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Nafion solution 5 wt

Manufactured by Merck Group
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Nafion solution (5 wt%) is a commercially available product from Merck Group. It is a clear, viscous liquid composed of a 5% solution of Nafion, a perfluorinated sulfonic acid polymer, in a solvent. The core function of this solution is to provide a source of Nafion, which is commonly used as an ion-conducting material in various electrochemical applications.

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Lab products found in correlation

Sodium thiosulfate, by Thermo Fisher Scientific (1 mentions) Potassium hydroxide, by Thermo Fisher Scientific (1 mentions) Tetrapropylammonium bromide, by Thermo Fisher Scientific (1 mentions) Hydrochloric acid (hcl), by Thermo Fisher Scientific (1 mentions) Potassium iodide, by Thermo Fisher Scientific (1 mentions) Anhydrous ethanol, by Merck Group (1 mentions) Lanthanum 3 nitrate hexahydrate, by Thermo Fisher Scientific (1 mentions) Strontium 2 nitrate hexahydrate, by Thermo Fisher Scientific (1 mentions) Cobalt 2 nitrate hexahydrate, by Thermo Fisher Scientific (1 mentions) 2 propanol, by Thermo Fisher Scientific (1 mentions) Oleylamine, by Thermo Fisher Scientific (1 mentions) Hydrogen tetrachloroaurate 3 trihydrate, by Merck Group (1 mentions) Iridium 3 chloride hydrate, by Thermo Fisher Scientific (1 mentions) Iridium 4 oxide powder, by Thermo Fisher Scientific (1 mentions) Cobalt nitrate hexahydrate, by Maclin Biochemical Technology (1 mentions) Hydrochloric acid (hcl), by Sinopharm (1 mentions) Cupric nitrate cu no3 2, by Sinopharm (1 mentions) Monopotassium phosphate kh2po4, by Sinopharm (1 mentions) Ethyl alcohol etoh, by Merck Group (1 mentions) Sulfur powder, by Merck Group (1 mentions)

8 protocols using nafion solution 5 wt

1

Synthesis and Characterization of Perovskite Oxides

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All chemicals were used as received. Anhydrous ethanol and 5 wt% Nafion solution in lower alcohols were purchased from Sigma-Aldrich. Lanthanum (III) nitrate hexahydrate (99.999%), strontium (II) nitrate hexahydrate (99.9%), cobalt (II) nitrate hexahydrate (99.9%), tetrapropylammonium bromide (98%), tetramethylammonium hydroxide (TMAH) pentahydrate (99%), 2-propanol, potassium hydroxide, potassium iodide (≥99%), sodium thiosulfate (0.1 N), potassium iodate (0.1 N) and hydrochloric acid were obtained from Fisher Scientific. Absolute ethanol (200 proof) was obtained from Aaper alcohol. The commercial IrO2 sample was obtained from Strem Chemicals. Oxygen (99.999%) and argon (99.999%) gases were obtained from Praxair. VC was obtained from Cabot Corporation and the NC was prepared as reported elsewhere57 .
Mefford J.T., Rong X., Abakumov A.M., Hardin W.G., Dai S., Kolpak A.M., Johnston K.P, & Stevenson K.J. (2016). Water electrolysis on La1−xSrxCoO3−δ perovskite electrocatalysts. Nature Communications, 7, 11053.
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2

Synthesis and Characterization of Electrocatalysts

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Hydrogen tetrachloroaurate (III) trihydrate (HAuCl4·3H2O, 99.9%) and 5 wt% Nafion solution (∼5% in lower aliphatic alcohols and water, contains 15%–20% water) were purchased from Sigma-Aldrich. Iridium (III) chloride hydrate (IrCl3·xH2O, 99.9%) and Iridium (IV) oxide powder (IrO2, 99%) were purchased from Alfa Aesar. Oleylamine (80%–90%) was purchased from Acros. Carbon black (Vulcan XC-72), commercial Pt/C (20% Pt on Vulcan XC-72) and commercial Ir/C (20% Ir on Vulcan XC-72) were purchased from Premetek. Cyclohexane (C6H12, A.R.), hexane (C6H14, A.R.), ethanol (C2H5OH, A.R.) and iso-propyl alcohol (C3H8O, A.R.) were purchased from Sinopharm Chemical Reagent Co. Ltd. All the chemicals were used as received without further purification. The water used in all experiments was ultrapure (Millipore, 18.25 MΩ/cm).
Wang H., Chen Z.N., Wang Y., Wu D., Cao M., Sun F, & Cao R. (2024). Sub-10-nm-sized Au@AuxIr1−x metal-core/alloy-shell nanoparticles as highly durable catalysts for acidic water splitting. National Science Review, 11(4), nwae056.
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3

Synthesis of Metal-Doped Carbon Catalysts

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Chemicals and Reagents: Iron acetate tetrahydrate (Fe(CO2CH3)2·4H2O), cobalt nitrate hexahydrate (Co(NO3)2·6H2O), ruthenium acetylacetonate (C15H21O6Ru), N,N‐Dimethylformamide (DMF, C3H7NO), potassium hydroxide (KOH), the commercial Pt/C 20 wt% catalyst, and the commercial RuO2 catalyst were purchased from Shanghai Macklin Biochemical Co. Nickel nitrate hexahydrate (Ni(NO3)2·6H2O), isopropanol (C3H8O), and anhydrous ethanol (C2H6O) were bought from Beijing Tongguang Fine Chemicals Company. 5 wt% Nafion solution, and 2,5‐dihydroxyterephthalic acid (C8H6O6) were obtained from Sigma‐Aldrich. Hydrochloric acid was acquired from Sinopharm chemical reagent Co. Ltd. All the reagents were used as received without any further purification.
Huang K., Xia J., Lu Y., Zhang B., Shi W., Cao X., Zhang X., Woods L.M., Han C., Chen C., Wang T., Wu J, & Huang Y. (2023). Self‐Reconstructed Spinel Surface Structure Enabling the Long‐Term Stable Hydrogen Evolution Reaction/Oxygen Evolution Reaction Efficiency of FeCoNiRu High‐Entropy Alloyed Electrocatalyst. Advanced Science, 10(14), 2300094.
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4

