【摘 要】
：
Electrochemical conversion with solid oxide electrolysis cells is a promising technology for CO2 utilization and simultaneously store renewable energy.In this work,Ce0.9M0.1O2-δ (CeM,M=Fe,Co,Ni) catalysts are infiltrated into La0.6Sr0.4Cr0.5Fe0.5O3-δ-Gd0.
【机 构】
：
Division of Fuel Cells, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Ph
论文部分内容阅读
Electrochemical conversion with solid oxide electrolysis cells is a promising technology for CO2 utilization and simultaneously store renewable energy.In this work,Ce0.9M0.1O2-δ (CeM,M=Fe,Co,Ni) catalysts are infiltrated into La0.6Sr0.4Cr0.5Fe0.5O3-δ-Gd0.2Ce0.8O2-δ (LSCrFe-GDC) cathode to enhance the electrochemical performance for CO2 electrolysis.CeCo-LSCrFe-GDC cell obtains the best performance with a current density of 0.652Acm-2,followed by CeFe-LSCrFe-GDC and CeNi-LSCrFe-GDC cells with the value of 0.603 and 0.535Acm-2,respectively,about 2.44,2.26 and 2.01 times higher than that of the LSCrFe-GDC cell at 1.5V and 800℃.Electrochemical impedance spectra combined with distributions of relaxed times analysis shows that both CO2 adsorption process and the dissociation of CO2 at triple phase boundaries are accelerated by CeM catalysts,while the latter is the key rate-determining step.
其他文献
Water splitting by electrolysis is an appealing pathway for sustainable hydrogen production.The practical performance of water splitting is highly dependent on the efficiency of electrocatalysts,which can promote the anodic oxygen evolution reaction (OER)
Carbon layers with microporous structures fine-modulated by naphthalene (NAP) were prepared to coat on LiFePO 4 , aiming to enhance the Li + diffusion coefficient for Li-ion batteries. Characterized by BET, XRD, TEM, EIS, etc., it is indicated that in the
The discovery of novel electrode materials promises to unleash a number of technological advances in lithium-ion batteries.V2O5 is recognized as a high-performance cathode that capitalizes on the rich redox chemistry of vanadium to store lithium.To unlock
Copper-based catalysts for CO2 hydrogenation to methanol are supported on ZrO2 and CeO2,respectively.Reaction results at 3.0MPa and temperatures between 200 and 300 ℃ reveal that Cu catalysts supported on ZrO2 and CeO2 exhibit better activity and selectiv
Silicon, as a promising semiconductor for fabricating photocathode toward photoelectrochemical hydro- gen evolution reaction (PEC-HER), should be improved in light harvesting ability and catalytic kinetics to obtain high PEC performance. Herein, a novel a
Invasion of drilling fluid into natural gas hydrate deposits during drilling might damage the reservoir, induce hydrate dissociation and then cause wellbore instability and distortion of the data from well log- ging. Adding nanoparticles into drilling flu
The dynamic and kinetic evolution of supported metal particles in the presence of reactants is deci- sive in shaping the nature of the catalytic active sites and the deactivation process. Ostwald ripening of FeO/Pt(111) supported Au particles in the prese
Two dimensional (2D) transition metal oxides and chalcogenides demonstrate a promising performance in sodium-ion batteries (SIBs) application. In this study, we investigated the use of a composite of freeze dried V2O5·nH2O nanosheets and multi-walled carb
Biomass-derived carbon materials have aroused widespread concern as host material of sulfur to en- hance electrochemical performances for lithium-sulfur batteries. Herein, goat hair, as a low-cost and eco-friendly precursor, is employed to fabricate cauli
Hydrogen is a generally abundant, safe, clean and environmentally apt alternative fuel, which replen- ishes the void generated by depleting fossil fuel reserves. The adoption of hydrogen as an energy source has been restricted to low levels due to the com