Fast and real-time observation of hydrogen absorption kinetics for palladium nanoparticles

Daiju Matsumura; Yuka Okajima; Yasuo Nishihata

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Fast and real-time observation of hydrogen absorption kinetics for palladium nanoparticles

机译：钯纳米粒子氢吸收动力学的快速实时观察

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Structural change of Pd nanoparticles on aluminum oxide during hydrogen absorption reaction was directly observed by X-ray absorption fine structure with dispersive optics. Hydrogen pressure depen?dence of the expansion of the interatomic distance for Pd-Pd bonding in Pd nanoparticles was investigated by real-time-resolved and in situ observation with a rate of 50 Hz at room temperature. It has been revealed that the Pd nanoparticles show strong hydrogen pressure dependence of the reaction rate and the saturated interatomic distance for the hydrogen absorption. Determined reaction order implies that the rate of the hydrogen absorption reaction is limited by the surface dissociative adsorption step.

机译：利用色散光学X射线吸收精细结构直接观察了氢吸收反应过程中氧化铝上Pd纳米粒子的结构变化。通过实时分辨和在室温下以50 Hz的频率进行原位观察，研究了Pd纳米粒子中Pd-Pd键之间原子间距扩展的氢压力依赖性。已经发现，Pd纳米颗粒对反应速率和氢吸收的饱和原子间距离表现出强烈的氢压力依赖性。所确定的反应顺序暗示着氢吸收反应的速率受到表面解离吸附步骤的限制。

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《Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics》 |2011年第2suppla期|共4页
作者
Daiju Matsumura; Yuka Okajima; Yasuo Nishihata;
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正文语种 eng
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Nanostructured materials; Gas-solid reactions; Kinetics; X-ray and gamma-ray spectroscopies;

机译：纳米结构材料;气固反应;运动学;X射线和γ射线光谱;

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1. Fast and real-time observation of hydrogen absorption kinetics for palladium nanoparticles [J] . Daiju Matsumura, Yuka Okajima, Yasuo Nishihata Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2011,第2Suppla期

机译：钯纳米粒子氢吸收动力学的快速实时观察
2. Operando X-ray absorption spectra and mass spectrometry data during hydrogenation of ethylene over palladium nanoparticles [J] . Aram L. Bugaev, Alexander A. Guda, Ilia A. Pankin, Data in Brief . 2019,第1期

机译：乙烯在钯纳米粒子上氢化期间的Operando X射线吸收光谱和质谱数据
3. Characteristics of the absorption and the emission of hydrogen in palladium nanoparticles encapsulated into graphite at 1.0 MPa hydrogen pressure [J] . Nobumitsu Hirai, Masayuki Takashima, Toshihiro Tanaka, Science and Technology of Advanced Materials . 2004,第1a2期

机译：氢气压力为1.0 MPa时包裹在石墨中的钯纳米颗粒中氢的吸收和释放
4. Real-time and Direct Observation of Hydrogen Absorption Dynamics for Pd Nanoparticles [C] . Daiju Matsumura, Yuka Okajima, Yasuo Nishihata Materials Research Society Symposium . 2010

机译：Pd纳米粒子氢吸收动力学的实时和直接观察
5. Shape-controlled palladium nanoparticles in catalytic hydrogenations. [D] . Ma, Ran. 2011

机译：催化加氢中形状可控的钯纳米粒子。
6. Operando X-ray absorption spectra and mass spectrometry data during hydrogenation of ethylene over palladium nanoparticles [O] . Aram L. Bugaev, Alexander A. Guda, Ilia A. Pankin, 2019

机译：钯纳米颗粒上乙烯加氢过程中的Operando X射线吸收光谱和质谱数据
7. Characteristics of the absorption and the emission of hydrogen in palladium nanoparticles encapsulated into graphite at 1.0 MPa hydrogen pressure [O] . Hirai Nobumitsu, Takashima Masayuki, Tanaka Toshihiro, 2017

机译：在1.0 MPa氢气压力下封装在石墨中的钯纳米粒子中氢的吸收和释放特性。

Fast and real-time observation of hydrogen absorption kinetics for palladium nanoparticles

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