Biomass-derived nitrogen/oxygen co-doped hierarchical porous carbon with a large specific surface area for ultrafast and long-life sodium-ion batteries

2018 ◽  
Vol 462 ◽  
pp. 713-719 ◽  
Author(s):  
Donghai Luo ◽  
Pei Han ◽  
Ludi Shi ◽  
Jintao Huang ◽  
Jiali Yu ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Porous Carbon ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Large Specific Surface Area ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
Long Life ◽  
Co Doped

Hierarchical N/S co-doped carbon anodes fabricated through a facile ionothermal polymerization for high-performance sodium ion batteries

2019 ◽  
Vol 7 (11) ◽  
pp. 6363-6373 ◽  
Author(s):  
Wenlong Shao ◽  
Fangyuan Hu ◽  
Ce Song ◽  
Jinyan Wang ◽  
Cheng Liu ◽  
...  
Keyword(s):  
Reaction Temperature ◽  
Porous Carbon ◽  
High Performance ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
Carbon Anodes ◽  
Sodium Storage ◽  
Co Doped

N, S-co-doped hierarchical porous carbon with stable sodium storage were prepared by designing the precursors and changing the reaction temperature.

S-doped porous carbon confined SnS nanospheres with enhanced electrochemical performance for sodium-ion batteries

2018 ◽  
Vol 6 (37) ◽  
pp. 18286-18292 ◽  
Author(s):  
Yaping Wang ◽  
Yifang Zhang ◽  
Junrong Shi ◽  
Anqiang Pan ◽  
Feng Jiang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Porous Carbon ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Large Specific Surface Area ◽  
Hollow Nanospheres ◽  
Enhanced Electrochemical Performance

S-doped porous carbon confined SnS hollow nanospheres have a unique structure and large specific surface area and exhibit improved electrochemical performance.

scholarly journals Silkworm cocoon derived N, O-codoped hierarchical porous carbon with ultrahigh specific surface area for efficient capture of methylene blue with exceptionally high uptake: kinetics, isotherm, and thermodynamics

RSC Advances ◽  
2019 ◽  
Vol 9 (58) ◽  
pp. 33872-33882
Author(s):  
Genxing Zhu ◽  
Qi Liu ◽  
Fengyi Cao ◽  
Qi Qin ◽  
Mingli Jiao
Keyword(s):  
Methylene Blue ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Porous Carbon ◽  
Uptake Kinetics ◽  
High Uptake ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
Silkworm Cocoon

Silkworm cocoon derived N, O-HPC (SBET = 2270.19 m2 g−1) was synthesized, and demonstrated exceptionally high uptake of MB (2104.29 mg g−1).

scholarly journals Three-Dimensional Hierarchical Porous Carbon Derived from Natural Resources for Highly Efficient Treatment of Polluted Water

2021 ◽  
Author(s):  
Jiaxin Li ◽  
Rudolf Holze ◽  
Simbarashe Moyo ◽  
Song Wang ◽  
Sanxi Li ◽  
...  
Keyword(s):  
Specific Surface ◽  
Pore Size Distribution ◽  
Pore Size ◽  
Size Distribution ◽  
Surface Area ◽  
Specific Surface Area ◽  
Porous Carbon ◽  
Polluted Water ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous

Abstract In this work, a series of three-dimensional (3D) porous carbon nanomaterial with large specific surface area and hierarchical pores were selectively prepared from biomass with varied properties obtained by tuning the carbonization temperature and activation agent. The optimized carbon sample (PC-500-6) exhibits a typical hierarchical porous structure with a high specific surface area (3203 m2/g) and pore size distribution in the range 0.8 to 3.0 nm, which shows excellent adsorption performance for methylene blue (MB) from an aqueous solution. The maximum adsorption capacity even reaches 917.43 mg/g, which is among one of the best results up to now. Through analysis of the adsorption data, it is found that the corresponding adsorption kinetic fits the pseudo-second-order model very well. The present results demonstrate that biomass-derived hierarchical porous carbon has a real potential application for wastewater treatment.Background:Dealing with the ever-increasing water pollution has become an urgent global problem, especially the organic containing polluted water. The physical adsorption has become one of the most popular ways for removal of organic dyes from wastewater due to its low cost as well as high efficiency. However, the adsorption performance is still limited by the low specific surface area (SSA) and unsuitable pore size. Hence, it is still a challenge to synthesize active carbon (AC) with high SSA, suitable pore size distribution as well as low cost for polluted water treatment. Here, we report an efficient method to prepare AC with large SSA from jujube for removal of MB in aqueous solution. The present results demonstrate that biomass-derived hierarchical porous carbon has a real potential application for wastewater treatment.Results:The as-prepared hierarchical porous structure carbon material (PC-500-6) shows a high specific surface area (3203 m2/g) and pore size distribution in the range 0.8 to 3.0 nm, while exhibits an enhanced adsorption performance for methylene blue (MB) from an aqueous solution. The maximum adsorption capacity even reaches 917.43 mg/g, which was calculated from Langmuir model. Through analysis of the adsorption data, it is found that the corresponding adsorption kinetic fits the pseudo-second-order model very well.Conclusions:It can be concluded that the adsorption of MB has a strong correlation with SSA, pore size distribution as well as the pore volume. The present study paved a practical way for wastewater treatment by using biomass-derived hierarchical porous carbon.

