Showing 41 to 50 of 307 results
23 Feb 2024
Downscaling of electronic devices, such as transistors, has reached a plateau, posing challenges for semiconductor fabrication. However, a research team led by materials scientists from City University of Hong Kong (CityU) recently discovered a new strategy for developing highly versatile electronics with outstanding performance, using transistors made of mixed-dimensional nanowires and nanoflakes. This innovation paves the way for simplified chip circuit design, offering versatility and low power dissipation in future electronics.
07 Feb 2024
Electrocatalysis plays a vital role in developing clean energy, greenhouse gas removal and energy storage technologies. A study co-led by City University of Hong Kong (CityU) researchers found that single-walled carbon nanotubes are excellent substrates for enhancing greenhouse gas conversion through molecular curvature. By using these nanotubes as support to induce strain on an electrocatalyst, the efficiency of carbon dioxide reduction to methanol can be significantly improved. This breakthrough opens avenues for developing curved molecular electrocatalysts to efficiently convert carbon dioxide (CO2), one of the key greenhouse gases, into useful chemicals and fuels, thus reducing carbon emission .
02 Feb 2024
Oxidation can degrade the properties and functionality of metals. However, a research team co-led by scientists from City University of Hong Kong (CityU) recently discovered that severely oxidized metallic glass nanotubes can attain an ultrahigh recoverable elastic strain, outperforming most conventional super-elastic metals. They also discovered the physical mechanisms underpinning this super-elasticity. Their discovery implies that oxidation in low-dimension metallic glass can result in unique properties for applications in sensors, medical devices and other nanodevices. <br />
26 Jan 2024
Traumatic brain injury (TBI) and ischemic stroke are major public health concerns and leading causes of death and disability worldwide. A research team led by CityU neuroscientists recently discovered that low-dose ionizing radiation (LDIR), such as X-ray irradiation, can reduce lesion size and reverse motor deficits in TBI and ischemic stroke mice, demonstrating that LDIR may be a promising therapeutic strategy for TBI and stroke patients.
19 Jan 2024
Various cities are fortifying the resilience of their urban infrastructure networks to tackle potential unforeseen disruptions, particularly due to extreme weather resulting from climate change. Recently, researchers from City University of Hong Kong (CityU) used the Hong Kong public transport system as a case study to reveal the crucial role of interconnections between different transportation modes in bolstering system resilience against adverse disruptions. This study provides valuable insights into how interconnectedness significantly improves network robustness, presenting a new approach for designing urban network-like infrastructure worldwide.
05 Jan 2024
Hydrogen energy has emerged as a promising alternative to fossil fuels, offering a clean and sustainable energy source. However, the development of low-cost and efficient catalysts for hydrogen evolution reaction remains a crucial challenge.
18 Dec 2023
The State Key Laboratory of Marine Pollution (SKLMP) at CityU was awarded the prestigious Gold Award at the Hong Kong Green Innovations Award (HKGIA) as part of the 2022 Hong Kong Awards for Environmental Excellence (HKAEE). This recognition highlights the remarkable achievements of the CityU team in the field of green innovation.
14 Dec 2023
A research team led by Professor Chan Chi-hou, Chair Professor of Electronic Engineering at City University of Hong Kong (CityU), achieved an unprecedented advance in antenna technology by making possible the manipulation of all five fundamental properties of electromagnetic waves through software control.
07 Dec 2023
A research team led by City University of Hong Kong (CityU) recently engineered a bimetallic alloy as an ultrathin nanocatalyst that can deliver greatly improved electrochemical performance for generating ammonia from nitrate, offering great potential for obtaining carbon-neutral fuel in the future.
29 Nov 2023
A research team at City University of Hong Kong (CityU) has developed a novel performance evaluation method, which marks a major breakthrough in tackling a century-old problem of evaluating blocking probabilities in queueing systems with overflow, providing ways to allocate limited resources better.