体积法测量储氢量的状态方程研究

体积法是表征储氢量最主要的技术手段之一，状态方程能否真实描述氢气的p-V-T特性是影响测量精度的关键因素。本文基于芶清泉的物理思想，提出了状态方程新模型。从碳气凝胶储氢量测量过程中得到的实验数据出发，分别应用理想气体状态方程、范德华耳斯方程以及状态方程新模型计算间苯二酚-甲醛碳气凝胶在不同温度、压力下的储氢吸附量，分析了造成结果差别的物理原因。结果显示，利用新的气体状态方程，可明显改善体积法测量结果的可信度。

Study on State Equation for Hydrogen Storage Measurement by Volumetric Method

Volumetric measurement technique is one of the most popular methods for determining the amount of hydrogen storage. A new state equation was established which extended the limitations from the ideal gas state equation, the van der Waals equation and the Gou equation. The new state equation was then employed to describe the p-V-T character of hydrogen and investigate the adsorption quantity of hydrogen storage in resorcin-formaldehyde aerogel under different temperatures and pressures. The new equation was used to describe the density of hydrogen under different temperatures and pressures. The results are in good agreement with the experimental data. The differences arising from various underlying physics were carefully analyzed.