Search for dissertations about: "Peng Liu"

Showing result 1 - 5 of 64 swedish dissertations containing the words Peng Liu.

  2. 1. Adsorption behavior of heavy metal ions from aqueous medium on nanocellulose

    Author : Peng Liu; Lars Wågberg; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Trä och bionanokompositer; Wood and Bionanocomposites;

    Abstract : The aim of this work was to explore the potential of nanocellulose, nanocellulose derivatives and nanochitin to remove metal ions from contaminated water. The above nano-polysaccharides were of interest in water purification technologies due to their high surface area and versatile surface chemistry. READ MORE

  4. 2. Nanopolysaccharides for adsorption of heavy metal ions from water

    Author : Peng Liu; Qi Zhou; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Trä och bionanokompositer; Wood and Bionanocomposites;

    Abstract : With population expansion and industrialization, heavy metal has become one of the biggest and most toxic water pollutants, which is a serious problem for human society today. The aim of this work is to explore the potential of nanopolysaccharides including nanocellulose and nanochitin to remove metal ions from contaminated water. READ MORE

  5. 3. Novel organic sensitizers and hole transport materials for efficient solid-state photovoltaic devices

    Author : Peng Liu; Lars Kloo; Udo Bach; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; organic sensitizers; ssDSCs; perovskite solar cell; hole transport materials; cross-linked polymeric sulfur; Kemi; Chemistry;

    Abstract : State-of-art solid-state photovoltaic devices, such as solid-state dye sensitized solar cells (ssDSSCs) and perovskite solar cells have attracted significant attention due to their high efficiency and potential low-cost manufacture. However, there are still challenges that limit the application up-scaling.. READ MORE

  6. 4. Oxidation behaviour of MCrAlX coatings : effect of surface treatment and an Al-activity based life criterion

    Author : Pimin Zhang; Ru Lin Peng; Xin-Hai Li; Sten Johansson; Fang Liu; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : MCrAlY coatings (M=Ni and/or Co) have been widely used for the protection of superalloy components against oxidation and hot corrosion in the hot sections of gas turbines. The drive to improve engine combustion efficiency while reducing emissions by increasing the operation temperature brings a big challenge for coating design. READ MORE

  7. 5. MOSFET enabled low-voltage high-current DC traction drive : a pioneering concept for battery electric vehicles

    Author : Stefan Haller; Bengt Oelmann; Peng Cheng; Yujing Liu; Mittuniversitetet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : .... READ MORE