Nitrogen-Doped Zeolitic Imidazolate Framework and Particle-Reduced Graphene Oxide Composites as Electrochemical Sensors and Battery-Type Supercapacitors

2021 ◽  
Author(s):  
Shamim Ahmed Hira ◽  
Kang Hyun Park
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrochemical Sensors ◽  
Zeolitic Imidazolate Framework ◽  
Nitrogen Doped ◽  
Reduced Graphene ◽  
Oxide Composites

Nano-structure tin/nitrogen-doped reduced graphene oxide composites as high capacity lithium-ion batteries anodes

2017 ◽  
Vol 28 (24) ◽  
pp. 18994-19002 ◽  
Author(s):  
Nutpaphat Jarulertwathana ◽  
Viratchara Laokawee ◽  
Warapa Susingrat ◽  
Seong-Ju Hwang ◽  
Thapanee Sarakonsri
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Reduced Graphene Oxide ◽  
High Capacity ◽  
Lithium Ion ◽  
Nano Structure ◽  
Nitrogen Doped ◽  
Reduced Graphene ◽  
Oxide Composites

MOF derived CoP-decorated nitrogen-doped carbon polyhedrons/reduced graphene oxide composites for high performance supercapacitors

2019 ◽  
Vol 48 (28) ◽  
pp. 10661-10668 ◽  
Author(s):  
Jun Zhu ◽  
Xiaoping Shen ◽  
Lirong Kong ◽  
Guoxing Zhu ◽  
Zhenyuan Ji ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Nitrogen Doped ◽  
Assembly Strategy ◽  
Reduced Graphene ◽  
Nitrogen Doped Carbon ◽  
Oxide Composites ◽  
Enhanced Electrochemical Performance

A CoP-NPC/RGO composite prepared through an efficient pyrolysis–phosphidation–assembly strategy exhibits an enhanced electrochemical performance.

scholarly journals Nitrogen-doped activated carbon/graphene composites as high-performance supercapacitor electrodes

RSC Advances ◽  
2017 ◽  
Vol 7 (31) ◽  
pp. 19098-19105 ◽  
Author(s):  
Yue Li ◽  
Tong-Xin Shang ◽  
Jian-Min Gao ◽  
Xiao-Juan Jin
Keyword(s):  
Graphene Oxide ◽  
Activated Carbon ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Activated Carbons ◽  
Koh Activation ◽  
Pyrolysis Products ◽  
Nitrogen Doped ◽  
Reduced Graphene ◽  
Oxide Composites

Nitrogen-doped activated carbon/reduced graphene oxide composites are prepared by pre-carbonization of the precursors (mixture of graphene oxide and nitrogen-doped activated carbons) and KOH activation of the pyrolysis products.

Zeolitic imidazole framework derived composites of nitrogen-doped porous carbon and reduced graphene oxide as high-efficiency cathode catalysts for Li–O2 batteries

2017 ◽  
Vol 4 (9) ◽  
pp. 1533-1538 ◽  
Author(s):  
Ming Zhong ◽  
Xin Zhang ◽  
Dong-Hui Yang ◽  
Bei Zhao ◽  
Zhaojun Xie ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Reduced Graphene Oxide ◽  
Porous Carbon ◽  
High Efficiency ◽  
Cathode Catalysts ◽  
Nitrogen Doped ◽  
Reduced Graphene ◽  
Lithium Oxygen Batteries ◽  
Oxide Composites

MOF derived nitrogen-doped porous carbon and reduced graphene oxide composites were prepared and they exhibit outstanding electrochemical performance for lithium–oxygen batteries.

scholarly journals Graphene Oxide: A Smart (Starting) Material for Natural Methylxanthines Adsorption and Detection

Molecules ◽  
2019 ◽  
Vol 24 (23) ◽  
pp. 4247 ◽  
Author(s):  
Rita Petrucci ◽  
Isabella Chiarotto ◽  
Leonardo Mattiello ◽  
Daniele Passeri ◽  
Marco Rossi ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Graphene Oxide ◽  
Nucleic Acids ◽  
Reduced Graphene Oxide ◽  
Electrochemical Sensors ◽  
Enzymatic Digestion ◽  
Biologically Active ◽  
Polar Solvents ◽  
Dna And Rna ◽  
Reduced Graphene

Natural methylxanthines, caffeine, theophylline and theobromine, are widespread biologically active alkaloids in human nutrition, found mainly in beverages (coffee, tea, cocoa, energy drinks, etc.). Their detection is thus of extreme importance, and many studies are devoted to this topic. During the last decade, graphene oxide (GO) and reduced graphene oxide (RGO) gained popularity as constituents of sensors (chemical, electrochemical and biosensors) for methylxanthines. The main advantages of GO and RGO with respect to graphene are the easiness and cheapness of synthesis, the notable higher solubility in polar solvents (water, among others), and the higher reactivity towards these targets (mainly due to – interactions); one of the main disadvantages is the lower electrical conductivity, especially when using them in electrochemical sensors. Nonetheless, their use in sensors is becoming more and more common, with the obtainment of very good results in terms of selectivity and sensitivity (up to 5.4 × 10−10 mol L−1 and 1.8 × 10−9 mol L−1 for caffeine and theophylline, respectively). Moreover, the ability of GO to protect DNA and RNA from enzymatic digestion renders it one of the best candidates for biosensors based on these nucleic acids. This is an up-to-date review of the use of GO and RGO in sensors.

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