Results 111 to 120 of about 79,570 (325)

Vanishing Friction: Progress toward Mechanistic Understanding and Potential Engineering Applications

open access: yesTribology Online
Friction and wear collectively account for nearly a quarter of the world’s energy consumption, resulting in over eight Gigatons of CO2 emissions annually.
Diana Berman, Ali Erdemir
doaj   +1 more source

Transition metal compounds and alloys: A first-principles investigation [PDF]

open access: yes, 2015
含过渡金属的化合物与合金在数据存储、光催化和能量存储与转换等领域有重要的应用,主要得益于其特定的电子结构、力学性能等性质。本论文利用基于密度泛函理论的第一性原理计算方法,选取特定的研究体系,系统地探索了过渡金属化合物与合金的电子结构(第三章)、内部原子扩散(第四章)、力学性能(第五章)以及压力与温度对其性质的影响(第六章)。 为了研究缺陷和掺杂对过渡金属氧化物电子结构的调制,我们以SrZrO3为研究对象,首先研究了内部含有有序氧空位和部分无序氧空位体系的电子结构。计算结果表明 ...
郭忠路
core  

High Energy Density Asymmetric Aqueous Supercapacitor Based on a 2D Manganese Carbide as a Positive Electrode

open access: yesAdvanced Functional Materials, EarlyView.
A circular route, involving upcycling of waste surgical masks, affords a Mn‐based layered carbide with porosity, redox activity and low work function. These features enable its effective operation as positive supercapacitor electrode in an aqueous asymmetric supercapacitor delivering 213 Wh L−1 energy density.
Debabrata Nandi   +7 more
wiley   +1 more source

Bioinspired Polypeptide Dendrimer‐Modified Thin‐Film Composite Membranes for Selective Lithium‐Magnesium Separation with DFT Insights

open access: yesAdvanced Functional Materials, EarlyView.
We fabricated a biomimetic dendrimer‐modified thin‐film nanocomposite membrane with a coordination‐assisted ion‐selective interface. pH‐responsive polypeptide sites preferentially bind Mg2+ and promote Li+ permeation, as predicted by density functional theory calculations of metal‐ligand interactions.
Mehrasa Yassari   +7 more
wiley   +1 more source

Frontier Advances of Emerging High‐Entropy Anodes in Alkali Metal‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Recent advances in microscopic morphology control of high‐entropy anode materials for alkali metal‐ion batteries. Abstract With the growing demand for sustainable energy, portable energy storage systems have become increasingly critical. Among them, the development of rechargeable batteries is primarily driven by breakthroughs in electrode materials ...
Liang Du   +14 more
wiley   +1 more source

Multiscale Hybrid Surface Topographies Orchestrate Immune Regulation, Antibacterial Defense, and Tissue Regeneration

open access: yesAdvanced Healthcare Materials, EarlyView.
Hybrid wrinkled topographies coordinate immune, tissue, and bacterial interactions. The surfaces promote osteointegration, tune macrophage polarization, and inhibit biofilm formation, highlighting a multifunctional strategy for next‐generation implant design.
Mohammad Asadi Tokmedash   +4 more
wiley   +1 more source

Direct-ink-write 3D printing of flexible all-solid-state micro-supercapacitor based on MXene-hydroxylated nanocellulose-carbon nanotubes

open access: yesCarbon Future
Micro-supercapacitors (MSCs) face significant limitations due to low energy density despite their high power density and long cycle life. In this study, single-layer Ti3C2Tx nanosheets were employed to fabricate a MXene-hydroxylated nanocellulose-carbon ...
Xi Zhang   +5 more
doaj   +1 more source

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