In order to demonstrate a low-impedance surface coating, a nano-porous layer of platinum was electrodeposited on the microelectrodes using a current of (−4 µA) per electrode in a solution of chloroplatinic acid diluted with HCl and lead acetate (1% chloroplatinic acid; 0.005% lead acetate; 0.01 M HCl, all from Sigma Aldrich, St. Louis, MO, USA). A platinum wire (Sigma Aldrich, St. Louis, MO, USA) was used as the counter electrode and every electrode was electroplated under DC conditions for 40 s using a current source (Keithley 2400 Source Meter, Keithley Instruments, Cleveland, OH, USA).
Chloroplatinic acid
Manufactured by Merck Group
Sourced in United States, Germany
Chloroplatinic acid is a chemical compound used in various laboratory applications. It serves as a source of platinum, which is a valuable metal in chemical research and industrial processes. The compound has a chemical formula of H2PtCl6 and is typically provided as a yellow to orange-red crystalline solid or aqueous solution. Chloroplatinic acid is commonly used as a precursor for the preparation of other platinum-containing compounds and catalysts, as well as in electroplating and electroless plating techniques. Its core function is to provide a source of platinum for various laboratory and industrial needs.
Automatically generated - may contain errors
Lab products found in correlation
Lead acetate, by Merck Group (6 mentions)
Ethanol, by Merck Group (5 mentions)
Nitric acid, by Merck Group (3 mentions)
Hydrochloric acid (hcl), by Merck Group (3 mentions)
Acetone, by Merck Group (3 mentions)
Ethylene glycol, by Merck Group (3 mentions)
Polyvinylpyrrolidone, by Merck Group (3 mentions)
Chloroauric acid, by Merck Group (3 mentions)
Sodium borohydride, by Merck Group (3 mentions)
Sodium chloride (nacl), by Merck Group (3 mentions)
Sulfuric acid, by Merck Group (3 mentions)
Lithium perchlorate, by Merck Group (2 mentions)
Acetonitrile, by Merck Group (2 mentions)
Cacl2, by Merck Group (2 mentions)
Nafion, by Merck Group (2 mentions)
Bovine serum albumin (bsa), by Merck Group (2 mentions)
Glutaraldehyde, by Merck Group (2 mentions)
Tin 4 chloride pentahydrate, by Thermo Fisher Scientific (2 mentions)
Cerium 3 nitrate hexahydrate, by Merck Group (2 mentions)
Perchloric acid, by Merck Group (2 mentions)
51 protocols using chloroplatinic acid
1
Low-Impedance Platinum Coating Electrodeposition
2
Electrochemical Detection of SARS-CoV-2 Spike Protein
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All chemicals were used as received without further purification. The chemicals were purchased as follows: pyrrole 98% − from Alfa Aesar (Germany), sulfuric acid (H2SO4; 96%) from Lachner (Czech Republic), nitric acid (HNO3, 63%), sodium hydroxide (NaOH, 98%), and chloroplatinic acid (H2PtCl6, 40% Pt) from Merck (Germany), potassium phosphate (KH2PO4, 98%) from Honeywell Riedel-de Haen (Germany), sodium chloride (NaCl, 99,5%), potassium chloride (KCl, 99,5%), and disodium hydrogen phosphate (Na2HPO4, 99%) from Carl Roth (Germany). SARS-CoV-2 spike glycoproteins were purchased from UAB Baltymas (Lithuania).
The experiment was performed using potentiostat/galvanostat Metrohm-Autolab model μAutolabIII/FRA2 μ3AUT71079 controlled by NOVA 2.1.3 software (EcoChemie, The Netherlands). All measurements were done in a homemade cell. The total volume of the cell was 250 μL. Three-electrode system consisted of a working electrode (WE) – Pt disk with 1 mm diameter sealed in glass, reference electrode (RE) – Ag/AgCl, and counter electrode (CE) – Pt disk of 2 mm diameter.
