Soft-templated synthesis of mesoporous nickel oxide using poly(styrene-block-acrylic acid-block-ethylene glycol) block copolymers

Hamzeh Qutaish, Shunsuke Tanaka, Yusuf Valentino Kaneti, Jianjian Lin, Yoshio Bando, Abdulmohsen Ali Alshehri, Shin Ichi Yusa, Yusuke Yamauchi, Md Shahriar A. Hossain, Jeonghun Kim

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

In this work, we report the soft-templated preparation of mesoporous nickel oxide using an asymmetric poly(styrene-block-acrylic acid-block-ethylene glycol) (PS-b-PAA-b-PEG) triblock copolymer. This block copolymer forms a micelle consisting of a PS core, a PAA shell and a PEG corona in aqueous solutions, which can serve as a soft template. Specifically, the PS block forms the core of the micelles on the basis of its lower solubility in water. The anionic PAA block interacts with the cationic Ni2+ ions present in the solution to generate the shell. The PEG block forms the corona of the micelles and stabilizes the micelles by preventing secondary aggregation through steric repulsion between the PEG chains. In terms of textural characteristics, the as-synthesized mesoporous NiO exhibits a large average pore size of 35 nm with large specific surface area and pore volume of 97.0 m2 g−1 and 0.411 cm3 g−1, respectively. It is expected that the proposed soft-templated strategy can be expanded to other metal oxides/sulfides in the future for potential applications in gas sensors, catalysis, energy storage and conversion, optoelectronics, and biomedical applications.

Original languageEnglish
Pages (from-to)16-22
Number of pages7
JournalMicroporous and Mesoporous Materials
Volume271
DOIs
Publication statusPublished - 2018 Nov 15

Bibliographical note

Funding Information:
This work was supported by an Australian Research Council (ARC) Future Fellow FT150100479 ) and JSPS KAKENHI (Grant Numbers 17H05393 and 17 K19044 ). Yusuf Valentino Kaneti is an overseas researcher under Postdoctoral Fellowship from the Japanese Society for the Promotion of Science (JSPS). This work was also supported by the Deanship of Scientific Research (DSR), King Abdulaziz University ( KEP-7-130-39 ).

Funding Information:
This work was supported by an Australian Research Council (ARC) Future Fellow FT150100479) and JSPS KAKENHI (Grant Numbers 17H05393 and 17 K19044). Yusuf Valentino Kaneti is an overseas researcher under Postdoctoral Fellowship from the Japanese Society for the Promotion of Science (JSPS). This work was also supported by the Deanship of Scientific Research (DSR), King Abdulaziz University (KEP-7-130-39).

Publisher Copyright:
© 2018 Elsevier Inc.

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials

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