Advanced Energy Materials

Revolutionizing Hydrogen Production from Seawater: NTHU's Breakthrough with Crown Ether

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Wednesday, November 15, 2023
Research, Sustainability, Alternative Energy, Energy, Environment, University, Education, Green Technology, Science, Chemicals, Plastics, Manufacturing, Other Science, Electron, Carbon, Advanced Energy Materials, National Tsing Hua University, Hydrogen, NTHU, Chemical engineering, Multimedia, Doctor of Philosophy, Sun, CE, Water resources, Chemical substance, Seawater, Crown ether, Professor, Sunlight, Lithium

The team’s innovative use of Crown Ether (CE) to capture sodium ions in seawater has significantly improved both the rate and yield of hydrogen production, marking a significant advancement in the quest for green hydrogen.

Key Points: 
  • The team’s innovative use of Crown Ether (CE) to capture sodium ions in seawater has significantly improved both the rate and yield of hydrogen production, marking a significant advancement in the quest for green hydrogen.
  • View the full release here: https://www.businesswire.com/news/home/20231115086150/en/
    Prof. Ho-Hsiu Chou (right) and doctoral student Tse-Fu Huang of NTHU’s Department of Chemical Engineering use Crown Ether to capture sodium ions in seawater.
  • The use of photocatalysts for hydrogen production has faced a significant obstacle – the accumulation of sodium salts from seawater on the surface of the photocatalyst, which hinders the efficiency of hydrogen production.
  • This groundbreaking approach effectively prevents salt-induced aggregation, enabling the electrons generated during photocatalysis to seamlessly combine with hydrogen ions, resulting in efficient hydrogen gas production.

Gwangju Institute of Science and Technology Researchers Develop Highly Efficient Organometal Halide Perovskite Photoelectrodes for Water Splitting

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Thursday, August 10, 2023
B cell, Advanced Energy Materials, Hydrogen, KAIST, Heazlewoodite, OHP, Gwangju Institute of Science and Technology, Fe, Carbon, Associate, Tin(IV) oxide, Transport, PEC, Water, Natural gas, Solar energy, OER, Bias, Kinetics, Greenhouse, Electric battery

GWANGJU, China, Aug. 10, 2023 /PRNewswire/ -- Currently, hydrogen is mainly produced by natural gas, which, unfortunately, also generates greenhouse gases such as carbon dioxide as by-products. Scientists argue that hydrogen produced this way, while economical, is not truly sustainable, and thus requires a more eco-friendly approach for its generation. Photoelectrochemical (PEC) water splitting based on solar energy is one such promising approach. However, its widespread application is limited by a lack of efficient photoanodes for catalyzing the rate-limiting oxygen evolution reaction (OER), an important reaction in PEC water splitting.

Key Points: 
  • Photoelectrochemical (PEC) water splitting based on solar energy is one such promising approach.
  • However, its widespread application is limited by a lack of efficient photoanodes for catalyzing the rate-limiting oxygen evolution reaction (OER), an important reaction in PEC water splitting.
  • Recently, organometal halide perovskites (OHPs) have emerged as a promising photoanode material on this front.
  • Further, it enhanced the light-soaking stability of the OHP cell, a crucial factor in real-world PEC water splitting.

Perovskite-Based Thermochromic Windows Reduce Energy Load and Carbon Emission in Buildings

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Thursday, February 9, 2023
Sustainable energy, Thermochromism, Light, Science, CO, DOE, Advanced Energy Materials, U.S. Department of Energy, Office of Inspector General, NREL, University, Air conditioning, Golden, Colorado, Heat, The Department, Temperature, Wheeler, Colorado School of Mines, Glass, Siemens Building Technologies, Research, Renewable energy, Heating, ventilation, and air conditioning, Float glass

The thermochromic windows based on the use of perovskite materials to absorb energy from the sun shift from transparent to a visibly absorbing or reflecting state.

