scholarly journals A Highly Sensitive Electrochemical Glucose Sensor Based on Room Temperature Exfoliated Graphite-Derived Film Decorated with Dendritic Copper

Materials ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5067
Author(s):  
Jiaxin Tang ◽  
Luo Wei ◽  
Shuaijie He ◽  
Jihui Li ◽  
Ding Nan ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
High Performance ◽  
High Stability ◽  
Room Temperature ◽  
Glucose Sensor ◽  
Three Dimensional ◽  
Exfoliated Graphite ◽  
Highly Sensitive ◽  
Free Glucose ◽  
Good Catalytic Activity

An ultrasensitive enzyme-free glucose sensor was facilely prepared by electrodepositing three-dimensional dendritic Cu on a room temperature exfoliated graphite-derived film (RTEG-F). An excellent electrocatalytic performance was demonstrated for glucose by using Cu/RTEG-F as an electrode. In terms of the high conductivity of RTEG-F and the good catalytic activity of the dendritic Cu structures, the sensor demonstrates high sensitivities of 23.237 mA/mM/cm2, R2 = 0.990, and 10.098 mA/mM/cm2, R2 = 0.999, corresponding to the concentration of glucose ranging from 0.025 mM to 1.0 mM and 1.0 mM to 2.7 mM, respectively, and the detection limit is 0.68 μM. In addition, the Cu/RTEG-F electrode demonstrates excellent anti-interference to interfering species and a high stability. Our work provides a new idea for the preparation of high-performance electrochemical enzyme-free glucose sensor.

Low-Temperature Chemical Synthesis of Three-Dimensional Hierarchical Ni(OH)2-Coated Ni Microflowers for High-Performance Enzyme-Free Glucose Sensor

2016 ◽  
Vol 120 (45) ◽  
pp. 25752-25759 ◽  
Author(s):  
Arumugam Manikandan ◽  
Vediyappan Veeramani ◽  
Shen-Ming Chen ◽  
Rajesh Madhu ◽  
Ling Lee ◽  
...  
Keyword(s):  
Low Temperature ◽  
Chemical Synthesis ◽  
High Performance ◽  
Glucose Sensor ◽  
Three Dimensional ◽  
Free Glucose

Ultraviolet light-emitting diode-assisted highly sensitive room temperature NO2 gas sensor for low-temperature solution-processed ZnO/TiO2 nanorods decorated with plasmonic Au nanoparticles

Nanoscale ◽  
2021 ◽  
Author(s):  
Soon-Hwan Kwon ◽  
Tae-Hyeon Kim ◽  
Sang-Min Kim ◽  
Semi Oh ◽  
Kyoung-Kook Kim
Keyword(s):  
Gas Sensors ◽  
High Performance ◽  
Room Temperature ◽  
Au Nanoparticles ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
No2 Gas Sensor ◽  
Highly Sensitive ◽  
Temperature Solution ◽  
Semiconducting Metal Oxides

Nanostructured semiconducting metal oxides such as SnO2, ZnO, TiO2, and CuO have been widely used to fabricate high performance gas sensors. To improve the sensitivity and stability of gas sensors,...

Nanoporous gold supported chromium-doped NiFe oxyhydroxides as high-performance catalysts for the oxygen evolution reaction

2019 ◽  
Vol 7 (16) ◽  
pp. 9690-9697 ◽  
Author(s):  
Jie-Song Sun ◽  
Yi-Tong Zhou ◽  
Rui-Qi Yao ◽  
Hang Shi ◽  
Zi Wen ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Three Dimensional ◽  
Nanoporous Gold

Chromium-doped NiFe oxyhydroxide nanosheets that are quasi-vertically oriented on three-dimensional nanoporous gold exhibit superior catalytic activity towards the oxygen evolution reaction.

Graphene oxide doped poly(3,4-ethylenedioxythiophene) modified with copper nanoparticles for high performance nonenzymatic sensing of glucose

2015 ◽  
Vol 3 (4) ◽  
pp. 556-561 ◽  
Author(s):  
Ni Hui ◽  
Wenting Wang ◽  
Guiyun Xu ◽  
Xiliang Luo
Keyword(s):  
Graphene Oxide ◽  
Conducting Polymer ◽  
Electrochemical Deposition ◽  
Copper Nanoparticles ◽  
High Performance ◽  
Glucose Sensor ◽  
Cu Nanoparticles ◽  
Nonenzymatic Glucose Sensor ◽  
Nonenzymatic Sensing ◽  
Highly Sensitive

A highly sensitive and stable nonenzymatic glucose sensor was developed through the electrochemical deposition of Cu nanoparticles onto an electrodeposited nanocomposite of conducting polymer PEDOT doped with graphene oxide.

