Addressing challenges with evaluating hydrogen-selective membrane performance by quadrupole mass spectrometry

IF 1.9 3区 化学 Q3 BIOCHEMICAL RESEARCH METHODS
Ardita Kurtishaj, Marko Žumer, Vincenc Nemanič, Uroš Cvelbar
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引用次数: 0

Abstract

Hydrogen separation using nanostructured membranes has gained research attention because of its potential to produce high-purity hydrogen by separating gases at the molecular level. Quadrupole mass spectrometry (QMS) is one method to evaluate these membranes' effectiveness in separating hydrogen from gas mixtures. However, quantifying gases in a mixture with QMS is challenging, especially when heavier gas ions interfere with a light gas ion, resulting in lower quantification accuracy. This study addresses this challenge by presenting a detailed calibration procedure that significantly improves hydrogen quantification accuracy up to a factor of 2.5. CO and CO2 were chosen as interfering gases because they are commonly released in conventional hydrogen production processes. By carefully evaluating the performance of these membranes, new opportunities for hydrogen separation may be realized.

Abstract Image

利用四极杆质谱法评估氢选择性膜性能的挑战
使用纳米结构膜进行氢气分离的研究备受关注,因为它具有通过在分子水平分离气体来生产高纯度氢气的潜力。四极质谱法(QMS)是评估这些膜从气体混合物中分离氢的有效性的一种方法。然而,使用 QMS 对混合物中的气体进行定量具有挑战性,尤其是当较重的气体离子干扰较轻的气体离子时,会导致定量精度降低。本研究针对这一难题,提出了一个详细的校准程序,可将氢气的定量精度显著提高 2.5 倍。之所以选择一氧化碳和二氧化碳作为干扰气体,是因为它们通常会在传统的制氢过程中释放出来。通过仔细评估这些膜的性能,可以实现氢气分离的新机遇。
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来源期刊
Journal of Mass Spectrometry
Journal of Mass Spectrometry 化学-光谱学
CiteScore
5.10
自引率
0.00%
发文量
84
审稿时长
1.5 months
期刊介绍: The Journal of Mass Spectrometry publishes papers on a broad range of topics of interest to scientists working in both fundamental and applied areas involving the study of gaseous ions. The aim of JMS is to serve the scientific community with information provided and arranged to help senior investigators to better stay abreast of new discoveries and studies in their own field, to make them aware of events and developments in associated fields, and to provide students and newcomers the basic tools with which to learn fundamental and applied aspects of mass spectrometry.
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