نتایج جستجو برای: electrochemical exfoliation

تعداد نتایج: 54133  

Journal: :Acta ophthalmologica 1992
J Hietanen T Kivelä E Vesti A Tarkkanen

A series of 305 consecutive patients 30 years of age or older scheduled for cataract surgery was examined to find out the frequency of exfoliation syndrome, the predominant type of cataract, and the intraocular pressure status. The mean age of 222 (72.8%) females and 83 (27.2%) males was 71.7 (+/- 11.1) years (range 32 to 91 years). Exfoliation was detected in 77 (25.2%) patients. It was unilat...

2015
Dustin R. Cummins Ulises Martinez Rajesh Kappera Damien Voiry Alejandro Martinez-Garcia Jacek Jasinski Dan Kelly Manish Chhowalla Aditya D. Mohite Mahendra K. Sunkara Gautam Gupta

Significant interest has grown in the development of earth-abundant and efficient catalytic materials for hydrogen generation. Layered transition metal dichalcogenides present opportunities for efficient electrocatalytic systems. Here, we report the modification of 1D MoOx/ MoS2 core−shell nanostructures by lithium intercalation and the corresponding changes in morphology, structure, and mechan...

2014
Raşit Kılıç Hafize Sezer Sebile Ü. Çomçalı Serdar Bayraktar Gökay Göktolga Yasin Çakmak Abdi B. Çetin Tongabay Cumurcu

Aim. The aim of this study was to investigate the frequency of exfoliation syndrome in the Central Anatolia region of Turkey and to evaluate its relationship with cardiovascular and ocular diseases. Methods. Patients over the age of 45 years who presented to the clinic were included in the study. All cases underwent a comprehensive ophthalmology examination. Exfoliation syndrome was diagnosed w...

2017
Peng Gao Peter Metz Trevyn Hey Yuxuan Gong Dawei Liu Doreen D. Edwards Jane Y. Howe Rong Huang Scott T. Misture

3D porous nanostructures built from 2D δ-MnO2 nanosheets are an environmentally friendly and industrially scalable class of supercapacitor electrode material. While both the electrochemistry and defects of this material have been studied, the role of defects in improving the energy storage density of these materials has not been addressed. In this work, δ-MnO2 nanosheet assemblies with 150 m2 g...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Haotian Wang Zhiyi Lu Shicheng Xu Desheng Kong Judy J Cha Guangyuan Zheng Po-Chun Hsu Kai Yan David Bradshaw Fritz B Prinz Yi Cui

The ability to intercalate guest species into the van der Waals gap of 2D layered materials affords the opportunity to engineer the electronic structures for a variety of applications. Here we demonstrate the continuous tuning of layer vertically aligned MoS2 nanofilms through electrochemical intercalation of Li(+) ions. By scanning the Li intercalation potential from high to low, we have gaine...

Journal: :Displays 2013
Chuen-Ming Gee Chien-Chih Tseng Feng-Yu Wu Hsin-Ping Chang Lain-Jong Li Ya-Ping Hsieh Cheng-Te Lin Jyh-Chen Chen

Graphene is a highly promising candidate to replace oxide-based conducting materials for fabrication of transparent electrodes used in flexible displays and electronic devices. However, so far an appropriate method is still not found to provide high-quality, low-cost graphene in a large quantity. To overcome this issue, we demonstrate that massive graphene sheets can be synthesized by electroch...

Journal: :Nanoscale 2014
Kodepelly Sanjeeva Rao Jaganathan Senthilnathan Jyh-Ming Ting Masahiro Yoshimura

This study reports the "continuous production" of high-quality, few-layer nitrogen-functionalized graphene nanosheets in aqueous solutions directly from graphite via a two-step method. The initial step utilizes our recently developed peroxide-mediated soft and green electrochemical exfoliation approach for the production of few-layer graphene nanosheets. The subsequent step, developed here, pro...

Journal: :Nanoscale 2014
Takeshi Fujita Yoshikazu Ito Yongwen Tan Hisato Yamaguchi Daisuke Hojo Akihiko Hirata Damien Voiry Manish Chhowalla Mingwei Chen

The production of two-dimensional rhenium disulfide (ReS2) nanosheets by exfoliation using lithium intercalation is demonstrated. The vibrational and photoluminescence properties of the exfoliated nanosheets are investigated, and the local atomic structure is studied by scanning and transmission electron microscopy. The catalytic activity of the nanosheets in a hydrogen evolution reaction (HER)...

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