Results 71 to 80 of about 4,501 (228)

Serial protein crystallography in an electron microscope

Nature Communications, 2020
For conventional three-dimensional microcrystal electron diffraction (3D ED/MicroED), a crystal is slowly rotated under an electron beam, leading to inevitable accumulation of radiation damage during data collection.
Robert Bücker, Pascal Hogan-Lamarre, Pedram Mehrabi, Eike C. Schulz, Lindsey A. Bultema, Yaroslav Gevorkov, Wolfgang Brehm, Oleksandr Yefanov, Dominik Oberthür, Günther H. Kassier, R. J. Dwayne Miller   +10 more
doaj   +1 more source

NMR of magnetically oriented microcrystals

Solid State Nuclear Magnetic Resonance
We review solid-state NMR of magnetically oriented microcrystals. Three-dimensional alignment makes experiments virtually equivalent to single-crystal NMR possible even if the sample of interest is polycrystalline. This leads to characterization of electronic structure through determination of chemical shift and electric-field gradient tensors.
Ryosuke Kusumi, Kazuyuki Takeda, Tsunehisa Kimura   +2 more
openaire   +2 more sources

Insights Into the Effect of Humic Acids Extraction From Coal on Hard Carbon Microstructure and Sodium Storage Properties

Carbon Energy, EarlyView.
This study employs a simple solid‐phase alkali‐oxygen oxidation (SAO) method to extract inherent components (humic acids) from coal. We successfully extracted yellow, brown, and black humic acids by adjusting the amount of alkali. Among them, brown humic acid extraction created abundant ultra‐micropores and closed pores, greatly enhancing sodium ...
Ruizhen Song, Yakun Tang, Xiaojun Lv, Jingjing Diao, Yue Zhang, Wenhai Zhang, Lang Liu, Limin Deng, Yuliang Cao   +8 more
wiley   +1 more source

Porous Carbon Materials for Carbon Dioxide Capture

Carbon Energy, EarlyView.
This work aims to address the current status and challenges associated with the regulation of pore structures, as well as the influence of pore structures on CO2 capture. Systematic quantitative analysis of structure–property relationships, combined with machine learning approaches, can effectively evaluate the contributions of structural ...
Zhifu Liu, Chuhan Fu, Tao Qi, Hui Zhou, Guangping Hao, Yalou Guo, Guoping Hu   +6 more
wiley   +1 more source

Harnessing Native Al/Si Impurities in Bamboo Black Liquor for Self‐Templated Closed‐Pore Hard Carbon Anodes

Carbon Energy, EarlyView.
A scalable strategy utilizing native impurities in bamboo lignin black liquor is proposed to construct a closed‐pore, rich hard carbon. Controlled impurity removal and high‐temperature reconstruction enable the conversion of open pores into abundant closed pores, thereby promoting sodium cluster storage.
Zhenbing Sun, Qi Yu, Yujun Li, Lin Zhao, Zhenrui Li, Haifeng Zuo, Qinxuan Shi, Zehui Jiang, Qianli Ma, Xing'e Liu   +9 more
wiley   +1 more source

Mass Production of Waste PVC‐Mediated Bamboo‐Derived Hard Carbon for Ultra‐Long Life Sodium Storage

Carbon Energy, EarlyView.
By a scalable PVC‐mediated bifunctional strategy, pre‐carbonized micrometer bamboo powder is converted into a functionally partitioned hard carbon anode with distinct domains. Featuring abundant internal closed pores and surface sp2‐enriched graphitic regions, this anode delivers exceptional high‐rate long‐cycle stability, retaining 93% capacity after ...
Wenjing Xu, Zhangliu Tian, Meng Wang, Song Liang, Yueyang Wang, YuSha Gao, Yinjie Wan, Ce Zhou, Yue Tan, Le Wu, Fuqiang Huang   +10 more
wiley   +1 more source

Polarized three-photon-pumped laser in a single MOF microcrystal

Nature Communications, 2016
Higher-order multi-photon pumped polarized lasers promise application in future optoelectronic and biomedical applications. Here, the authors demonstrate a polarized three-photon pumped (3PP) microcavity laser in a single host-guest composite MOF crystal
Huajun He, En Ma, Yuanjing Cui, Jiancan Yu, Yu Yang, Tao Song, Chuan-De Wu, Xueyuan Chen, Banglin Chen, Guodong Qian   +9 more
doaj   +1 more source

A case of extensive synovial involvement by tophaceous gout

South African Journal of Radiology, 2010
Gout is the most common form of microcrystal arthropathy that results in deposition of uric acid crystals in and around the joints and soft tissues. The most common cause is decreased uric acid clearance by the kidneys. The radiological manifestations of
Nausheen Khan, Irma van de Werke, Farzanah Ismail, Peter F Levay   +3 more
doaj   +1 more source

Comparative Analysis of Metal Preloading Technologies in Batteries and Capacitors

EcoEnergy, EarlyView.
Metal preloading strategies play an important role in efficient batteries and hybrid capacitors to compensate for the consumed metals at the first discharge. This article reviews recent progress in preloading technologies in lithium‐ion and other metal‐ion systems.
Xuexue Pan, Yu Zhang, Zhazira Supiyeva, Qamar Abbas   +3 more
wiley   +1 more source

Coupling Selective Organic Oxidation With Hydrogen Evolution Over Metal Halide Perovskite Photocatalysts: Halide‐Dependent Design, Mechanisms, and Stability Challenges

EcoEnergy, EarlyView.
This Review highlights how metal halide perovskites enable coupled selective organic oxidation and hydrogen evolution under visible light. It summarizes halide‐dependent design principles, surface engineering strategies, reaction mechanisms, and stability challenges, providing guidance for developing efficient and durable photocatalytic systems ...
Jutarat Jitrada, Lizhen Liu, Patchanita Thamyongkit, Yanfa Yan, Jun Huang   +4 more
wiley   +1 more source