Basic study of alkaline water electrolysis

Manabe, Akiyoshi; Kashiwase, Masaharu; Hashimoto, Terumi; Hayashida, Toshikazu; Kato, Atsushi; Hirao, K.; Shimomura, Ikuo; Nagashima, Ikuo

doi:10.1016/j.electacta.2012.12.105

Cited by 148 publications

(71 citation statements)

References 4 publications

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“…However, this pathway is technically possible only in combination with PEWE. It has been shown ( Figure 10) via a detailed energetic evaluation based on a uniform model description of these three hydrogen production pathways that water electrolysis in a cell operating at asymmetric pressure conditions (corresponding to path III) is more favorable at pressures below 40 bars, while at higher pressures electrolysis at ambient pressure followed by mechanical compression (path I) is the better option [56]. But asymmetric pressure levels applied in the anode and cathode compartments of the PEWE cell can lead to significant hydrogen crossover through the polymer electrolyte membrane.…”

Section: From the Catalyst To The Water Electrolysis Cellmentioning

confidence: 99%

“…The use of water electrolysers for intermittent storage of renewable energy imposes operation under highly dynamic conditions [56], which may cause accelerated aging of some cell materials. Understanding and controlling the aging mechanisms is imperative for the long-term operation of large-scale electrolyser units.…”

Section: From the Catalyst To The Water Electrolysis Cellmentioning

confidence: 99%

“…One of the questions to be answered at the system level is related to the pressure conditions of electrolysis. Depending on the application, hydrogen should be pressurized under different levels (30-200 bars) [56]. Currently, both alkaline and polymer electrolyte (PEWE) electrolysers offer technical solutions for the production of high pressure hydrogen, either by electrolysis at ambient pressure followed by mechanical gas compression ( Figure 10, path I) or by high-pressure electrolysis (path II).…”

Section: From the Catalyst To The Water Electrolysis Cellmentioning

confidence: 99%

“…At MPI-DKTS the activity and stability of membrane-electrode-assemblies employing an Ir-based anode catalyst, a Pt-based cathode catalyst and NAFION N117 as polymer electrolyte is currently being evaluated in polymer electrolyte water electrolysis (PEWE) single cell serving as a benchmark for the comparison to novel materials obtained from MAXNET Energy consortium. The stability is tested under a standardized dynamic operating protocol, which mimics PEWE operation as it is foreseen when handling intermittent electricity supply from renewable energy [56]. To test novel materials under technically relevant conditions, they have to be combined to build technical electrodes.…”

Section: From the Catalyst To The Water Electrolysis Cellmentioning

confidence: 99%

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MAXNET Energy – Focusing Research in Chemical Energy Conversion on the Electrocatlytic Oxygen Evolution

Auer

Cap

Antonietti

et al. 2015

Green

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MAXNET Energy is an initiative of the Max Planck society in which eight Max Planck institutes and two external partner institutions form a research consortium aiming at a deeper understanding of the electrocatalytic conversion of small molecules. We give an overview of the activities within the MAXNET Energy research consortium. The main focus of research is the electrocatalytic water splitting reaction with an emphasis on the anodic oxygen evolution reaction (OER). Activities span a broad range from creation of novel catalysts by means of chemical or material synthesis, characterization and analysis applying innovative electrochemical techniques, atomistic simulations of state-of-the-art x-ray spectroscopy up to model-based systems analysis of coupled reaction and transport mechanisms. Synergy between the partners in the consortium is generated by two modes of cooperation – one in which instrumentation, techniques and expertise are shared, and one in which common standard materials and test protocols are used jointly for optimal comparability of results and to direct further development. We outline the special structure of the research consortium, give an overview of its members and their expertise and review recent scientific achievements in materials science as well as chemical and physical analysis and techniques. Due to the extreme conditions a catalyst has to endure in the OER, a central requirement for a good oxygen evolution catalyst is not only its activity, but even more so its high stability. Hence, besides detailed degradation studies, a central feature of MAXNET Energy is a standardized test setup/protocol for catalyst stability, which we propose in this contribution

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Section: From the Catalyst To The Water Electrolysis Cellmentioning

confidence: 99%

Section: From the Catalyst To The Water Electrolysis Cellmentioning

confidence: 99%

Section: From the Catalyst To The Water Electrolysis Cellmentioning

confidence: 99%

Section: From the Catalyst To The Water Electrolysis Cellmentioning

confidence: 99%

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MAXNET Energy – Focusing Research in Chemical Energy Conversion on the Electrocatlytic Oxygen Evolution

Auer

Cap

Antonietti

et al. 2015

Green

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“…The main limits associated with this technology are the relatively low current density, low operating pressure, cross-over of gases, and low partial-load range [8][9][10][11][12]. On the other hand, the proton exchange membrane (PEM)electrolyzer is an emerging H 2 production technology.…”

Section: Electrochemical Cells For Wementioning

confidence: 99%

Emerging nanostructured electrode materials for water electrolysis and rechargeable beyond Li-ion batteries

Pomerantseva

Resini

Kovnir

et al. 2017

Advances in Physics: X

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This review describes recent advances in electrochemical water electrolysis and rechargeable beyond Li-ion battery research, two emergent and widely employed technologies playing important roles in clean energy production and storage. The principle components of these electrochemical processes are electrode materials, which are currently facing challenges in performance improvement, thus motivating the development of novel electrode materials. This development requires synergistic interactions between experimentalists and theorists with backgrounds in solid state chemistry, condensed matter physics, and materials science and engineering. In light of a large amount of literature covering the topic, we will focus this review on the seminal electrode materials that have been discovered in the last five years, such as transition metal chalcogenides, carbides, and phosphides, as well as 2D layered materials. Intensive cross-disciplinary research is also dedicated to nanostructuring and hybridization of the emerging electrode materials in order to maximize the efficiency and simultaneously to lower the cost of the processes. As the understanding of the nanoscale-related effects deepens, it opens important pathways to the discovery of further materials and their improvement.

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Alkaline Water Electrolysis

Guillet

Millet

2015

Hydrogen Production

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Basic study of alkaline water electrolysis

Cited by 148 publications

References 4 publications

MAXNET Energy – Focusing Research in Chemical Energy Conversion on the Electrocatlytic Oxygen Evolution

MAXNET Energy – Focusing Research in Chemical Energy Conversion on the Electrocatlytic Oxygen Evolution

Emerging nanostructured electrode materials for water electrolysis and rechargeable beyond Li-ion batteries

Alkaline Water Electrolysis

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