Published in Frontiers in Energy Research
Hydrogen is expected to become a dominant energy vector in a scenario where renewable energies will prevail over other conventional sources. This suggests that beyond its conventional industrial applications, such as in the chemical industry, hydrogen is poised to find numerous additional uses, including serving as a fuel for internal combustion en...
Published in Journal of The Electrochemical Society
Platinum-based recombination interlayers (ILs) are a promising approach to mitigate hydrogen and oxygen crossover during proton exchange membrane (PEM) electrolysis. Until now, there are only experimental investigations on this topic, which demonstrate the integral behavior of a PEM electrolysis cell with an IL but do not resolve local effects. Thi...
Published in Journal of The Electrochemical Society
Fluid dynamics models complement expensive experiments with limited measurement accuracy that investigate the mass transport in PEM water electrolysis. Here, a first-principle microscale model for oxygen transport is successfully validated that accounts for (1) uncertain transport processes in catalyst layers, (2) numerically challenging capillary-...
Published in Journal of The Electrochemical Society
The deactivation of the reaction surface caused by bubble covering is an important factor that causes the decrease in the efficiency of water electrolysis. By combining an electrochemical workstation with a high-speed camera, the evolutionary properties of hydrogen bubble and potential were obtained on a horizontal microelectrode with a diameter of...
Published in Journal of The Electrochemical Society
The imperative shift towards decarbonization necessitates the production of clean hydrogen through water electrolysis, powered by renewable energy sources. Among electrolyzer technologies, proton-exchange-membrane (PEM) systems emerge as a promising option for large-scale hydrogen generation due to their modular design and rapid response, aligning ...
The imperative shift towards decarbonization necessitates the production of clean hydrogen through water electrolysis, powered by renewable energy sources. Among electrolyzer technologies, proton-exchange-membrane (PEM) systems emerge as a promising option for large-scale hydrogen generation due to their modular design and rapid response, aligning ...
京都大学 / 新制・課程博士 / 博士(工学) / 甲第25300号 / 工博第5259号 / 京都大学大学院工学研究科物質エネルギー化学専攻 / (主査)教授 安部 武志, 教授 作花 哲夫, 准教授 松井 敏明 / 学位規則第4条第1項該当 / Doctor of Philosophy (Engineering) / Kyoto University / DGAM
Published in Journal of The Electrochemical Society
Hydrogen production at low potential was realized by urea oxidation coupled water electrolysis. Transition metal phosphides ((NiFe)2P) were prepared by regulating polyvinylpyrrolidone (PVP) addition during the materials preparation, and their electrocatalytic performance for urea oxidation coupled hydrogen production was investigated. It was found ...
Green hydrogen, produced via water electrolysis using renewable electricity, will play a crucial role in decarbonizing industrial and heavy-duty transportation sectors. Anion exchange membrane water electrolyzers (AEMWEs) can overcome many of the performance and cost limitations of incumbent technologies, however, still suffer from durability chall...
Published in Pure and Applied Chemistry
De Nora, an Italian multinational corporation listed on Euronext Milan, stands as a notable leader in sustainable technologies, especially within the growing field of green hydrogen. Over its century-long existence, the company has undergone distinct phases, culminating in a significant global role for a greener and more sustainable future. De Nora...
