A method for preparing delta-manganese dioxide by ice phase photochemistry
The preparation of δ-MnO2 under low-temperature conditions by ice-phase photochemical method utilizes the freeze-concentration effect and photochemical oxidation synergistic reaction to solve the problems of high energy consumption and insufficient environmental friendliness in the preparation of δ-MnO2 in the existing technology, and realizes green and controllable δ-MnO2 synthesis.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing methods for preparing δ-MnO2 suffer from harsh reaction conditions, reliance on high temperature and pressure or strong oxidants, high energy consumption, complex processes, difficulty in process control, and insufficient environmental friendliness, which limit their industrial application in high-end catalysis and energy fields.
A photochemical method based on ice phase was adopted, utilizing the freeze-concentration effect and photochemical oxidation to synergistically drive the reaction, and δ-MnO2 was prepared under low temperature conditions. The generation of δ-MnO2 was achieved by photo-treating the halide and Mn(II) redox reaction in an ice phase environment.
It achieves the controllable synthesis of δ-MnO2 under conditions without high temperature and pressure or strong oxidants, reduces energy consumption, simplifies the process, and improves reaction efficiency. It has green and environmentally friendly characteristics and is suitable for green synthesis of materials in cold regions and low-energy chemical industry.
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Figure CN122403513A_ABST