Results 11 to 20 of about 46,081 (250)

Active oxygen species mediate the iron-promoting electrocatalysis of oxygen evolution reaction on metal oxyhydroxides

Nature Communications, 2023
Iron is an extraordinary promoter to impose nickel/cobalt (hydr)oxides as the most active oxygen evolution reaction catalysts, whereas the synergistic effect is actively debated. Here, we unveil that active oxygen species mediate a strong electrochemical
Qu Jiang, Sihong Wang, Chaoran Zhang, Ziyang Sheng, Haoyue Zhang, Ruohan Feng, Yuanman Ni, Xiaoan Tang, Yichuan Gu, Xinhong Zhou, Seunghwa Lee, Di Zhang, Fang Song   +12 more
doaj   +1 more source

Construction of SnO2−Graphene Composite with Half-Supported Cluster Structure as Anode toward Superior Lithium Storage Properties

Scientific Reports, 2017
Inspired by nature, herein we designed a novel construction of SnO2 anodes with an extremely high lithium storage performance. By utilizing small sheets of graphene oxide, the partitioned-pomegranate-like structure was constructed (SnO2@C@half-rGO), in ...
Chengling Zhu, Zhixin Chen, Shenmin Zhu, Yao Li, Hui Pan, Xin Meng, Muhammad Imtiaz, Di Zhang   +7 more
doaj   +1 more source

Superflexible and Lead-Free Piezoelectric Nanogenerator as a Highly Sensitive Self-Powered Sensor for Human Motion Monitoring

Nano-Micro Letters, 2021
For traditional piezoelectric sensors based on poled ceramics, a low curie temperature (T c) is a fatal flaw due to the depolarization phenomenon. However, in this study, we find the low T c would be a benefit for flexible piezoelectric sensors because ...
Di Yu, Zhipeng Zheng, Jiadong Liu, Hongyuan Xiao, Geng Huangfu, Yiping Guo   +5 more
doaj   +1 more source

Metal Matrix Composites

Encyclopedia
Metal matrix composites (MMCs) are engineered multiphase materials in which a continuous metallic matrix contains deliberately introduced reinforcing phases. Their properties arise from the combined effects of the matrix, reinforcement, interface, processing route and spatial architecture.
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Low-Temperature Soft-Cover-Assisted Hydrolysis Deposition of Large-Scale TiO2 Layer for Efficient Perovskite Solar Modules

Nano-Micro Letters, 2018
Perovskite solar cells with TiO2 electron transport layers exhibit power conversion efficiency (PCE) as high as 22.7% in single cells. However, the preparation process of the TiO2 layer is adopted by an unscalable method or requires high-temperature ...
Jinjin He, Enbing Bi, Wentao Tang, Yanbo Wang, Xudong Yang, Han Chen, Liyuan Han   +6 more
doaj   +1 more source

Smart Mechanical Powder Processing for Producing Carbon Nanotube Reinforced Aluminum Matrix Composites

KONA Powder and Particle Journal, 2021
The central concern in the fabrication of carbon nanotube (CNT) reinforced metal composites is the well balance between uniform dispersion and structural integrity of CNTs.
Behzad Sadeghi, Genlian Fan, Zhanqiu Tan, Zhiqiang Li, Akira Kondo, Makio Naito   +5 more
doaj   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

Low-temperature sequential deposition for efficient inverted perovskite solar cells

Nature Communications
Inverted perovskite solar cell has made significant progress in recent years. Although two-step sequential deposition shows the benefits to obtain higher quality large-size perovskite crystals, the high annealing temperature, which is required to achieve
Mengjiong Chen, Zhenzhen Qin, Ziyang Zhang, Wenxiang Xiang, Yingming Liu, Chuang Tian, Siyuan Chen, Yanbo Wang, Liyuan Han   +8 more
doaj   +1 more source

A Biocompatible, Stimuli-Responsive, and Injectable Hydrogel with Triple Dynamic Bonds

Molecules, 2020
Injectable hydrogels have attracted growing interests as promising biomaterials for clinical applications, due to their minimum invasive implanting approach and easy-handling performance. Nevertheless, natural biomaterials-based injectable hydrogels with
Yujie Chen, Runjing Zhang, Baiqin Zheng, Chao Cai, Zhen Chen, Hua Li, Hezhou Liu   +6 more
doaj   +1 more source

Effectiveness of rTMS on Working Memory and Inhibitory Impairments in Patients With Post‐Stroke Executive Deficits

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Considerable efforts have been dedicated to developing effective treatments for post‐stroke executive impairment (PSEI), among which repetitive transcranial magnetic stimulation (rTMS) has shown great potential. This study aimed to investigate the therapeutic effects of high‐frequency rTMS on working memory (WM) and response ...
Mengting Lao, Rongwei Du, Zhujun Wang, Yang Gao, Meiling Cheng, Xianglong Wang, Wen Wu   +6 more
wiley   +1 more source