Sub-ppm electrical detection of hydrogen sulfide gas at room temperature based on printed copper acetate–gold nanoparticle composite films

RSC Advances ◽  
2015 ◽  
Vol 5 (18) ◽  
pp. 13525-13529 ◽  
Author(s):  
J. Sarfraz ◽  
A. Määttänen ◽  
B. Törngren ◽  
M. Pesonen ◽  
J. Peltonen ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Gold Nanoparticle ◽  
Room Temperature ◽  
Copper Acetate ◽  
Composite Films ◽  
Electrical Detection ◽  
Ppm Level

This paper presents the sub-ppm level electrical detection of H2S gas at room temperature using printed copper acetate–gold nanoparticle composite films either on (A) silver or (B) gold/AuNP electrodes.

Dielectrophoretic Assembly of Gold Nanoparticle Arrays Evaluated in Terms of Room-Temperature Resistance

2020 ◽  
Vol E103.C (2) ◽  
pp. 62-65
Author(s):  
Yoshinao MIZUGAKI ◽  
Makoto MORIBAYASHI ◽  
Tomoki YAGAI ◽  
Masataka MORIYA ◽  
Hiroshi SHIMADA ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Room Temperature ◽  
Nanoparticle Arrays ◽  
Temperature Resistance

Light-Sensitive Gas Sensors Based on Thiol-Functionalized N-Isopropylacrylamide Polymer–Gold Nanoparticle Composite Films

2019 ◽  
Vol 52 (7) ◽  
pp. 2900-2910 ◽  
Author(s):  
Yuqing Cozzens ◽  
Diane M. Steeves ◽  
Jason W. Soares ◽  
James E. Whitten
Keyword(s):  
Gold Nanoparticle ◽  
Gas Sensors ◽  
Composite Films

One step room temperature photodeposition of Cu/TiO2 composite films and its conversion to CuO/TiO2

2009 ◽  
Vol 517 (19) ◽  
pp. 5621-5624 ◽  
Author(s):  
Eilidh Morrison ◽  
David Gutiérrez-Tauste ◽  
Concepción Domingo ◽  
Elena Vigil ◽  
José A. Ayllón
Keyword(s):  
Room Temperature ◽  
Composite Films ◽  
One Step

Structure and magnetotransport properties of Fe3O4–SiO2 composite films reactively sputtered at room temperature

2004 ◽  
Vol 95 (10) ◽  
pp. 5661-5665 ◽  
Author(s):  
Hui Liu ◽  
E. Y. Jiang ◽  
H. L. Bai ◽  
R. K. Zheng
Keyword(s):  
Room Temperature ◽  
Composite Films

Assembling gold nanoparticle chains using an AC electrical field: Electrical detection of organic thiols

2013 ◽  
Vol 176 ◽  
pp. 368-373 ◽  
Author(s):  
Christian Leiterer ◽  
Steffen Berg ◽  
Antti-Pekka Eskelinen ◽  
Andrea Csaki ◽  
Matthias Urban ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Electrical Detection ◽  
Electrical Field ◽  
Nanoparticle Chains ◽  
Organic Thiols

PITTING MECHANISM OF MILD STEEL IN MARGINALLY SOUR ENVIRONMENTS: PIT PROPAGATION BASED ON ACIDIFICATION BY CATALYTIC OXIDATION OF DISSOLVED HYDROGEN SULFIDE

CORROSION ◽  
10.5006/3858 ◽  
2021 ◽  
Author(s):  
Wei Zhang ◽  
Bruce Brown ◽  
David Young ◽  
Stephen Smith ◽  
Sytze Huizinga ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Mild Steel ◽  
Experimental Measurement ◽  
Thermodynamic Calculation ◽  
Room Temperature ◽  
Steel Surface ◽  
Saturation Degree ◽  
Transitional Metal ◽  
Dissolved Hydrogen ◽  
Dissolved O2

The present work studies pit propagation in marginally sour environments and proposes a credible mechanism. Both thermodynamic calculation and experimental measurement confirmed that H2S can be oxidized by traces of dissolved O2 into SO42- and H+ in the aqueous solutions near room temperature with the transitional metal ions serving as a catalyst. This acidification phenomenon would be more effective near the steel surface, especially inside a pit, where Fe2+ ions are most abundant. Therefore, the saturation degree of mackinawite would be lower inside the pit, which would prohibit the pitting from annihilation.

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