Chemical Research in Chinese Universities ›› 2026, Vol. 42 ›› Issue (4): 1193-1210.doi: 10.1007/s40242-026-6139-4

• Review Articles • Previous Articles     Next Articles

Two-dimensional Amorphous Metal Oxides for Electrochemical Energy Storage and Conversion

YANG Kai1, ZHENG Tian2, FU Yikang1, GUO Tianqi2, HU Pengfei3, GUO Lin1   

  1. 1. School of Chemistry, Beihang University, Beijing 100191, P. R. China;
    2. International Institute for Interdisciplinary and Frontiers, Beihang University, Beijing 100191, P. R. China;
    3. Research Institute of Aero-Engine, Beihang University, Beijing 100191, P. R. China
  • Received:2026-06-11 Revised:2026-07-10 Online:2026-08-01 Published:2026-07-28
  • Contact: GUO Tianqi,E-mail:guotianqi@buaa.edu.cn;HU Pengfei,E-mail:hupengfei@buaa.edu.cn;GUO Lin,E-mail:guolin@buaa.edu.cn E-mail:guotianqi@buaa.edu.cn;hupengfei@buaa.edu.cn;guolin@buaa.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China for Excellent Young Scientists (Overseas), the National Natural Science Foundation of China (Nos. 52572197, 52522315, 51532001, 52371147), the Fundamental Research Funds for the Central Universities, China (Nos. 501RCQD2025158001, 501QYJC2026158002, JKF-2025060787623), the Postdoctoral Fellowship Program of China Postdoctoral Science Foundation (No. GZC20242151), and the China Postdoctoral Science Foundation (No. 2025M774229).

Abstract: Amorphous nanomaterials, which combine short-range order with long-range disorder, provide defect-rich platforms for tailoring electronic structure. This review surveys the controllable synthesis of two-dimensional amorphous metal oxides (2D AMOs)—spanning top-down, topotactic, template-directed, and wet-chemical paradigms—with an emphasis on regulating the amorphous phase while preserving the 2D morphology. We then examine key structural-modification strategies, including phase engineering, single-atom anchoring, conductive hybridization, and defect manipulation. Building on these foundations, their applications in electrochemical energy storage and conversion are discussed to clarify the underlying structure-property-performance relationships. Finally, the remaining bottlenecks and future perspectives are outlined, charting a roadmap toward practical, scalable use.

Key words: Two-dimensional, Amorphous structure, Metal oxide, Energy storage, Energy conversion