Article
Thermodynamics
Ragnhild Hancke, Thomas Holm, Oystein Ulleberg
Summary: This study provides a detailed techno-economic assessment of high-pressure proton exchange membrane-based water electrolysis (PEMEL) systems. It demonstrates that economically viable solutions can be achieved with high-pressure PEMEL systems operating up to 200 bar, which are suitable for various industrial applications.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Chemistry, Physical
Stefania Siracusano, Fausta Giacobello, Antonino S. Arico
Summary: Minimizing the use of high-cost metal electrocatalysts is crucial for cost-effective green hydrogen production by proton exchange membrane water electrolysis. This study developed a non-platinum group metal anode catalyst based on silver and titanium suboxide for the oxygen evolution reaction. The catalyst showed promising performance and excellent stability, making it a cost-effective alternative to noble metal catalysts.
JOURNAL OF POWER SOURCES
(2023)
Review
Thermodynamics
Shu Yuan, Congfan Zhao, Xiyang Cai, Lu An, Shuiyun Shen, Xiaohui Yan, Junliang Zhang
Summary: This review discusses the evolution and transport processes of gas bubbles, as well as the mechanisms by which bubbles impact PEMWE cell performance. It also summarizes the latest methods to mitigate bubble-induced performance losses. Similarities between PEMWE and AEMWE are explored, and principles of bubble management are presented, along with future research priorities and suggestions.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2023)
Article
Chemistry, Analytical
Shady Abdelnasser, Takumi Hakamata, Hitoshi Ogihara, Hideki Kurokawa
Summary: The conversion of alcohols to valuable intermediates in an environmentally friendly manner is important for a sustainable society. Proton exchange membrane (PEM) electrolysis can be a green process for alcohol conversion. The electrolysis of 1-propanol (1-PrOH) was studied and the water concentration in the electrolysis solution was found to significantly influence the products. The formation of 1,1-dipropoxypropane (DPP) and propionaldehyde in the electrolysis process was explained based on non-electrochemical acetalization reaction and electrochemically-formed intermediates.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Review
Energy & Fuels
Diya Agrawal, Navya Mahajan, Satyapaul A. Singh, I. Sreedhar
Summary: This study presents electrolysis and photocatalysis as the main methods for hydrogen production, discussing their challenges and potential. Alkaline water electrolysis is a commercial technology for large-scale hydrogen production, while proton exchange membrane electrolysis and solid oxide electrolysis cells are highly efficient. However, energy-efficient and economically feasible water electrolysis still face challenges. Photocatalysis is an efficient method that can enhance hydrogen production efficiency by manipulating catalyst characteristics.
Article
Chemistry, Physical
Yichen Yin, Sijia Liu, Yang Yang, Dian Gong, Minghao Liu, Guojuan Liu, Ping Wu, Qing Xu, Chengbing Yu, Gaofeng Zeng
Summary: Water electrolysis is a promising method for producing non-fossil fuel derived H2, and medium temperature water (steam) electrolysis (100-350 degrees C) has great potential due to its reduced energy consumption and utilization of low-grade waste heat. However, the performance of proton conductive membranes presents a challenge. In this study, a PVC-PEI hybrid membrane was developed by cross-linking PVC and PEI, and the integrated nitrogen-containing groups of PEI enhanced the adsorption and loading rate of phosphoric acid, thereby providing proton conductivity for the hybrid membrane. The optimized PVC-PEI membrane achieved a maximum proton conductivity of 4.3 x 10-2 S cm-1 at 180 degrees C and exhibited long-term conductivity stability for 200 hours at 140 degrees C. The PVC-PEI membrane electrode assembly showed high water electrolysis reactivity in the range of 100-180 degrees C with a commercial IrO2 anode and Pt/C cathode, and demonstrated reliable stability for water electrolysis at 140 degrees C.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Christine Minke, Michel Suermann, Boris Bensmann, Richard Hanke-Rauschenbach
Summary: Proton exchange membrane water electrolysis (PEMWE) is a key technology for future sustainable energy systems, using iridium as catalyst for the oxygen evolution reaction. To meet the immense future iridium demand, it is essential to reduce iridium catalyst loading in PEM electrolysis cells and develop a recycling infrastructure.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Doria Marcius, Ankica Kovac, Mihajlo Firak
Summary: This paper discusses the working principle and design development of electrochemical hydrogen compression technology, as well as its importance in hydrogen energy research. Electrochemical hydrogen compressors have advantages such as noiseless, vibration-free operation, modularity, and high efficiency, and can be used for hydrogen purification and extraction.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Chemistry, Physical
Horacio R. Corti
Summary: This article analyzes the recent advances in the research and development of polymer electrolytes for proton exchange membrane electrolyzers (PEME), focusing on low and high temperature PEMEs. The performance of high temperature PEMEs is not significantly improved compared to low temperature ones. Proton conductivity and H2 permeability are identified as key parameters for assessing novel PEME membranes, and future research in this field is discussed.
