Journal
JOURNAL OF POROUS MATERIALS
Volume 28, Issue 3, Pages 955-961Publisher
SPRINGER
DOI: 10.1007/s10934-021-01048-6
Keywords
FeAl; Al2O3 porous composite; Microfiltration membrane; Filtration and separation; Intermetallic; High temperature flue gas
Funding
- Fundamental Research Funds for the Central Universities [FRF-TP-19-080A1]
- China Postdoctoral Science Foundation [2019M660452]
- National Natural Science Foundation of China [51671016, 51831001]
- Creative Research Groups of China [51921001]
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The FeAl/Al2O3 PCMM, fabricated by powder metallurgy method, demonstrates high efficiency for high temperature flue gas purification.
Particulate matter (PM) pollution has raised serious concerns for public health. FeAl intermetallic porous membrane with extensive interconnected pores are potential candidates as functional materials for high-temperature particulate matter (PM) capturing. However, it remains a big challenge to fabricate FeAl intermetallic porous membrane simultaneously satisfy the requirements of good formability and excellent filter fineness. Here, we introduce a FeAl/Al2O3 porous composite microfiltration membrane (PCMM) for highly efficiency high temperature flue gas purification. The FeAl/Al2O3 PCMM was fabricated by powder metallurgy method via the combination of mutual diffusion and chemical reaction. By separation of simulated high-temperature flue gas, we achieve an ultra-high PM removal efficiency (96.2% for PM2.5, and 99.3% for PM2.5-10, respectively). These features, combined with our experimental design strategy, provide a new insight into designing high-temperature PM filtration membrane materials with high performance and durability.
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