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Tracking Compression Changes in an Aqueous Electrolyte for Real-Time H2 and O2 Gas Evolution Quantification during Total Water Splitting Using BARDS
ACS Applied Energy Materials ( IF 6.4 ) Pub Date : 2020-01-17 00:00:00 , DOI: 10.1021/acsaem.9b02436
Aaron Kang 1 , Alanood Alkhraije 1 , Seán McSweeney 2 , Anas Alfarsi 1, 3 , Rizwan Ahmed 1, 3 , Jacob Krüse 4 , Colm O’Dwyer 1, 5, 6, 7 , Dara Fitzpatrick 1, 3, 6
Affiliation  

Hydrogen fuel cell technology has the potential for integration with renewable energy sources to produce electricity without the need for fossil fuels. Efforts are being made in producing cheap and effective electrodes from new materials to make hydrogen production more efficient. Gas evolution, in all cases, requires an accurate analysis of electrochemical behavior of electrodes to quantify efficiency, improvement, or stability. Knowing the exact gas volume by any method in real time during electrochemical water splitting is urgently needed. Taking inspiration from the existing technique broadband acoustic resonance dissolution spectroscopy (BARDS), we demonstrate an original approach to continuously track the electrochemical water splitting via the gas volume evolution from hydrogen evolution reactions (HER) and oxygen evolution reactions (OER) processes. The technique may be used to unravel the true features of new electrode materials that evolve hydrogen and correlate material electrochemistry to the true gas volume evolved in real time.

中文翻译:

使用BARDS进行总分水过程中的实时H 2和O 2气体析出定量跟踪水电解质中的压缩变化

氢燃料电池技术具有与可再生能源整合的潜力,无需化石燃料即可发电。人们正在努力用新材料生产廉价而有效的电极,以提高氢气的生产效率。在所有情况下,气体逸出都需要对电极的电化学行为进行准确的分析,以量化效率,改进或稳定性。迫切需要在电化学水分解过程中通过任何方法实时了解确切的气体量。借鉴现有技术宽带声共振溶解光谱法(BARDS),我们展示了一种通过氢释放反应(HER)和氧释放反应(OER)过程产生的气体体积不断跟踪电化学水分解的原始方法。该技术可用于揭示新的电极材料的真实特征,这些新电极材料会释放出氢气并将材料电化学与实时产生的真实气体量相关联。
更新日期:2020-01-17
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