Surface oxidation of Ru(10-10) and Pt–Ru/Ru(10-10) electrocatalysts and its effect on the hydrogen evolution reaction
SRPES, cyclic voltammetry and DEMS reveal that surface oxidation of Ru(10-10) and Pt0.2Ru0.8/Ru(10-10) electrocatalysts begins at 1.1 V RHE, with adsorbed oxygen species present after cycling to 0.5 and 0.9 V RHE, linking composition and oxidation state to hydrogen evolution activity.
Enhanced PFAS Defluorination through Control of Radical-Dependent Degradation Pathways
Nature Communications study: MoS₂ HER stability is allotrope-dependent — lamellar MoS₂ degrades at open circuit, while amorphous MoS₃ₓ loses sulfur during HER, monitored via simultaneous ICP-MS and EC-MS.
Nafion vs. Fumion: impact of ionomers on the alkaline oxygen evolution reaction
Comparing Nafion vs Fumion ionomer binders in powder-based electrocatalysts shows how ionomer charge affects hydroxide transport and conductivity in the alkaline oxygen evolution reaction, where the reactant itself is negatively charged.
Chaotropic Anions Promote Electrochemical C–C Bond Formation by Reshaping Interfacial Solvation
Testing four anions across the Hofmeister series, the most chaotropic anion, ClO4-, enhanced C2+ product formation by 3.7x over kosmotropic anions, showing anions control CO/CO2 electroreduction by reshaping interfacial water solvation rather than acting directly.
Real-time gas evolution analysis of SEI formation in sodium-ion batteries using chip based electrochemistry mass spectrometry
Chip-based electrochemistry-mass spectrometry, with picomole-per-second sensitivity, resolves real-time gas evolution during SEI formation in sodium-ion batteries on hard-carbon anodes across different solvent systems — one of the first applications of EC-MS to sodium-ion cells.
Slowing Down Zinc Electrodeposition Kinetics Can Maximize and Compromise Anode Stability: How Slow Is Too Slow?
High-donor-number additives slow zinc electrodeposition kinetics to improve plating/stripping reversibility in aqueous zinc batteries, but beyond a critical concentration this over-suppression backfires, compromising rather than stabilizing the zinc anode.
Spatiotemporal Matching of Intermediates Governs Selective Electrochemical C–N Coupling
Electrochemical C-N coupling efficiency is governed by spatiotemporal matching between carbon- and nitrogen-derived intermediates; a molecularly defined Co-Zn dual-site catalyst with ~1.1 nm intersite spacing synchronizes these intermediates to boost selective C-N bond formation.
Key role of oxidizing species driving water oxidation revealed by time-resolved optical and X-ray spectroscopies
Multimodal operando spectroscopy, combining optical UV-Vis and Ir L-edge/O K-edge X-ray absorption with electrochemistry-mass spectrometry and DFT, identifies the sequential depletion of electron density from iridium and oxygen species that drives water oxidation on IrOx electrodes.
Pore Size Effects of Mesoporous N-Doped Carbon Nanospheres as Advanced Support Material on the Activity of Molybdenum Sulfide Catalysts for the Hydrogen Evolution Reaction
Mesoporous N-doped carbon nanosphere supports with tunable pore sizes enhance the hydrogen evolution reaction activity of molybdenum sulfide (MoSx) catalysts, offering a more abundant and lower-cost alternative to platinum.
O2 Reduction Stimulates Adatom Generation on Cu(111) Catalyzing Hydrogen Evolution
Electrochemistry-mass spectrometry shows that oxygen reduction on Cu(111) in perchloric acid stimulates adatom generation by annealing vacancy-adatom defects and restructuring the surface, which in turn catalyzes the hydrogen evolution reaction.