让“死”锂复活,恢复电池活力 诸平 Fig. 1 An animation shows how charging and discharging a lithium battery test cell causes an island of “dead” (or detached) lithium metal to creep back and forth between the electrodes. The movement of lithium ions back and forth thro ...
麻省理工学院科学家揭开了更强金属的秘密 诸平 Fig. 1 Researchers at MIT have discovered exactly how the tiny crystalline grains that make up metal form when subjected to an extreme deformation process. This can lead to ways of producing lighter, harder, and stronger versions of metals s ...
首次创造出长期假设的“下一代神奇物质” 诸平 The crystal structure of a layer of graphyne. Credit: Yiming Hu 据美国科罗拉多大学博尔德分校( University of Colorado at Boulder 简称 CU Boulder ) 2022 年 5 月 21 日提供的消息,研究人员首次创造出长期假设的“下一代神奇物质” 石墨 ...
中法化学家开发了一种由葡萄糖和柠檬酸制成无毒胶合板胶 诸平 Fig. 1 Plywood and other composite wood products are used extensively in home construction, furniture, and decor. They are often made using glues and resins that contain potentially carcinogenic chemicals such as formaldehyde. ...
极高压条件下的首次材料合成与性质研究 诸平 Structures and properties of materials at extremely high pressures and temperatures are still largely terra incognita. Prof. Leonid Dubrovinsky and his research partners use a laser-heated two-stage diamond anvil cell they constructed for ...
量子力学可以解释为什么 DNA 会自发变异 诸平 3D-model of DNA. Credit: Michael Ströck/Wikimedia/ GNU Free Documentation License 据英国萨里大学( University of Surrey ) 2022 年 5 月 5 日提供的消息,量子力学可以解释为什么 DNA 会自发变异( Quantum mechanics could explain wh ...
单向超导体的突破性发现——昔日被认为是不可能的 诸平 Fig. 1 Artist Impression of a superconducting chip. Credit: TU Delft Fig. 2 Associate Prof. Dr. Mazhar Ali (middle) with his fellow researchers Dr. Yaojia Wang (left) and Dr. Heng Wu (right). 据荷兰代尔夫特理工大学 ...
骨骼,像预应力混凝土一样构造 诸平 Stressed by mineral particles: Scanning electron microscopy shows that nanocrystals of strontium carbonate have become embedded within the collagen fibres of a tendon. These put the collagen under strain in the same way as hydroxyapatite particles, whic ...
吃塑料之酶可消除数十亿吨的填埋塑料垃圾 诸平 Fig. 1 Credit: Unsplash/CC0 Public Domain Fig. 2 Includes time lapse of plastic degradation over 48-hour period. Credit: The University of Texas at Austin / Cockrell School of Engineering 塑料应用非常广泛,但是回收利用十分有 ...