scholarly journals Aryl fluoride functionalized graphene oxides for excellent room temperature ammonia sensitivity/selectivity

RSC Advances ◽  
2018 ◽  
Vol 8 (36) ◽  
pp. 20440-20449 ◽  
Author(s):  
Farheen Khurshid ◽  
M. Jeyavelan ◽  
Keisuke Takahashi ◽  
M. Sterlin Leo Hudson ◽  
S. Nagarajan
Keyword(s):  
Graphene Oxide ◽  
Room Temperature ◽  
Click Reaction ◽  
Functionalized Graphene ◽  
Graphene Oxides ◽  
Covalent Functionalization ◽  
Ammonia Sensing ◽  
Aryl Fluoride

Covalent functionalization of graphene oxide (GO) through ‘‘click’’ reaction and its applications towards ammonia sensing has been demonstrated.

Calixarene-functionalized graphene oxide composites fixed on glassy carbon electrodes for electrochemical detection

RSC Advances ◽  
2016 ◽  
Vol 6 (94) ◽  
pp. 91910-91920 ◽  
Author(s):  
Peng Zhang ◽  
Yaling Wang ◽  
Dongxiang Zhang ◽  
Cong Liu ◽  
Die Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Composite Materials ◽  
Electrochemical Detection ◽  
Carbon Electrodes ◽  
Functionalized Graphene ◽  
Graphene Oxides ◽  
Covalent Functionalization ◽  
Functionalized Graphene Oxide ◽  
Glassy Carbon Electrodes ◽  
Oxide Composites

Four composite materials were prepared by grafting calixarene derivatives onto the surfaces of graphene oxide (GO) via covalent functionalization to yield covalently functionalized graphene oxides (CFGOs).

Layer by layer assembled functionalized graphene oxide-based polymer brushes for superlubricity on steel-steel tribocontact

Soft Matter ◽  
2021 ◽  
Author(s):  
Suprakash Samanta ◽  
Rashmi Ranjan Sahoo
Keyword(s):  
Graphene Oxide ◽  
Nucleophilic Addition ◽  
Polymer Brushes ◽  
Addition Reaction ◽  
Layer By Layer ◽  
Functionalized Graphene ◽  
Covalent Functionalization ◽  
Functionalized Graphene Oxide ◽  
Nucleophilic Addition Reaction ◽  
Branched Polyethylenimine

Present study demonstrates a simple and multistep approach for the preparation of covalent functionalization of chemically prepared graphene oxide (GO) by branched polyethylenimine (PEI) through nucleophilic addition reaction to prepare...

Chemically fluorinated graphene oxide for room temperature ammonia detection at ppb levels

2017 ◽  
Vol 5 (36) ◽  
pp. 19116-19125 ◽  
Author(s):  
Yeon Hoo Kim ◽  
Ji Soo Park ◽  
You-Rim Choi ◽  
Seo Yun Park ◽  
Seon Yong Lee ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Functional Groups ◽  
Room Temperature ◽  
Gas Adsorption ◽  
Ammonia Sensing ◽  
Charge Distributions ◽  
Ammonia Detection ◽  
Adsorption Energies ◽  
Fluorinated Graphene ◽  
Fluorinated Graphene Oxide

Detection of ppb level ammonia at room temperature is demonstrated using chemically fluorinated graphene oxide (CFGO). Fluorine adatom extremely enhances ammonia sensing capabilities through the changes of the charge distributions on adjacent functional groups, resulting in the variation in gas adsorption energies.

scholarly journals The effects of central metals on ammonia sensing of metallophthalocyanines covalently bonded to graphene oxide hybrids

RSC Advances ◽  
2017 ◽  
Vol 7 (54) ◽  
pp. 34215-34225 ◽  
Author(s):  
Yong Li ◽  
Bin Wang ◽  
Zheying Yu ◽  
Xiaoqing Zhou ◽  
Di Kang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Room Temperature ◽  
Sensing Properties ◽  
Ammonia Sensing ◽  
Covalently Bonded ◽  
Amidation Reaction

Stably dispersed aPcM–GO hybrids were prepared by a facile amidation reaction with excellent NH3 sensing properties at room temperature, which rely to the aPcM functionalization on GO.

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