Key Points: 
  • The thermochromic windows based on the use of perovskite materials to absorb energy from the sun shift from transparent to a visibly absorbing or reflecting state.
  • The findings are detailed in the paper “ Thermochromic Halide Perovskite Windows with Ideal Transition Temperatures ,” which appears in the journal Advanced Energy Materials.
  • The researchers noted that in colder climates triple-pane windows provided more energy savings than the thermochromic double-pane windows, but adding a thermochromic laminate to create a triple-pane window provided the most annual energy savings compared to the highest efficiency double-pane windows.
  • NREL is the U.S. Department of Energy's primary national laboratory for renewable energy and energy efficiency research and development.

TBSI at Tsinghua SIGS developed a triboelectric vibration sensor for machinery condition monitoring

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Thursday, November 24, 2022
Student, Information technology, Data science, UC, Advanced Energy Materials, Algorithm, Machine learning, Vibration, Tsinghua Shenzhen International Graduate School, Tsinghua University, University of California, Berkeley, Doctor of Philosophy, TENG, Research, Hertz, Machine, Internet, University, Distortion, Instrumentation

This study developed a highly sensitive self-powered vibration sensor based on the triboelectric nanogenerator (TENG), which is successfully used to monitor the operating conditions of mechanical gear systems, reaching a recognition accuracy of 99.78%.

Key Points: 
  • This study developed a highly sensitive self-powered vibration sensor based on the triboelectric nanogenerator (TENG), which is successfully used to monitor the operating conditions of mechanical gear systems, reaching a recognition accuracy of 99.78%.
  • The research article entitled "A Highly Sensitive Triboelectric Vibration Sensor for Machinery Condition Monitoring" was published in the journal Advanced Energy Materials and selected as the front cover paper of the current issue ( https://doi.org/10.1002/aenm.202201132 ).
  • In this paper, a highly sensitive self-powered vibration sensor based on the TENG for machinery condition monitoring is investigated.
  • The triboelectric layers constructed by the flexible dielectric film and porous metal material effectively improve the sensitivity of the TENG sensor.

TBSI at Tsinghua SIGS developed a triboelectric vibration sensor for machinery condition monitoring

Retrieved on: 
Thursday, November 24, 2022
Student, Information technology, Data science, UC, Advanced Energy Materials, Algorithm, Machine learning, Vibration, Tsinghua Shenzhen International Graduate School, Tsinghua University, University of California, Berkeley, Doctor of Philosophy, TENG, Research, Hertz, Machine, Internet, University, Distortion, Instrumentation

This study developed a highly sensitive self-powered vibration sensor based on the triboelectric nanogenerator (TENG), which is successfully used to monitor the operating conditions of mechanical gear systems, reaching a recognition accuracy of 99.78%.

Key Points: 
  • This study developed a highly sensitive self-powered vibration sensor based on the triboelectric nanogenerator (TENG), which is successfully used to monitor the operating conditions of mechanical gear systems, reaching a recognition accuracy of 99.78%.
  • The research article entitled "A Highly Sensitive Triboelectric Vibration Sensor for Machinery Condition Monitoring" was published in the journal Advanced Energy Materials and selected as the front cover paper of the current issue ( https://doi.org/10.1002/aenm.202201132 ).
  • In this paper, a highly sensitive self-powered vibration sensor based on the TENG for machinery condition monitoring is investigated.
  • The triboelectric layers constructed by the flexible dielectric film and porous metal material effectively improve the sensitivity of the TENG sensor.

Chung-Ang University Researchers Breathe Life into Sensors with Versatile Gas Masks

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Friday, August 19, 2022
Lists of weapons, Advanced Energy Materials, Electronics, IOT, IVF, AL, Motivation, Research, Respiration, Emergency, Teng, TENG, Associate, Inhalation, Chung-Ang University, Sarin, Internet of things, Electric battery

This is achieved through sensors installed in physical objects, machines, and equipment, which detect changes in events.

