Amperometric determination of NADH at a Nile blue/ordered mesoporous carbon composite electrode

2009 ◽  
Vol 11 (3) ◽  
pp. 530-533 ◽  
Author(s):  
Liande Zhu ◽  
Ruilan Yang ◽  
Xiaoyan Jiang ◽  
Dongxu Yang
Keyword(s):  
Mesoporous Carbon ◽  
Composite Electrode ◽  
Nile Blue ◽  
Carbon Composite ◽  
Ordered Mesoporous Carbon ◽  
Amperometric Determination ◽  
Ordered Mesoporous ◽  
Carbon Composite Electrode

One-pot synthesis of Ni nanoparticle/ordered mesoporous carbon composite electrode materials for electrocatalytic reduction of aromatic ketones

Nanoscale ◽  
2017 ◽  
Vol 9 (45) ◽  
pp. 17807-17813 ◽  
Author(s):  
Zhi-Xia Zhang ◽  
Yupu Liu ◽  
Wang-Jun Meng ◽  
Jinxiu Wang ◽  
Wei Li ◽  
...  
Keyword(s):  
Electrocatalytic Activity ◽  
Mesoporous Carbon ◽  
Composite Electrode ◽  
Electrode Materials ◽  
Carbon Composite ◽  
Electrocatalytic Reduction ◽  
One Pot ◽  
Aromatic Ketones ◽  
Ordered Mesoporous ◽  
Carbon Composite Electrode

The selective electrocatalytic activity of Ni nanoparticle/OMC composites.

Highly sensitive electrochemical sensor based on pyrrolidinium ionic liquid modified ordered mesoporous carbon paste electrode for determination of carbendazim

2015 ◽  
Vol 7 (4) ◽  
pp. 1493-1498 ◽  
Author(s):  
Yu Ya ◽  
Tianshun Wang ◽  
Liping Xie ◽  
Junjie Zhu ◽  
Li Tang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Electrochemical Sensor ◽  
Mesoporous Carbon ◽  
Carbon Composite ◽  
Ordered Mesoporous Carbon ◽  
Carbon Paste ◽  
Ordered Mesoporous ◽  
Liquid Ordered ◽  
Pyrrolidinium Ionic Liquid

A novel electrochemical sensor based on pyrrolidinium ionic liquid-ordered mesoporous carbon composite system for the determination of carbendazim was developed.

Acetylcholinesterase biosensor modified with ATO/OMC for detecting organophosphorus pesticides

2019 ◽  
Vol 43 (2) ◽  
pp. 946-952 ◽  
Author(s):  
Wenjie Hou ◽  
Qianqian Zhang ◽  
Haowei Dong ◽  
Falan Li ◽  
Yanyan Zhang ◽  
...  
Keyword(s):  
Tin Oxide ◽  
Mesoporous Carbon ◽  
Organophosphorus Pesticides ◽  
Ordered Mesoporous Carbon ◽  
Composite Nanomaterials ◽  
Amperometric Determination ◽  
Screen Printed Electrodes ◽  
Ordered Mesoporous ◽  
Antimony Tin Oxide

This work demonstrates the sensitive amperometric determination of organophosphorus pesticides (OPs) on screen-printed electrodes (SPEs) modified with antimony tin oxide-chitosan (ATO-CS) and ordered mesoporous carbon-chitosan (OMC-CS) composite nanomaterials.

ADSORPTIVE STRIPPING DETERMINATION OF TRACE NICKEL USING BISMUTH MODIFIED MESOPOROUS CARBON COMPOSITE ELECTRODE

2017 ◽  
Vol 24 (07) ◽  
pp. 1750094 ◽  
Author(s):  
RUIZHUO OUYANG ◽  
KAI FENG ◽  
YONGFU SU ◽  
TIANYU ZONG ◽  
XIA ZHOU ◽  
...  
Keyword(s):  
Mesoporous Carbon ◽  
Composite Electrode ◽  
Carbon Composite ◽  
Carbon Electrode ◽  
Electrochemical Behaviors ◽  
Determination Of Nickel ◽  
Analytical Curve ◽  
Efficient Alternative ◽  
Carbon Composite Electrode

