Facile preparation of a three-dimensional Fe3O4/macroporous graphene composite for high-performance Li storage

2015 ◽  
Vol 3 (22) ◽  
pp. 12031-12037 ◽  
Author(s):  
Xiaoyu Lu ◽  
Ronghua Wang ◽  
Yang Bai ◽  
Jingjing Chen ◽  
Jing Sun
Keyword(s):  
Self Assembly ◽  
High Performance ◽  
Three Dimensional ◽  
Graphene Composite ◽  
Storage Performance ◽  
Facile Preparation ◽  
Li Storage

Facile preparation of a 3D Fe3O4/macroporous graphene composite by self-assembly is proposed, and its superior Li storage performance against 2D Fe3O4/graphene is revealed and deeply discussed.

scholarly journals Direct Patterning and Spontaneous Self-Assembly of Graphene Oxide via Electrohydrodynamic Jet Printing for Energy Storage and Sensing

Micromachines ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 13 ◽  
Author(s):  
Bin Zhang ◽  
Jaehyun Lee ◽  
Mincheol Kim ◽  
Naeeung Lee ◽  
Hyungdong Lee ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Energy Storage ◽  
Self Assembly ◽  
High Performance ◽  
Three Dimensional ◽  
Chemical Properties ◽  
Layer By Layer ◽  
Energy Storage Devices ◽  
Laminar Structure ◽  
Jet Printing

The macroscopic assembly of two-dimensional materials into a laminar structure has received considerable attention because it improves both the mechanical and chemical properties of the original materials. However, conventional manufacturing methods have certain limitations in that they require a high temperature process, use toxic solvents, and are considerably time consuming. Here, we present a new system for the self-assembly of layer-by-layer (LBL) graphene oxide (GO) via an electrohydrodynamic (EHD) jet printing technique. During printing, the orientation of GO flakes can be controlled by the velocity distribution of liquid jet and electric field-induced alignment spontaneously. Closely-packed GO patterns with an ordered laminar structure can be rapidly realized using an interfacial assembly process on the substrates. The surface roughness and electrical conductivity of the LBL structure were significantly improved compared with conventional dispensing methods. We further applied this technique to fabricate a reduced graphene oxide (r-GO)-based supercapacitor and a three-dimensional (3D) metallic grid hybrid ammonia sensor. We present the EHD-assisted assembly of laminar r-GO structures as a new platform for preparing high-performance energy storage devices and sensors.

Self-assembled three-dimensional hierarchical graphene hybrid hydrogels with ultrathin β-MnO2 nanobelts for high performance supercapacitors

2015 ◽  
Vol 3 (4) ◽  
pp. 1540-1548 ◽  
Author(s):  
Sheng Zhu ◽  
Hui Zhang ◽  
Ping Chen ◽  
Lin-Hui Nie ◽  
Chuan-Hao Li ◽  
...  
Keyword(s):  
Self Assembly ◽  
High Performance ◽  
Three Dimensional ◽  
The Self ◽  
Mass Loading ◽  
Hybrid Hydrogel ◽  
Precise Control ◽  
Ultrafine Structure ◽  
Hybrid Hydrogels ◽  
Self Assembled

A facile protocol for the self-assembly of the rGO/β-MnO2 hybrid hydrogel with ultrafine structure and precise control of mass-loading for high performance supercapacitors is reported.

scholarly journals Bioinspired nano-ordered liquid membrane for precise molecular separation

2020 ◽  
Author(s):  
Haozhen Dou ◽  
Mi Xu ◽  
Baoyu Wang ◽  
Zhen Zhang ◽  
Guobin Wen ◽  
...  
Keyword(s):  
Self Assembly ◽  
High Performance ◽  
Liquid Membrane ◽  
Three Dimensional ◽  
Cellular Membrane ◽  
Liquid Structure ◽  
Long Term Stability ◽  
Separation Membranes ◽  
Molecular Separation

Abstract Cellular membranes provide ideal archetypes for molecule or ion separations with sub-angstrom scale precision, which are featured with both extremely high permeability and selectivity due to the well-defined membrane protein channels. However, the development of bioinspired membranes with artificial channels for sub-angstrom scale ethylene/ethane (0.416 nm / 0.443 nm) separation remains an uncharted territory and a significant challenge. Herein, a bioinspired nano-ordered liquid membrane is constructed by a facile ion/molecule self-assembly strategy for highly efficient ethylene/ethane separation, which mimics the structure of cellular membrane elegantly and possesses plenty of three-dimensional (3D) nanochannels. The elaborate regulation of non-covalent interactions by optimizing the ion/molecule compositions within membrane confers the nano-ordered liquid structure with interpenetrating and bi-continuous apolar domains and polar domains, which results in the formation of regular carrier wires and enormous 3D interconnected ethylene transport nanochannels. By virtue of these 3D nanochannels, the bioinspired nano-ordered liquid membrane manifests simultaneously super-high selectivity, excellent permeance and long-term stability, which exceeds previously reported ethylene/ethane separation membranes. This methodology in this work for construction of bioinspired membrane with tunable 3D nanochannels through ion/molecule self-assembly will enlighten the design and development of high-performance separation membranes for angstrom/sub-angstrom scale ion or molecule separations.

scholarly journals Ultrafine MoO2 nanoparticles encapsulated in a hierarchically porous carbon nanofiber film as a high-performance binder-free anode in lithium ion batteries

RSC Advances ◽  
2019 ◽  
Vol 9 (64) ◽  
pp. 37556-37561
Author(s):  
Xin Chen ◽  
Guojun Gao ◽  
Zhipeng Wu ◽  
Jun Xiang ◽  
Xiaoqiang Li ◽  
...  
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Carbon Nanofiber ◽  
Lithium Ion ◽  
Hierarchically Porous ◽  
Storage Performance ◽  
Porous Carbon Nanofiber ◽  
Binder Free ◽  
Nanofiber Film ◽  
Li Storage

A novel binder-free LIB anode made of ultrafine MoO2 nanoparticles encapsulated in hierarchically porous carbon nanofibers exhibits high Li-storage performance.

