Abstract
Ammonia synthesis using low-power consumption and eco-friendly methods has attracted increasing attention. Here, based on the Tesla turbine triboelectric nanogenerator (TENG), we designed a simple and effective self-powered ammonia synthesis system by N2 discharge. Under the driving of the simulated waste gas, the Tesla turbine TENG showed high rotation speed and high output. In addition, the performance of two Tesla turbine TENGs with different gas path connections was systematically investigated and discussed. A controllable series-parallel connection with the control of gas supply time was also proposed. Taking advantage of the intrinsic high voltage, corona discharge in a N2 atmosphere was simply realized by a Tesla turbine TENG. With the flow of N2, the generated high-energy plasma can immediately react with water molecules to directly produce ammonia. The self-powered system achieved a yield of 2.14 μg h−1 (0.126 μmol h−1) under ambient conditions, showing great potential for large-scale synthesis.
Highlights
Developing novel energy-saving and eco-friendly methods and techniques to synthesize substances and materials is receiving increasing attention
The detailed assembly process of the Tesla turbine triboelectric nanogenerator (TENG) is shown in Fig. S3 and described in the materials and methods section
To adjust the two TENGs’ performance in the flow line, we proposed a controllable series-parallel connection mode
Summary
Developing novel energy-saving and eco-friendly methods and techniques to synthesize substances and materials is receiving increasing attention. Since the triple bond of N2 is extremely stable, various attempts and efforts have been made to break it under mild conditions, such as biological catalytic[3], electrocatalytic[4,5,6,7,8], photocatalytic[8,9], and discharging methods[10,11,12,13]. Taking advantage of the intrinsic property of high voltage, a strong electric field can be built to break chemical bonds, which is convenient for N2 fixation[32,33]. With the help of an appropriate configuration of the TENG, the discharge process can become self-powered
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