Catalytic role of in-situ formed C-N species for enhanced LiCO decomposition.

Sluggish kinetics of the CO reduction/evolution reactions lead to the accumulation of LiCO residuals and thus possible catalyst deactivation, which hinders the long-term cycling stability of Li-CO batteries. Apart from catalyst design, constructing a fluorinated solid-electrolyte interphase is a conventional strategy to minimize parasitic reactions and prolong cycle life. However, the catalytic effects of solid-electrolyte interphase components have been overlooked and remain unclear.

Structural Distortion in the Wadsley-Roth Niobium Molybdenum Oxide Phase Triggering Extraordinarily Stable Battery Performance.

Wadsley-Roth niobium oxide phases have attracted extensive research interest recently as promising battery anodes. We have synthesized the niobium-molybdenum oxide shear phase (Nb, Mo) O with superior electrochemical Li-ion storage performance, including an ultralong cycling lifespan of at least 15000 cycles. During electrochemical cycling, a reversible single-phase solid-solution reaction with lithiated intermediate solid solutions is demonstrated using in situ X-ray diffraction, with the valence and short-range structural changes of the electrode probed by in situ Nb and Mo K-edge X-ray absorption spectroscopy.

Revisiting the Role of Discharge Products in Li-CO Batteries.

Rechargeable lithium-carbon dioxide (Li-CO ) batteries are promising devices for CO recycling and energy storage. However, thermodynamically stable and electrically insulating discharge products (DPs) (e.g.

Introducing 4s-2p Orbital Hybridization to Stabilize Spinel Oxide Cathodes for Lithium-Ion Batteries.

Oxides composed of an oxygen framework and interstitial cations are promising cathode materials for lithium-ion batteries. However, the instability of the oxygen framework under harsh operating conditions results in fast battery capacity decay, due to the weak orbital interactions between cations and oxygen (mainly 3d-2p interaction). Here, a robust and endurable oxygen framework is created by introducing strong 4s-2p orbital hybridization into the structure using LiNi Mn O oxide as an example.

Boosting Formate Production from CO at High Current Densities Over a Wide Electrochemical Potential Window on a SnS Catalyst.

The flow-cell design offers prospect for transition to commercial-relevant high current density CO electrolysis. However, it remains to understand the fundamental interplay between the catalyst, and the electrolyte in such configuration toward CO reduction performance. Herein, the dramatic influence of electrolyte alkalinity in widening potential window for CO electroreduction in a flow-cell system based on SnS nanosheets is reported.

A Self-Assembled CO Reduction Electrocatalyst: Posy-Bouquet-Shaped Gold-Polyaniline Core-Shell Nanocomposite.

Here it was demonstrated that the decoration of gold (Au) with polyaniline is an effective approach in increasing its electrocatalytic reduction of CO to CO. The core-shell-structured gold-polyaniline (Au-PANI) nanocomposite delivered a CO -to-CO conversion efficiency of 85 % with a high current density of 11.6 mA cm .

Facile electrochemical synthesis of ultrathin iron oxyhydroxide nanosheets for the oxygen evolution reaction.

We propose a facile approach to synthesise ultrathin iron oxyhydroxide nanosheets for use in catalysing the electrochemical oxygen evolution reaction. This two dimensional material lowers the overpotential and provides a platform for further performance enhancement via integration of species such as nickel into an ultrathin nanosheet structure.