scholarly journals Porous g-C3N4 covered MOF-derived nanocarbon materials for high-performance supercapacitors

RSC Advances ◽  
2019 ◽  
Vol 9 (67) ◽  
pp. 39076-39081 ◽  
Author(s):  
Chao Lu ◽  
Xi Chen
Keyword(s):  
Surface Area ◽  
High Performance ◽  
Nitrogen Doping ◽  
Large Surface Area ◽  
High Nitrogen ◽  
Nanocarbon Material ◽  
Nanocarbon Materials

Here, we report a porous g-C3N4 covered MOF-derived nanocarbon material with large surface area and high nitrogen doping for supercapacitors.

scholarly journals FeCo Nanoparticle-Loaded Nutshell-Derived Porous Carbon as Sustainable Catalyst in Al-Air Batteries

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
A. Sumboja ◽  
B. Prakoso ◽  
Y. Ma ◽  
F. R. Irwan ◽  
J. J. Hutani ◽  
...  
Keyword(s):  
Surface Area ◽  
High Performance ◽  
Nitrogen Doping ◽  
Low Cost ◽  
High Energy ◽  
Large Surface Area ◽  
High Energy Density ◽  
Active Surface Area ◽  
Peanut Shell ◽  
Feco Alloy

Developing a high-performance ORR (oxygen reduction reaction) catalyst at low cost has been a challenge for the commercialization of high-energy density and low production cost aluminium-air batteries. Herein, we report a catalyst, prepared by pyrolyzing the shell waste of peanut or pistachio, followed by concurrent nitrogen-doping and FeCo alloy nanoparticle loading. Large surface area (1246.4 m2 g-1) of pistachio shell-derived carbon can be obtained by combining physical and chemical treatments of the biomass. Such a large surface area carbon eases nitrogen doping and provides more nucleation sites for FeCo alloy growth, furnishing the resultant catalyst (FeCo/N-C-Pistachio) with higher content of N, Fe, and Co with a larger electrochemically active surface area as compared to its peanut shell counterpart (FeCo/N-C-Peanut). The FeCo/N-C-Pistachio displays a promising onset potential of 0.93 V vs. RHE and a high saturating current density of 4.49 mA cm-2, suggesting its high ORR activity. An aluminium-air battery, with FeCo/N-C-Pistachio catalyst on the cathode and coupled with a commercial aluminium 1100 anode, delivers a power density of 99.7 mW cm-2 and a stable discharge voltage at 1.37 V over 5 h of operation. This high-performance, low-cost, and environmentally sustainable electrocatalyst shows potential for large-scale adoption of aluminium-air batteries.

Accelerating ion diffusion with unique three-dimensionally interconnected nanopores for self-membrane high-performance pseudocapacitors

Nanoscale ◽  
2017 ◽  
Vol 9 (46) ◽  
pp. 18311-18317 ◽  
Author(s):  
Yuan Gao ◽  
Yuanjing Lin ◽  
Zehua Peng ◽  
Qingfeng Zhou ◽  
Zhiyong Fan
Keyword(s):  
Aspect Ratio ◽  
Surface Area ◽  
Structural Stability ◽  
High Aspect Ratio ◽  
High Performance ◽  
Three Dimensional ◽  
Rate Capability ◽  
Large Surface Area ◽  
Nanoporous Structure ◽  
Ion Diffusion

Three-dimensional interconnected nanoporous structure (3-D INPOS) possesses high aspect ratio, large surface area, as well as good structural stability. Profiting from its unique interconnected architecture, the 3-D INPOS pseudocapacitor achieves a largely enhanced capacitance and rate capability.

High-performance hydrogen evolution at a MoSe2–Mo2C seamless heterojunction enabled by efficient charge transfer

2020 ◽  
Vol 8 (14) ◽  
pp. 6692-6698 ◽  
Author(s):  
Jing Li ◽  
Wenting Hong ◽  
Chuanyong Jian ◽  
Qian Cai ◽  
Xu He ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Dft Calculations ◽  
Surface Area ◽  
Hydrogen Evolution ◽  
High Performance ◽  
Large Surface Area ◽  
Efficient Charge ◽  
Enhanced Conductivity

The heterojunction of Mo2C/MoSe2 with enhanced conductivity and large surface area is contributed to an efficient HER process. DFT calculations prove that there are MIGS in the interface between Mo2C and MoSe2, facilitating charge transfer for HER.

Mordant inspired wet-spinning of graphene fibers for high performance flexible supercapacitors

2019 ◽  
Vol 7 (12) ◽  
pp. 6869-6876 ◽  
Author(s):  
Nanfei He ◽  
Weitao Shan ◽  
Julia Wang ◽  
Qin Pan ◽  
Jiangang Qu ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Surface Area ◽  
High Performance ◽  
Large Surface Area ◽  
Wet Spinning ◽  
High Electrical Conductivity ◽  
Flexible Supercapacitors ◽  
Large Capacitance ◽  
Graphene Fibers

Al3+ coagulated wet-spun graphene fibers show a large surface area and high electrical conductivity, resulting in large capacitance.

Ordered multimodal porous carbon with hierarchical nanostructure as high performance electrode material for supercapacitors

RSC Advances ◽  
2014 ◽  
Vol 4 (73) ◽  
pp. 38931-38938 ◽  
Author(s):  
Sudeshna Chaudhari ◽  
Seon Young Kwon ◽  
Jong-Sung Yu
Keyword(s):  
Mass Transport ◽  
Surface Area ◽  
Electrode Material ◽  
Porous Carbon ◽  
High Performance ◽  
Electrical Charge ◽  
Large Surface Area ◽  
Charge Storage ◽  
Hierarchical Nanostructure

Unique hierarchical nanostructure of OMPC facilitates fast mass transport along with large surface area for electrical charge storage.

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