scholarly journals Molecular Engineering toward High‐Crystallinity Yet High‐Surface‐Area Porous Carbon Nanosheets for Enhanced Electrocatalytic Oxygen Reduction

2021 ◽  
pp. 2103477
Author(s):  
Yongqi Chen ◽  
Junlong Huang ◽  
Zirun Chen ◽  
Chenguang Shi ◽  
Haozhen Yang ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Surface Area ◽  
Porous Carbon ◽  
High Surface ◽  
High Surface Area ◽  
Molecular Engineering ◽  
Carbon Nanosheets ◽  
High Crystallinity ◽  
Electrocatalytic Oxygen Reduction

Cellulose generated-microporous carbon nanosheets with nitrogen doping

RSC Advances ◽  
2014 ◽  
Vol 4 (18) ◽  
pp. 9126-9132 ◽  
Author(s):  
Wenzhong Shen ◽  
Tuoping Hu ◽  
Weibin Fan
Keyword(s):  
Surface Area ◽  
Porous Carbon ◽  
Pore Volume ◽  
Nitrogen Doping ◽  
High Surface ◽  
High Surface Area ◽  
Structural Features ◽  
Carbon Nanosheets ◽  
Nitrogen Doped ◽  
Adsorption Performance

Nanosheet porous carbon with high surface area and pore volume, unique compositional and structural features endow the nitrogen-doped porous carbon nanosheets with superior CO2 adsorption performance.

Direct Synthesis of Nitrogen-Doped Carbon Nanosheets with High Surface Area and Excellent Oxygen Reduction Performance

Langmuir ◽  
2014 ◽  
Vol 30 (27) ◽  
pp. 8238-8245 ◽  
Author(s):  
Qiao Liu ◽  
Youxin Duan ◽  
Qiuping Zhao ◽  
Fuping Pan ◽  
Bin Zhang ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Surface Area ◽  
Direct Synthesis ◽  
High Surface ◽  
High Surface Area ◽  
Carbon Nanosheets ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

Activation-free fabrication of high-surface-area porous carbon nanosheets from conjugated copolymers

2018 ◽  
Vol 54 (81) ◽  
pp. 11431-11434 ◽  
Author(s):  
Youchen Tang ◽  
Shaohong Liu ◽  
Bingna Zheng ◽  
Ruliang Liu ◽  
Ruowen Fu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Surface Area ◽  
Porous Carbon ◽  
High Surface ◽  
High Surface Area ◽  
Carbon Nanosheets ◽  
Poly Aniline ◽  
Conjugated Copolymers

Porous carbon nanosheets with a high surface area of 1606 m2 g−1 have been successfully prepared by direct carbonization of graphene oxide sandwiched poly(aniline-co-pyrrole).

scholarly journals Highly Porous Carbon Materials from Biomass by Chemical and Carbonization Method: A Comparison Study

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Wan Nor Roslam Wan Isahak ◽  
Mohamed Wahab Mahamed Hisham ◽  
Mohd Ambar Yarmo
Keyword(s):  
Sulfuric Acid ◽  
Thermal Behavior ◽  
Surface Area ◽  
Porous Carbon ◽  
High Surface ◽  
High Surface Area ◽  
Empty Fruit Bunches ◽  
Heating Treatment ◽  
Concentrated Sulfuric Acid ◽  
Highly Porous

Porous carbon obtained by dehydrating agent, concentrated sulfuric acid (H2SO4), from biomass containing high cellulose (filter paper (FP), bamboo waste, and empty fruit bunches (EFB)) shows very high surface area and better thermal behavior. At room temperature (without heating), treatment of H2SO4removed all the water molecules in the biomass and left the porous carbon without emitting any gaseous byproducts. Brunauer-Emmett-Teller (BET) surface analysis has shown that bamboo-based carbon has good properties with higher surface area (507.8 m2/g), micropore area (393.3 m2/g), and better thermal behavior (compared to FP and EFB) without any activation or treatment process. By acid treatment of biomass, it was shown that higher carbon composition obtained from FP (85.30%), bamboo (77.72%), and EFB (76.55%) is compared to carbon from carbonization process. Under optimal sulfuric acid (20 wt.%) uses, high carbon yield has been achieved for FP (47.85 wt.%), bamboo (62.4 wt.%), and EFB (55.4 wt.%).

