Communication
Direct electrolysis of liquid anhydrous ammonia for continuous production of high-purity, pressurized hydrogen at ambient temperature
The electrolyzer directly converts liquid anhydrous NH3 into pressurized, high-purity H2 (>5.5 bar, >99.99%) at 10 °C with a faradaic efficiency of >98.8%, eliminating the need for additional H2 purification and separation processes.
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Oxygen vacancy-induced ferroelectric effect in (111) strontium titanate single crystals controls photoelectrochemical water oxidation
An electric field induces a polarization in SrTiO3−x. This enhances or diminishes photoelectrochemical water oxidation, depending on dipole orientation. According to DFT, the polarization is due to movement of O vacancies at the SrTiO3−x surface.
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Ni and Mo atom pairs as single sites on N-doped graphitic carbon for urea formation by simultaneous CO2 and NO3− reduction with pulsed electrocatalysis
Mo–Ni single atom pairs supported on N-doped carbon efficiently and selectively produce urea (yield of 11.3 mmol g−1 h−1 and 31.8%) from nitrates and CO2 upon optimized pulsed electrochemical reduction conditions (−0.5/−0.7 V vs. RHE).
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Plasmonic gold nanostars conjugated poly(heptazine imide) for photocatalytic H2O2 production from O2 reduction
Outstanding photocatalytic H2O2 production was achieved by integrating plasmonic Au nanostars with PHI nanoflakes.
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How the electric double layer impacts nitrate reduction to ammonia
Multiphysics modelling reveals how the electric double layer governs nitrate transport and how a more negative catalyst potential-of-zero-charge promotes ammonia formation.
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Constructing four-in-one catalysts to realize ultralow voltage hydrogen production at ampere-level current densities
Constructing a four-in-one catalyst to achieve highly efficient hydrogen production by anion-exchange membrane water electrolyzer (AEMWE) coupling with organic small molecule oxidation.
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Synergy between Ni and Fe in NiFe aerogel oxygen evolution reaction catalyst: in situ 57Fe Mössbauer and X-ray absorption spectroscopy studies
In situ spectroscopies reveal the increase of Fe and Ni valence states during oxygen evolution in anion-exchange-membrane water electrolyzers (AEMWE) for hydrogen production.
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Kinetic and process modeling of Guerbet coupling chemistry over Cu–Mg–Al mixed oxides
Kinetic modeling of Guerbet coupling chemistry over a CuMgAlOx catalyst is presented. Integration of the model in a process simulation enables assessing a recycling strategy to optimize the production of diesel fuel precursors.
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High-performance and stable NH3 production using a TiO2-protected Si photocathode and patterned Au loading
TiO2 deposition on silicon photocathode enhances its stability and forms an intimate junction with the Au electrocatalyst. Moreover, optimizing the Au loading amount is crucial for maximizing NH3 production efficiency.