logo

CO2-Tolerant Oxygen Permeation Membranes

PDF Publication Title:

CO2-Tolerant Oxygen Permeation Membranes ( co2-tolerant-oxygen-permeation-membranes )

Next Page View | Return to Search List

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/processes

PDF Image | CO2-Tolerant Oxygen Permeation Membranes

co2-tolerant-oxygen-permeation-membranes-001

PDF Search Title:

CO2-Tolerant Oxygen Permeation Membranes

Original File Name Searched:

processes-09-00528-v2.pdf

DIY PDF Search: Google It | Yahoo | Bing

SeaMerlin The SeaMerlin Engine is a water based gas leverage turbine for marine propulsion, seawater distillation, oceanwater CO2 harvesting, and more.

About: More about Infinity Turbine and the quest for the Xprize... More Info

Strategy and Consulting Services: Renewable energy strategy, Organic Rankine Cycle, CO2 energy, and Sonification technology consulting... More Info

@elonmusk XPrize $100 million CO2 Challenge: Carbon Removal Prize Challenge Sponsored by Elon Musk... More Info

CO2 Phase Change Demonstrator: Experiment with gas to liquids (CO2 to alcohol) using Nafion and our phase change demonstrator cart (we can ship worldwide)... More Info

CO2 GTL Gas to Liquids Experimental Platform: Experiment with gas to liquids (CO2 to alcohol) using Nafion (electrolyzer membrane) and our phase change demonstrator cart (we can ship worldwide). CO2 goes supercritical at 31 C. This is a experimental platform which you can use to demonstrate phase change with low heat. Includes integration area for small CO2 turbine, static generator, Nafion pellets, Nafion membrate, or Nafion tubes... More Info

Concept: The concept of the SeaMerlin Engine is to convert or supplement existing marine vessel propulsion to a gas leverage turbine which scavenges CO2 from saltwater at the same time it provides vessel thrust.

CONTACT TEL: 608-238-6001 Email: greg@seamerlin.com | RSS | AMP