Low-Cost Sulfonated Phthalocyanines-Derived Hierarchical Porous Co-Cu-N-S-Doped Carbons for Efficient Oxygen Electroreduction

2018 ◽  
Vol 165 (10) ◽  
pp. H658-H666
Author(s):  
Ziqian Zhou ◽  
Aoling Chen ◽  
Aiguo Kong ◽  
Xiaohong Fan ◽  
Xiaoying Zhang ◽  
...  
Keyword(s):  
Low Cost ◽  
Oxygen Electroreduction ◽  
Hierarchical Porous ◽  
Sulfonated Phthalocyanines

Highly reversible aluminium-sulfur batteries through effective sulfur confinement with hierarchical porous carbon

2021 ◽  
Author(s):  
Dian Zhang ◽  
Xu Zhang ◽  
Boya Wang ◽  
Shiman He ◽  
Shiqi Liu ◽  
...  
Keyword(s):  
Energy Density ◽  
Porous Carbon ◽  
Low Cost ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
Application Prospects

Aluminium-sulfur (Al-S) batteries possess high research merits and application prospects owing to their high theoretical energy density, high safety and low cost. However, the deficiency of outstanding cathodes severely limits...

Novel hierarchical porous carbon prepared by a one-step template route for electric double layer capacitors and Li–Se battery devices

2020 ◽  
Vol 8 (8) ◽  
pp. 4376-4385 ◽  
Author(s):  
Youyi Lei ◽  
Xinmiao Liang ◽  
Li Yang ◽  
Ping Jiang ◽  
Zhenyu Lei ◽  
...  
Keyword(s):  
Double Layer ◽  
Porous Carbon ◽  
Electric Double Layer ◽  
Carbon Materials ◽  
Low Cost ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
One Step ◽  
Double Layer Capacitors ◽  
Hierarchical Porous Carbon Materials

Low-cost hierarchical porous carbon materials with a controllable structure for supercapacitors and lithium selenium batteries.

scholarly journals Synthesis of Hierarchical Porous Ni1.5Co1.5S4/g-C3N4 Composite for Supercapacitor with Excellent Cycle Stability

Nanomaterials ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1631
Author(s):  
Fangzhou Jin ◽  
Xingxing He ◽  
Jinlong Jiang ◽  
Weijun Zhu ◽  
Jianfeng Dai ◽  
...  
Keyword(s):  
Current Density ◽  
High Current Density ◽  
Low Cost ◽  
High Specific Capacitance ◽  
High Energy ◽  
High Energy Density ◽  
Cycle Stability ◽  
Hydrothermal Route ◽  
Supercapacitor Application ◽  
Hierarchical Porous

In this work, the hierarchical porous Ni1.5Co1.5S4/g-C3N4 composite was prepared by growing Ni1.5Co1.5S4 nanoparticles on graphitic carbon nitride (g-C3N4) nanosheets via a hydrothermal route. Due to the self-assembly of larger size g-C3N4 nanosheets as a skeleton, the prepared nanocomposite possesses a unique hierarchical porous structure that can provide short ions diffusion and fast electron transport. As a result, the Ni1.5Co1.5S4/g-C3N4 composite exhibits a high specific capacitance of 1827 F g−1 at a current density of 1 A g−1, which is 1.53 times that of pure Ni1.5Co1.5S4 (1191 F g−1). In particular, the Ni1.5Co1.5S4/g-C3N4//activated carbon (AC) asymmetric supercapacitor delivers a high energy density of 49.0 Wh kg−1 at a power density of 799.0 W kg−1. Moreover, the assembled device shows outstanding cycle stability with 95.5% capacitance retention after 8000 cycles at a high current density of 10 A g−1. The attractive performance indicates that the easily synthesized and low-cost Ni1.5Co1.5S4/g-C3N4 composite would be a promising electrode material for supercapacitor application.

scholarly journals Facile fabrication of hierarchical porous carbon based on extract separated from coal with outstanding electrochemical performance

RSC Advances ◽  
2017 ◽  
Vol 7 (54) ◽  
pp. 33843-33850 ◽  
Author(s):  
Peng Chang ◽  
Zhihong Qin
Keyword(s):  
Electrochemical Performance ◽  
Porous Carbon ◽  
Low Cost ◽  
Koh Activation ◽  
Porous Carbons ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
Hierarchical Porous Carbons ◽  
Facile Fabrication

Herein, a novel kind of hierarchical porous carbons were directly synthesized from low-cost extracts of coal by coupling nano MgO template with in situ KOH activation strategy.

