The PCT-NO_x-01 is an integrated experimental platform developed for air activation, plasma nitrogen fixation and greennitrogen-cycle research. Using low-temperature plasma to efficiently activate N₂, O₂ and air molecules, it generates NO, NO₂ and other reactive nitrogen species under ambient pressure. The platform integrates a discharge reactor, dynamic gas mixing, process control and online analysis interfaces, supporting multiple discharge modes and process-parameter tuning to serve plasma nitrogen-fixation mechanism studies, NO_x synthesis, nitrate production and electricity-driven chemistry process development. With its modular design and excellent expandability, the platform provides standardized experimental infrastructure for green nitrogen-cycle technology research.

• Efficient activation: low-temperature plasma-driven air activation achieves efficient nitrogen fixation at ambient pressure andtemperature, without high temperature or high pressure.
• Modular: discharge mode, power, gas flow/ratio and reactor configuration are all adjustable for rapid reconfiguration across
  reaction systems.
• Cascade-ready: NO_x reactive species can be fed directly into downstream reactors (e.g. electrocatalytic flow cells) to build a "plasma nitrogen fixation - electrocatalytic conversion" cascade system.