CURRENT OPINION IN ELECTROCHEMISTRY
(2022)
Article
Green & Sustainable Science & Technology
Xufei Gu, Zhi Ying, Xiaoyuan Zheng, Binlin Dou, Guomin Cui
Summary: A PV-Battery-PEM water electrolysis system was constructed to achieve all-day stable hydrogen production, improving solar energy utilization and green hydrogen generation. An energy management strategy (EMS) was proposed to improve energy utilization efficiency and reduce light discard rate. Results showed that adding a battery for energy storage increased energy efficiency by 2-4% and reduced light discarding.
Article
Chemistry, Applied
Preeti Waribam, Kanticha Jaiyen, Chanatip Samart, Makoto Ogawa, Guoqing Guan, Suwadee Kongparakul
Summary: This study developed a hybrid composite proton exchange membrane (PEM) for proton transfer in water electrolysis. The addition of MXene-Cu2O composite promoted the oxidative stability of the composite PEM, improving the efficiency and hydrogen production. This provides a potential choice for the application of water electrolysis technology.
Review
Biochemistry & Molecular Biology
Leandri Vermaak, Hein W. J. P. Neomagus, Dmitri G. Bessarabov
Summary: This paper provides an overview of commercial hydrogen separation technologies, with a detailed discussion on electrochemical hydrogen separation (EHS). EHS has various advantages, but is hindered by factors such as cost, lack of understanding of degradation mechanisms, and unexplored aspects.
Article
Chemistry, Physical
Tuan Linh Doan, Han Eol Lee, MinJoong Kim, Won Chul Cho, Hyun Seok Cho, Taekeun Kim
Summary: In this study, a thin layer of IrO2/TiO2 catalyst is deposited on the surface of the polymer electrolyte membrane water electrolyzer's transport layer to prevent passivation and improve performance. The experiment results show that increasing the catalyst loading can reduce cell Ohmic resistance and enhance performance.
JOURNAL OF POWER SOURCES
(2022)
Article
Nanoscience & Nanotechnology
Weitian Wang, Kui Li, Lei Ding, Shule Yu, Zhiqiang Xie, David A. Cullen, Haoran Yu, Guido Bender, Zhenye Kang, Jacob A. Wrubel, Zhiwen Ma, Christopher B. Capuano, Alex Keane, Kathy Ayers, Feng-Yuan Zhang
Summary: Conditioning plays a crucial role in improving the performance and economic efficiency of PEMEC. In this study, a PEMEC with Ir-coated gas diffusion electrode (IrGDE) was investigated using electrochemistry and in situ visualization techniques. The results showed that the cell efficiency increased, and both the ohmic and activation overpotential losses decreased after conditioning. The visualization of bubble formation revealed an increase in reaction sites and surface oxidation on the IrGDE, providing insights for future GDE design and optimization.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Chang Ki Kim, Hyun-Seok Cho, Chang-Hee Kim, Wonchul Cho, Hyun-Goo Kim
Summary: A photovoltaic-electrolysis-PEM hybrid model was developed for a feasibility study in Korea, where simulations of several scenarios were conducted. The study found that the hybrid system efficiently reduced peak loads during the day, with the capacity factor of the Proton Exchange Membrane system increasing in winter due to weaker solar irradiance.
FRONTIERS IN CHEMISTRY
(2021)
Article
Chemistry, Physical
Guo-Bin Jung, Chang-Tsair Chang, Chia-Chen Yeh, Xuan-Vien Nguyen, Shih-Hung Chan, Cheng-You Lin, Jyun-Wei Yu, Win-Tai Lee, Shu-Wei Chang, I-Cheng Kao
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2016)
Article
Green & Sustainable Science & Technology
Jyun-Wei Yu, Guo-Bin Jung, Chi-Wen Chen, Chia-Chen Yeh, Xuan-Vien Nguyen, Chia-Ching Ma, Chung-Wei Hsieh, Cheng-Lung Lin
Article
Green & Sustainable Science & Technology
Xuan-Vien Nguyen, Chang-Tsair Chang, Guo-Bin Jung, Shih-Hung Chan, Chia-Chen Yeh, Jyun-Wei Yu, Chi-Yuan Lee
Article
Energy & Fuels
Guo-Bin Jung, Li-Hsing Fang, Min-Jay Chiou, Xuan-Vien Nguyen, Ay Su, Win-Tai Lee, Shu-Wei Chang, I-Cheng Kao, Jyun-Wei Yu
Article
Energy & Fuels
Guo-Bin Jung, Shih-Hung Chan, Chun-Ju Lai, Chia-Chen Yeh, Jyun-Wei Yu
Article
Electrochemistry
Chi-Wen Chen, Ay Su, Chia-Chen Yeh, Jyun-Wei Yu, Yu-Ting Lu, Guo-Bin Jung
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2016)
Article
Electrochemistry
Guo-Bin Jung, Li-Hsing Fang, Cheng-You Lin, Xuan-Vien Nguyen, Chia-Chen Yeh, Chi-Yuan Lee, Jyun-Wei Yu, Shih-Hung Chan, Win-Tai Lee, Shu-Wei Chang, I-Cheng Kao
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2015)
