Re: [geo] Lithium-CO2 tech and CO2 extraction

[Andrew Lockley]

http://www.cell.com/joule/fulltext/S2542-4351(17)30008-9

CO2 Electrochemistry: A New Strategy for CO2 Fixation and Energy Storage
Yu Qiao
,
Jin Yi[image: ']Correspondence information about the author Jin YiEmail the
author Jin Yi 
,
Shichao Wu
,
Yang Liu
,
Sixie Yang
,
Ping He
,
Haoshen Zhou4,[image: ']Correspondence information about the author Haoshen
ZhouEmail the author Haoshen Zhou 
4Lead Contact
Publication stage: In Press Corrected Proof
DOI: http://dx.doi.org/10.1016/j.joule.2017.07.001
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Figure 1
Figure 2Figure 3Figure 4
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Figure 1

Characterizations and Schematic of the Electrochemical CO2Reduction Process

(A and B) Galvanostatic discharge profiles of the Li-CO2 cell with a
configuration of (sputtered gold cathode)/(CO2-saturated 0.5 M LiClO4-DMSO
electrolyte)/lithium foil. The current is 5 μA and the capacity is limited
at 10 μAh (A) and 20 μAh (B), respectively.

(C and D) Capacity-dependent *in situ* Raman spectra recorded during the
corresponding discharge processes above: 10 μAh (C) and 20 μAh (D) cut-off
capacity, respectively. Spectra collected on different discharge plateaus
are separated by different colors (red and blue). *In situ* Raman peak
intensities for Li2CO3 (1,085 cm−1), carbon (G band, 1,587 cm−1), and Li2O
(521 cm−1) are demonstrated in the corresponding voltage profile (insert),
respectively.

(E) SEM images of the cathodes harvested at various discharge depths, in
comparison with the pristine cathode.

(F) The schematic for the achievement of CO2 fixation via
Li-CO2electrochemistry
technology.

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[geo] Lithium-CO2 tech and CO2 extraction

[Eric Durbrow]

If I understand this correctly, researchers have developed a way to take a
stream of pure CO2 and extract oxygen and carbon at very high efficiency.
At least according to the summary, ambient stream may be possible and
efficient.

summary:
https://phys.org/news/2017-08-battery-inspired-strategy-carbon-fixation.html

P.S. I tried to find the abstract but could not get to it. Perhaps not out
yet.

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