Soluble salt self-assembly-assisted synthesis of three-dimensional hierarchical porous carbon networks for supercapacitors

2015 ◽  
Vol 3 (44) ◽  
pp. 22266-22273 ◽  
Author(s):  
Shan Zhu ◽  
Jiajun Li ◽  
Chunnian He ◽  
Naiqin Zhao ◽  
Enzuo Liu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Three Dimensional ◽  
Water Soluble ◽  
The Self ◽  
Soluble Salts ◽  
Hierarchical Porous Carbon ◽  
One Pot ◽  
Hierarchical Porous ◽  
Hierarchical Porous Carbons ◽  
Carbon Networks

Three-dimensional hierarchical porous carbons are synthesized via a simple one-pot method using the self-assembly of various water-soluble salts as structure-directing templates, which exhibit excellent capacitive performance.

scholarly journals Simple and scalable synthesis of hierarchical porous carbon derived from cornstalk without pith for high capacitance and energy density

2020 ◽  
Vol 8 (3) ◽  
pp. 1469-1479 ◽  
Author(s):  
Jiaming Li ◽  
Qimeng Jiang ◽  
Lansheng Wei ◽  
Linxin Zhong ◽  
Xiaoying Wang
Keyword(s):  
Energy Density ◽  
Porous Carbon ◽  
Porous Carbons ◽  
Hierarchical Porous Carbon ◽  
One Pot ◽  
High Capacitance ◽  
Hierarchical Porous ◽  
Hierarchical Porous Carbons ◽  
Scalable Synthesis

A sustainable one-pot route for the synthesis of hierarchical porous carbons (HPCs) from cornstalk without pith is developed.

Nanoparticles as template for porphyrin nanostructure growth

2019 ◽  
Vol 23 (04n05) ◽  
pp. 526-533 ◽  
Author(s):  
Mariana Hamer ◽  
Rolando M. Caraballo ◽  
Peter J. Eaton ◽  
Craig Medforth
Keyword(s):  
Self Assembly ◽  
Soret Band ◽  
Surface Interactions ◽  
Water Soluble ◽  
The Self ◽  
Stacking Interactions ◽  
Aromatic System ◽  
One Pot ◽  
Assembly Mechanism ◽  
Scattering Measurements

Porphyrins and metalloporphyrins are one of the most widely studied platforms for the construction of supramolecular structures. These compounds have an extended aromatic system that allows [Formula: see text]–[Formula: see text] stacking interactions which, together with hydrogen bonds, electrostatic forces and the formation of inter-metallic complexes arising from peripheral groups, offer a versatile platform to control the self-assembly mechanism. In this work, we present the study of nanostructures formed by self-assembly of the water-soluble porphyrins meso-tetra([Formula: see text]-methyl-4-pyridyl)porphyrin (TMPyP) and meso-tetra(4-sulfonatophenyl)porphyrin (TPPS) in the presence of hard nanotemplates. Different nanoparticles (silica, gold, and polystyrene), concentrations and synthetic procedures were explored. The obtained materials were characterized by SEM and AFM microscopies, UV-vis absorption spectroscopy and dynamic light scattering measurements. A clear modification of the SiO2 NP surface roughness using one-pot synthesis was observed. The results were variable depending on the porphyrin–surface interactions and concentrations used. At lower porphyrin concentrations, a shift of the Soret band was observed, while at higher concentrations, free NS were formed. This reflects a competition between surface and solution directed self-assembly.

Preparation, characterization, and properties of graphene-based composite aerogels via in situ polymerization and three-dimensional self-assembly from graphene oxide solution

RSC Advances ◽  
2016 ◽  
Vol 6 (82) ◽  
pp. 78538-78547 ◽  
Author(s):  
Haiming Cheng ◽  
Huafei Xue ◽  
Guangdong Zhao ◽  
Changqing Hong ◽  
Xinghong Zhang
Keyword(s):  
Graphene Oxide ◽  
Phase Separation ◽  
Self Assembly ◽  
In Situ Polymerization ◽  
Three Dimensional ◽  
One Pot ◽  
Hierarchical Porous ◽  
Composite Aerogels ◽  
Polymerization Induced Phase Separation

In this work, hierarchical porous graphene-based composite aerogels are synthesized by a simple and facile one-pot polymerization-induced phase separation.

