Effective and rapid electrochemical detection of hydrazine by nanoporous gold

Yan, Xianliang; Meng, Fanhui; Cui, Songzhi; Liu, Jiangguo; Gu, Junjie; Zou, Zhigang

doi:10.1016/j.jelechem.2011.07.011

Cited by 51 publications

(31 citation statements)

References 36 publications

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“…The ability to use an electrode that has an electrochemically useful surface area that is 10-100 times larger than a traditional electrode thus offers much promise. Examples of small molecules that have been studied include dopamine [144], ascorbic acid [144], hydrogen peroxide [143,145], nitrite [146], cysteine [147], nitrophenol [148,149], hydrazine [150], and glucose [151].…”

Section: Small Molecule Sensingmentioning

confidence: 99%

“…The amperometric detection of NO 2 − yielded a detection limit of 1 M [146]. Nanoporous gold fixed onto a glassy carbon electrode with Nafion was also used in the electrochemical detection of hydrazine [150]. The oxidation of hydrazine on nanoporous gold, bulk gold, and bare glassy carbon was made.…”

Section: Small Molecule Sensingmentioning

confidence: 99%

“…The oxidation of hydrazine on nanoporous gold, bulk gold, and bare glassy carbon was made. Using amperometry and a rotating disk electrode, the authors report that the steadystate current for the oxidation of hydrazine was proportional to concentration and the detection limit using this method was 16.7 nM [150]. More recently, the oxidation of L-cysteine has been studied on both flat gold and nanoporous gold supported on glassy carbon [147].…”

Section: Small Molecule Sensingmentioning

confidence: 99%

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Nanoporous Gold Electrodes and Their Applications in Analytical Chemistry

Collinson

2013

ISRN Analytical Chemistry

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Nanoporous gold prepared by dealloying Au:Ag alloys has recently become an attractive material in the field of analytical chemistry. This conductive material has an open, 3D porous framework consisting of nanosized pores and ligaments with surface areas that are 10s to 100s of times larger than planar gold of an equivalent geometric area. The high surface area coupled with an open pore network makes nanoporous gold an ideal support for the development of chemical sensors. Important attributes include conductivity, high surface area, ease of preparation and modification, tunable pore size, and a bicontinuous open pore network. In this paper, the fabrication, characterization, and applications of nanoporous gold in chemical sensing are reviewed specifically as they relate to the development of immunosensors, enzyme-based biosensors, DNA sensors, Raman sensors, and small molecule sensors.

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Section: Small Molecule Sensingmentioning

confidence: 99%

Section: Small Molecule Sensingmentioning

confidence: 99%

Section: Small Molecule Sensingmentioning

confidence: 99%

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Nanoporous Gold Electrodes and Their Applications in Analytical Chemistry

Collinson

2013

ISRN Analytical Chemistry

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“…methanol, formic acid4041. Besides the good catalytic activity of NPG in glucose, hydrazine hydrate electrooxidation reactions and etc424344, electrocatalysts by plating NPG substrate with Pt, Pd et al . also exhibit outstanding catalytic activities454647.…”

mentioning

confidence: 99%

Pt-Bi decorated nanoporous gold for high performance direct glucose fuel cell

Hong

Yin

Yan

et al. 2016

Sci Rep

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Binary PtBi decorated nanoporous gold (NPG-PtBi) electrocatalyst is specially designed and prepared for the anode in direct glucose fuel cells (DGFCs). By using electroless and electrochemical plating methods, a dense Pt layer and scattered Bi particles are sequentially coated on NPG. A simple DGFC with NPG-PtBi as anode and commercial Pt/C as cathode is constructed and operated to study the effect of operating temperatures and concentrations of glucose and NaOH. With an anode noble metal loading of only 0.45 mg cm−2 (Au 0.3 mg and Pt 0.15 mg), an open circuit voltage (OCV) of 0.9 V is obtained with a maximum power density of 8 mW cm−2. Furthermore, the maximum gravimetric power density of NPG-PtBi is 18 mW mg−1, about 4.5 times higher than that of commercial Pt/C.

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“…NPG structures are typically fabricated in free-standing and supported thin film formats by chemical dealloying of Au-based binary alloys such as Au-Ag [30,34,35] and Au-Sn alloys [36][37][38]. Recently, NPG electrodes have also been studied as a sensor to detect H 2 O 2 [39] and N 2 H 4 [40,41]. The bicontinuous open porosity of NPG electrodes is beneficial for fast mass transport of reactants at the solid-liquid interface, and the large effective surface area can promote the electrochemical reactions.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional nanoporous Au films as high-efficiency enzyme-free electrochemical sensors

Gan

et al. 2015

Electrochimica Acta

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Effective and rapid electrochemical detection of hydrazine by nanoporous gold

Cited by 51 publications

References 36 publications

Nanoporous Gold Electrodes and Their Applications in Analytical Chemistry

Nanoporous Gold Electrodes and Their Applications in Analytical Chemistry

Pt-Bi decorated nanoporous gold for high performance direct glucose fuel cell

Three-dimensional nanoporous Au films as high-efficiency enzyme-free electrochemical sensors

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