Stability and catalytic properties of μ-oxo and μ-nitrido dimeric iron tetrasulfophthalocyanines in the oxidation of Orange II by tert-butylhydroperoxide

2014 ◽  
Vol 18 (07) ◽  
pp. 604-613 ◽  
Author(s):  
Anna S. Makarova ◽  
Evgeny V. Kudrik ◽  
Sergei V. Makarov ◽  
Oskar I. Koifman
Keyword(s):  
Catalytic Activity ◽  
Aqueous Solutions ◽  
Catalytic Oxidation ◽  
Organic Compounds ◽  
High Stability ◽  
Catalytic Properties ◽  
Orange Ii ◽  
Tert Butylhydroperoxide ◽  
Good Catalytic Activity ◽  
Very High

A study of catalytic activity of μ-nitrido- and μ-oxo-dimeric iron tetrasulfophthalocyanines in the oxidation of Orange II by tert-butylhydroperoxide in aqueous solutions has been performed. It is shown that though in one catalytic cycle activity of μ-oxo-dimer is higher, stability of this complex in oxidative conditions is poor. μ-nitrido-dimer combines relatively good catalytic activity with very high stability in the presence of tert-butylhydroperoxide. The mechanisms of oxidative decomposition of dimers and catalytic oxidation of Orange II have been proposed on the base of kinetic results. The products of catalytic processes are shown to be bio-degradable non-toxic small organic compounds.

scholarly journals Sustainable and recyclable palladium nanoparticles–catalyzed reduction of nitroaromatics in water/glycerol at room temperature

2020 ◽  
pp. 174751982093947
Author(s):  
Bencai Dai ◽  
Yang Zhou ◽  
Changchun Liu ◽  
Jin Chen ◽  
Zhihao Shen ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Palladium Nanoparticles ◽  
High Stability ◽  
Room Temperature ◽  
Catalytic Reduction ◽  
Ambient Pressure ◽  
Green Solvents ◽  
Reduction Activity ◽  
Water Glycerol ◽  
Low Consumption

Palladium nanoparticles with unique catalytic activity and high stability are synthesized. These nanoparticles exhibit excellent catalytic reduction activity for nitroaromatics in green solvents in the presence of H2 at ambient pressure and temperature. The prominent advantages of this nanotechnology include low consumption of catalyst, excellent chemoselectivity, high reusability of the catalyst, and environmentally green solvents.

Effect of Different Iron Sources on In-Situ Growth of Zeolitic Imidazolate Frameworks-8: For Efficient Oxygen Reduction Electrocatalysts

2021 ◽  
Vol 21 (10) ◽  
pp. 5319-5328
Author(s):  
Sha-Sha Luo ◽  
Yu-Meng Ma ◽  
Peng-Wei Li ◽  
Ming-Hua Tian ◽  
Qiao-Xia Li
Keyword(s):  
Catalytic Activity ◽  
High Temperature ◽  
Oxygen Reduction ◽  
High Performance ◽  
Low Cost ◽  
Three Dimensional ◽  
Precious Metals ◽  
High Catalytic Activity ◽  
Zeolitic Imidazolate Frameworks ◽  
Wide Range

Transition metal and nitrogen co-doped carbon-based catalysts (TM-N-C) have become the most promising catalysts for Pt/C due to their wide range of sources, low cost, high catalytic activity, excellent stability and strong resistance to poisoning, especially Fe–N–C metal-organic frameworks (MOFs), which are some of the most promising precursors for the preparation of Fe–N–C catalysts due to their inherent properties, such as their highly ordered three-dimensional framework structure, controlled porosity, and tuneable chemistry. Based on these, in this paper, different iron sources were added to synthesis a sort of zeolitic imidazole frameworks (ZIF-8). Then the imidazole salt in ZIF-8 was rearranged into high N-doped carbon by high-temperature pyrolysis to prepare the Fe–N–C catalyst. We studied the physical characteristics of the catalysts by different iron sources and their effects on the catalytic properties of the oxygen reduction reaction (ORR). From the point of morphology, various iron sources have a positive influence on maintaining the morphology of ZIF-8 polyhedron. Fe–N/C–Fe(NO3)3 has the same anion as zinc nitrate, and can maintain a polyhedral morphology after high-temperature calcination. It had the highest ORR catalytic activity compared to the other four catalyst materials, which proved that there is a certain relationship between morphology and performance. This paper will provide a useful reference and new models for the development of high-performance ORR catalysts without precious metals.

Templated-preparation of a three-dimensional molybdenum phosphide sponge as a high performance electrode for hydrogen evolution

2016 ◽  
Vol 4 (1) ◽  
pp. 59-66 ◽  
Author(s):  
Chen Deng ◽  
Fei Ding ◽  
Xinyuan Li ◽  
Yaofang Guo ◽  
Wei Ni ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
High Performance ◽  
Three Dimensional ◽  
Molybdenum Phosphide ◽  
Binder Free

A sponge-shaped three-dimensional MoP (3D MoP) electrocatalyst is prepared and used as a binder-free electrode for the HER, exhibiting promising catalytic activity.

Fabrication of CuO nanowalls on Cu substrate for a high performance enzyme-free glucose sensor

CrystEngComm ◽  
2010 ◽  
Vol 12 (4) ◽  
pp. 1120-1126 ◽  
Author(s):  
Xiaojun Zhang ◽  
Aixia Gu ◽  
Guangfeng Wang ◽  
Yan Wei ◽  
Wen Wang ◽  
...  
Keyword(s):  
High Performance ◽  
Glucose Sensor ◽  
Cu Substrate ◽  
Free Glucose
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