The experiment was performed using potentiostat/galvanostat Metrohm-Autolab model μAutolabIII/FRA2 μ3AUT71079 controlled by NOVA 2.1.3 software (EcoChemie, The Netherlands). All measurements were done in a homemade cell. The total volume of the cell was 250 μL. Three-electrode system consisted of a working electrode (WE) – Pt disk with 1 mm diameter sealed in glass, reference electrode (RE) – Ag/AgCl, and counter electrode (CE) – Pt disk of 2 mm diameter.
3
Fabrication of Dye-Sensitized Solar Cells
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Titanium tetrachloride (TiCl4), acetonitrile (AN), 3-methoxypropionitrile (MPN), 4-tert-butyl-pyridine (TBP), tert-butanol, iodine 99.8% (I2), chloroplatinic acid (H2PtCl6·6H2O), 1-propyl-2,3-dimethyl-imidazolium iodide (PMII), lithium perchlorate (LiClO4) and anhydrous lithium iodide (LiI) were used as received from Merck (Darmstadt, Germany) without further purification. Ethyl cellulose and α-terpineol were bought from Fluka (Buchs, Switzerland). Fluorine-doped tin oxide (FTO) glass with surface resistivity of 7 Ω cm−2 was purchased from Ruilong Optoelectronics Co.,Ltd (Miaoli Taiwan). The ruthenium polypyridyl photosensitizer Z907 was obtained from Everlight Chemical Industrial Co. (Taipei, Taiwan).
4
Synthesis of Colloidal Metallic Nanoparticles
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All analytical-grade chemicals,
including chloroplatinic acid (H2PtCl6·H2O), poly(vinylpyrrolidone) (PVP; MW = 40000), cobalt nitrate
hexahydrate [Co(NO3)2·6H2O],
oleylamine (C18H37N), tetraethylorthosilicate
(TEOS; SiC8H20O4), ethylene glycol
(C2H6O2), ethanol (C2H6O), mesitylene (C9H12), hydrochloric
acid (HCl), hexane (C6H12), ammonium fluoride
(NH4F), and acetone (C3H6O) were
purchased from Merck Hungary Ltd. and were used without further purification.
For inductively coupled plasma mass spectrometry (ICP-MS) measurements,
concentrated HNO3 and HCl were used (Aristar for trace
metal analysis, VWR Chemicals). Ultrahigh-purity (5.0 quality) gas
cylinders of argon, oxygen, nitrogen, hydrogen, and the gas mixture
CO2:H2 = 1:4 were purchased from Messer Hungarogáz
Ltd.
including chloroplatinic acid (H2PtCl6·H2O), poly(vinylpyrrolidone) (PVP; MW = 40000), cobalt nitrate
hexahydrate [Co(NO3)2·6H2O],
oleylamine (C18H37N), tetraethylorthosilicate
(TEOS; SiC8H20O4), ethylene glycol
(C2H6O2), ethanol (C2H6O), mesitylene (C9H12), hydrochloric
acid (HCl), hexane (C6H12), ammonium fluoride
(NH4F), and acetone (C3H6O) were
purchased from Merck Hungary Ltd. and were used without further purification.
For inductively coupled plasma mass spectrometry (ICP-MS) measurements,
concentrated HNO3 and HCl were used (Aristar for trace
metal analysis, VWR Chemicals). Ultrahigh-purity (5.0 quality) gas
cylinders of argon, oxygen, nitrogen, hydrogen, and the gas mixture
CO2:H2 = 1:4 were purchased from Messer Hungarogáz
Ltd.
5
Synthesis and Characterization of Redox-Active Complexes
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1,1′-Dimethyl-4,4′-bipyridinium
dichloride (MVCl2, >98%), disodium ethylenediaminetetraacetate
dihydrate (EDTA·2Na 2H2O, >99%),l -cysteine
(>99%), triphenylphosphine (TPP, >99%), chloroplatinic acid
(H2PtCl6, 99.995% trace metal basis), and poly(vinyl
alcohol) (PVA, MW ≈ 130 000, >99% hydrolyzed) were purchased
from Merck and used with no further purification. Tris(2,2′-bipyridyl)ruthenium(II)
chloride hexahydrate ([Ru(bpy)3]Cl2 6H2O, 99.95%) was purchased from Merck and re-crystallized from methanol.