Facile preparation of unique three-dimensional (3D) α-MnO2/MWCNTs macroporous hybrid as the high-performance cathode of rechargeable Li-O2 batteries

Nano Research ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 69-75 ◽  
Author(s):  
Shuiyun Shen ◽  
Aiming Wu ◽  
Guofeng Xia ◽  
Guanghua Wei ◽  
Xiaohui Yan ◽  
...  
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
Facile Preparation

A high-performance asymmetric supercapacitor electrode based on a three-dimensional ZnMoO4/CoO nanohybrid on nickel foam

Nanoscale ◽  
2019 ◽  
Vol 11 (28) ◽  
pp. 13639-13649 ◽  
Author(s):  
Pengxi Li ◽  
Chaohui Ruan ◽  
Jing Xu ◽  
Yibing Xie
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Nickel Foam ◽  
Three Dimensional ◽  
High Energy ◽  
Asymmetric Supercapacitor ◽  
Supercapacitor Electrode ◽  
Storage Performance ◽  
High Energy Storage

A three-dimensional criss-crossed ZnMoO4/CoO nanohybrid was synthesized to deliver high energy storage performance.

scholarly journals Hierarchical MoS2–carbon porous nanorods towards atomic interfacial engineering for high-performance lithium storage

2019 ◽  
Vol 7 (13) ◽  
pp. 7553-7564 ◽  
Author(s):  
Zhenyou Li ◽  
Alexander Ottmann ◽  
Qing Sun ◽  
Anne K. Kast ◽  
Kai Wang ◽  
...  
Keyword(s):  
Hierarchical Structure ◽  
High Performance ◽  
Molecular Layer ◽  
Building Blocks ◽  
Lithium Storage ◽  
Interfacial Engineering ◽  
Storage Performance ◽  
Li Storage

Downsizing the building blocks of hierarchical structure towards molecular layer level helps to improve the Li storage performance significantly.

scholarly journals A new family of cation-disordered Zn(Cu)–Si–P compounds as high-performance anodes for next-generation Li-ion batteries

2019 ◽  
Vol 12 (7) ◽  
pp. 2286-2297 ◽  
Author(s):  
Wenwu Li ◽  
Xinwei Li ◽  
Jun Liao ◽  
Bote Zhao ◽  
Lei Zhang ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Dft Calculations ◽  
Volume Change ◽  
High Performance ◽  
Experimental Measurements ◽  
Li Ion Batteries ◽  
Storage Performance ◽  
New Family ◽  
Li Ion ◽  
Li Storage

Cation-disordered Zn(Cu)–Si–P family materials demonstrate better Li-storage performance than the cation-ordered ZnSiP2 phase due largely to faster electronic and ionic conductivity and better tolerance to volume change during cycling, as confirmed by DFT calculations and experimental measurements.

Facile preparation of flower-like NiCo 2 O 4 /three dimensional graphene foam hybrid for high performance supercapacitor electrodes

Carbon ◽  
2015 ◽  
Vol 89 ◽  
pp. 328-339 ◽  
Author(s):  
Chunfei Zhang ◽  
Tapas Kuila ◽  
Nam Hoon Kim ◽  
Seung Hee Lee ◽  
Joong Hee Lee
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
Graphene Foam ◽  
Facile Preparation

scholarly journals In situ three-dimensional spider web construction and mechanics

2021 ◽  
Vol 118 (33) ◽  
pp. e2101296118
Author(s):  
Isabelle Su ◽  
Neosha Narayanan ◽  
Marcos A. Logrono ◽  
Kai Guo ◽  
Ally Bisshop ◽  
...  
Keyword(s):  
Self Assembly ◽  
High Performance ◽  
Mechanical Performance ◽  
Three Dimensional ◽  
Hierarchical Structures ◽  
Spider Webs ◽  
Spider Web ◽  
Web Geometry ◽  
Under Construction ◽  
The Web

Spiders are nature’s engineers that build lightweight and high-performance web architectures often several times their size and with very few supports; however, little is known about web mechanics and geometries throughout construction, especially for three-dimensional (3D) spider webs. In this work, we investigate the structure and mechanics for a Tidarren sisyphoides spider web at varying stages of construction. This is accomplished by imaging, modeling, and simulations throughout the web-building process to capture changes in the natural web geometry and the mechanical properties. We show that the foundation of the web geometry, strength, and functionality is created during the first 2 d of construction, after which the spider reinforces the existing network with limited expansion of the structure within the frame. A better understanding of the biological and mechanical performance of the 3D spider web under construction could inspire sustainable robust and resilient fiber networks, complex materials, structures, scaffolding, and self-assembly strategies for hierarchical structures and inspire additive manufacturing methods such as 3D printing as well as inspire artistic and architectural and engineering applications.

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