In a groundbreaking study, researchers have unveiled a light-driven microfluidic control device capable of managing temperature in extreme low-temperature environments, potentially revolutionizing thermal management in various industries. The innovative system utilizes photo-responsive alkoxy-grafted azobenzene-based phase-change materials (a-g-Azo PCMs) to harvest and deliver energy efficiently, even at frigid temperatures as low as −63.92 °C.
The lead author, Jing Ge from the School of Materials Science and Engineering at Tianjin University, emphasizes the significance of their findings: “Our device not only demonstrates the ability to store and release energy but also does so in a controlled manner, which is crucial for applications in extreme environments.” This technology is particularly promising for sectors such as aerospace, pharmaceuticals, and energy storage, where maintaining specific temperature ranges is critical for product integrity and operational efficiency.
The a-g-Azo PCMs used in the device can achieve an impressive energy density of 380.76 J/g, showcasing their potential for high-energy storage solutions. The microfluidic device itself operates by harnessing light to trigger movement and heat release, enabling temperature control with a remarkable precision. During testing, the materials moved with an average velocity of 0.11 to 0.53 cm/s, effectively creating a temperature differential of 6.6 °C at −40 °C. This capability could lead to substantial advancements in energy distribution systems, where maintaining temperature stability is vital.
Ge further notes, “The ability to control energy delivery remotely opens up new avenues for energy management in sectors that face challenges due to extreme temperatures.” This remote manipulation could streamline processes in industries where traditional methods struggle, particularly in regions with harsh climates or for products sensitive to temperature fluctuations.
As the world increasingly seeks sustainable and efficient energy solutions, this research, published in the journal SmartMat, highlights an exciting intersection of materials science and energy technology. The implications for commercial applications are profound, as industries could leverage this technology to enhance product performance and reliability in extreme conditions.
For more information on this pioneering research, you can visit Tianjin University.
