Solar Photovoltaic Electrochemical Reaction System is a reaction device composed of photovoltaic power generation system, reaction system, and control system, which converts solar energy into chemical energy.
The electrodes used in Nanjing University's custom solar photovoltaic electrochemical reaction system are large-sized electrodes, with an effective anode area of up to 1 m², resulting in a considerable reaction rate.
In addition, the electrodes and photovoltaic panels rotate at the same frequency, with the added function of tracking the sun's position, ensuring high light efficiency, and achieving a hydrogen production rate of up to 15 L/h.
The system is also equipped with a high-definition camera, which, when connected via Wi-Fi, allows real-time monitoring of parameters and on-site microscopic observation of the generated hydrogen.
| Electrode Size | Anode | 1 m² |
| Cathode | 0.5 m² | |
| Power Output | Current | 0~50 A |
| Voltage | Voltage 0~12 V | |
| Proton Exchange Membrane | DuPont Proton Exchange Membrane | |
| Reactor Size | 1760 mm × 820 mm × 30 mm | |
| 725 mm × 820 mm × 30 mm | ||
| System Size | Footprint | 1850 mm× 1850 mm |
| Weight | 200 kg | |
| Angle Adjustment Range | 0~50°, can track the sun, photovoltaic panel and reaction chamber rotate at the same frequency | |
| Liquid Flow Rate | 0~2 L/min | |
| Hydrogen Production Rate | 15 L/h | |
Solar Photovoltaic Electrochemical Reaction System converts solar energy into electrical energy through the photovoltaic power generation system, stores it in the battery, and adjusts the output current of the battery through the voltage control power module to meet the reaction conditions. The reaction module can use photoelectrochemical reaction or electrochemical reaction to decompose water into hydrogen and oxygen, achieving the final energy conversion. The control system can control reaction conditions and monitor reaction status. This green and sustainable hydrogen production method not only helps reduce greenhouse gas emissions but also provides endless possibilities for future energy reserves.
The main structure of the Solar Photovoltaic Electrochemical Reaction System is shown in the figure:
Solar Photovoltaic Electrochemical Reaction System is an instrument that can provide environmentally friendly and efficient hydrogen production capacity, with a wide range of applications. It can not only provide hydrogen for green energy but also be applied in fuel cells, energy storage systems, industrial production, and other fields.
1. Sun Tracking
The photovoltaic panel of the Solar Photovoltaic Electrochemical Reaction System is equipped with an irradiance detector, which can real-time measure the light irradiance intensity in the environment where the photovoltaic panel is located. According to the irradiance intensity, adjust the inclination angle of the photovoltaic panel to maximize the utilization of solar energy.
2. Efficient Utilization
The reactor of the Solar Photovoltaic Electrochemical Reaction System is of a plate structure, which can effectively increase the surface area of the electrode catalytic material, allowing the catalyst to more effectively contact the reactants. The thin-layer structure of the reactor can reduce the problem of uneven distribution of reactants caused by low diffusion rate, reduce the occurrence of side reactions, and improve product selectivity. The flow system of the reactor can improve the rate of electron and proton transfer during the catalytic process, thereby increasing the reaction rate.
3. Energy-Saving and Environmentally Friendly
The required electrical energy of the Solar Photovoltaic Electrochemical Reaction System comes from the sun, and the reaction process does not produce greenhouse gases. Compared with other methods of electricity production, such as thermal power generation, the environmental impact of photovoltaic power generation is lower, making it known as "green electricity." The electricity produced by the photovoltaic (electrochemical) reaction is used to generate clean energy hydrogen, in line with the concept of sustainable development.
4. Real-Time Monitoring
The Solar Photovoltaic Electrochemical Reaction System can real-time online monitor parameters such as irradiance intensity, voltage, current, hydrogen production, pH value, and temperature to adjust reaction conditions and optimize reaction results.
5. Graded Circulation
The Solar Photovoltaic Electrochemical Reaction System uses a micro water pump to drive liquid flow, ensuring sufficient contact between the reaction solution and the electrode. At the same time, the product end is equipped with a gas pump to timely separate and collect the gas products generated during the reaction process from the liquid, effectively improving the circulation efficiency and reaction rate.
6. Flexible Design
The Solar Photovoltaic Electrochemical Reaction System can customize reactor size, circulation power system, and monitoring system according to requirements to meet the needs of different application scenarios.
