Validation of a Sapphire Gas-Pressure Cell for Real-Time In Situ Neutron Diffraction Studies of Hydrogenation Reactions

Raphael Finger; Thomas C. Hansen; Holger Kohlmann

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Validation of a Sapphire Gas-Pressure Cell for Real-Time In Situ Neutron Diffraction Studies of Hydrogenation Reactions

机译：验证蓝宝石气压电池的实时原位中子衍射研究的氢化反应研究

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A gas-pressure cell, based on a leuco-sapphire single-crystal, serving as a pressure vessel and sample holder, is presented for real time in situ studies of solid-gas hydrogenation reactions. A stainless steel corpus, coated with neutron absorbing varnish, allows alignment for the single-crystal sample holder for minimizing contributions to the diffraction pattern. Openings in the corpus enable neutron scattering as well as contactless temperature surveillance and laser heating. The gas-pressure cell is validated via the deuteration of palladium powder, giving reliable neutron diffraction data at the high-intensity diffractometer D20 at the Institut Laue-Langevin (ILL), Grenoble, France. It was tested up to 15.0 MPa of hydrogen pressure at room temperature, 718 K at ambient pressure and 584 K at 9.5 MPa of hydrogen pressure.

机译：基于用作压力容器和样品架的Leuco-Sapphire单晶的气体压力电池用于实时研究固体气体氢化反应的实时。涂有中子吸收清漆的不锈钢胶囊允许对准单晶样品支架进行对准，以使衍射图案的贡献最小化。语料库中的开口使中子散射以及非接触式温度监测和激光加热。气体压力电池通过钯粉末的氘进行验证，在Institut Laue-Langevin（Ill），Grenoble，法国的高强度衍射仪D20处提供可靠的中子衍射数据。在室温下在室温下测试高达15.0MPa的氢气压力，在环境压力下为718K，584 k为9.5MPa的氢气压力。

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《Quantum Beam Science》 |2021年第3期|共10页
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Raphael Finger; Thomas C. Hansen; Holger Kohlmann;
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中图分类物理学;
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in situ neutron diffractiongas-pressure cellhydrogenationreaction pathways;

机译：原位中子衍生物 - 压力细胞氢化途径;

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Validation of a Sapphire Gas-Pressure Cell for Real-Time In Situ Neutron Diffraction Studies of Hydrogenation Reactions

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