“空”中取氨，打开清洁能源新世界（创新汇）

Core Viewpoint - A research team from the University of Tokyo has developed a new method for synthesizing ammonia from nitrogen and water at ambient temperature and pressure, potentially revolutionizing the ammonia production process and contributing to a "nitrogen cycle society" [1][2]. Group 1: Traditional Ammonia Production Challenges - Traditional ammonia synthesis relies on the Haber process, which requires high temperature and pressure, leading to high energy consumption and carbon emissions [1]. - The current method is heavily dependent on fossil fuels for hydrogen extraction, primarily from coal and natural gas [1]. Group 2: New Ammonia Synthesis Method - The Tokyo University team previously created a thermal-driven system that bypasses hydrogen as an intermediate, achieving ammonia synthesis with a nearly 100-fold increase in efficiency compared to traditional methods [2]. - The new light-driven ammonia synthesis system utilizes an iridium-based compound to harness solar energy, allowing for ammonia production under mild conditions without CO2 emissions [2]. Group 3: Future Prospects and Challenges - The research team aims to develop an artificial nitrogenase to enhance ammonia synthesis efficiency and achieve scalability [3]. - Current challenges include improving reaction efficiency, optimizing material selection, and ensuring system durability and recyclability [3][4]. - Ammonia is viewed as a more suitable energy carrier than hydrogen due to its easier storage and transportation, making it a crucial component in the future hydrogen economy [4].