scholarly journals Controllable synthesis of three-dimensional nitrogen-doped hierarchical porous carbon and its application in the detection of lead

RSC Advances ◽  
2019 ◽  
Vol 9 (33) ◽  
pp. 18902-18908 ◽  
Author(s):  
Runying Dai ◽  
Xue Ma ◽  
Quan Xu ◽  
Limin Lu
Keyword(s):  
High Temperature ◽  
Porous Carbon ◽  
Three Dimensional ◽  
Temperature Treatment ◽  
High Temperature Treatment ◽  
Hierarchical Porous Carbon ◽  
Controllable Synthesis ◽  
One Pot ◽  
Nitrogen Doped ◽  
Hierarchical Porous

In this study, gelatin-based microcapsules were first proposed as a carbon source for the synthesis of nitrogen-doped hierarchical porous carbon (N-HPC) via a facile one-pot high-temperature treatment.

From a ZIF-8 polyhedron to three-dimensional nitrogen doped hierarchical porous carbon: an efficient electrocatalyst for the oxygen reduction reaction

2018 ◽  
Vol 6 (23) ◽  
pp. 10731-10739 ◽  
Author(s):  
Cuijuan Xuan ◽  
Baoshan Hou ◽  
Weiwei Xia ◽  
Zongkai Peng ◽  
Tao Shen ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Porous Carbon ◽  
Three Dimensional ◽  
Reduction Reaction ◽  
Porous Carbons ◽  
Hierarchical Porous Carbon ◽  
Nitrogen Doped ◽  
Hierarchical Porous ◽  
Hierarchical Porous Carbons

Three-dimensional nitrogen doped hierarchical porous carbons are synthesized by NaCl-assisted pyrolysis exfoliation of a ZIF-8 polyhedron with enhanced ORR electrocatalytic activities.

scholarly journals Electrochemical sensor based on a three dimensional nanostructured MoS2 nanosphere-PANI/reduced graphene oxide composite for simultaneous detection of ascorbic acid, dopamine, and uric acid

RSC Advances ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 2997-3003 ◽  
Author(s):  
Shuaihui Li ◽  
Yashen Ma ◽  
Yongkang Liu ◽  
Gu Xin ◽  
Minghua Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Self Assembly ◽  
Hydrothermal Process ◽  
Simultaneous Detection ◽  
Three Dimensional ◽  
The Self ◽  
One Pot ◽  
Nanostructured Composite ◽  
Reduced Graphene

A three dimensional (3D) nanostructured composite based on the self-assembly of MoS2 nanospheres and polyaniline (PANI) loaded on reduced graphene oxide (denoted by 3D MoS2-PANI/rGO) was prepared via a feasible one-pot hydrothermal process.

Nanoscale Self-Assembly Using Ion and Electron Beam Techniques: A Rapid Review

MRS Advances ◽  
2020 ◽  
Vol 5 (64) ◽  
pp. 3507-3520
Author(s):  
Chunhui Dai ◽  
Kriti Agarwal ◽  
Jeong-Hyun Cho
Keyword(s):  
Electron Beam ◽  
Self Assembly ◽  
Ion Beam ◽  
Three Dimensional ◽  
The Self ◽  
Stress Generation ◽  
Rapid Review ◽  
High Yield ◽  
3D Nanostructures ◽  
Self Assembled

AbstractNanoscale self-assembly, as a technique to transform two-dimensional (2D) planar patterns into three-dimensional (3D) nanoscale architectures, has achieved tremendous success in the past decade. However, an assembly process at nanoscale is easily affected by small unavoidable variations in sample conditions and reaction environment, resulting in a low yield. Recently, in-situ monitored self-assembly based on ion and electron irradiation has stood out as a promising candidate to overcome this limitation. The usage of ion and electron beam allows stress generation and real-time observation simultaneously, which significantly enhances the controllability of self-assembly. This enables the realization of various complex 3D nanostructures with a high yield. The additional dimension of the self-assembled 3D nanostructures opens the possibility to explore novel properties that cannot be demonstrated in 2D planar patterns. Here, we present a rapid review on the recent achievements and challenges in nanoscale self-assembly using electron and ion beam techniques, followed by a discussion of the novel optical properties achieved in the self-assembled 3D nanostructures.

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.

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