Feasibility of hydrogen production from coal electrolysis at intermediate temperatures

Jin, Xin; Botte, Gerardine G.

doi:10.1016/j.jpowsour.2007.06.209

Cited by 52 publications

(34 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Coal char was obtained as the by-product of coal electrolysis and used as a solid carbon source for graphene growth. The detailed description and schematic of coal electrolysis have been discussed in previous work [19,23]. Only a brief description is given here: The continuous coal electrolytic cell (CEC) designed and constructed by Jin and Botte was used for the coal electrolysis.…”

Section: Graphene Synthesismentioning

confidence: 99%

“…Only a brief description is given here: The continuous coal electrolytic cell (CEC) designed and constructed by Jin and Botte was used for the coal electrolysis. [19] The anolyte and catholyte reservoirs were filled with 300 mL of 4 M H 2 SO 4 , which was used as an electrolyte. Iron (II) sulfate heptahydrate and iron (III) sulfate were used as sources for iron ions (40 mM Fe 2+ /40 mM Fe 3+ ) and added to the anodic solution.…”

Section: Graphene Synthesismentioning

confidence: 99%

“…Other than the well-known coal gasification and liquefaction for producing syngas and synthetic fuels, coal electrolysis has been recently demonstrated as a powerful technique for hydrogen production in a clean and efficient manner. [19][20][21][22][23] The electrolyzed coal (coal char) is the by-product or the waste of this process. However, it is also the potential inexpensive solid carbon source for graphene film production.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Coal Char Derived Few-Layer Graphene Anodes for Lithium Ion Batteries

2014

View full text Add to dashboard Cite

Few-layer graphene films were synthesized through chemical vapor deposition technique using coal char as solid carbon source. Raman spectroscopy, X-ray diffraction, transmission electron microscopy, and selected area electron diffraction were used to characterize the graphene films. The electrochemical performance of the coal char derived few layer graphene anodes for lithium ion batteries was investigated by charge/discharge curves and discharge capacity at different current densities. The graphene anode maintained the reversible capacity at ~0.025, 0.013, and 0.007 mAh/cm 2 at a current density of 10, 30, and 50 µA/cm 2 , respectively. The coal char derived graphene anodes show potential applications in thin film batteries for nanoelectronics.

show abstract

Section: Graphene Synthesismentioning

confidence: 99%

Section: Graphene Synthesismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Coal Char Derived Few-Layer Graphene Anodes for Lithium Ion Batteries

2014

View full text Add to dashboard Cite

show abstract

“…One of the applications of this technique can be found in Jin and Botte [16], where it was applied to determine the concentrations of Fe(II) and Fe(III) ions in a coal slurry solution before and after coal electrolysis. The iron ion species have an influence on the electrolysis of coal.…”

Section: Detection Limit and Comparison With Other Techniquesmentioning

confidence: 99%

Electrochemical technique to measure Fe(II) and Fe(III) concentrations simultaneously

Jin

Botte

2009

J Appl Electrochem

Self Cite

View full text Add to dashboard Cite

An electrochemical technique is presented to simultaneously determine the concentrations of Fe(II) and Fe(III) ions using a rotating disk electrode. The method consists of using a steady state polarization technique where the developed limiting currents are measured and related to the concentration of the cations present in solution. Two linear equations were derived which correlate the limiting currents with the concentrations of the pair cations. The equations are used to easily and simultaneously determine the concentrations of the multivalent species. The precision and accuracy of the technique were found to be comparable to other advanced methods for the quantification of cations, such as capillary zone electrophoresis and spectro-photometric sequential injection analysis.

show abstract

“…In contrast, after adding liquid catalyst to the solution, part of the coal was still directly oxidized on the anode surface, while another part was oxidized by the liquid catalyst. The liquid catalyst generates reduction/oxidation (redox) cycles [19][20][21][22][23][24][25] or bridges between the solid coal particles and the solid electrode. Fe 3+ , K 3 Fe(CN) 6 , and V 2 O 5 are oxidative compounds and could directly oxidize the coal particles in the solution.…”

Section: Mechanism Of Solid Catalyst Coupled With Liquid Catalystmentioning

confidence: 99%