搜索结果: 316-330 共查到“国际动态 化学工程”相关记录668条 . 查询时间(1.311 秒)
用萘能开发出锂电池负极材料
萘 锂电池负极材料
2016/5/27
日本东北大学和东京大学的一个联合研究小组首次用家用防虫剂原料——大环状有机分子萘,开发出一种全固体锂离子电池的负电极材料。用这种新材料(CNAP)制成的负极电容量比石墨电极高两倍,且经过65次冲放电后仍能保持原来的大容量状态。
Appalachian Coal Ash Richest in Rare Earth Elements
Appalachian Coal Ash Rare Earth Elements
2016/6/12
A study of the content of rare earth elements in U.S. coal ashes shows that coal mined from the Appalachian Mountains could be the proverbial golden goose for hard-to-find materials critical to clean ...
This “nanocavity” may improve ultrathin solar panels,video cameras and other optoelectronic devices
nanocavity ultrathin solar panels video cameras other optoelectronic devices
2016/5/19
The future of movies and manufacturing may be in 3-D, but electronics and photonics are going 2-D; specifically, two-dimensional semiconducting materials.
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Under Pressure:New technique could make large,flexible solar panels more feasible
Under Pressure flexible solar panels
2016/5/19
A new, high-pressure technique may allow the production of huge sheets of thin-film silicon semiconductors at low temperatures in simple reactors at a fraction of the size and cost of current technolo...
Catalyst could make production of key chemical more eco-friendly
Catalyst key chemical eco-friendly
2016/4/13
The world has more carbon dioxide than it needs, and a team of Brown University chemists has come up with a potential way to put some of it to good use.The researchers developed a new composite cataly...
Kansas State University engineer builds paperlike battery electrode with glass-ceramic
Kansas State University engineer paperlike battery electrode glass-ceramic
2016/4/13
A paperlike battery electrode developed by a Kansas State University engineer may improve tools for space exploration or unmanned aerial vehicles. Gurpreet Singh, associate professor of mechanica...
迄今最轻薄太阳能电池问世厚度仅为普通光伏电池千分之一
太阳能 电池
2016/3/7
帽子、窗户、白纸、气球,倘若它们都能发电,那会怎样?美国麻省理工学院的科学家开发出一种超轻、超薄的柔性太阳能电池,能附着在许多物体之上。即便是“躺”在一个肥皂泡上也不会让泡泡变形。该材料潜力巨大,对重量较为敏感的应用,如航天器或高空探测气球等有重要价值,有望为太阳能电池应用开创出许多全新领域。
麻省理工学院称,这种太阳能电池主要由基底和涂层两部分组成,厚度仅为2微米,相当于人类头发直径的五十分之...
An interdisciplinary team of scientists has worked out a way to make electric vehicles that only are not only carbon neutral but carbon negative, capable of actually reducing the amount of atmospheric...
Imagine solar cells so thin, flexible, and lightweight that they could be placed on almost any material or surface, including your hat, shirt, or smartphone, or even on a sheet of paper or a helium ba...
Lithium battery component found to harm key soil microorganism
Lithium battery component soil microorganism
2016/2/23
The material at the heart of the lithium ion batteries that power electric vehicles, laptop computers and smartphones has been shown to impair a key soil bacterium, according to new research published...
向“甲醇经济”迈出重要一步 空气中二氧化碳可被直接转化为甲醇
二氧化碳 甲醇经济
2016/2/22
诺贝尔化学奖获得者、南加利福尼亚大学化学系教授乔治·欧拉率领团队,首次采用基于金属钌的催化剂,将从空气中捕获的二氧化碳直接转化为甲醇燃料,转化率高达79%。该研究向通往未来“甲醇经济”迈出了重要一步。相关研究成果刊登在最新一期《美国化学学会杂志》上。
新材料改变太阳能电池制作流程
晶体硅 太阳能电池制作
2016/1/29
一个国际研究团队应用一种新型复合材料,简化了硅太阳能电池的制造步骤,将无掺杂的硅电池光电转化效率提高到19%。目前大多数太阳能电池板主材料是晶体硅。晶体本身或者晶体上面沉积层会被掺杂一些其他金属原子,这些原子既能与硅原子结合产生电子,又能有选择地生成电子孔洞,两种情况都能增强晶体的导电性。经过掺杂过程的晶体硅太阳能电池转化效率可以超过20%,而未经掺杂的电池效率从未超过14%。
2015年,浙江工业大学获得美国发明专利授权2件,分别来浙江工业大学化学工程学院马淳安教授团队和理学院乐孜纯教授团队科研成果。
日本启动新一轮措施持续推动燃料电池汽车发展
日本 新一轮 燃料电池汽车
2015/12/11
2014年底,日本丰田汽车公司的首款燃料电池乘用车Mirai成功上市;2015年初,日本45座加氢站建成投入使用。标志着日本目前这一代燃料电池汽车相关技术已经进入商业化实用阶段。
欧盟锂离子电池技术研发现状
欧盟 锂离子 电池技术
2015/12/11
锂离子充电电池技术自上世纪90年代初问世以来,鉴于其优良的充电特性和高密度储能,如相对传统的镍氢电池,引起汽车制造业的广泛关注,成为目前推动电动汽车(EVs)行业发展的关键技术之一。目前,锂离子充电电池技术开发应用的挑战主要来自:偶尔可能发生的短路,尽管概率很小但有可能造成火灾或伤害事故,如每年数百万笔记本电脑或手机锂电池召回事件,甚至导致波音787客机紧急降落事件等;锂离子电池材料及生产制造成本...