Polymer Template Synthesis of CuOx/Clay Nanocomposites with Controllable CuOx Formation

Author:

Takeuchi Yuki1,Ohkubo Takahiro1ORCID

Affiliation:

1. Inorganic Chemistry Laboratory, Graduate School of Natural Science & Technology Okayama University 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan

Abstract

AbstractMetal oxides have the excellent functions including high thermal stability, electrical properties, catalytic performance, and adsorption properties of acid gases such as CO2 via the acid‐base interactions. However, they suffer from low reserves, porosity control, and low adsorption efficiency per weight compared with lightweight materials including carbon and silica. To solve these issues, various methods for supporting metal oxides on porous carriers, such as decomposition‐precipitation and impregnation, have been investigated, but controlling the formation of metal oxide on clay nanosheets remains as a challenge. Herein, we developed a soft‐template method for supporting metal oxide (CuOx) nanoparticles on activated clay nanosheets. The intercalation of polyethyleneimine (PEI)−Cu2+ complexes between the layers of clay nanosheets followed by calcination to construct CuOx and remove the PEI templates afforded CuOx/clay nanocomposites. The constructed CuOx/clay nanocomposites had the close porosity to that of clay. Tuning the Cu2+/PEI ratio in PEI−Cu2+ complex allowed to control CuOx states (loadings, particle sizes, etc.). Tuning of the supporting conditions allowed constructing a structure suitable for CO2 uptake. These findings will contribute to the development of the material science of metal oxide nanoparticles and their hybrid materials in diverse fields including CO2 adsorbents, energy devices, and catalysts.

Funder

Ministry of Education, Culture, Sports, Science and Technology

Publisher

Wiley

Subject

General Chemistry

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Efficient immobilization of iodide from aqueous solution by Cu2O/Cu modified shungite;Journal of Radioanalytical and Nuclear Chemistry;2023-11-28

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