Sökning: "Anions effect"

Visar resultat 1 - 5 av 27 avhandlingar innehållade orden Anions effect.

  1. 1. Anions and Additives for Lithium Battery Electrolytes

    Författare :Johan Scheers; [2008]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; lithium batteries; additives; Raman spectroscopy; anions; ab initio; electrolytes; ion pairs;

    Sammanfattning : Based on the atomic postulate, which is now more than 2400 years old, scientists have developed very advanced tools for studying the material world. With the potential realized with modern computers, more and more sophisticated methods are available for predicting real material properties, even from simple theoretical model systems. LÄS MER

  2. 2. Synthesis, Characterization and Applications of Metal Oxide Nanostructures

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Mushtaque Hussain; Magnus Willander; Omer Nour; Vladimir V. Mitin; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Aqueous chemical growth method; ZnO nanorods; Oxygen plasma treatment; Piezoelectric and mechanical properties; Atomic force microscope; Nanoindentation; Co3O4 nanostructures; Anions effect; pH sensor; NiCo2O4 nanostructures; Glucose sensor;

    Sammanfattning : The main objective of nanotechnology is to build self-powered nanosystems that are ultrasmall in size, exhibit super sensitivity, extraordinary multi functionality, and extremely low power consumption. As we all know that 21st century has brought two most important challenges for us. One is energy shortage and the other is global warming. LÄS MER

  3. 3. The use of Fenton chemistry for reducing the refining energy during TMP production the effect of free ferrous and free or chelated ferric ions

    Detta är en avhandling från Sundsvall : Mid Sweden University

    Författare :Karin Walter; Per Engstrand; Magnus Paulsson; [2013]

    Sammanfattning : The potential of using acid hydrogen peroxide under Fenton conditions to lowerthe electrical energy consumed during the production of Black spruce (Piceamariana) thermomechanical pulp (TMP) was investigated in pilot scale. Thechemical system, which consisted of ferrous sulphate, hydrogen peroxide andoptionally an enhancer (such as a chelating agent), was evaluated as an inter-stagetreatment. LÄS MER

  4. 4. The rule of hydrogen and rare earth metals in the formation of protective metal-oxides

    Detta är en avhandling från Stockholm : Materialvetenskap

    Författare :Bent N. Tveten; [2000]
    Nyckelord :chromium; high-temperature corrosion; oxide growth; scale adherence; hydrogen; yttria; REM; reactive element effect; gas phase analysis;

    Sammanfattning : The effects of hydrogen and rare earth metal (REM) additionson the oxidation behavior of metals and alloys that formchromia, alumina and zirconia in 20 mbar O2and/or H2O have been investigated at elevated temperatures.The metal-gas reactions were studied by the use of isotopicallylabeled gas in combination with mass spectrometry and bymeasuring changes in the total pressure in a closed reactionchamber. LÄS MER

  5. 5. Efficient Carbohydrate Synthesis By Intra- and Supramolecular Control

    Detta är en avhandling från Stockholm : KTH

    Författare :Hai Dong; Olof Ramström; Ulf Nilsson; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Carbohydrate Chemistry; Supramolecular Control; Ambident Reactivity; NATURAL SCIENCES Chemistry Organic chemistry Bioorganic chemistry; NATURVETENSKAP Kemi Organisk kemi Bioorganisk kemi;

    Sammanfattning : The Lattrell-Dax method of nitrite-mediated substitution of carbohydrate triflates is an efficient method to generate structures of inverse configuration. In this study, the effects of the neighboring group on the Lattrell-Dax inversion were explored. LÄS MER