Surface activation of carbon paper with potassium dichromate lotion and application as a supercapacitor

Cost‐Effective Synthesis of Electrodeposited NiCo2O4 Nanosheets with Induced Oxygen Vacancies: A Highly Efficient Electrode Material for Hybrid Supercapacitors

“…Zhiyu Cheng et al. has reported similar findings to increase the hydrophilicity of commercial carbon materials by using a mixture of H 2 SO 4 and K 2 Cr 2 O 7 , which increases the surface roughness due to the attachment of polar groups [36] . X‐ray photoelectron spectroscopy (XPS) is used to study the elemental and oxidation states of the involved elements.…”

“…Ltd India was chemically activated using a mixture of 20 ml concentrated H 2 SO 4 (98 %) and 2 g of potassium dichromate (K 2 Cr 2 O 7 ). Potassium dichromate powder was added slowly at room temperature and under magnetic stirring [36] . A homogenous mixture was thus obtained by ultrasonicating the mixture for 1 hr.…”

Electrophoretic co‐deposition of Bi2O3–multiwalled carbon nanotubes coating as supercapacitor electrode

“…[1][2][3][4][5][6] Therefore, many efforts have been devoted to designing supercapacitors with novel materials combining the advantages of large surface area and high conductivity. [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] Recently, a series of transition metal oxides such as MnO 2 , [22][23][24] Co 3 O 4 , [25][26][27] V 2 O 5 , 28 NiO, 29 Fe 2 O 3 , 30 ZnO, 31 MgO, 32 and TiO 2 33 have been extensively investigated as pseudocapacitive supercapacitor electrode materials for this purpose.…”

“…Because of their high power density and fast charging/discharging rate, supercapacitors have attracted much attention for meeting the requirement of the growing needs for portable electronic devices 1–6 . Therefore, many efforts have been devoted to designing supercapacitors with novel materials combining the advantages of large surface area and high conductivity 7–21 . Recently, a series of transition metal oxides such as MnO 2 , 22–24 Co 3 O 4 , 25–27 V 2 O 5 , 28 NiO, 29 Fe 2 O 3 , 30 ZnO, 31 MgO, 32 and TiO 2 33 have been extensively investigated as pseudocapacitive supercapacitor electrode materials for this purpose.…”

Au nanoparticle modified carbon paper electrode for an electrocatalytic oxidation nitrite sensor

“…Carbon paper (CP) is a conventional carbon material that is made up of freely distributed short carbon fibres. 7 Thanks to its structure of tunnels and holes, CP can easily offer a good channel for electron transfer and a high surface area for electrodeposition. 8 The remarkable structure, good stability and low cost characteristics make CP a suitable candidate for sensors.…”