High surface area mesoporous LaFexCo1−xO3 oxides: synthesis and electrocatalytic property for oxygen reduction

2013 ◽  
Vol 42 (26) ◽  
pp. 9448 ◽  
Author(s):  
Yongxia Wang ◽  
Xiangzhi Cui ◽  
Yongsheng Li ◽  
Lisong Chen ◽  
Zhu Shu ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Electrocatalytic Property

Preparing high surface area porous carbon from biomass by carbonization in a molten salt medium

RSC Advances ◽  
2015 ◽  
Vol 5 (92) ◽  
pp. 75728-75734 ◽  
Author(s):  
Huishan Shang ◽  
Yanjie Lu ◽  
Feng Zhao ◽  
Cong Chao ◽  
Bing Zhang ◽  
...  
Keyword(s):  
Molten Salt ◽  
Surface Area ◽  
Porous Carbon ◽  
High Surface ◽  
High Surface Area ◽  
Molten Salt Synthesis ◽  
Synthesis Process ◽  
Salt Medium ◽  
Peanut Shells

Peanut shells were transformed into porous carbon with a high surface area through a simple ZnCl2-molten salt synthesis process.

scholarly journals Dopamine Assisted One-Step Pyrolysis of Glucose for the Preparation of Porous Carbon with A High Surface Area

Nanomaterials ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 854 ◽  
Author(s):  
Hanbo Xiao ◽  
Cheng-an Tao ◽  
Yujiao Li ◽  
Xianzhe Chen ◽  
Jian Huang ◽  
...  
Keyword(s):  
Surface Area ◽  
Porous Carbon ◽  
Carbon Materials ◽  
High Current Density ◽  
High Surface ◽  
High Surface Area ◽  
Energy Storage Materials ◽  
One Pot ◽  
Component Structure ◽  
Porous Carbon Materials

Herein, a facile dopamine assisted one-pot synthesis approach is proposed for the preparation of porous carbon with a specific surface area (SSA) up to 2593 m2/g through the direct pyrolysis of a mixture of glucose, NH4Cl, and dopamine hydrochloride (DAH). The glucose is adopted as the carbon source and foaming agent, NH4Cl is used as the blowing agent, and DAH is served as collaborative carbon precursor as well as the nitrogen source for the first time. The effect of dopamine on the component, structure, and SSA of the as-prepared porous carbon materials are systematically studied. The moderate addition of dopamine, which influences the condensation and polymerization of glucose, matches better with ammonium salt decomposition. The SSA of porous carbon increases first and then decreases with the increasing amount of dopamine. In our case, the porous carbon produced with 5 wt% dopamine (PC-5) achieves the maximum SSA of up to 2593 m2/g. Accordingly, it also shows the greatest electrochemical performance. The PC-5 shows a capacitance of 96.7 F/g calculated from the discharge curve at 1 A/g. It also has a good capacitive rate capacity, the specific capacitance can still maintain 80%, even at a high current density of 10 A/g. Moreover, PC-5 exhibits a good cycling stability of 98.1% capacitive retention after 1000 cycles. The proposed method may show promising prospects for preparing porous carbon materials as advanced energy storage materials, storage, and catalyst supports.

scholarly journals Ultra-high surface area and mesoporous N-doped carbon derived from sheep bones with high electrocatalytic performance toward the oxygen reduction reaction

2017 ◽  
Vol 21 (10) ◽  
pp. 2947-2954 ◽  
Author(s):  
Shunxi Li ◽  
Ruoyu Xu ◽  
Hui Wang ◽  
Dan J. L. Brett ◽  
Shan Ji ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Reduction Reaction ◽  
Electrocatalytic Performance

Bulk Production of Non-Precious Metal Catalysts with High Surface Area and Excellent Activity in the Oxygen Reduction Reaction

2017 ◽  
Vol 5 (14) ◽  
pp. 1854-1861 ◽  
Author(s):  
Bei-Hua Hou ◽  
Qiang Wang ◽  
Wen-Chao Lu ◽  
Yao Xiao ◽  
Hai-Xia Zhang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Surface Area ◽  
Precious Metal ◽  
High Surface ◽  
High Surface Area ◽  
Reduction Reaction ◽  
Precious Metal Catalysts ◽  
Excellent Activity ◽  
Bulk Production
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