Synthesis of Se/chitosan-derived hierarchical porous carbon composite as Li–Se battery cathode

2017 ◽  
Vol 10 (02) ◽  
pp. 1650074 ◽  
Author(s):  
Cheng Chen ◽  
Chenhao Zhao ◽  
Zhibiao Hu ◽  
Kaiyu Liu
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Discharge Capacity ◽  
Porous Carbon ◽  
Carbon Composite ◽  
High Rate ◽  
Electrochemical Performances ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous

The hierarchical porous carbon with overall macropores and surface micropores has been prepared from carbonization of chitosan/[Formula: see text][Formula: see text] gel-like composite. The specific surface area and pore volume of this carbon can come to 2358.9[Formula: see text][Formula: see text] g[Formula: see text] and 1.14[Formula: see text]cm3 g[Formula: see text], respectively, and the active component Se with amorphous structure is uniformly encapsulated into the microporous structure to form Se/carbon composite. As Li–Se battery cathode, the composite delivers a second discharge capacity of 537.6[Formula: see text]mAh g[Formula: see text] at 0.2[Formula: see text]C, and a discharge capacity of 517.9[Formula: see text]mA h g[Formula: see text] can be retained after 100 cycles. Even at a high rate of 5[Formula: see text]C, the composite still reveals a stable discharge capacity of 325.2[Formula: see text]mAh g[Formula: see text]. The excellent electrochemical performances of Se/carbon composite may attribute to high specific surface area and hierarchical porous feature.

scholarly journals SnSe2 nanocrystals coupled with hierarchical porous carbon microspheres for long-life sodium ion battery anode

2019 ◽  
Vol 63 (4) ◽  
pp. 483-491 ◽  
Author(s):  
Hui Chen ◽  
Zijie Mu ◽  
Yiju Li ◽  
Zhonghong Xia ◽  
Yong Yang ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Sodium Ion ◽  
Sodium Ion Battery ◽  
Carbon Microspheres ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
Long Life ◽  
Battery Anode

Fabrication of Biomass-Derived N, S Co-doped Carbon with Hierarchically Porous Architecture for High Performance Supercapacitor

NANO ◽  
2020 ◽  
Vol 15 (07) ◽  
pp. 2050096
Author(s):  
Minhua Jiang ◽  
Xiaofang Yu ◽  
Ruirui Gao ◽  
Tao Yang ◽  
Zhaoxiu Xu ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Electrode Materials ◽  
Large Specific Surface Area ◽  
Hierarchically Porous ◽  
Porous Architecture ◽  
Hierarchical Porous ◽  
Hierarchical Porous Carbons ◽  
Co Doped

Multi-element doped porous carbon materials are considered as one of the most promising electrode materials for supercapacitors due to their large specific surface area, abundant mesoporous structure, heteroatom doping and good conductivity. Herein, we propose a very simple and effective strategy to prepare nitrogen, sulfur co-doped hierarchical porous carbons (N-S-HPC) by one-step pyrolysis strategy. The effect of sole dopants as a precursor was a major factor in the transformation process. The optimized N-S-HPC-2 possesses a typical hierarchically porous framework (micropores, mesopores and macropores) with a large specific surface area (1284.87[Formula: see text]m2 g[Formula: see text] and N (4.63 atomic %), S (0.53 atomic %) doping. As a result, the N-S-HPC-2 exhibits excellent charge storage capacity with a high gravimetric capacitance of 360[Formula: see text]F g[Formula: see text] (1 [Formula: see text]A g[Formula: see text] in three-electrode systems and 178[Formula: see text]F g[Formula: see text] in two-electrode system and long-term cycling life with 87% retention after 10,000 cycles in KOH electrolyte.

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