Eggplant-derived microporous carbon sheets: towards mass production of efficient bifunctional oxygen electrocatalysts at low cost for rechargeable Zn–air batteries

2015 ◽  
Vol 51 (42) ◽  
pp. 8841-8844 ◽  
Author(s):  
Bing Li ◽  
Dongsheng Geng ◽  
Xinjing Shannon Lee ◽  
Xiaoming Ge ◽  
Jianwei Chai ◽  
...  
Keyword(s):  
Mass Production ◽  
High Performance ◽  
Low Cost ◽  
Microporous Carbon ◽  
Koh Activation ◽  
Bifunctional Catalysts ◽  
Zinc Air Batteries

Microporous carbon sheets derived from eggplant via carbonization and KOH activation serve as efficient bifunctional catalysts for high performance zinc–air batteries.

scholarly journals Preparation of Microporous Carbon from Sargassum horneri by Hydrothermal Carbonization and KOH Activation for CO2 Capture

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Ganning Zeng ◽  
Sa Lou ◽  
Huijuan Ying ◽  
Xi Wu ◽  
Xin Dou ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Carbon Material ◽  
High Performance ◽  
Hydrothermal Carbonization ◽  
High Specific Surface Area ◽  
Microporous Carbon ◽  
Sargassum Horneri ◽  
Koh Activation ◽  
Order Kinetic ◽  
Order Kinetic Model

High-performance microporous activated carbon (AHC) for CO2 capture was prepared from an emerging marine pollutant, Sargassum horneri, via hydrothermal carbonization (HTC) and KOH activation. The as-synthesized carbon material was characterized by N2 sorption-desorption measurement, TGA, SEM, XRD, FTIR, and elemental analysis. Impressively, the activated carbon exhibited high specific surface area (1221 m2/g), narrow distributed micropores (∼0.50 nm), and a relatively high nitrogen content (3.56 wt.%), which endowed this carbon material high CO2 uptake of 101.7 mg/g at 30°C and 1 bar. Moreover, the carbon material showed highly stable CO2 adsorption capacity and easy regeneration over four adsorption-desorption cycles. Two kinetic models were employed in this work and found that the pseudo-first-order kinetic model (R2 = 0.99) provided the best description. In addition, the high CO2 uptake is mainly attributed to the presence of abundant narrow microporous. The macroporous structure of hydrochar (HC) played an important role in the production of microporous carbon with high adsorption properties. This work provides an efficient strategy for preparing microporous activated carbon from Sargassum horneri, and AHC is a promising candidate acting as an efficient CO2 adsorbent for further industrial application.

Tuning the wettability of carbon nanotube arrays for efficient bifunctional catalysts and Zn–air batteries

2017 ◽  
Vol 5 (15) ◽  
pp. 7103-7110 ◽  
Author(s):  
Weiliang Tian ◽  
Haoyuan Li ◽  
Bangchang Qin ◽  
Yuqi Xu ◽  
Yongchao Hao ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Transition Metal Oxides ◽  
High Performance ◽  
Nitrogen Doping ◽  
Nanotube Arrays ◽  
Bifunctional Catalysts ◽  
Nitrogen Doped ◽  
Carbon Nanotube Arrays ◽  
Pt Electrocatalysts ◽  
Zinc Air Batteries

The wettability of 3D carbon nanotube arrays (CNTAs) was tuned by controlling the nitrogen doping degree, and superhydrophilic nitrogen-doped CNTAs were obtained for anchoring transition metal oxides as bifunctional non-Pt electrocatalysts for high-performance zinc–air batteries.

Facile synthesis of spinel CuCo2O4 nanocrystals as high-performance cathode catalysts for rechargeable Li–air batteries

2014 ◽  
Vol 50 (93) ◽  
pp. 14635-14638 ◽  
Author(s):  
Ying Liu ◽  
Lu-Jie Cao ◽  
Chen-Wei Cao ◽  
Man Wang ◽  
Kwan-Lan Leung ◽  
...  
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Combustion Method ◽  
Bifunctional Catalysts ◽  
Facile Synthesis ◽  
Cathode Catalysts

CuCo2O4 nanoparticles have been synthesized by a simple and low-cost urea combustion method and characterized as bifunctional catalysts for non-aqueous Li–air batteries.

Co3O4 nanoparticles grown on N-doped Vulcan carbon as a scalable bifunctional electrocatalyst for rechargeable zinc–air batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (92) ◽  
pp. 75773-75780 ◽  
Author(s):  
Tao An ◽  
Xiaoming Ge ◽  
T. S. Andy Hor ◽  
F. W. Thomas Goh ◽  
Dongsheng Geng ◽  
...  
Keyword(s):  
High Performance ◽  
Bifunctional Catalysts ◽  
Co3o4 Nanoparticles ◽  
Bifunctional Electrocatalyst ◽  
Vulcan Carbon ◽  
Zinc Air Batteries

Balancing the loading of in situ grown Co3O4 nanoparticles with the N-doped Vulcan carbon underneath is essential to produce scalable high-performance bifunctional catalysts of Co3O4/NVC for rechargeable Zn–air batteries.

scholarly journals High-Performance Zinc–Air Batteries with Scalable Metal–Organic Frameworks and Platinum Carbon Black Bifunctional Catalysts

2020 ◽  
Vol 12 (38) ◽  
pp. 42696-42703 ◽  
Author(s):  
Juntao Li ◽  
Zhu Meng ◽  
Dan J. L. Brett ◽  
Paul R. Shearing ◽  
Neal T. Skipper ◽  
...  
Keyword(s):  
Carbon Black ◽  
High Performance ◽  
Metal Organic Frameworks ◽  
Bifunctional Catalysts ◽  
Metal Organic ◽  
Zinc Air Batteries

Formamide-derived “glue” for hundred-gram scale synthesis of atomically dispersed iron-nitrogen-carbon electrocatalysts

Nanoscale ◽  
2021 ◽  
Author(s):  
Zong-Ge Li ◽  
Yan Ma ◽  
Yiyan Wang ◽  
Nianxi Liu ◽  
Ying Zhang ◽  
...  
Keyword(s):  
Heterogeneous Catalysis ◽  
Mass Production ◽  
High Performance ◽  
Low Cost ◽  
Single Atom ◽  
Distinct Structure ◽  
Metal Atoms ◽  
New Frontier ◽  
Maximum Utilization

he distinct structure and maximum utilization of metal atoms on supported single-atom catalysts (SAC) empowers a new frontier of heterogeneous catalysis, yet the low-cost mass production of high-performance SAC is...

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