Hydrogen peroxide aqueous solution

All chemical reagents were used as received. Iron(iii) chloride hexahydrate (FeCl₃·6H₂O, 97%), 1,3,5-benzenetricarboxylic acid (trimesic acid, H₃BTC), 1,2-diaminoethane anhydrous (EDA, 98%), graphite, sulfuric acid (H₂SO₄, 95–98%), nitric acid (HNO₃, 65–68%), phosphoric acid (H₃PO₄, 85%), hydrogen peroxide aqueous solution (H₂O₂, 30%) and potassium permanganate (KMnO₄, 99.5%) were purchased from Sinopharm Chemical Reagent. MB (70%) was purchased from Aladdin Chemical Reagent. All chemicals were of analytical grade and were used without further purification. Water used in all experiments was distilled and deionized.

All chemicals were analytical grade and used as received without further purification. Deionized water was used in all experiments. Sulfuric acid (H₂SO₄, 99.5%), potassium hexacyanoferrate [K₃Fe(CN)₆, 99%], CYC oxime (99%), deuterium oxide (D₂O, 99.9 atom% D), and maleic acid (C₄H₄O₄, 99.9%) were purchased from Adamas Reagent Co. Ltd. (Tansoole). Potassium hydroxide (KOH, 99.9%) was supplied by Macklin. Cerium sulfate titration solution [Ce(SO₄)₂, 0.1 M] was purchased from Xiamen Xibiao. Ammonium bicarbonate (NH₄CO₃, 21.0 to 22.0%) was purchased from general reagent (Tansoole). CYC (99%) and hydrogen peroxide aqueous solution (H₂O₂, 30%) were purchased from Sinopharm Chemical Reagent Co. Ltd.