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Calcium-containing double-phase mixed conductor oxygen permeation membrane material with good stability and preparation method thereof
The invention designs and prepares a calcium-containing double-phase mixed conductor oxygen permeation membrane material, and belongs to the technical field of inorganic functional ceramic manufacturing. The general formula of the double-phase mixed conductor oxygen permeation membrane material is Ce<0.9>Pr<0.1>O<2-delta>-Pr<1-x>CaFeO<3-delta>(CPO-P<1-x>CFO; 0<=x<=1.0). The preparation method comprises the following steps: preparing required powder by a one-pot sol-gel method, calcining the powder in a muffle furnace at 950 DEG C for 12 hours to obtain a precursor, and tabletting and sintering the powder to obtain the finally required mixed conductor oxygen permeation membrane. The mixed conductor oxygen permeation membrane material with good stability is obtained by regulating and controlling the ratio of the Pr element with multivalent state to the Ca element with +2 valence and lower price cost. The membrane material prepared by the invention shows good stability in a low-oxygen and corrosive atmosphere. The oxygen source can be used as a novel oxygen source to be applied to the high-temperature complex atmosphere oxygen industry, such as the fields of oxygen-enriched combustion, water decomposition and methane coupling.
本发明设计和制备了一种含钙的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。该双相混合导体透氧膜材料的通式为Ce0.9Pr0.1O2‑δ‑Pr1‑xCaxFeO3‑δ(CPO‑P1‑xCxFO；0≤x≤1.0)；首先通过一锅溶胶‑凝胶法制备所需的粉体，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。通过调控具有多价态的Pr元素及具有+2价且价格成本较低的Ca元素的比例从而得到稳定性良好的混合导体透氧膜材料。本发明制备的膜材料在低氧及腐蚀气氛下展示出了良好的稳定性。本发明可以作为新型氧源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。
Calcium-containing double-phase mixed conductor oxygen permeation membrane material with good stability and preparation method thereof
The invention designs and prepares a calcium-containing double-phase mixed conductor oxygen permeation membrane material, and belongs to the technical field of inorganic functional ceramic manufacturing. The general formula of the double-phase mixed conductor oxygen permeation membrane material is Ce<0.9>Pr<0.1>O<2-delta>-Pr<1-x>CaFeO<3-delta>(CPO-P<1-x>CFO; 0<=x<=1.0). The preparation method comprises the following steps: preparing required powder by a one-pot sol-gel method, calcining the powder in a muffle furnace at 950 DEG C for 12 hours to obtain a precursor, and tabletting and sintering the powder to obtain the finally required mixed conductor oxygen permeation membrane. The mixed conductor oxygen permeation membrane material with good stability is obtained by regulating and controlling the ratio of the Pr element with multivalent state to the Ca element with +2 valence and lower price cost. The membrane material prepared by the invention shows good stability in a low-oxygen and corrosive atmosphere. The oxygen source can be used as a novel oxygen source to be applied to the high-temperature complex atmosphere oxygen industry, such as the fields of oxygen-enriched combustion, water decomposition and methane coupling.
本发明设计和制备了一种含钙的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。该双相混合导体透氧膜材料的通式为Ce0.9Pr0.1O2‑δ‑Pr1‑xCaxFeO3‑δ(CPO‑P1‑xCxFO；0≤x≤1.0)；首先通过一锅溶胶‑凝胶法制备所需的粉体，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。通过调控具有多价态的Pr元素及具有+2价且价格成本较低的Ca元素的比例从而得到稳定性良好的混合导体透氧膜材料。本发明制备的膜材料在低氧及腐蚀气氛下展示出了良好的稳定性。本发明可以作为新型氧源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。
Calcium-containing double-phase mixed conductor oxygen permeation membrane material with good stability and preparation method thereof
一种具有良好稳定性的含钙双相混合导体透氧膜材料及其制备方法
LUO HUIXIA (author) / WANG XIAOPENG (author) / XIE ZHI'ANG (author) / ZENG LINGYONG (author) / HE YIYI (author)
2021-04-02
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