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V. L. E. Simonsen L. Nørskov A. Hagen K. Kammer Hansen 《Journal of Solid State Electrochemistry》2009,13(10):1529-1534
The series La2 − x
Sr
x
NiO4 (x = 0.0, 0.05, 0.15, 0.25, 0.35, and 1.0) was tested for functionality as electrode materials for direct electrochemical reduction
of NO. The materials were tested using cyclic voltammetry in 1% NO and 10% O2 in Ar on a cone-shaped electrode. The best materials for the electrochemical reduction of NO are La2NiO4 and LaSrNiO4, which have current densities for NO reduction 1.82 and 7.09 times higher, respectively, than for O2 at 400 °C. Increasing the temperature decreased the ability to reduce NO before O2 while the activity increased. The adsorbed species during direct decomposition was attempted, clarified using X-ray absorption
near-edge structure experiments and thermogravimetry, but no conclusive results were obtained. 相似文献
2.
Vibe L. E. Simonsen Linda Nørskov Kent Kammer Hansen 《Journal of Solid State Electrochemistry》2008,12(12):1573-1577
A series of La2 − x
Sr
x
CuO4 (x = 0.0, 0.05, 0.15, 0.25 and 0.35) compounds was investigated for the use of direct electrochemical reduction of NO in an
all-solid-state electrochemical cell. The materials were investigated using cyclic voltammetry in 1% NO in Ar and 10% O2 in Ar. The most selective electrode material was La2CuO4, which had an activity of NO reduction that was 6.8 times higher than that of O2 at 400 °C. With increasing temperature, activity increased while selectivity decreased. Additionally, conductivity measurements
were carried out, and the materials show metallic conductivity behavior which follows an adiabatic small polaron hopping mechanism. 相似文献
3.
锥形激光等离子体中Compton 散射对电子的加速 总被引:8,自引:4,他引:4
应用相对论性电子与光子非弹性碰撞模型和经典相对论电动力学理论,结合锥形飞秒强激光等离子体中的光场特性和静电场能,分析、计算了入射的高能电子束与等离子体中的光子发生多光子非线性Compton散射时对电子的加速效应,发现等离子体中的光场会引起电子加速能量的振荡;等离子体中的静电场降低电子的加速效应。用高能电子束与锥形飞秒强激光等离子体中的光子发生双光子非线性Compton散射,是加速电子最为理想的情况。 相似文献
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