqi Chen The Arctic Ocean has experienced tremendous changes in recent years. To evaluate temporal and spatial variations of the marine carbonate system, a rigorous evaluation ...


Direct solid analysis for the determination of Mn, Ni, Rb and Sr in powdered stimulant plants using high-resolution continuum source atomic absorption spectrometry followed by chemometric classification based on elemental composition, polyphenol content and antioxidant activity

27.09.2015 | Author(s): Jefferson S. de Gois, Tarcísio S. Almeida, Rodolpho M. de Andrade, Isabela M. Toaldo, Marilde T. ..., Microchemical Journal, 2015

Publication date: January 2016 Source:Microchemical Journal, Volume 124 Author(s): Jefferson S. de Gois, Tarcísio S. Almeida, Rodolpho M. de Andrade, Isabela M. Toaldo, Marilde T. Bordignon-Luiz, Daniel L.G. Borges In this work, a simple, fast and sensitive method for the ...


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