Template-free synthesis of hierarchical porous carbon derived from low-cost biomass for high-performance supercapacitors

RSC Advances ◽  
2014 ◽  
Vol 4 (93) ◽  
pp. 51072-51079 ◽  
Author(s):  
Li Wang ◽  
Yaolin Zheng ◽  
Qinying Zhang ◽  
Li Zuo ◽  
Shuiliang Chen ◽  
...  
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Low Cost ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
Template Free

scholarly journals Synthesis and Characterization of Hierarchical Porousα-FeOOH for the Adsorption and Photodegradation of Rhodamine B

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Jianliang Cao ◽  
Gaojie Li ◽  
Yan Wang ◽  
Guang Sun ◽  
Hari Bala ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Rhodamine B ◽  
Uv Light ◽  
Low Cost ◽  
High Surface ◽  
High Surface Area ◽  
X Ray Diffraction ◽  
Transmission Electron ◽  
Hierarchical Porous ◽  
Templated Method

Hierarchical porousα-FeOOH nanoparticles were controlled and prepared via a facile polystyrene (PS) microspheres-templated method. Theα-Fe2O3was obtained by the calcination of the as-preparedα-FeOOH. The resulting nanoparticles were characterized by X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and N2-sorption techniques. The adsorption and photodegradation of Rhodamine B performance were evaluated under UV light at room temperature. The results indicated that the photocatalytic activity of theα-FeOOH nanoparticles is superior toα-Fe2O3-200 andα-Fe2O3-300 due to the hierarchically multiporous structure and high surface area. This convenient and low-cost process provides a rational synthesis alternative for the preparation of multiporous materials and the as-synthesis products have great foreground applications in many aspects.

Iron and nitrogen co-doped hierarchical porous graphitic carbon for a high-efficiency oxygen reduction reaction in a wide range of pH

2016 ◽  
Vol 4 (37) ◽  
pp. 14364-14370 ◽  
Author(s):  
Wenling Gu ◽  
Liuyong Hu ◽  
Jing Li ◽  
Erkang Wang
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Efficiency ◽  
Low Cost ◽  
Reduction Reaction ◽  
Porous Graphitic Carbon ◽  
Graphitic Carbon ◽  
Hierarchical Porous ◽  
Wide Range ◽  
Co Doped

A template-free oxygen reduction reaction (ORR) catalyst Fe and N co-doped hierarchical porous graphitic carbon (Fe,N/PGC) was prepared by pyrolyzing a nontoxic and low-cost iron-coordinated polydopamine polymer precursor at 800 °C. The obtained catalyst manifests outstanding oxygen reduction activity in a wide range of pH.

Facile synthesis of novel hierarchically porous carbon derived from nature biomass for enhanced removal of NaCl

2016 ◽  
Vol 74 (8) ◽  
pp. 1821-1831 ◽  
Author(s):  
Guixiang Quan ◽  
Lei Chu ◽  
Xiangyun Han ◽  
Cheng Ding ◽  
Tianming Chen ◽  
...  
Keyword(s):  
Surface Area ◽  
High Efficiency ◽  
Low Cost ◽  
Great Influence ◽  
Accessible Surface Area ◽  
Biomass Carbon ◽  
Activation Temperature ◽  
Hierarchically Porous ◽  
Hierarchical Porous ◽  
Activation Conditions

In this work, the hierarchically porous biomass carbon (HPBC) was originally prepared for desalination through a simple activation of cheap biomass carbon (BC). Such crucial activated conditions as the KOH/C ratio, the activation time and the activation temperature were deeply investigated. It is demonstrated that the activated conditions had a great influence on the structure properties and electrochemical performance. According to structure and surface analyses, the HPBC with larger surface area and hierarchical porous structure could be well obtained in suitable activation conditions. The electrochemical analyses showed that the HPBC showed increased electrosorption capacitance, lower inner resistance and good stability, which can be attributed to large accessible surface area and smooth ion transportation. In the further desalination test, the HPBC electrode exhibited enhanced desalination efficiency and capacity. Hence, HPBC can be a promising candidate electrode material for desalination with low cost and high efficiency.

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