PtFe/nitrogen-doped graphene for high-performance electrooxidation of formic acid with composition sensitive electrocatalytic activity

RSC Advances ◽  
2015 ◽  
Vol 5 (74) ◽  
pp. 60237-60245 ◽  
Author(s):  
Yanfang Sun ◽  
Ting Zhou ◽  
Qingyan Pan ◽  
Xiao Zhang ◽  
Jinxue Guo
Keyword(s):  
Formic Acid ◽  
Electrocatalytic Activity ◽  
High Performance ◽  
Synergistic Effects ◽  
Catalytic Performance ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Formic Acid Electrooxidation

A PtFe/N-doped graphene electrocatalyst with a reduced amount of Pt is developed, which shows a good catalytic performance for formic acid electrooxidation due to the synergistic effects between the NG substrate and PtFe nanoalloy.

scholarly journals Ligand-Free Nano-Au Catalysts on Nitrogen-Doped Graphene Filter for Continuous Flow Catalysis

Nanomaterials ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 688 ◽  
Author(s):  
Yanbiao Liu ◽  
Xiang Liu ◽  
Shengnan Yang ◽  
Fang Li ◽  
Chensi Shen ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Continuous Flow ◽  
High Performance ◽  
Catalytic Performance ◽  
Two Dimensional ◽  
Nitrogen Doped ◽  
Catalytic Filter ◽  
Ligand Free ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

In this study, the authors rationally designed a high-performance catalytic filter for continuous flow catalysis. The catalytic filter consisted of ligand-free nanoscale gold (nano-Au) catalysts and nitrogen-doped graphene (N-rGO). The Au catalyst was fabricated in situ onto a pre-formed N-rGO support by the NaBH4 reduction of the Au precursor, and the size of the nano-Au was fine-tuned. A hydrothermal pretreatment of graphene oxide enriched nitrogen-containing species on the surface of two-dimensional graphene supports and enhanced the affinity of Au precursors onto the support via electrocatalytic attraction. The nano-Au catalysts acted as high-performance catalysts, and the N-rGO acted as ideal filter materials to anchor the catalysts. The catalytic activity of the as-designed catalytic filter was evaluated using 4-nitrophenol (4-NP) hydrogenation as a model catalytic reaction. The catalytic filters demonstrated superior catalytic activity and excellent stability, where a complete 4-nitrophenol conversion was readily achieved via a single pass through the catalytic filter. The as-fabricated catalytic filter outperformed the conventional batch reactors due to evidently improved mass transport. Some key operational parameters impacting the catalytic performance were identified and optimized. A similar catalytic performance was also observed for three 4-nitrophenol spiked real water samples (e.g., surface water, tap water, and industrial dyeing wastewater). The excellent catalytic activity of the nano-Au catalysts combined with the two-dimensional and mechanically stable graphene allowed for the rational design of various continuous flow catalytic membranes for potential industrial applications.

Exploration of the Active Center Structure of Nitrogen-Doped Graphene for Control over the Growth of Co3O4 for a High-Performance Supercapacitor

2017 ◽  
Vol 1 (1) ◽  
pp. 143-153 ◽  
Author(s):  
Xiaoning Tian ◽  
Xiaolong Sun ◽  
Zhongqing Jiang ◽  
Zhong-Jie Jiang ◽  
Xiaogang Hao ◽  
...  
Keyword(s):  
Active Center ◽  
High Performance ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

scholarly journals Ultrafast-charging and long cycle-life anode materials of TiO2-bronze/nitrogen-doped graphene nanocomposites for high-performance lithium-ion batteries

RSC Advances ◽  
2020 ◽  
Vol 10 (71) ◽  
pp. 43811-43824
Author(s):  
Thanapat Autthawong ◽  
Yothin Chimupala ◽  
Mitsutaka Haruta ◽  
Hiroki Kurata ◽  
Tsutomu Kiyomura ◽  
...  
Keyword(s):  
Anode Materials ◽  
High Performance ◽  
High Stability ◽  
Lithium Ion ◽  
Graphene Nanocomposites ◽  
Nitrogen Doped ◽  
Long Cycle Life ◽  
Fast Charging ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

The TiO2-bronze/nitrogen-doped graphene nanocomposites have the potential for fast-charging and have high stability, showing potential as an anode material in advanced power batteries for next-generation applications.

A hierarchical 2D Ni–Mo–S nanosheet@nitrogen doped graphene hybrid as a Pt-free cathode for high-performance dye sensitized solar cells and fuel cells

2017 ◽  
Vol 5 (34) ◽  
pp. 17896-17908 ◽  
Author(s):  
Jayaraman Balamurugan ◽  
Shaik Gouse Peera ◽  
Meng Guo ◽  
Thanh Tuan Nguyen ◽  
Nam Hoon Kim ◽  
...  
Keyword(s):  
High Performance ◽  
Hydrothermal Process ◽  
Dye Sensitized Solar Cells ◽  
Cost Effective ◽  
Nitrogen Doped ◽  
Dye Sensitized ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Energy Conversion Devices ◽  
Sensitized Solar Cells

A novel hybrid of 2D Ni–Mo–S nanosheet integrated nitrogen doped graphene (NG) is successfully developed via a simple, scalable, and cost-effective hydrothermal process, and its application towards energy conversion devices is explored.

Dimensional tailoring of nitrogen-doped graphene for high performance supercapacitors

RSC Advances ◽  
2016 ◽  
Vol 6 (60) ◽  
pp. 55577-55583 ◽  
Author(s):  
Seung Yong Lee ◽  
Chang Hyuck Choi ◽  
Min Wook Chung ◽  
Jae Hoon Chung ◽  
Seong Ihl Woo
Keyword(s):  
High Performance ◽  
Low Frequency ◽  
Frequency Region ◽  
Transfer Resistance ◽  
One Dimensional ◽  
Nitrogen Doped ◽  
Efficient Charge ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Low Mass

In supercapacitors, one dimensional graphene ribbons which form net-like porous structure demonstrate low mass transfer resistance at low frequency region and a consequent efficient charge transferability.

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