Improvement of lithium anode deterioration for ameliorating cyclabilities of non-aqueous Li–CO₂ batteries

Abstract

Herein, ruthenium (Ru) nanoparticles were anchored on carbon nanotubes (Ru/CNTs) functionalized as catalyst cathodes for non-aqueous Li–CO2 cells.

Characterizing porous microaggregates and soil organic matter sequestered in allophanic paleosols on Holocene tephras using synchrotron-based X-ray microscopy and spectroscopy

“…The signal derived when the beam passes through the just-coated golden mesh is designated to be carbon-free, and the interference of carbon accumulating in the beam path with spectra normalization is therefore eliminated. The beamline 24A1 was used to obtain high-resolution C 1 s X-ray photoelectron spectroscopy (XPS) spectra and C NEXAFS spectra 57 , 58 , indicating that the beamline is free from significant carbon accumulation/contamination and is thus suitable for C X-ray absorption spectroscopy (XAS).…”

Anchoring Ru/RuO2 Nanoparticles on Porous Carbon Shell as An Efficient Cathode Catalyst for Li‐CO2 Battery

“…Among them, the most pressing problem is that Li 2 CO 3 , the insulating discharge product with wide band gap, is difficult to decompose reversibly at a lower potential [13] . This causes the following two problems: (1) Undecomposed Li 2 CO 3 will clog the pore structure of the cathode catalyst and cover the active site, which will lead to the blocking of the cathode mass transfer process and the passivation of the catalyst, and finally lead to the battery failure; (2) The high charging potential will decompose the organic electrolyte and the commonly used carbon‐based cathode, which further leads to the battery failure [14] . To solve this problem, researchers have proposed many potential solutions, such as heteroatom‐doped porous carbon materials, [15,16] transition metals and their oxides, [17,18] noble metal‐based catalysts, [19,20] single‐atom catalysts [21,22] and soluble catalysts [23,24] .…”

Characterization of porous microaggregates and soil organic matter sequestered in allophanic paleosols on Holocene tephras using synchrotron-based X-ray microscopy and spectroscopy

“…The signal derived when the beam passes through the just-coated golden mesh is designated to be carbon-free, and the interference of carbon accumulating in the beam path with spectra normalization is therefore eliminated. The beamline 24A1 was used to obtain high-resolution C 1s X-ray photoelectron spectroscopy (XPS) spectra and C NEXAFS spectra 50,51 , indicating that the beamline is free from signi cant carbon accumulation/contamination and is thus suitable for C X-ray absorption spectroscopy (XAS).…”