Ding Xiaoming, Deng Yuan, Zhuang Qianyu, Song Xiaohui, Ma Wansen, Zhang Yuhan, Dang Jie
School of Materials Science and Engineering, Beihang University, Beijing 100191, P.R. China.
AECC Beijing Institute of Aeronautical Materials, Beijing 100095, P.R. China.
ACS Omega. 2025 Jun 26;10(26):28279-28285. doi: 10.1021/acsomega.5c03208. eCollection 2025 Jul 8.
Electrochromic materials can reversibly adjust their transmittance and reflective properties according to changes in the applied voltage, so that they can be widely used in energy-saving smart windows. However, the optical modulation range, stability, and response time of existing electrochromic materials still need to be further improved. Therefore, it is necessary to further explore electrochromic materials with better properties. In this study, we employed an efficient in situ electrodeposition method to effectively couple MXene with NiO. The combination of morphological characterization and spectroscopic tests provides compelling evidence that the synthesis of NiO-MXene composite film has been successful. Electrochemical studies demonstrate that the incorporation of TiCT MXene not only markedly enhances the electrical conductivity of the electrochromic film but also results in a notable expansion of the optical modulation range, from 47.5% to 82.8%. Furthermore, the molecular force at the composite interface allowed the NiO-MXene film to remain stable at 92.9% after 1000 cycles. This study provides a reference for the development of new electrochromic materials.
电致变色材料可根据施加电压的变化可逆地调节其透光率和反射特性，因此可广泛应用于节能智能窗户。然而，现有电致变色材料的光学调制范围、稳定性和响应时间仍需进一步提高。因此，有必要进一步探索性能更优的电致变色材料。在本研究中，我们采用了一种高效的原位电沉积方法，有效地将MXene与NiO耦合。形态表征和光谱测试的结合提供了令人信服的证据，证明NiO-MXene复合膜的合成是成功的。电化学研究表明，TiCT MXene的掺入不仅显著提高了电致变色膜的电导率，还使光学调制范围显著扩大，从47.5%扩大到82.8%。此外，复合界面处的分子力使NiO-MXene膜在1000次循环后仍能保持92.9%的稳定性。本研究为新型电致变色材料的开发提供了参考。
