A research team led by Alexander Orowo, an associate professor of materials science and engineering at Stony Brook University in New York, has uncovered a groundbreaking discovery in hydrogen production. Their study revealed that utilizing gold nanoparticles with diameters below 1 nanometer significantly accelerates hydrogen evolution, leading to enhanced hydrogen output. This pivotal finding was published in the latest issue of the prestigious journal *ACS Catalysis B: Environmental Science*.
Orowo remarked, “Our experiments demonstrate for the first time that ultra-small metal nanoparticles—those containing fewer than 12 atoms—are highly promising in the quest to derive fuel from water." His team discovered that through nanotechnology, reducing metal ions to sizes below 1 nanometer boosts the hydrogen evolution rate during sunlight-driven hydrogen production by over 35 times compared to traditional catalytic materials.
To further elucidate these findings, Orowo collaborated with Dr. Yang Li, a computational scientist at the U.S. Department of Energy’s Brookhaven National Laboratory. Together, they discovered intriguing anomalies in the electronic properties of these minuscule particles. However, Orowo stressed that extensive research remains necessary to fully comprehend this phenomenon.
Orowo expressed optimism about the future, stating, “We’re just at the dawn of an extraordinary journey in harnessing these minute particles, each smaller than a dozen atoms, to generate clean energy. Transitioning away from fossil fuels requires us to explore sustainable alternatives, and hydrogen represents one of the most promising solutions due to its cleanliness and efficiency. Our current challenge lies in uncovering novel materials that can facilitate hydrogen production from renewable resources like water.†(By Zheng Huanbin)
This breakthrough could redefine how we approach sustainable energy solutions, offering hope for cleaner and more efficient energy systems worldwide.
Position measurement
Position sensors are used in a wide range of automation and measurement applications. A key step in selecting a suitable position sensor is understanding the requirements of sensor size, resolution, repeatability, accuracy, mounting constraints and environmental ruggedness. This paper discusses the available position sensing technologies and concludes with a key feature comparison.
Linear position sensors measure the distance between an object and a point of reference, as well as changes in position. They do this by converting displacement into an electrical output. A wide variety of measurement principles can be used to let you make precise and reliable measurements for a broad range of applications. Linear position sensors and measurement systems are used in industrial applications as well as in scientific laboratories.
Within their specified measurement range, LVDT sensors provide excellent linearity. They are capable of detecting very small changes in position and have virtually unlimited resolution. As a result, LVDT sensors are also suitable for measuring high accelerations and high measurement cycles.
Linear inductive position sensors are durable, long-lived, and especially stable under temperature fluctuations. That means they are ideal for measuring linear travel in almost any industrial setting – especially with hydraulic or pneumatic applications.
Position Measurement,Ut-81 Level Indicator,Td-1 Displacement Sensor,4000Td Position Sensor
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