Anhydrous ruthenium(IV) oxide (RuO2, ≥99.9%) was
purchased from STREM Chemicals. N2 used for purging (filtered
on Drierite, 99.9995% purity) was supplied by Nippon Gases. Type 1
ultrapure water was obtained with an Elga PURELAB Classic UV apparatus;
all other spectrophotometric grade solvents were supplied by Merck.
dichloride (MVCl2, >98%), disodium ethylenediaminetetraacetate
dihydrate (EDTA·2Na 2H2O, >99%),
(>99%), triphenylphosphine (TPP, >99%), chloroplatinic acid
(H2PtCl6, 99.995% trace metal basis), and poly(vinyl
alcohol) (PVA, MW ≈ 130 000, >99% hydrolyzed) were purchased
from Merck and used with no further purification. Tris(2,2′-bipyridyl)ruthenium(II)
chloride hexahydrate ([Ru(bpy)3]Cl2 6H2O, 99.95%) was purchased from Merck and re-crystallized from methanol.
Anhydrous ruthenium(IV) oxide (RuO2, ≥99.9%) was
purchased from STREM Chemicals. N2 used for purging (filtered
on Drierite, 99.9995% purity) was supplied by Nippon Gases. Type 1
ultrapure water was obtained with an Elga PURELAB Classic UV apparatus;
all other spectrophotometric grade solvents were supplied by Merck.
6
Photocatalytic Materials Synthesis
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The chemicals used in this study are as follows: Tungsten oxide (WO3, nanopowder, Sigma-Aldrich), titanium dioxide (TiO2, P25, nanopowder, Evonik), bismuth vanadate (BiVO4, nanopowder, Alfa Aesar), PA (HIO4·2H2O, ≥99.0%, Sigma-Aldrich), iodic acid (HIO3, ≥99.5%, Sigma-Aldrich), sodium periodate (NaIO4, ≥99.8%, Sigma-Aldrich), sodium iodate (NaIO3, 99%, Sigma-Aldrich), sodium iodide (NaI, ≥99.0%, Sigma-Aldrich), chloroplatinic acid (H2PtCl6·xH2O, ≥99.9%, Sigma-Aldrich), MeOH (CH3OH, 99.9%, Samchun Chemicals), IPA ((CH3)2CHOH, 99.5%, Sigma-Aldrich), AT (CH3COCH3, 99.98%, Burdick Jackson), DCM (CH2Cl2, ≥99.8%, Sigma-Aldrich), C5 (CH3(CH2)3CH3, ≥99.0, Sigma-Aldrich), ClC3 (CH3CH2CH2Cl, 99%, Alfa Aesar), 5,5-dimethyl-1-pyrroline-N-oxide (DMPO, ≥ 98.0, Sigma-Aldrich). Tol (300 ppmv, N2 balance), AA (1000 ppmv, N2 balance), FA (100 ppmv, N2 balance), high-purity synthetic air (79% N2/21% O2) were purchased from Deokyang Company. All chemicals were of reagent grade and used as received without further purification. Ultrapure deionized water (18 MΩ cm) prepared using a Millipore system was used.
