50 research outputs found

    Preparation of NiCe Mixed Oxides for Catalytic Decomposition of N<sub>2</sub>O

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    The catalytic N<sub>2</sub>O decomposition was investigated over a series of NiCe mixed oxides. Characterizations of XRD, N<sub>2</sub>-adsorption, SEM, XPS, and H<sub>2</sub>-TPR were applied to correlate their properties with the corresponding catalytic performance. The catalyst Ni90Ce10 prepared by citrate acid method exhibited the highest catalytic activity among the mixed oxides, which could completely decompose N<sub>2</sub>O at 400 °C in the presence of oxygen. The introduction of CeO<sub>2</sub> could prevent the agglomeration of NiO and preserve high surface area. A strong interaction between NiO and CeO<sub>2</sub> was observed in the mixed oxides; the interaction enhanced oxygen mobility and resisted the inhibition of O<sub>2</sub>

    qPCR analysis of bivalve larvae feeding preferences when grazing on mixed microalgal diets - Fig 4

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    <p>Standard curve of each qPCR primer produced using 10-fold serial dilutions of plasmids containing 18S rDNA sequences of <i>C</i>. <i>calcitrans</i> (A), <i>I</i>. <i>galbana</i> (B), <i>P</i>. <i>helgolandica</i> (C) and <i>N</i>. <i>oculata</i> (D) as a standard template and values of slope, intercept, correlation (<i>R</i><sup>2</sup>) and PCR efficiencies.</p
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