Basic investigation into the production of oxygen in a solid electrolyte process

Richter, R.

doi:10.2514/6.1981-1175

Cited by 10 publications

(3 citation statements)

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“…21 Meanwhile, co-electrolysis of H 2 O-CO 2 mixture has been studied to directly generate syngas as raw materials for synthetic fuel production. 21 Later on, Richter et al 26 and Mizusaki et al 27 separately investigated the CO 2 electrolysis in Pt/YSZ/Pt cells, of which the overpotentials were very high. Tao et al 13,14 reported that the performances of SOEs operating on CO 2 had been improved significantly by adding 50 wt% YSZ to the Pt electrode.…”

mentioning

confidence: 99%

Electrolysis of Carbon Dioxide in a Solid Oxide Electrolyzer with Silver-Gadolinium-Doped Ceria Cathode

Xie

Xiao

Liu

et al. 2015

J. Electrochem. Soc.

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Splitting CO 2 into CO and pure O 2 at high temperature through solid oxide electrolyzers (SOEs) could provide an efficient way for energy storage and CO 2 utilization. Tubular solid oxide electrolysis cells, with yttrium-stabilized-zirconia (YSZ) as electrolyte, strontium-doped lanthanate (LSM) as anode, cermet of Ag-GDC (gadolinium-doped-ceria) as cathode, is fabricated and operated as SOEs for electrolysis of pure CO 2 . Such an SOE shows a minimum electrolyzing voltage of 0.70 V and a current density of 1359 mA cm −2 at 2 V. Its CO production rates are 3.1, 6.6 and 10.0 mL min −1 at electrical currents of 0.5, 1.0 and 1.5 A, respectively, at 800 • C. The corresponding Faraday efficiencies are 88.6%, 94.3%, and 95.2%, and the electrical energy conversion efficiencies are 75.4%, 65.2%, and 56.5%, respectively. An SOE with Ag-GDC electrode is steadily operated at 1.59 V for pure CO 2 electrolysis at 800 • C for 18 h, suggesting that Ag-GDC is a promising cathode material for SOEs of CO 2 electrolysis. Energy storage plays an extremely important role in peak load shifting of traditional power plant and in effective application of intermittent renewable energies such as solar, wind, and tide, etc.1,2 Solid oxide electrolyzers (SOEs) have attracted more and more attention in recent years due to their environmental-friendliness and high efficiency in storing energy by converting electrical energy into chemicals such as hydrogen or carbon monoxide through electrolysis of water or carbon dioxide. [3][4][5][6] In principle, SOEs work in the reverse manner of high temperature solid oxide fuel cells (SOFCs). 6 A cathode of an electrochemical cell is the electrode where reduction reaction occurs, and an anode is where oxidation reaction occurs. An electrode functioning as the anode of an SOFC will work as the cathode when the cell is operated in an SOE mode. At the same time, the cathode of the SOFC is shifted to be the anode of the SOE. Nevertheless, the electrode on the air or oxygen side always has a higher potential than that on the fuel (or CO 2 rich or H 2 O rich) side. The former electrode can be called as oxygen electrode or positive electrode (+) and the latter fuel electrode or negative electrode (−), as marked in Fig. 1. Using external electricity, SOEs are able to electrochemically convert steam to hydrogen and carbon dioxide to carbon monoxide at the fuel electrode. At the same time, pure oxygen can be obtained at the oxygen electrode.While high temperature steam electrolysis has got great progress in producing hydrogen, which is a well-known green alternative energy carrier, 7-12 CO 2 electrolysis using the SOEs for CO 2 capture and storage as well as utilization has also attracted increasing research interests due to the great concern of global climate changes caused by the greenhouse effect.13-20 CO produced from CO 2 electrolysis at the cathode of an SOE can be used as the fuel of an SOFC for generating electricity or as a feed stock for producing synthetic fuel via Fischer-Tropsch synthesis. 16 Pure oxy...

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Electrolysis of Carbon Dioxide in a Solid Oxide Electrolyzer with Silver-Gadolinium-Doped Ceria Cathode

Xie

Xiao

Liu

et al. 2015

J. Electrochem. Soc.

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“…Furthermore, the yttria stabilized zirconia cell that can be used to remove oxygen from heated Mars atmosphere has been demonstrated. 7 However, in order for the technology to become accepted as a viable option for supporting early missions to Mars, it is necessary to demonstrate that these systems can be operated reliably for long periods of time and with minimum human intervention.…”

Section: R Ecent Studies Have Identified Lunar Bases and Mannedmentioning

confidence: 99%

Expert systems for automated maintenance of a Mars oxygen productionsystem

Huang

Ash

1992

Journal of Spacecraft and Rockets

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“…Only recently, however, has it been demonstrated that thermal dissociation of C02 can provide sufficient oxygen in a gas mixture at the cathode to allow a zirconia cell to produce pure O 2 . 4 Another important component of the ISPP system assumed in this study is the molecular adsorption gas compressor. This device operates on the principle that at low temperature, certain gases can be adsorbed onto m appropriate high surface area materials.…”

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The ballistic Mars hopper - An alternative Mars mobility concept

Sercel

Blandino

Wood

1987

23rd Joint Propulsion Conference

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The ballistic Mars hopper is proposed as an alternative mobility concept for unmanned exploration of the martian surface. In the ballistic Mars hopper concept, oxygen and carbon monoxide produced from the martian atmosphere are used as propellants in a rocket propulsion system for an unmanned vehicle on suborbital trajectories between landing sights separated by distances of up to 1000 km. This mobility concept is seen as uniquely capable of allowing both intensive and extensive exploration of the planet using only a single landed vehicle massing approximately 2000 kg. The technical challenges associated with In-Situ Propellant Production (ISPP) on the surface of Mars are reviewed. A rocket propulsion subsystem capable of using oxygen and carbon monoxide as propellants is described. Finally, results of mission analysis and a hopper landing hazard simulation are reported. It is concluded that an attractive Mars hopper can be developed based on relatively near-term technology.

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Basic investigation into the production of oxygen in a solid electrolyte process

Cited by 10 publications

References 0 publications

Electrolysis of Carbon Dioxide in a Solid Oxide Electrolyzer with Silver-Gadolinium-Doped Ceria Cathode

Electrolysis of Carbon Dioxide in a Solid Oxide Electrolyzer with Silver-Gadolinium-Doped Ceria Cathode

Expert systems for automated maintenance of a Mars oxygen productionsystem

The ballistic Mars hopper - An alternative Mars mobility concept

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