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2.610 Aktuelle Fachpublikationen zum Thema temperature

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In-Situ Synthesis of Cotton-Derived Ni/C Catalysts with Controllable Structure and Enhanced Catalytic Performance

07.10.2015 | Peng Zhang; Zongbin Zhao; Boris Dyatkin; Chang Liu; Jieshan QIU, Green Chemistry, 2015

Owing to oxygen-driven hydrophilicity of the surface, cotton can absorb large amounts of aqueous solutions even at room temperature. We designed a facile two-step synthesis strategy that takes advantage of this property for in-situ fabrication of Ni/C catalysts with well-dispersed Ni particles on ...


Structural and magnetic properties of the new brownmillerite oxides La1−xNaxSrMn2O5+δ (0.1 ≤x≤ 0.3)

04.10.2015 | Author(s): M. Mohamed, N. Rammeh, F. Mokhtar, A. Kabadou, A. Van der Lee, Materials Chemistry and Physics, 2015

Publication date: Available online 28 September 2015 Source:Materials Chemistry and Physics Author(s): M. Mohamed, N. Rammeh, F. Mokhtar, A. Kabadou, A. Van der Lee Na-doped brownmillerite oxides La1−xNaxSrMn2O5 (x=0, 0.1, 0.2 and 0.3) were synthesized by the solid state ...


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 ...


Correlation among Oxygen Vacancies, Protonic Defects, and the Acceptor Dopant in Sc-Doped BaZrO3 Studied by 45Sc Nuclear Magnetic Resonance

30.09.2015 | Itaru Oikawa; Hitoshi Takamura, Chemistry of Materials, 2015

The distribution of protons and oxygen vacancies at room temperature at different proton concentrations in 10 mol % Sc-doped BaZrO3 was investigated to clarify the influence of proton concentration and oxygen vacancies in the trapping of protons caused by the acceptor dopant. To enhance proton ...



29.09.2015 | Emily G. Mackay; Christopher G. Newton; Henry Toombs-Ruane; Erik Jan Lindeboom; Thomas Fallon; Anthony C. Willis; Mi ..., Journal of the American Chemical Society, 2015

The [n]radialenes are a unique family of fundamental [n]-membered carbocyclic structures with radiating alkenes, which have attracted significant synthetic and theoretical attention. Whereas [3]-, [4]-, and [6]radialenes have been prepared and studied, all efforts to synthesize the five-membered ...


Generation of reactive oxidative species from thermal treatment of sugar solutions

27.09.2015 | Author(s): Qingyang Wang, Erwann Durand, Ryan J. Elias, Rohan V. Tikekar, Food Chemistry, 2015

Publication date: 1 April 2016 Source:Food Chemistry, Volume 196 Author(s): Qingyang Wang, Erwann Durand, Ryan J. Elias, Rohan V. Tikekar Sugars, prominently fructose, have been shown to accelerate the degradation of food components during thermal treatment. Yet, the mechanism by ...


Phase Relationship and Ionic Conductivity in Na–SrSiO3 Ionic Conductor

24.09.2015 | Youngseok Jee, Xuan Zhao, Xueling Lei, Kevin Huang, Journal of the American Ceramic Society, 2015

The Na–SrSiO3 as a potential high‐conductivity ionic conductor for intermediate temperature solid oxide electrochemical cells (SOECs) has drawn much attention recently. Some of these studies questioned the feasibility of Na doping and therefore the creation of oxygen vacancies, while others ...


Microstructure and Electrical Properties of Nonstoichiometric 0.94(Na0.5Bi0.5+x)TiO3–0.06BaTiO3 Lead‐Free Ceramics

24.09.2015 | Xiao‐Shuang Qiao, Xiao‐Ming Chen, Han‐Li Lian, Wei‐Ting Chen, Jian‐Ping Zhou, Peng Liu, Journal of the American Ceramic Society, 2015

0.94(Na0.5Bi0.5+x)TiO3–0.06BaTiO3 (x=−0.04, 0, 0.02; named NB0.46T‐6BT, NB0.50T‐6BT, NB0.52T‐6BT, respectively) lead‐free piezoelectric ceramics were prepared via the solid‐state reaction method. Effects of Bi3+ nonstoichiometry on microstructure, dielectric, ferroelectric, and piezoelectric ...


Sulfur Transformation during Hydrothermal Dewatering of Low Rank Coal

24.09.2015 | Junhong Wu; Jianzhong Liu; Shao Yuan; Xu Zhang; Yan Liu; Zhihua Wang; Junhu Zhou, Energy & Fuels, 2015

The presence of sulfur in coals has raised serious environmental issues, which are obstacles to large-scale utilization of coals. Hydrothermal dewatering (HTD) is a promising upgrading method for low-rank coals (LRCs) to significantly remove oxygen-containing groups and irreversibly decrease the ...


Alkaline partial wet oxidation of lignin for production of carboxylic acids

22.09.2015 | Abayneh Getachew Demesa, Arto Laari, Ilkka Turunen, Mika Sillanpää, Chemical Engineering & Technology, 2015

Abstract Production of carboxylic acids by partial wet oxidation of alkali lignin was studied experimentally. The factors influencing the different types of products, their yields and concentrations were investigated. Formic, acetic, succinic, oxalic and glutaconic acids were the main ...


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