7
Fabrication of Patterned PVDF Membranes for Hybrid Nanomaterial Devices
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Hydrophilic PVDF membranes (0.22 μm pore size, Millipore) were patterned with ma-N 490 photoresist (micro resist technology GmbH) according to previously published protocol.[25 (link)] Au-TiO2NW dispersion (1.8 mL, 92 mm2 open filter area) followed by PBS buffer (10 mL) was vacuum filtered through the patterned membrane. PDMS was spin-coated (Sylgard 184, 1 krpm spin speed, 30 s) onto a silanized 2 inch glass wafer and semi-cured (70 °C, 6 min). The dried membrane was put in contact with the PDMS under pressure (80 °C, 10 min) and peeled off after being soaked in DI water. A diluted PDMS solution (PDMS:heptane 1:20) was spin coated (6 krpm 60 s) and cured (80 °C, 20 min), followed by another spin-coated PDMS layer (6 krpm, 120 s) and curing (80 °C, 16 h). After 10 min UV ozone treatment, a poly(vinyl alcohol) (PVA) layer was spin-coated on top (10%, 3 krpm, 60 s). A dry film resist layer was laminated on top (LP Dry Film Photopolymer), exposed, and developed. The substrate was dry etched (RIE, 250 W, 100 mTorr, O2/CF4, 400 s) and the PVA and dry resist stripped in boiling DI water. The SEG was cut out with a scalpel and clamped on a custom-made printed circuit board connector. Finally, a thin layer of platinum was electroplated onto the electrodes (Sigma-Aldrich, chloroplatinic acid solution 0.8 wt% in DI water, pulsed −1.5 V, 20 Hz, 10% duty cycle).
8
Graphene-Reinforced Polyacrylonitrile Nanocomposites
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Polyacrylonitrile (PAN, Mw: 150 000
g/mol), N,N-dimethyl formamide (DMF,
99%), chloroplatinic
acid (H2PtCl6, 8 wt % in H2O), and
hydrazine hydrate (N2H4) were purchased from
Sigma-Aldrich. Low-molecular-weight PAN (Mw: 45 000 g/mol) was synthesized through free radical polymerization
method.35 (link) TEGO Grade 2 (thermally exfoliated
graphene oxide) having average number of graphene layers of 27 calculated
from XRD data by using the Debye–Scherer equation and 4% oxygen
content was obtained from Nanografen Co. The characterization results
of TEGO are given inFigure S6 .
g/mol), N,N-dimethyl formamide (DMF,
99%), chloroplatinic
acid (H2PtCl6, 8 wt % in H2O), and
hydrazine hydrate (N2H4) were purchased from
Sigma-Aldrich. Low-molecular-weight PAN (Mw: 45 000 g/mol) was synthesized through free radical polymerization
method.35 (link) TEGO Grade 2 (thermally exfoliated
graphene oxide) having average number of graphene layers of 27 calculated
from XRD data by using the Debye–Scherer equation and 4% oxygen
content was obtained from Nanografen Co. The characterization results
of TEGO are given in
9
Synthesis of Pt/FeOx Catalyst by Co-Precipitation
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Pt1/FeOx was prepared by co-precipitation of an aqueous mixture of chloroplatinic acid (H2PtCl6·6H2O, 37 mgPt mL−1, 2.6 mL, 99.9%, Sigma-Aldrich) and Fe(NO3)3·9H2O (1 mol L−1, 40 mL) with Na2CO3 solution (11 g Na2CO3 in 100 mL H2O) at 50 °C under stirring for 3 h, and ageing static for a further 2 h. The resulting solid was recovered by filtration, washed with deionized water and dried at 60 °C overnight. A portion of the Pt1/FeOx was then calcined as above at 800 °C and denoted as Pt1/FeOx-C800. The Pt loading determined by ICP was 1.8 wt%.
10
Electrochemical Characterization of 4-ATP
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4-Aminothiophenol (4-ATP, 97%), chloroplatinic acid (H2PtCl6·xH2O), Lithium perchlorate (LiClO4, 98%), methanol (MeOH, anhydrous, 99.8%) were purchased from Sigma-Aldrich. All electrochemical experiments were conducted on an Autolab potentiostat (Metrohm, Netherland) by using three-electrode cell in which (modified) glassy carbon electrodes (GCE) were used as working electrode, Ag/AgCl electrode as reference electrode and Pt wire as counter electrode. The morphology of all samples were visualized under scanning electron microscopy (SEM) (Hitachi S-4800) operated at 5 kV acceleration voltage.
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