Topic
Electrochemistry research, explained
17 open-access electrochemistry studies, each with a flashcard deck and a quiz.
- Ir nanodendrites on ATO for acid OER
TTAB-grown Ir nanodendrites on mesoporous ATO outperform Ir black for oxygen evolution in acid and in a PEM electrolyzer.
- FeMn single-atom nanozyme dual-readout HER2 test
An etched FeMn–N–C nanozyme boosts peroxidase-like activity 2.03-fold and reports HER2 by electrochemistry and 808 nm photothermal readout.
- A copper porphyrin oxidizes water at low overpotential
A molecular Cu(II) porphyrin evolves O2 at 300–440 mV overpotential in neutral phosphate buffer with >93% faradaic efficiency.
- P4VP makes CoPc a selective CO2-to-CO catalyst
Axial pyridine plus a polyvinylpyridine film together raise CoPc’s CO2-to-CO rate and faradaic efficiency while suppressing hydrogen evolution.
- Bismuth oxyhalide films as photoelectrodes
AACVD BiOX films show halide-tuned bandgaps; untreated BiOBr gives about 0.38 mA cm−2 photoanodic current without a sacrificial donor.
- Single silver nanoparticles strip in many shots
SECCM impact transients show 10 nm Ag particles often dissolve in one spike, but larger ones leave, return, and only partly oxidize.
- Ultrathin porous CoP nanosheets drive HER
Phosphidation of Co3O4 yields sub-1.1 nm porous CoP sheets with exposed {200} facets and high HER mass activity.
- Carbon-coated nickel nanoparticles that make CO from CO2
N-doped carbon plus a carbon coat lets metallic Ni nanoparticles reach about 94% CO faradaic efficiency, suppressing hydrogen evolution.
- Hard vs soft Ni–Fe catalysts for making hydrogen
A matrix of S-bridged Ni–Fe nitrosyl complexes shows how NO ‘softness’ trades catalytic potential against acid strength and TOF in HER.
- NaBH4 raises Ni3+ and speeds NiFe LDH OER
Treating NiFe layered double hydroxide with NaBH4 lifts Ni3+/Ni2+ from 0.39 to 1.32 and gives 95.9% faradaic efficiency for O2.
- Pore diameter flips ORR from kinetic to transport control
Narrower Pt–Ni nanozyme channels raise ORR activity at low overpotential by concentrating protons, but at high overpotential O2 reacts at the pore mouth.
- Pyrite mesocrystals reconstruct into OER catalysts
Oleylamine-grown (NiFe)S2 porous cubes form by cluster aggregation; Fe-doped samples reach η10 < 260 mV after converting to S-doped (oxy)hydroxides.
- ITO electrodes are active everywhere at 50 nm
Thousands of nanoscale voltammograms show every ITO patch oxidizes ferrocenedimethanol; only 0.2% is fully reversible, and the old sparse-site model fails.
- Frustrated Lewis pairs oxidize H2 without metals
A carbon Lewis acid, BArF18, and lutidine cleave H2 and oxidize it at carbon electrodes about 1 V milder, without CO poisoning.
- Stibnite in carbon sheets stores sodium better
Natural Sb2S3 anchored on sulfur-doped carbon sheets delivers much higher reversible sodium-storage capacity and cycle retention than raw stibnite.
- PVP lets SECCM map Pt OER in concentrated KOH
A little polyvinylpyrrolidone stops alkaline SECCM droplets from spreading, enabling single-grain OER maps that rank Pt(110)/(111) above (100) at pH 13.8.
- Pyrolysis-free Fe–PIPhen catalyzes alkaline ORR
An Fe2+ coordination polymer of a nitrogen-rich phenanthroline ligand on carbon reduces O2 near 0.85 V with a four-electron pathway.