搜索结果: 16-30 共查到“国际动态 物理化学”相关记录99条 . 查询时间(2.688 秒)
俄研发出电化学制备金属锝新方法
俄 电化学 金属锝 新方法
2020/8/5
俄罗斯门捷列夫化工大学、俄罗斯科学院金物理化学与电化学研究所和俄罗斯国家科学中心库尔恰托夫研究所的科研人员,利用电化学原理研发出从锝化合物溶液中制备锝的新方法。相关研究成果发表在《电分析化学》期刊上。
新技术探测液—液界面化学过程(图)
新技术 探测 液—液 界面化学
2020/8/6
美国能源部橡树岭国家实验室(ORNL)研究人员捕捉到的实时测量数据,为回收钴的化学分离提供了新视角。钴是一种用于现代电池和磁铁的关键原材料。近日,发表在《ACS应用材料和界面》上的研究结果,揭示了从含有相似物质混合物的溶液中获取钴的分子动力学机制。“理解分离元素所需的分子事件是优化或创造新的、量身定制材料回收技术的关键。”ORNL化学科学部的Ben Doughty说。这项研究调查了溶剂萃取的基本化...
以色列理工学院和德国波鸿大学的两个研究小组表示,他们正在研究将光合聚光复合物的光吸收能力与光系统Ⅱ的电化学能力相结合,以此获取可再生清洁能源,即利用光合作用为未来开发可再生清洁能源。
近日,美国田纳西大学等科研机构的研究人员在Nature Plants上发表了题为“Physiological and evolutionary implications of tetrameric photosystem I in cyanobacteria”的文章,对蓝藻四聚体光系统Ⅰ的生理和进化意义进行了深入研究。光合作用可以将光能转换成化学能。光系统Ⅰ(Photosystem Ⅰ,PSI)和...
HCN通道超极化过程中的电位感受器运动(图)
HCN通道 超极化过程 电位 器运动
2019/12/19
近日,美国洛克菲勒大学等科研机构的科研人员在Cell上发表了题为“Voltage Sensor Movements during Hyperpolarization in the HCN Channel”的文章,揭示了HCN通道超极化过程中的电位感受器运动。超极化激活环核苷酸门控(hyperpolarization-activated cyclic nucleotide-gated,HCN)通道是...
Raman microspectroscopy is a laboratory technique used to produce molecular fingerprints of materials and biological specimens. However, to date, fluorescence has interfered with effective application...
Nanoparticles may have bigger impact on the environment than previously thought(图)
nanoparticle environment bigger impact on
2019/10/17
Over the last two decades, nanotechnology has improved many everyday products, from microelectronics to sunscreens. Nanoparticles (particles just a few hundred atoms in size) are ending up in the envi...
New Paper Published in Nature Communications titled, “Exact exchange-correlation potentials from ground-state electron densities”
Published titled Exact potentials electron densities
2019/10/10
The quest for accurate exchange-correlation functionals has long remained a grand challenge in density functional theory (DFT), as it describes the many-electron quantum mechanical behavior through a ...
意大利国家研究委员会电子和磁性材料研究所(CNR-IMEM)的科学家与俄罗斯、法国科学家合作,首次用聚合物开发的电化学元件(忆阻器)代替神经突触连接两个神经元,以人工方式实现了神经元之间的直接通信。该成果发表在最新一期《先进材料技术》(Advanced Materials Technologies)上。在人类大脑中,连接神经元的突触在两个神经元之间建立特定的单向信息流,这些连接是实现神经元基本功能...
韩国团队研发出新型环保氢制备技术
韩国团队 新型 环保氢 制备技术
2018/3/29
韩国科学技术研究院发布消息称,该院燃料电池研究中心研发出了环保氢制备新技术。研究成果刊登在国际学术刊物《Applied Catalysis B: Environmental》上。 作为应对全球气候变化的重要解决方案,世界各国对氢燃料汽车的关注度越来越高。目前,氢燃料大部分是利用天然气等化石燃料生产而成,污染度较高。现有工艺技术是将粉末进行物理涂抹,在此过程中需使用大量的催化剂(1~5mg/cm2)...
Scientists Get Better Numbers On What Happens When Electrons Get Wet(图)
Scientists Better Numbers Electrons Get Wet
2018/2/1
There’s a particular set of chemical reactions that governs many of the processes around us—everything from bridges corroding in water to your breakfast breaking down in your gut. One crucial part of ...
Researchers Inadvertently Boost Surface Area of Nickel Nanoparticles for Catalysis(图)
Researchers Boost Surface Area Nickel Nanoparticles Catalysis
2017/12/18
Ni nanoparticles (NPs) catalyze many chemical reactions, in which they can become contaminated or agglomerate, resulting in poorer performance. We report deposition of silica (SiO2) onto Ni NPs from t...
A quantum spin liquid(图)
quantum spin liquid
2017/11/23
A team led by Assistant Professor of Physics Fazel Tafti has created an elusive honeycomb-structured material capable of frustrating the magnetic properties within it in order to produce a chemical en...
Spray-on Electric Rainbows:Making Safer Electrochromic Inks(图)
spray-on electric rainbows making safer electrochromic inks
2017/9/5
Anyone who has a rear-view mirror that automatically dims blue in reaction to annoying high-beam headlights glaring from behind has seen an electrochromic film in action.Now, chemists at the Georgia I...
Electrolytes Made from Liquefied Gas Enable Batteries to Run at Ultra-low Temperatures
Electrolytes Liquefied Gas Batteries to Run Ultra-low Temperatures
2017/7/21
Engineers at the University of California San Diego have developed a breakthrough in electrolyte chemistry that enables lithium batteries to run at temperatures as low as -60 degrees Celsius with exce...