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Hierarchical TiO2-x imbedded with graphene quantum dots for high-performance lithium storage

2017-12-13T14:29:29+00:00 December 13th, 2017|Categories: Publications|Tags: |

Chem. Commun., 2017, Accepted ManuscriptDOI: 10.1039/C7CC09406J, CommunicationWeifeng Zhang, Tan Xu, Zhenwei Liu, Nae-Lih Wu, Mingdeng WeiHierarchical TiO2-x imbedded with graphene quantum dots was synthesized through a facile synthetic route and investigated as an anode material for lithium-ion batteries. It delivers a high specific capacity and…The content of this RSS Feed (c) The Royal Society of Chemistry

Published in: "Chemical Communications".

[email protected] core/shell arrays on Ni foam modified with Ultrathin CdS layer as a superior electrocatalyst for hydrogen evolution reaction

2017-12-13T14:29:28+00:00 December 13th, 2017|Categories: Publications|

Chem. Commun., 2017, Accepted ManuscriptDOI: 10.1039/C7CC08446C, CommunicationJing Ji, Wenqing Lu, Ye Song, Meiling Dou, Hui Long, Feng WangUltrathin CdS layer modifying MoO3/Ni3S2 hierarchical nanoarray on Ni foam exhibits ultrahigh elctrocatalytic activity towards hydrogen evolution reaction with a small overpotential of 30mV at -10mAcm-2 due to the synergistic…The content of this RSS Feed (c) The Royal Society of Chemistry

Published in: "Chemical Communications".

A versatile platform for the high-efficient preparation of graphene quantum dots: photoluminescence emission and hydrophilicity-hydrophobicity regulation and organelle imaging

2017-12-13T14:25:37+00:00 December 13th, 2017|Categories: Publications|Tags: |

Nanoscale, 2017, Accepted ManuscriptDOI: 10.1039/C7NR08093J, PaperXiaolong Wu, Liling Ma, Shan Sun, Kai Jiang, Ling Zhang, Yuhui Wang, Haibo Zeng, Hengwei LinIn this work, a versatile platform for the high-efficient preparation of graphene quantum dots (GQDs) with diverse properties was developed. First of all,

Published in: "RSC Nanoscale".

Exploring the Charge Localization and Band Gap Opening of Borophene: A First-Principles Study

2017-12-13T14:25:36+00:00 December 13th, 2017|Categories: Publications|Tags: |

Nanoscale, 2017, Accepted ManuscriptDOI: 10.1039/C7NR06537J, PaperAndrey Kistanov, Yongqing Cai, Kun Zhou, Narasimalu Srikanth, Sergey Dmitriev, Yong-Wei ZhangRecently synthesized two-dimensional (2D) boron, borophene, exhibits a novel metallic behavior rooted in the s-p orbital hybridization, distinctively different from other 2D materials such as sulfides/selenides and

Published in: "RSC Nanoscale".

Ferroelectric Relaxor Polymer Enhanced p-Type WSe2 Transistor

2017-12-13T14:25:35+00:00 December 13th, 2017|Categories: Publications|Tags: |

Nanoscale, 2017, Accepted ManuscriptDOI: 10.1039/C7NR08034D, PaperChong Yin, Xudong Wang, Yan Chen, Dan Li, Tie Lin, Shuo Sun, Hong Shen, piyi Du, jinglan sun, Xiangjian Meng, Junhao Chu, Hon Fai Wong, Chi Wah Leung, Zongrong Wang, Jianlu WangWSe2 has attracted extensive attention for p-FETs

Published in: "RSC Nanoscale".

Unraveling cooperative synergy of graphene quantum dots and metal nanocrystals at zero-dimension enabled by layer-by-layer assembly

2017-12-13T13:19:04+00:00 December 13th, 2017|Categories: Publications|Tags: |

J. Mater. Chem. A, 2017, Accepted ManuscriptDOI: 10.1039/C7TA09119B, PaperZhiping Zeng, Fangxing Xiao, Hung Phan, Shufen Chen, Zhongzheng Yu, Rong Wang, Thuc-Quyen Thai Nguyen, Timothy Thatt Yang TanRecent years have witnessed a cornucopia toward the synthetic fabrication of carbon-metal nanocomposites; nonetheless, cooperative synergy of

Published in: "Journal of Materials Chemistry A".

Ultrathin graphene oxide-based hollow fiber membranes with brush-like CO<sub>2</sub>-philic agent for highly efficient CO<sub>2</sub> capture

2017-12-13T12:32:11+00:00 December 13th, 2017|Categories: Publications|Tags: , |

Ultrathin graphene oxide-based hollow fiber membranes with brush-like CO2-philic agent for highly efficient CO2 captureUltrathin graphene oxide-based hollow fiber membranes with brush-like CO<sub>2</sub>-philic agent for highly efficient CO<sub>2</sub> capture, Published online: 13 December 2017; doi:10.1038/s41467-017-02318-1Membrane separation technologies show promise for CO2 capture, but typically suffer from a trade-off between permeance and selectivity. Here, the authors produce hollow fiber membranes coated with graphene oxide and a CO2-philic agent that can efficiently separate CO2 from flue gas under wet conditions.

Published in: "Nature Communications".

Reduction and shaping of graphene-oxide by laser-printing for controlled bone tissue regeneration and bacterial killing

2017-12-13T12:31:22+00:00 December 13th, 2017|Categories: Publications|Tags: , |

Graphene and graphene oxide (GO) are capable of inducing stem cells differentiation into bone tissue with variable efficacy depending on reductive state of the material. Thus, modulation of osteogenic process and of bone mineral density distribution is theoretically possible by controlling the GO oxidative state. In this study, we laser-printed GO surfaces in order to obtain both a local photo-thermal GO reduction and the formation of nano-wrinkles along precise geometric pattern. Initially, after cells adhered on the surface, stem cells migrated and accumulated on the reduced and wrinkled surface. When the local density of the stem cells on the reduced stripes was high, cells started to proliferate and occupy the oxidized/flat area. The designed surfaces morphology guided stem cell orientation and the reduction accelerated differentiation. Furthermore the reduced sharp nano-wrinkles were able to enhance the GO antibacterial activity against methicillin-resistant Staphylococc…

Published in: "2DMaterials".

Display process compatible accurate graphene patterning for OLED applications

2017-12-13T12:31:22+00:00 December 13th, 2017|Categories: Publications|Tags: |

Graphene film can be used as transparent electrodes in display and optoelectronic applications. However, achieving residue free graphene film pixel arrays with geometrical precision on large area has been a difficult challenge. By utilizing the liquid bridging concept, we realized photolithographic patterning of graphene film with dimensional correctness and absence of surface contaminant. On a glass substrate of 100  ×  100 mm 2 size, we demonstrate our patterning method to fabricate an addressable two-color OLED module of which graphene film pixel size is 170  ×  300 µ m 2 . Our results strongly suggest graphene film as a serviceable component in commercial display products. The flexible and foldable display applications are expected to be main beneficiaries of our method.

Published in: "2DMaterials".