Ceramic Superionic Conductors

Badwal, S. P. S.

doi:10.1002/9783527603978.mst0127

Cited by 6 publications

(4 citation statements)

References 184 publications

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“…Typically an AMTEC device consists of a sodium or potassium beta alumina as the electrolyte for the transport of Na + or K + ions and sodium or potassium metal as the fluid that drives the device. These materials are known to have high ionic conductivity with ionic transport number for Na + or K + close to unity (Badwal, 1994 ). The electrolyte separates the high pressure (>20 kPa) and HT (700–950°C) section of the device from the low pressure (~100 Pa), LT (100–350°C) side of the cell (Weber, 1974 ; Cole, 1983 ; Ryan, 1999 ; Lodhi and Daloglu, 2001 ; El-Genk and Tournier, 2004 ; Wu et al, 2009 ).…”

Section: Energy Conversion Technologiesmentioning

confidence: 99%

Emerging electrochemical energy conversion and storage technologies

et al. 2014

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Electrochemical cells and systems play a key role in a wide range of industry sectors. These devices are critical enabling technologies for renewable energy; energy management, conservation, and storage; pollution control/monitoring; and greenhouse gas reduction. A large number of electrochemical energy technologies have been developed in the past. These systems continue to be optimized in terms of cost, life time, and performance, leading to their continued expansion into existing and emerging market sectors. The more established technologies such as deep-cycle batteries and sensors are being joined by emerging technologies such as fuel cells, large format lithium-ion batteries, electrochemical reactors; ion transport membranes and supercapacitors. This growing demand (multi billion dollars) for electrochemical energy systems along with the increasing maturity of a number of technologies is having a significant effect on the global research and development effort which is increasing in both in size and depth. A number of new technologies, which will have substantial impact on the environment and the way we produce and utilize energy, are under development. This paper presents an overview of several emerging electrochemical energy technologies along with a discussion some of the key technical challenges.

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Section: Energy Conversion Technologiesmentioning

confidence: 99%

Emerging electrochemical energy conversion and storage technologies

et al. 2014

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“…It is important to note that different manufacturing approaches of 1Ce10ScSZ powder, in particular co-precipitation [7], solgel [8], solid-phase synthesis [9], polymeric precursor method [10] significantly effect the initial properties of the powders. To produce 1Ce10ScSZ ceramic electrolyte, it is necessary to use well-dispersed highly powders with high ability for sintering resulting in high oxygen conductivity and essential densification.…”

Section: Introductionmentioning

confidence: 99%

Joint Impedance Spectroscopy and Fractography Data Analysis of Ceria Doped Scandia Stabilized Zirconia Solid Electrolyte modified by powder types and sintering temperature

et al. 2018

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Parameters of the non-Debye relaxation in the 10Sc1CeSZ solid electrolyte made of various types of ZrO2 powder stabilized with 10-mol.% Sc2O3 and 1-mol.% CeO2 were studied. The influence of powder properties and their sintering temperatures on the impedance spectra is analyzed. In regard to electrical response, the polycrystalline ceramic electrolytes may be considered as a single-phase or a two-phase material consisting of a grain bulk and a boundary. In many cases, the boundary resistance is independent practically on dopants and their distribution across the powders and sintering temperatures. The powder compositions suitable for an electrolyte and electrodes are specified. ________________________________________________________________________________

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“…The β‐alumina family of ceramic compounds exhibit high enough hydronium ion (H 3 O + ) conductivity at temperatures in the range of 100°C–300°C to be considered for use in an electrolyzer. Na + β′′‐alumina and K + β′′‐alumina have ionic conductivities of 1.7 and 0.54 S.cm −1 , respectively, at 300°C . To conduct protons the alkaline metal ion must be exchanged with H 3 O + , which is the mobile species within these systems.…”

Section: Intermediate Temperature Systems (Operating Temperature: 100mentioning

confidence: 99%

Hydrogen production via solid electrolytic routes

Badwal

Giddey

Munnings

2012

WIREs Energy & Environment

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Hydrogen is considered as a sustainable fuel, especially for transport applications, if it is generated using renewable energy sources. Currently, most of the hydrogen is generated from fossil fuels for use in ammonia and fertilizer production, and petrochemical and metallurgical industries with very little use as an energy carrier. In future, the use of hydrogen as a transport fuel in fuel cell or internal combustion engine vehicles is likely to increase stemming from concern over potential oil shortage and greenhouse gas and other pollutant emissions. Electrolysis of water is one of the key technologies to generate hydrogen both at small (distributed productions at end‐use sites) and large scale. Solid electrolytic routes have been under consideration for many years with low‐temperature systems mainly based around polymer electrolyte membranes now reaching commercialization status. High‐temperature solid electrolyte systems can take advantage of utilizing the waste heat from nuclear or coal‐fired power plants or other chemical processes to reduce the electrical energy required, thus boosting the overall system efficiency for steam electrolysis. An overview of various solid electrolytic routes for hydrogen production, materials used, performance, and technology status is given. This article is categorized under: Fuel Cells and Hydrogen > Science and Materials Fuel Cells and Hydrogen > Systems and Infrastructure Energy Research & Innovation > Science and Materials

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Ceramic Superionic Conductors

Cited by 6 publications

References 184 publications

Emerging electrochemical energy conversion and storage technologies

Emerging electrochemical energy conversion and storage technologies

Joint Impedance Spectroscopy and Fractography Data Analysis of Ceria Doped Scandia Stabilized Zirconia Solid Electrolyte modified by powder types and sintering temperature

Hydrogen production via solid electrolytic routes

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