Production of copper from minerals through controlled and sustainable electrochemistry

Rodchanarowan, Aphichart; Sarswat, Prashant K.; Bhide, Ravindra; Free, Michael L.

doi:10.1016/j.electacta.2014.07.015

Cited by 16 publications

(4 citation statements)

References 18 publications

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“…Self-driven copper retrieval from solutions containing Cu 2+ combined with power harvesting makes this new approach suitable for copper recovery. The efficiencies are comparable to the results achieved with other electrochemical copper recovery methods, such as electrowinning 27 28 . In contrast to the electrowinning requiring power supply, which consumed 3.3 kWh kg −1 Cu 28 , the CRFC produced power, which was equivalent to an energy production of 9.3 kWh Kg −1 of Cu (data derived from 800 mg L −1 Cu 2+ as the catholyte).…”

Section: Resultssupporting

confidence: 74%

Assembly of coupled redox fuel cells using copper as electron acceptors to generate power and its in-situ retrieval

Zhang

et al. 2016

Sci Rep

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Energy extraction from waste has attracted much interest nowadays. Herein, a coupled redox fuel cell (CRFC) device using heavy metals, such as copper, as an electron acceptor is assembled to testify the recoveries of both electricity and the precious metal without energy consumption. In this study, a NaBH4-Cu(II) CRFC was employed as an example to retrieve copper from a dilute solution with self-electricity production. The properties of the CRFC have been characterized, and the open circuit voltage was 1.65 V with a maximum power density of 7.2 W m−2 at an initial Cu2+ concentration of 1,600 mg L−1 in the catholyte. 99.9% of the 400 mg L−1 copper was harvested after operation for 24 h, and the product formed on the cathode was identified as elemental copper. The CRFC demonstrated that useful chemicals were recovered and the electricity contained in the chemicals was produced in a self-powered retrieval process.

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Section: Resultssupporting

confidence: 74%

Assembly of coupled redox fuel cells using copper as electron acceptors to generate power and its in-situ retrieval

Zhang

et al. 2016

Sci Rep

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“…The products before and after annealing at 200 o C were composed of the different sizes. It was found that the size of the particles after annealing at 200 o C is bigger than that before annealing because at higher temperature the particles tend to agglomerate more than that at low temperature [15]. shows the presence of the diffraction peaks which could be assigned to the SBT with rhombohedral crystal structure.…”

Section: Morphology Of the Synthesized Sbt Particles By Semmentioning

confidence: 96%

Synthesis of Ternary Semiconductor Silver Bismuth Telluride by Chemical Bath Deposition

Termsaithong

Rodchanarowan

2017

KEM

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In this study, the synthesis of the ternary semiconductor sensitized silver bismuth telluride (AgBiTe2: SBT) particles was produced in the solution of AgNO3, Bi (NO3)3×5H2O and Na2O3Te by using a chemical bath deposition (CBD) method and annealing at 200°C for 1 h. According to scanning electron microscopy (SEM), the particle size of SBT after annealing was bigger than before annealing. Based on X-ray diffraction, the SBT after annealing for 1h became more crystalline. In addition, the XRF data also demonstrated that the SBT powder consists of Ag, Bi, and Te as dominant elements. The XRD result confirms a successful growth of the SBT particles with rhombohedral crystal structure. Based on the obtaining results, the SBT particles were successfully synthesized and potentially applied for solar cell application.

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“…A C C E P T E D M A N U S C R I P T 4 well as providing smooth surface morphology [24][25][26][27][28]. This technique applies a potential/current to a working electrode in a controlled fashion such as square wave, triangle wave, etc.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Pulsed current co-electrodeposition of kesterite Cu2ZnSnS4 absorber material on fluorinated tin oxide (FTO) glass substrate

Termsaithong

Munprom

Shah

et al. 2018

Surface and Coatings Technology

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The film of kesterite Cu2ZnSnS4 (CZTS) was prepared on a fluorinated tin oxide (FTO) substrate by a galvanostatically pulsed electrodeposition. The effect of duty cycles on electrodeposition was investigated at 33%, 50%, and 67% duty cycle. For the characterization, the prepared films were analyzed by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), x-ray spectroscopy (XRD), UV-vis spectroscopy, Raman spectroscopy, and an atomic emission elemental analyzer. According to the experiments, surface morphologies of the CZT precursor appear to be uniform with fewer pores. After sulfurization, the morphologies of CZTS film become more uniform. When considering duty cycles, a higher duty cycle resulted in the surface being denser, more compact, more uniform, and smoother. Based upon the XRD and EDS, the film's composition consists of copper, zinc, tin, and sulfur. The compound formulae is also proved to be copper zinc tin sulfide.

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Production of copper from minerals through controlled and sustainable electrochemistry

Cited by 16 publications

References 18 publications

Assembly of coupled redox fuel cells using copper as electron acceptors to generate power and its in-situ retrieval

Assembly of coupled redox fuel cells using copper as electron acceptors to generate power and its in-situ retrieval

Synthesis of Ternary Semiconductor Silver Bismuth Telluride by Chemical Bath Deposition

Pulsed current co-electrodeposition of kesterite Cu2ZnSnS4 absorber material on fluorinated tin oxide (FTO) glass substrate

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