Browsing Fakultet for naturvitenskap (NV) by Author "Qin, Bo"
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Electrochemical Behavior of Tin in Molten LiCl-KCl at 450 ℃
Qin, Bo; Cui, Peng; Martinez, Ana Maria Cuellar; Haarberg, Geir Martin (Journal article; Peer reviewed, 2019)The electrochemical behavior of tin was studied with cyclic voltammetry at glassy carbon electrodes in the fused LiCl-KCl at 450 ℃. Metallic tin deposition on the glassy carbon electrode occurs at a potential of around ... -
Electrochemical Reduction of Indium and Tin Oxides from Molten Salts
Qin, Bo (Doctoral thesis at NTNU;2015:187, Doctoral thesis, 2015)Indium is considered to be a rare element. The largest end use for indium is ITO powder. ITO is indium oxide combined with 10 percent tin oxide and this represent approximately 72 percent of the indium market. ITO can ... -
Electrochemical Reduction of Iron Oxides in Aqueous NaOH Electrolyte Including Iron Residue from Nickel and Zinc Electrowinning Processes
Haarberg, Geir Martin; Qin, Bo; Khalaghi, Babak (Journal article, 2022)Experiments were carried out in NaOH-H2O (50–50 wt%) electrolyte with a suspension of Fe2O3 particles at ~100 ℃. A rotating disk electrode of graphite or silver was used as the cathode. The current efficiency for iron ... -
Electrodeposition of indium and tin from molten chloride electrolytes
Haarberg, Geir Martin; Qin, Bo; Martinez, Ana Maria Cuellar (Journal article; Peer reviewed, 2017)Recycling of electronic waste to recover the metal value is of prime importance, especially for metals with limited resources. An electrochemical approach should be an interesting option to develop sustainable recycling ... -
Electrolysis of indium oxide in LiCl-KCl based molten salts with a liquid cathode
Cui, Peng; Qin, Bo; Martinez, Ana Maria Cuellar; Haarberg, Geir Martin (Peer reviewed; Journal article, 2020)In this work, the feasibility of extracting of metallic indium from In2O3and ITO through the direct electrochemical reduction at 450°C in molten salt LiCl-KCl was studied. Cyclic voltammetry was carried out to study the ... -
Removal and recovery of indium from ITO coated glass and scraps using molten salt electrolysis
Cui, Peng; Qin, Bo; Martinez, Ana Maria Cuellar; Haarberg, Geir Martin (Peer reviewed; Journal article, 2019)Indium is an important strategic resource due to the scarcity for the metal. In the present study, molten salt electrolysis is used to reduce indium from ITO coated glass and scraps in order to seek a new way to recycle ... -
The Study of Jarosite Waste Used for Suspension Electrolysis in Aqueous NaOH Electrolyte
Qin, Bo; Haarberg, Geir Martin (Peer reviewed; Journal article, 2022)Jarosite waste is normally generated from the purification process of zinc production. It contains many valuable elements such as zinc, lead, and especially iron. In the present study, jarosite waste was treated through ... -
The Behavior of Additives LiF, MgF2 and KF on Current Efficiency in Aluminium Electrolysis
Cui, Peng; Qin, Bo; Haarberg, Geir Martin (Journal article; Peer reviewed, 2019)The effects of LiF, MgF2 and KF additions to the electrolyte on current efficiency were investigated during aluminium electrolysis using base NaF−AlF3−Al2O3 system with a cryolite ratio of 2.5, 4% Al2O3 and 5% CaF2 at 980°C ...