We introduce an innovative in situ infrared diffuse reflection rapid detection system, endowed with a temperature regulation function. This system is adept at conducting rapid infrared spectra scanning as well as simulating the catalytic environment of diverse reaction systems. The infrared absorption spectra of four kinds of Pt-based catalysts under vacuum conditions across a wide temperature spectrum ranging from −180 to 300 °C are obtained and analysed through IR correlation spectroscopy. A key finding is the notable variance in peak intensity within Pt/CeO₂/CNT catalysts, highlighting a robust adsorption capacity for oxygen-containing groups at lower temperatures and a marked desorption at higher temperatures. By enabling rapid and accurate assessments of catalyst behavior under varying temperatures, it not only accelerates the evaluation process but also provides valuable insights that can guide the synthesis of more efficient catalysts.

中文翻译：

---

一种可调温度的催化剂原位红外漫反射光谱系统

我们推出创新的原位红外漫反射快速检测系统，具有温度调节功能。该系统擅长进行快速红外光谱扫描以及模拟不同反应体系的催化环境。通过红外相关光谱获得并分析了四种铂基催化剂在真空条件下、-180 至 300 °C 宽温度范围内的红外吸收光谱。一个关键发现是 Pt/CeO ₂ /CNT 催化剂内峰强度的显着变化，突出了在较低温度下对含氧基团的强大吸附能力和在较高温度下的显着解吸能力。通过快速准确地评估不同温度下的催化剂行为，它不仅加速了评估过程，而且还提供了宝贵的见解，可以指导更高效催化剂的合成。