Energy

Viruses in man-made environments cause public health concerns, but they are generally less studied than bacteria. A recent study led by environmental scientists from City University of Hong Kong (CityU) provided the first evidence of frequent interactions between viruses and bacteria in man-made environments. It found that viruses can potentially help host bacteria adapt and survive in nutrient-depleted man-made environments through a unique gene insertion.

A joint research team from City University of Hong Kong (CityU) and collaborators recently developed a stable artificial photocatalytic system that is more efficient than natural photosynthesis. The new system mimics a natural chloroplast to convert carbon dioxide in water into methane, a valuable fuel, very efficiently using light. This is a promising discovery, which could contribute to the goal of carbon neutrality.

Soft metal-organic polymer networks can adsorb selected molecules from gas mixtures by opening pores when the molecules bind.

Newcastle University (UK) and the Energy Research Institute at Nanyang Technological University hosted a UK-Singapore symposium funded by the UK Government in April 2023. It aimed to foster partnerships and research for widespread electric vehicle adoption. The event featured discussions on technology, economics, and policy over three days, encouraging joint collaboration in advanced electric transport research and commercialization.

Asia Research News monitors the latest research news in Asia. Some highlights that caught our attention this week are the potential of harvesting energy from rainfall, a new method of geolocation that can see underground, and how AI can use a single photo to make you dance.

- DGIST-Chungnam National University Team Creates Real-Time Digital Twin Multiphysics Model for Predicting Electrochemical and Mechanical Properties of Micro-Particles for the First Time - Cover Paper Recognition: Chosen by Prominent Journal Advanced Energy Materials

An international team of researchers from India and Singapore, led by Associate Professor Kheng Lim Goh from Newcastle University in Singpaore, has examined the impact of plastic waste management on creating a new type of clean-energy device, Tribo-electric nanogenerator. It compares recycling practices in Singapore and India, highlighting the importance of waste policies and infrastructure for successful recycling of plastics for making the clean-energy device. Challenges include contamination and decreased material quality with recycling.

An international research group has engineered a new energy-generating device by combining piezoelectric composites with carbon fiber-reinforced polymer (CFRP), a commonly used material that is both light and strong. The new device transforms vibrations from the surrounding environment into electricity, providing an efficient and reliable means for self-powered sensors.

Fragments of spherical ‘Buckyball’ molecules have stable electron-accepting ability with great practical potential.

Two undergraduate students publish papers as lead authors in the prestigious international academic journal ChemSusChem, proposing methods to improve eco-friendly hydrogen production through photoelectrochemistry

- A joint research team of Yang Kee-Jeong, Kim Dae-Hwan, and Kang Jin-Gyu at DGIST and Kim Jun-Ho at Incheon National University used admittance spectroscopy to suggest a defect energy level in the absorbing layer that deteriorated thin-film solar cell properties - The research team proposed a defect identification method to ensure high efficiency in thin-film solar cells

Cambodia is leading Southeast Asia's transition to cleaner energy. After submitting its long-term strategy for carbon neutrality to the United Nations, it is now currently working with Singapore to become a major exporter of clean energy in the region.

- Development of low-temperature, highly graphitized carbon synthesizing method that can overcome the limitations of existing fuel-cell carbon supports - Expected to be used in next-generation fuel-cell vehicles with improved generation efficiency and excellent stability - Study results will be published in ‘Applied Catalysis B: Environmental’, a top journal in the field of Environmental Science

- The world’s first technology for synthesizing high-quality and low-cost copper-graphene nanowire using intense scintillation - Implementation of high-performance transparent-flexible electronic device based on copper-graphene nanowire and publication in the international journal Nano Energy, which is renowned in the field of energy

Scientists in Singapore converted fruit waste into a solar absorber called Mxene to develop an efficient and sustainable water desalination process.

Asia Research News monitors the latest research news in Asia. Some highlights that caught our attention this week are a fish that is both transparent and multicolored, making mice grow antlers, and surgery on a very small heart.

Scientists at Malaysia’s IIUM are helping small and medium business owners in Sarawak to use technology to cut costs and improve marketing.

Shaking the compact, lightweight device generates enough electricity to power 100 LEDs.

Hi-tech electrocatalysts made from seashells and waste animal blood could help build sustainable batteries, fuel cells and other electrochemical systems.

Modifying the active layer architecture at the heart of organic solar cells brings a big leap forward in efficiency.

Bacteria living on soil and chicken manure could provide low-tech and sustainable green electricity.

An international collaboration is developing coating materials that could make windows better insulators.

An effective, stable solid-state electrochemical transistor has been developed, heralding a new era in thermal management technology.

- Elastic Triboelectric Tactile Sensor Development Using Graphene Electrode Unaffected by Elasticity - Published in 'Nano Energy' as a Technology to Produce Precise Sensors by Supplementing the Output Change Problem of Sensors Deformed by Human Activity

Pyroelectric catalysis (pyro-catalysis) can convert environmental temperature fluctuations into clean chemical energy, like hydrogen. However, compared with the more common catalysis strategy, such as photocatalysis, pyro-catalysis is inefficient due to slow temperature changes in the ambient environment. Recently, a team co-led by researchers at City University of Hong Kong (CityU) triggered a significantly faster and more efficient pyro-catalytic reaction using localized plasmonic heat sources to rapidly and efficiently heat up the pyro-catalytic material and allow it to cool down. The findings open up new avenues for efficient catalysis for biological applications, pollutant treatment and clean energy production.

Metal oxides are a promising catalyst for photoelectrochemical (PEC) water splitting to produce hydrogen as alternative energy. However, their effectiveness is restricted at low voltage. A research team led by scholars from City University of Hong Kong (CityU), Australia and Germany successfully mediated the poor charge carrier transport at low voltage by adding phosphorus to a metal oxide catalyst, which reduced energy losses during water splitting. The findings offer a potential option for achieving carbon neutrality.

Organic photovoltaics (OPVs) are a promising, economical, next-generation solar cell technology for scalable clean energy and wearable electronics. But the energy conversion loss due to the recombination of photogenerated charge carriers in OPVs has hindered further enhancement of their power conversion efficiency (PCE). Recently, researchers from City University of Hong Kong (CityU) overcame this obstacle by inventing a novel device-engineering strategy to successfully suppress the energy conversion loss, resulting in record-breaking efficiency.

Osaka Metropolitan University scientists have succeeded in synthesizing fumaric acid, a raw material for plastics, from CO2 powered by solar energy—for the first time. Typically, fumaric acid is synthesized from petroleum as a raw material to make polybutylene succinate, a biodegradable plastic, but this research shows that it can be synthesized from CO2 and biomass-derived compounds using renewable energy.

Controlling a material’s thermal conductivity can help insulate our homes, improve the performance of electronic devices, conserve power consumption in cars, and generate greater power efficiency. Now, a group of researchers has unveiled a novel mechanism that leads to further suppression of thermal conductivity in thermoelectric materials, something that will help develop new guidelines for producing high-performance thermoelectric materials.

- DGIST Department of Energy Science and Engineering Professor Lee Jong-won's team developed oxide-based solid electrolyte technology with enhanced atmospheric stability - Anticipating the development of high-performance/high-safety all-solid-state batteries... Published in ‘Energy Storage Materials’