PDF Publication Title:
Text from PDF Page: 001
processes Article CO2-Tolerant Oxygen Permeation Membranes Containing Transition Metals as Sintering Aids with High Oxygen Permeability Xiaopeng Wang 1,†, Lei Shi 1,†, Yanhao Huang 1, Lingyong Zeng 1, Mebrouka Boubeche 1 , Dongcheng Li 1 and Huixia Luo 1,2,3,4,* Citation: Wang,X.;Shi,L.;Huang,Y.; Zeng, L.; Boubeche, M.; Li, D.; Luo, H. CO2-Tolerant Oxygen Permeation Membranes Containing Transition Metals as Sintering Aids with High Oxygen Permeability. Processes 2021, 9, 528. https://doi.org/10.3390/ pr9030528 Academic Editor: Nariman Yousefi Received: 10 February 2021 Accepted: 11 March 2021 Published: 15 March 2021 Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affil- iations. Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). 1 2 3 4 * Correspondence: luohx7@mail.sysu.edu.cn; Tel.: +86-020-3938-6124 † These authors contributed equally to this work. Abstract: Chemical doping of ceramic oxides may provide a possible route for realizing high- efficient oxygen transport membranes. Herein, we present a study of the previously unreported dual-phase mixed-conducting oxygen-permeable membranes with the compositions of 60 wt.% Ce0.85Pr0.1M0.05O2-δ-40 wt.%Pr0.6Sr0.4Fe0.8Al0.2O3-δ (M = Fe, Co, Ni, Cu) (CPM-PSFA) adding sinter- ing aids, which is expected to not only improve the electronic conductivity of fluorite phase, but also reduce the sintering temperature and improve the sintering properties of the membranes. X-ray pow- der diffraction (XRD) results indicate that the CPM-PSFA contain only the fluorite and perovskite two phases, implying that they are successfully prepared with a modified Pechini method. Backscattered scanning electron microscopy (BSEM) results further confirm that two phases are evenly distributed, and the membranes are very dense after sintering at 1275 ◦C for 5 h, which is much lower than that (1450 ◦C, 5 h) of the composite 60 wt.%Ce0.9Pr0.1O2-δ-40 wt.%Pr0.6Sr0.4Fe0.8Al0.2O3-δ (CP-PSFA) without sintering aids. The results of oxygen permeability test demonstrate that the oxygen per- meation flux through the CPCu-PSFA and CPCo-PSFA is higher than that of undoped CP-PSFA and can maintain stable oxygen permeability for a long time under pure CO2 operation condition. Our results imply that these composite membranes with high oxygen permeability and stability provide potential candidates for the application in oxygen separation, solid oxide fuel cell (SOFC), and oxy-fuel combustion based on carbon dioxide capture. Keywords: oxygen separation; composite membrane; al-containing oxides; modified one-pot Pechini method; sintering aids 1. Introduction There has long been interest in ceramic mixed-conducting oxygen transport mem- branes (OTMs) technology in virtue of their widespread applications in the energy cat- alytic fields such as air separation [1–4], cathodes in solid oxide fuel cells (SOFCs) [5,6], hydrocarbons conversion [7–9], hydrogen separation/production [10–13], and oxy-fuel combustion for CO2 capture [14–18]. Especially, the OTMs with high CO2 tolerance have great prospects to be used in oxy-fuel combustion integrated with CO2 capture, which provides an effective way to minimize the emission of CO2 and toxic NOx pollutants from School of Materials Science and Engineering, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou 510275, China; wangxp27@mail2.sysu.edu.cn (X.W.); shilei8@mail2.sysu.edu.cn (L.S.); huangyh296@mail2.sysu.edu.cn (Y.H.); zengly25@mail2.sysu.edu.cn (L.Z.); boubeche@mail.sysu.edu.cn (M.B.); lidch8@mail2.sysu.edu.cn (D.L.) State Key Laboratory of Optoelectronic Materials and Technologies, No. 135, Xingang Xi Road, Guangzhou 510275, China Key Lab of Polymer Composite and Functional Materials, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou 510275, China Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou 510275, China Processes 2021, 9, 528. https://doi.org/10.3390/pr9030528 https://www.mdpi.com/journal/processesPDF Image | CO2-Tolerant Oxygen Permeation Membranes
PDF Search Title:
CO2-Tolerant Oxygen Permeation MembranesOriginal File Name Searched:
processes-09-00528-v2.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |