Title | ||
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Electrodeposition of Pd-Pt Nanocomposites on Porous GaN for Electrochemical Nitrite Sensing. |
Abstract | ||
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In recent years, nitrite pollution has become a subject of great concern for human lives, involving a number of fields, such as environment, food industry and biological process. However, the effective detection of nitrite is an instant demand as well as an unprecedented challenge. Here, a novel nitrite sensor was fabricated by electrochemical deposition of palladium and platinum (Pd-Pt) nanocomposites on porous gallium nitride (PGaN). The obtained Pd-Pt/PGaN sensor provides abundant electrocatalytic sites, endowing it with excellent performances for nitrite detection. The sensor also shows a low detection limit of 0.95 mu M, superior linear ampere response and high sensitivity (150 mu A/mM for 1 to 300 mu M and 73 mu A/mM for 300 to 3000 mu M) for nitrite. In addition, the Pd-Pt/PGaN sensor was applied and evaluated in the determination of nitrite from the real environmental samples. The experimental results demonstrate that the sensor has good reproducibility and long-term stability. It provides a practical way for rapidly and effectively monitoring nitrite content in the practical application. |
Year | DOI | Venue |
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2019 | 10.3390/s19030606 | SENSORS |
Keywords | Field | DocType |
porous GaN,electrodeposition,Pd-Pt nanocomposites,nitrite detection | Gallium nitride,Detection limit,Nanotechnology,Analytical chemistry,Nitrite,Porosity,Platinum,Nanocomposite,Palladium,Engineering,Electrochemistry | Journal |
Volume | Issue | ISSN |
19 | 3 | 1424-8220 |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
7 |
Name | Order | Citations | PageRank |
---|---|---|---|
Rui Xi | 1 | 0 | 0.34 |
Shao-Hui Zhang | 2 | 0 | 0.34 |
Long Zhang | 3 | 2 | 0.72 |
Chao Wang | 4 | 0 | 0.68 |
Lu-Jia Wang | 5 | 0 | 0.34 |
Jing-Hui Yan | 6 | 2 | 0.75 |
Ge-Bo Pan | 7 | 2 | 0.75 |