Accurately manipulating hierarchical flower-like Fe2P@CoP@nitrogen-doped carbon spheres as an efficient carrier material of Pt-based catalyst

Nanoscale ◽  
2021 ◽  
Author(s):  
Fei Xie ◽  
Mengyu Gan ◽  
Li Ma

Fabrication of hierarchical porous catalysts with large specific surface area and tunable architecture provides an effective strategy to promote the catalytic performance of Pt-based catalysts. Herein, we design and construct...

RSC Advances ◽  
2015 ◽  
Vol 5 (62) ◽  
pp. 50063-50069 ◽  
Author(s):  
Li-Ping Lv ◽  
Zhong-Shuai Wu ◽  
Long Chen ◽  
Hao Lu ◽  
Yi-Ran Zheng ◽  
...  

We describe the synthesis of hierarchical porous nitrogen-doped carbon nanoparticles with high specific surface area and specific capacitance for supercapacitors.


RSC Advances ◽  
2017 ◽  
Vol 7 (71) ◽  
pp. 44735-44742 ◽  
Author(s):  
Da Sol Jeong ◽  
Je Moon Yun ◽  
Kwang-Ho Kim

The highly porous nitrogen-doped carbon material pyrolyzed from one of PVP/NaOH mixtures with different NaOH contents exhibited a large specific surface area of up to 2400 m2 g−1 and an excellent supercapacitive performance of maximum 478 F g−1.


2020 ◽  
Vol 194 ◽  
pp. 01030
Author(s):  
Jian Wang ◽  
Shiguang Fan ◽  
Xuan Xu ◽  
Huiru Yun ◽  
He Liu ◽  
...  

Pt nanoparticles supported on nitrogen doped carbon (Pt/CN) catalysts with different surface areas were obtained and characterized by transmission electron microscope (TEM) and brunner-emmet-teller (BET). The characterized results showed that Pt nanoparticles dispersed uniformly on the support surface, and the surface area of the Pt/CN catalyst increased with the increase of annealing temperature. Subsequently, the catalytic performance of Pt/CN catalysts for methylcyclohexane dehydrogenation was studied. The activity of Pt/CN catalysts in methylcyclohexane dehydrogenation increased with the increase of the surface area, Pt/CN-1000 catalyst has the largest surface area and the highest catalytic activity, with the methylcyclohexane conversion of 99% and the TOF value of 424.78 h-1 at 180 ℃ for 150 minutes.


2017 ◽  
Vol 5 (33) ◽  
pp. 17544-17548 ◽  
Author(s):  
Beibei Xie ◽  
Yong Zhang ◽  
Renjie Zhang

Monodisperse Pt nanocrystals in NGA with a large specific surface area and high N content yield high ORR performance.


ChemCatChem ◽  
2010 ◽  
Vol 2 (5) ◽  
pp. 514-518 ◽  
Author(s):  
Haifeng Xiong ◽  
Mahluli Moyo ◽  
Matthew K. Rayner ◽  
Linda L. Jewell ◽  
David G. Billing ◽  
...  

NANO ◽  
2020 ◽  
Vol 15 (07) ◽  
pp. 2050096
Author(s):  
Minhua Jiang ◽  
Xiaofang Yu ◽  
Ruirui Gao ◽  
Tao Yang ◽  
Zhaoxiu Xu ◽  
...  

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.


2021 ◽  
Author(s):  
Chengfeng Yi ◽  
Lushuang Zhang ◽  
Ganghua Xiang ◽  
Xiaoyan Chen ◽  
Na Cheng ◽  
...  

Nitrogen–doped carbon materials with hierarchical porous structures have attracted mountainous attentions in the field of catalysis owing to their special structures and properties in the past decades. In this study,...


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