journal article·2023-09

Parallel Aluminum‐Cobalt Oxide Nanosheet Arrays with High‐Temperature Ferromagnetism

Leilei Chen, Rong Huang, Xiaoxing Ke, Jin Yu, Tiantian Zhang, Jean‐Luc Maurice, Jiheng Li, Kai Li, Lifeng Ni, Shuzhao Huang, Tiezhen Ren, Zhanbing He

Small· Volume 19· Issue 38
Publisher page

Abstract

Abstract Parallel nanomaterials possess unique properties and show potential applications in industry. Whereas, vertically aligned 2D nanomaterials have plane orientations that are generally chaotic. Simultaneous control of their growth direction and spatial orientation for parallel nanosheets remains a big challenge. Here, a facile preparation of vertically aligned parallel nanosheet arrays of aluminum‐cobalt oxide is reported via a collaborative dealloying and hydrothermal method. The parallel growth of nanosheets is attributed to the lattice‐matching among the nanosheets, the buffer layer, and the substrate, which is verified by a careful transmission electron microscopy study. Furthermore, the aluminum‐cobalt oxide nanosheets exhibit high‐temperature ferromagnetism with a 919 K Curie temperature and a 5.22 emu g−1saturation magnetization at 300 K, implying the potential applications in high‐temperature ferromagnetic fields.
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Research context

OpenAlex topics: Nanoporous metals and alloys · MXene and MAX Phase Materials · Supercapacitor Materials and Fabrication

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing Beijing 100083 P. R. China

Beijing Key Laboratory of Microstructure and Properties of Solids Faculty of Materials and Manufacturing Beijing University of Technology Beijing 100124 P. R. China

Shanghai Key Laboratory of Mechanics in Energy Engineering Shanghai Institute of Applied Mathematics and Mechanics School of Mechanics and Engineering Science Shanghai Frontier Science Center of Mechanoinformatics Shanghai University Shanghai 200444 P. R. China

Zhejiang Laboratory Hangzhou 311100 P. R. China

Laboratoire de Physique des Interfaces et Couches Minces (LPICM) CNRS Ecole Polytechnique Institute Polytechnique de Paris Palaiseau Cedex 91128 France

State Key Laboratory of Powder Metallurgy & Hunan Center for Electron Microscopy Central South University Changsha 410083 P. R. China

School of Chemical Engineering and Technology Xinjiang University Urumqi 830046 P. R. China

Funding

National Natural Science Foundation of China

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