Silicon assisted synthesis of high-purity Ca3Al2O6 carrier towards scale-up of Ca-based carbon dioxide capture materials

Liang，Shuoyang1; Li，Rui1; Qu，Fan1; Dong，Chunling1; Su，Yiping1; Yan，Feng1; Zhang，Zuotai1,2

2023-09-01

10.1016/j.ceramint.2023.06.074

Ceramics International   Impact Factor & Quartile

0272-8842

1873-3956

Aluminium-stabilized calcium-based materials are currently an excellent solution for capturing CO directly from industrial flue gas. However, there is still no report on the technology of low-cost and large-scale assembly of CaAlO and CaO. In this study, we innovatively put forward a silicon-assisted strategy to facilely synthesize high-purity CaAlO and evaluate its cyclic performance for stabilizing uptake CO after assembly. With regard to the Si/Al ratio of 0.2, CaAlO was prepared selectively among 850–900 °C, with only 5.2% CaO residually. The introduction of silicon inhibited the formation of CaAlO by-products and the mechanism of silicon at the calcium-aluminum interface was also explained by systematic characterization. The CaAlO modified sorbent with simple assembly showed extremely high cycle stability improvement compared with the pure precipitated calcium carbonate derived CaO. These works provide technical guidance for the industrial scale-up of the rational design of Al-stabilized calcium-based adsorption materials.

SCI

English

First ; Corresponding

National Natural Science Foundation of China[22008104];National Natural Science Foundation of China[52225407];

Materials Science

Materials Science, Ceramics

WOS:001047286800001

ELSEVIER SCI LTD

MATERIALS SCIENCE

2-s2.0-85162915304

Scopus

1.School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.The Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City,Southern University of Science and Technology,Shenzhen,518055,China

Liang，Shuoyang,Li，Rui,Qu，Fan,et al. Silicon assisted synthesis of high-purity Ca3Al2O6 carrier towards scale-up of Ca-based carbon dioxide capture materials[J]. Ceramics International,2023,49(17):28538-28542.

Liang，Shuoyang.,Li，Rui.,Qu，Fan.,Dong，Chunling.,Su，Yiping.,...&Zhang，Zuotai.(2023).Silicon assisted synthesis of high-purity Ca3Al2O6 carrier towards scale-up of Ca-based carbon dioxide capture materials.Ceramics International,49(17),28538-28542.

Liang，Shuoyang,et al."Silicon assisted synthesis of high-purity Ca3Al2O6 carrier towards scale-up of Ca-based carbon dioxide capture materials".Ceramics International 49.17(2023):28538-28542.