Novel bismuth nanoparticle-modified mesoporous carbon (MPC) was successfully prepared on a glassy carbon electrode (Bi@MPC/GCE) for the adsorptive stripping voltammetric determination of nickel by complexing with dimethylglyoxime (DMG). The presence of MPC obviously improved the properties of Bi particles like the electron transfer ability, particle size and hydrophicility, important parameters to achieve preferable analytical performances of Bi@MPC/GCE toward Ni(II). The best electrochemical behaviors of Bi@MPC/GCE was obtained for the stripping determination of Ni(II), compared with electrodes individually modified with Bi and MPC. The synergic effect between metallic Bi and ordered MPC (forming a 3D array like Bi microelectrodes) made major contribution to such improved electrochemical properties of Bi@MPC/GCE for Ni(II) sensing. The good linear analytical curve was achieved in a Ni(II) concentration range from 0.1[Formula: see text][Formula: see text]M to 5.0[Formula: see text][Formula: see text]M with a correlation coefficient of 0.9995. The detection limit and sensitivity were calculated to be 1.2[Formula: see text]nM ([Formula: see text]) and 1410[Formula: see text][Formula: see text]A[Formula: see text]mM[Formula: see text][Formula: see text]cm[Formula: see text], respectively. The new method was successfully applied to Ni(II) determination in soybean samples with recoveries higher than 99% and proved to be a simple, efficient alternative for Ni(II) monitoring in real samples.

Amperometric determination of hydrazine using a CuS-ordered mesoporous carbon electrode

2020 ◽  
Vol 187 (6) ◽  
Author(s):  
G. Srinidhi ◽  
S. Sudalaimani ◽  
K. Giribabu ◽  
S.J. Sardhar Basha ◽  
C. Suresh
Keyword(s):  
Mesoporous Carbon ◽  
Ordered Mesoporous Carbon ◽  
Carbon Electrode ◽  
Amperometric Determination ◽  
Ordered Mesoporous

scholarly journals A Hierarchically Ordered Mesoporous-Carbon-Supported Iron Sulfide Anode for High-Rate Na-Ion Storage

Molecules ◽  
2021 ◽  
Vol 26 (14) ◽  
pp. 4349
Author(s):  
Anupriya K. Haridas ◽  
Natarajan Angulakshmi ◽  
Arul Manuel Stephan ◽  
Younki Lee ◽  
Jou-Hyeon Ahn
Keyword(s):  
Mesoporous Carbon ◽  
Anode Materials ◽  
Iron Sulfide ◽  
Carbon Composite ◽  
Ordered Mesoporous Carbon ◽  
Cycle Life ◽  
High Rate ◽  
Volume Changes ◽  
Ordered Mesoporous ◽  
Ion Storage

Sodium-ion batteries (SIBs) are promising alternatives to lithium-based energy storage devices for large-scale applications, but conventional lithium-ion battery anode materials do not provide adequate reversible Na-ion storage. In contrast, conversion-based transition metal sulfides have high theoretical capacities and are suitable anode materials for SIBs. Iron sulfide (FeS) is environmentally benign and inexpensive but suffers from low conductivity and sluggish Na-ion diffusion kinetics. In addition, significant volume changes during the sodiation of FeS destroy the electrode structure and shorten the cycle life. Herein, we report the rational design of the FeS/carbon composite, specifically FeS encapsulated within a hierarchically ordered mesoporous carbon prepared via nanocasting using a SBA-15 template with stable cycle life. We evaluated the Na-ion storage properties and found that the parallel 2D mesoporous channels in the resultant FeS/carbon composite enhanced the conductivity, buffered the volume changes, and prevented unwanted side reactions. Further, high-rate Na-ion storage (363.4 mAh g−1 after 500 cycles at 2 A g−1, 132.5 mAh g−1 at 20 A g−1) was achieved, better than that of the bare FeS electrode, indicating the benefit of structural confinement for rapid ion transfer, and demonstrating the excellent electrochemical performance of this anode material at high rates.

scholarly journals Square-wave voltammetric determination of rutin in pharmaceutical formulations using a carbon composite electrode modified with copper (II) phosphate immobilized in polyester resin

2012 ◽  
Vol 48 (4) ◽  
pp. 639-649 ◽  
Author(s):  
Kellen Heloizy Garcia Freitas ◽  
Orlando Fatibello-Filho ◽  
Ivanildo Luiz de Mattos
Keyword(s):  
Modified Electrode ◽  
Composite Electrode ◽  
Polyester Resin ◽  
Pharmaceutical Formulations ◽  
Carbon Composite ◽  
X Ray ◽  
Square Wave ◽  
Wave Voltammetry ◽  
Carbon Composite Electrode

A carbon composite electrode modified with copper (II) phosphate immobilized in a polyester resin (Cu3(PO4)2-Poly) for the determination of rutin in pharmaceutical samples by square-wave voltammetry is described herein. The modified electrode allows the determination of rutin at a potential (0.20 V vs. Ag/AgCl (3.0 mol L-1 KCl)) lower than that observed at an unmodified electrode. The peak current was found to be linear to the rutin concentration in the range from 9.9 × 10-8 to 2.5 × 10-6 mol L-1, with a detection limit of 1.2×10-8 mol L-1. The response of the electrode was stable, with no variation in baseline levels within several hours of continuous operation. The surface morphology of the modified electrode was characterized by scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) system. The results obtained are precise and accurate. In addition, these results are in agreement with those obtained by the chromatographic method at a 95% confidence level.

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