Key Points: 
  • This is achieved through sensors installed in physical objects, machines, and equipment, which detect changes in events.
  • Their high energy efficiency, compatibility with readily available materials, and low cost make them a promising candidate for powering sensors.
  • "Since gas masks are extensively used in emergencies like fire and chemical gas exposure, we focused on applying TENG to a gas mask.
  • Indeed, their invention could make TENGs reinvent gas masks in the near future!

Gwangju Institute of Science and Technology Scientists Realize Large-Area Organic Solar Cells that are Low-cost, Flexible, and Efficient

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Wednesday, August 17, 2022
Advanced Energy Materials, Gwangju Institute of Science and Technology, ITO, Climate change, PCE, GIST, Wetting, Research, Zinc oxide, Garcia Live Volume 12, OSC, Electricity, Electrode, Nanoparticle, Efficiency, Renewable energy, Ceramic, Technology

GWANGJU, South Korea, Aug. 17, 2022 /PRNewswire/ -- Organic solar cells (OSCs), which make use of organic materials to convert sunlight into electricity, are an attractive candidate for future photovoltaics. This is due to several of their desirable features, such as their light weight, flexibility, malleability, and, most importantly, high power conversion efficiency (PCE). Such qualities make them ideal for a wide range of applications.

Key Points: 
  • GWANGJU, South Korea, Aug. 17, 2022 /PRNewswire/ --Organic solar cells (OSCs), which make use of organic materials to convert sunlight into electricity, are an attractive candidate for future photovoltaics.
  • Most OSCs are produced using a technique called "spin coating," which allows for high PCEs but makes for poor scalability.
  • This is where Dr. Hongkyu Kang and Prof. Kwanghee Lee from the Gwangju Institute of Science and Technology (GIST) in Korea come in.
  • This makes it easier to use ZnO for manufacturing organic solar cells and developing a printing technology for large-area solar cell technology,"says Dr. Kang.

Pusan National University Researchers Show How Radiative Coolers Can "Beat the Heat" off Solar Cells

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Monday, February 14, 2022
Advanced Energy Materials, Overalls, Research, Pusan National University, Efficiency, Electricity, Water, Temperature, RCS, Glass, Renewable energy, Wood drying, Electronic component, RC

Now, scientists from Pusan National University, Korea, successfully test their theories on what kind of solar cells work best with radiative coolers, providing novel insights for designing the next generation of highly efficient and long-lasting solar cells.

Key Points: 
  • Now, scientists from Pusan National University, Korea, successfully test their theories on what kind of solar cells work best with radiative coolers, providing novel insights for designing the next generation of highly efficient and long-lasting solar cells.
  • The materials that solar cells are made of degrade at such high temperatures and overall, the performance of the solar cells fall.
  • Now, scientists from Korea, led by Prof. Gil Ju Lee from Pusan National University, provide greater insight into this aspect.
  • A theoretical scouring of a wide range of solar cell-RC combinations showed that multi-junction solar cells (MJSCs) were most effective with an RC.

Beyond Lithium: A Systematic Search for Candidate Materials for Calcium-Ion Batteries by Chung-Ang University Scientists

Retrieved on: 
Wednesday, February 9, 2022
Argonne National Laboratory, Air pollution, Assistant, Knowledge, Sodium, Advanced Energy Materials, Institute of World Economy and International Relations, Chung-Ang University, DFT, Calcium, Research, Lithium, Innovation, Density functional theory, Zaebos: Book of Angels Volume 11, Electric battery, Aluminium

A possible way out of this conundrum is to design new types of batteries that rely on more abundant alkaline metals instead of Li.

Key Points: 
  • A possible way out of this conundrum is to design new types of batteries that rely on more abundant alkaline metals instead of Li.
  • Out of several candidates that could replace Li, calcium (Ca) stands out as a promising metal for rechargeable batteries.
  • In an effort to help identify the best candidate cathode materials for Ca-batteries, Assistant Professor Haesun Park of Chung-Ang University, Korea, and his colleagues adopted a systematic approach.
  • The scientists considered seven transition metal ions and four types of layered structures for a total of 28 candidate cathodes.