搜索结果: 46-60 共查到“国际动态 化学工程”相关记录76条 . 查询时间(2.849 秒)
New research published in Nature Physics details the relationship between a disordered material’s individual particle arrangement and how it reacts to external stressors. The study also found that the...
康文兵、李海平老师课题组在半导体光催化技术实现太阳能的高效利用领域取得重要进展。采用水热合成的三聚氰胺/三聚氰酸超分子复合物为前驱体，在硅油辅助下，合成了一种高结晶性氮化碳薄片构建的多孔纳米管(cPCNt)(图1)。这种纳米管展现出优异的光催化水分解性能，其结晶性和表面积都得到显著提升，并且还可以通过调整硅油的黏度和用量来调节材料的结晶性和比表面积，从而找到最佳平衡点，实现光催化活性的最优化(图2...
In the endless quest to pack more energy into batteries without increasing their weight or volume, one especially promising technology is the solid-state battery. In these batteries, the usual liquid ...
An electrochemical reaction that splits apart water molecules to produce oxygen is at the heart of multiple approaches aiming to produce alternative fuels for transportation. But this reaction has to ...
A Cornell-led collaboration aims to energize the development of more sustainable pharmaceutical products by employing electrochemistry to stitch together simple carbon molecules and form complex compo...
南京工业大学环境科学与工程学院张永军教授团队采用微生物法，首次制备了锰钴复合氧化物(Bio-FeMnCoOx)，探索了生物培养条件、制备条件、掺杂钴等因素对催化性能的影响，并研究了该材料催化过硫酸盐降解莫西沙星的机理。研究表明，生物制备而成的催化剂为弱结晶材料，具有较大的比表面积和丰富的金属价态，催化活性远高于同类催化剂，产生了大量硫酸根自由基（SO4•-）、和单线态氧（1O2）。该研...
Cornell researchers have uncovered the source of a persistent problem limiting the durability of sodium-ion batteries, providing manufacturers with new strategies for powering the 21st century.
Conventional batteries are a lot like camels. They’re great for storage and transportation, but they’re not exactly speedy.
Cornell chemists have discovered a class of nonprecious metal derivatives that can catalyze fuel cell reactions about as well as platinum, at a fraction of the cost.
Lithium-air batteries were thought promising in the 1970s as a potential power source for electric vehicles, offering energy densities that rival gasoline and significantly surpass conventional lithiu...
New atomically-thin material could improve efficiency of light-based tech（图）
原子薄材料 光基技术 太阳能电池
2021/12/20
Solar panels, cameras, biosensors and fiber optics are technologies that rely on photodetectors, or sensors that convert light into electricity. Photodetectors are becoming more efficient and affordab...
Researchers have developed a rechargeable lithium-ion battery in the form of an ultra-long fiber that could be woven into fabrics. The battery could enable a wide variety of wearable electronic device...
Selective separation could help alleviate critical metals shortage（图）
选择性分离 关键金属短缺 加工稀土 材料分离
2021/12/17
New processing methods developed by MIT researchers could help ease looming shortages of the essential metals that power everything from phones to automotive batteries, by making it easier to separate...
In the ongoing race to develop ever-better materials and configurations for solar cells, there are many variables that can be adjusted to try to improve performance, including material type, thickness...
In their quest to discover effective new medicines, scientists search for drug-like molecules that can attach to disease-causing proteins and change their functionality. It is crucial that they know t...