A research team led by Dr. Kee Young Koo from the Hydrogen Research Department at the Korea Institute of Energy Research (President Yi Chang-Keun, hereafter referred to as KIER) has developed a world-class catalyst for the reverse water–gas shift reaction, transforming carbon dioxide, a major greenhouse gas, into a key building block for eco-friendly fuels. The reverse water–gas shift (RWGS) reaction is a technology that converts carbon dioxide (CO₂) into carbon monoxide (CO) and water (H₂O) by reacting it with hydrogen (H₂) in a reactor. The resulting carbon monoxide can be combined with the remaining hydrogen to produce syngas, which serves as a building block for synthetic fuels such as e-fuels* and methanol. This makes the RWGS reaction a promising technology for driving the eco-friendly fuel industry.

A research team led by the School of Engineering of The Hong Kong University of Science and Technology (HKUST) has made significant advances in quantum rod light-emitting diodes (QR-LEDs), setting record-high efficiency level for red QR-LEDs. This innovation is poised to revolutionize next-generation display and lighting technologies, offering smartphone and television users a vibrant and enhanced visual experience.

Scientists from City University of Hong Kong (CityUHK) have recently achieved a major breakthrough in the field of photovoltaic technology, successfully developing highly efficient and durable perovskite solar cells (PSCs) suitable for outdoor environments. The inverted PSCs using this new technology not only maintain stability at temperatures as high as 85°C, meeting international industry standards, but also survive 700 cycles between -40°C and 85°C, maintaining over 98% of its initial power conversion efficiency (PCE), representing one of the best reported results.

Researchers have developed a highly sensitive method for detecting hotspots in the environment, such as bushfires or military threats, by harnessing the focussing power of meta-optical systems.

The key to the approach is innovative lens technology thinner than a human hair, which can collect and process infrared radiation from fires and other heat sources with much improved efficiency. Crucially it does not need cryogenic cooling, unlike current sensors.

The result is sensor technology that promises to enhance devices in both the civilian and military spheres, said Dr Tuomas Haggren, lead researcher on the project.

Composite polymer electrolytes (CPEs) offer a promising solution for all-solid-state lithium-metal batteries (ASSLMBs). However, conventional nanofillers with Lewis-acid–base surfaces make limited contribution to improving the overall performance of CPEs due to their difficulty in achieving robust electrochemical and mechanical interfaces simultaneously. Here, by regulating the surface charge characteristics of halloysite nanotube (HNT), we propose a concept of lithium-ion dynamic interface (Li⁺-DI) engineering in nano-charged CPE (NCCPE). Results show that the surface charge characteristics of HNTs fundamentally change the Li⁺-DI, and thereof the mechanical and ion-conduction behaviors of the NCCPEs. Particularly, the HNTs with positively charged surface (HNTs⁺) lead to a higher Li⁺ transference number (0.86) than that of HNTs⁻ (0.73), but a lower toughness (102.13 MJ m⁻³ for HNTs⁺ and 159.69 MJ m⁻³ for HNTs⁻). Meanwhile, a strong interface compatibilization effect by Li⁺ is observed for especially the HNTs⁺-involved Li⁺-DI, which improves the toughness by 2000% compared with the control. Moreover, HNTs⁺ are more effective to weaken the Li⁺-solvation strength and facilitate the formation of LiF-rich solid–electrolyte interphase of Li metal compared to HNTs⁻. The resultant Li|NCCPE|LiFePO₄ cell delivers a capacity of 144.9 mAh g⁻¹ after 400 cycles at 0.5 C and a capacity retention of 78.6%. This study provides deep insights into understanding the roles of surface charges of nanofillers in regulating the mechanical and electrochemical interfaces in ASSLMBs.

Amidst the decline of reefs worldwide, UC Riverside scientists have launched a $1.1 million project to uncover how coral regains life-giving algae after suffering from heat stress.