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Table 1 Raw materials involved in the experiment

From: An Important Factor Affecting the Supercapacitive Properties of Hydrogenated TiO2 Nanotube Arrays: Crystal Structure

Materials Purity Provider
Commercial pure titanium plates 99.99% China Research Institute of Nonferrous Metals
NH4F Analytical reagent (≥ 99.7%) Tianjin Kemiou Chemical Reagent Co., Ltd.
Na2SO4 Analytical reagent (≥ 99.7%) Tianjin Kemiou Chemical Reagent Co., Ltd.
Ethylene glycol Analytical reagent (≥ 99.7%) Tianjin Kemiou Chemical Reagent Co., Ltd.
Acetone Chemical reagent (≥ 99.5%) Tianjin Kemiou Chemical Reagent Co., Ltd.
Ethanol Chemical reagent (≥ 99.5%) Tianjin Kemiou Chemical Reagent Co., Ltd.
Deionised water Homemade