Carbon dioxide adsorption of two-dimensional carbide MXenes

By Bing-xin Wang, Aiguo Zhou, Fanfan Liu, Jianliang Cao, Libo Wang, Qianku Hu. Journal of Advanced Ceramics, 2018

168 citations recorded by the source corpus.

Two-dimensional carbide MXenes (Ti3C2Tx and V2CTx) were prepared by exfoliating MAX phases (Ti3AlC2 and V2AlC) powders in the solution of sodium fluoride (NaF) and hydrochloric acid (HCl). The specific surface area (SSA) of as-prepared Ti3C2Tx was 21 m2/g, and that of V2CTx was 9 m2/g. After intercalation with dimethylsulfoxide, the SSA of Ti3C2Tx was increased to 66 m2/g; that of V2CTx was increased to 19 m2/g. Their adsorption properties on carbon dioxide (CO2) were investigated under 0–4 MPa at room temperature (298 K). Intercalated Ti3C2Tx had the adsorption capacity of 5.79 mmol/g, which is close to the capacity of many common sorbents. The theoretical capacity of Ti3C2Tx with the SSA of 496 m2/g was up to 44.2 mmol/g. Additionally, due to high pack density, MXenes had very high volume-uptake capacity. The capacity of intercalated Ti3C2Tx measured in this paper was 502 V·v–1. This value is already higher than volume capacity of most known sorbents. These results suggest that MXenes have some advantage features to be researched as novel CO2 capture materials.

Subfields: Materials Chemistry, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/5b7bb13213dd0c2759589e050db42611696f650f

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Materials Chemistry

  1. J. Rosen
  2. P. Persson
  3. P. Eklund
  4. Jun Lu
  5. Qing Huang
  6. L. Hultman
  7. Zhifang Chai
  8. Mian Li

In Renewable Energy, Sustainability and the Environment

  1. L. Hultman

Citations in the corpus