Synthesis and Characterization of Hybrid Materials

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Urea (CH4N2O), melamine (C3H6N6) and potassium peroxodisulfate (K2S2O8) were purchased from Aladdin Co. Ltd (Shanghai, China). Potassium chloride (KCl), disodium hydrogen phosphate (Na2HPO4), monopotassium phosphate (KH2PO4) and cupric nitrate (Cu(NO3)2) were provided by Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). Nafion solution (5 wt%) was obtained from Sigma-Aldrich Co., Ltd. (St. Louis, MO, USA). All reagents in this work were of analytical grade and used as received without further purification. The ultrapure water (resistivity of 18.25 MΩ cm) used throughout all experiments was purified through a Millipore-Q water purification system.
Zhao B., Zou X., Liang J., Luo Y., Liang X., Zhang Y, & Niu L. (2022). A Unique, Porous C3N4 Nanotube for Electrochemiluminescence with High Emission Intensity and Long-Term Stability: The Role of Calcination Atmosphere. Molecules, 27(20), 6863.
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5

Cobalt-based Metal-Organic Framework Synthesis

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Cobalt (ii) nitrate hexahydrate (ACS reagent, Co(NO3)2·6H2O, ≥98%), benzenetetracarboxylic acid (H4btec), triethylenediamine (ted), and sulfur powder were purchased from Aldrich. Acetone and N,N-dimethylformamide (DMF) were obtained from TCI Co. Nafion solution (5 wt%) and ethyl alcohol (EtOH) were purchased from Sigma-Aldrich Chemical Co. All chemicals were used without further purification.
Bereketova A., Nallal M., Yusuf M., Jang S., Selvam K, & Park K.H. (2021). A Co-MOF-derived flower-like CoS@S,N-doped carbon matrix for highly efficient overall water splitting. RSC Advances, 11(27), 16823-16833.
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6

Electrochemical CO2 Reduction Protocol

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4,4′-bipyridine (C10H8N2, 98%, Alfa Aesar, Haverhill, MA, USA), copper (II) chloride dihydrate (CuCl2·2H2O, ≥ 99%, Sigma-Aldrich, St. Louis, MO, USA), triblock copolymer Pluronic F127 (Sigma-Aldrich), nitric acid (HNO3, >65%, Boom BV, Meppel, The Netherlands), nafion solution 5 wt. % (Sigma-Aldrich) and ethanol (absolute) were all used as purchased without any further purification. Carbon paper was used as working electrode support. Nafion membrane 117 (Fuel Cell Store, College Station, TX, USA) was used as ion exchange membrane in the electrochemical cell. Potassium bicarbonate (99.97%, KHCO3, Sigma-Aldrich) was used for preparing electrolytes with high-purity deionized water.
Alkoshab M.Q., Thomou E., Abdulazeez I., Suliman M.H., Spyrou K., Iali W., Alhooshani K, & Baroud T.N. (2023). Low Overpotential Electrochemical Reduction of CO2 to Ethanol Enabled by Cu/CuxO Nanoparticles Embedded in Nitrogen-Doped Carbon Cuboids. Nanomaterials, 13(2), 230.
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7

Electrochemical Biosensor Fabrication

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GlutaOx, glutamate monosodium
salt monohydrate, 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride
(EDC), N-hydroxysuccinimide (NHS), Nafion solution
(5 wt%), bovine serum albumin (BSA), and gold(III) chloride trihydrate
(HAuCl4·3H2O) were purchased from Sigma.
GO–COOH and MWNT–COOH were purchased from Xianfeng Nanomaterials
Technology Co., Ltd. Chloroplatinic acid hexahydrate (H2PtCl6) was purchased from Macleans Biochemical Technology
Co., Ltd. (Shanghai, China). Ascorbic acid, lysine, valine, aspartic
acid, alanine, isoleucine, phenylalanine, leucine, glycine, and proline
were purchased from Sinopharm Chemical Reagent Co., Ltd. Company (Shanghai
China). The rest of the reagents are of analytical grade.
Tang S., Wang C., Liu K., Luo B., Dong H., Wang X., Hou P, & Li A. (2022). In Vivo Detection of Glutamate in Tomatoes by an Enzyme-Based Electrochemical Biosensor. ACS Omega, 7(34), 30535-30542.
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8

Metal-Doped Dicyandiamide Catalyst Synthesis

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All reaction reagents and chemicals were obtained and used in their as-received form without any further purification. Dicyandiamide, Co(NO3)2·6H2O, Ni(NO3)2·6H2O, Fe(NO3)3·9H2O, Nafion solution (5 wt%) and cobalt(II) phthalocyanine (CoPc) were obtained from Sigma-Aldrich. Deionized water was obtained through the water purification system (Milli-Q water) in the lab.
Zhang Q., Tan X., Bedford N.M., Han Z., Thomsen L., Smith S., Amal R, & Lu X. (2020). Direct insights into the role of epoxy groups on cobalt sites for acidic H2O2 production. Nature Communications, 11, 4181.
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