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High-stability indium-containing double-phase mixed conductor oxygen permeation membrane material and preparation method thereof
The invention designs and prepares a high-stability indium-containing double-phase mixed conductor oxygen permeation membrane material, belonging to the technical field of inorganic functional ceramic manufacturing. The general formula of the indium-containing double-phase mixed conductor oxygen permeation membrane material is Ce<0.9>Pr<0.1>O<2-delta>-Pr<0.6>Sr<0.4>Fe<1-x>InO<3-delta>(CPO-PSF<1-x>InO, wherein x is equal to 0.025, 0.05, 0.075 or 0.1). The preparation method comprises the following steps: firstly, preparing required powder by using a sol-gel one-pot method, calcining the powder in a muffle furnace at 950 DEG C for 12 hours to obtain a precursor, and then tabletting and sintering the powder to obtain a required mixed conductor oxygen permeation membrane. The high-stability mixed conductor oxygen permeation membrane material is obtained by regulating and controlling a ratio of In element to Fe element. The oxygen-permeable membrane material prepared by the invention has good stability under purging of gases such as helium/carbon dioxide and the like, and keeps relatively high oxygen-permeable capacity. The material can be applied as a novel oxygen separation material to the high-temperature complex atmosphere oxygen industry, such as the fields of oxygen-enriched combustion, water decomposition, methane coupling and the like.
本发明设计和制备了一种高稳定性的含铟双相混合导体透氧膜材料，属于无机功能陶瓷制造技术领域。该含铟双相混合导体透氧膜材料的通式为Ce0.9Pr0.1O2‑δ‑Pr0.6Sr0.4Fe1‑xInxO3‑δ(CPO‑PSF1‑xInxO；x＝0.025，0.05，0.075，0.1)；首先通过溶胶‑凝胶一锅法制备所需的粉体，将粉体在马弗炉中950℃下煅烧12小时得到前驱体，然后将粉末压片烧结，得到最后所需的混合导体透氧膜。通过调控In元素与Fe元素的比例，从而得到高稳定性的混合导体透氧膜材料。本发明制备的透氧膜材料在氦气/二氧化碳等气体吹扫下具有良好稳定性，且保持了较高透氧量。本发明可以作为新型氧分离材料应用于高温复杂气氛用氧行业，例如富氧燃烧，水分解及甲烷偶联等领域。
High-stability indium-containing double-phase mixed conductor oxygen permeation membrane material and preparation method thereof
The invention designs and prepares a high-stability indium-containing double-phase mixed conductor oxygen permeation membrane material, belonging to the technical field of inorganic functional ceramic manufacturing. The general formula of the indium-containing double-phase mixed conductor oxygen permeation membrane material is Ce<0.9>Pr<0.1>O<2-delta>-Pr<0.6>Sr<0.4>Fe<1-x>InO<3-delta>(CPO-PSF<1-x>InO, wherein x is equal to 0.025, 0.05, 0.075 or 0.1). The preparation method comprises the following steps: firstly, preparing required powder by using a sol-gel one-pot method, calcining the powder in a muffle furnace at 950 DEG C for 12 hours to obtain a precursor, and then tabletting and sintering the powder to obtain a required mixed conductor oxygen permeation membrane. The high-stability mixed conductor oxygen permeation membrane material is obtained by regulating and controlling a ratio of In element to Fe element. The oxygen-permeable membrane material prepared by the invention has good stability under purging of gases such as helium/carbon dioxide and the like, and keeps relatively high oxygen-permeable capacity. The material can be applied as a novel oxygen separation material to the high-temperature complex atmosphere oxygen industry, such as the fields of oxygen-enriched combustion, water decomposition, methane coupling and the like.
本发明设计和制备了一种高稳定性的含铟双相混合导体透氧膜材料，属于无机功能陶瓷制造技术领域。该含铟双相混合导体透氧膜材料的通式为Ce0.9Pr0.1O2‑δ‑Pr0.6Sr0.4Fe1‑xInxO3‑δ(CPO‑PSF1‑xInxO；x＝0.025，0.05，0.075，0.1)；首先通过溶胶‑凝胶一锅法制备所需的粉体，将粉体在马弗炉中950℃下煅烧12小时得到前驱体，然后将粉末压片烧结，得到最后所需的混合导体透氧膜。通过调控In元素与Fe元素的比例，从而得到高稳定性的混合导体透氧膜材料。本发明制备的透氧膜材料在氦气/二氧化碳等气体吹扫下具有良好稳定性，且保持了较高透氧量。本发明可以作为新型氧分离材料应用于高温复杂气氛用氧行业，例如富氧燃烧，水分解及甲烷偶联等领域。
High-stability indium-containing double-phase mixed conductor oxygen permeation membrane material and preparation method thereof
一种高稳定性的含铟双相混合导体透氧膜材料及其制备方法
LUO HUIXIA (author) / HUANG YANHAO (author) / WANG XIAOPENG (author) / ZENG LINGYONG (author) / HE YIYI (author) / LI DONGCHENG (author)
2021-07-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2021
| European Patent Office | 2021
| European Patent Office | 2021
| European Patent Office | 2015
| European Patent Office | 2015