Results 181 to 190 of about 49,998 (296)

Molecular Electrocatalyst Enables Direct Electrochemical Capture and Conversion of CO<sub>2</sub> up to Atmospheric Concentration. [PDF]

open access: yesAngew Chem Int Ed Engl
Vettori M   +6 more
europepmc   +1 more source

Wrinkled Strain‐Enriched High‐Entropy Metallene Enables Cross‐Site Tandem Nitrate‐to‐Ammonia

open access: yesAngewandte Chemie, EarlyView.
A wrinkled 2D PdFeCoNiCuIn high‐entropy metallene overcomes the low atom utilization of high‐entropy alloys. Indium‐induced strain and p‐d hybridization enable a cross‐site tandem pathway for nitrate reduction to ammonia. It achieves 99.3% Faradaic efficiency and an NH3 yield rate of 4.55 mmol h−1 mgcat−1.
Tianfang Yang   +6 more
wiley   +2 more sources

Atomic‐Scale Understanding of Selectivity Control in Nitrate Reduction on Cu(100) Under Acidic and Alkaline Conditions

open access: yesAngewandte Chemie, EarlyView.
A combination of ab initio molecular dynamics simulations and density functional theory calculations clarifies the pH‐dependent origin of the selectivity of nitrate reduction on Cu(100). ABSTRACT We investigate the nitrate reduction reaction (NO3 RR) on the Cu(100) surface using grand‐canonical density functional theory (GC‐DFT) under constant ...
Ebrahim Tayyebi, Kai S. Exner
wiley   +2 more sources

Electrolyte‐Replacement‐Free Continuous Electrocatalytic Desalination Coupled With CO2 Reduction at Record Throughput and Low Cost

open access: yesAngewandte Chemie, EarlyView.
A continuous electrocatalytic desalination system powered by CO2 electroreduction that eliminates electrolyte replacement through a self‐balancing circulating design. Using a five‐chamber architecture and an efficient cobalt‐based catalyst, it achieves ultrafast salt removal, high CO production efficiency, and stable long‐term operation, offering a ...
Man Liang   +8 more
wiley   +2 more sources

Solar‐Driven Ammonia Synthesis From Nitrate Reduction Paired With CO2 Capture for Sustainable Agriculture via a Robust CuPd Heterojunction

open access: yesAngewandte Chemie, EarlyView.
Laser‐assisted synthesis of CuPd amorphous/crystalline heterojunction demonstrates >80% Faradaic efficiency for nitrate‐to‐ammonia electroreduction across wide potential windows. The integrated solar‐powered electrolyzer achieves 6% solar‐to‐ammonia energy efficiency at 0.4 sun, 6–20 mg h−1 CO2 capture rate, and stability exceeding 100 h.
Weihua Guo   +18 more
wiley   +2 more sources

Solvent‐Induced Covalent Bond Softening Boosts Battery Voltage

open access: yesAngewandte Chemie, EarlyView.
The strong attractive interaction between the nucleophilic center of the solvent and the electrophilic region of the covalently bonded cathode fragment triggers charge transfer. This results in the electron population in the antibonding orbital of the covalent bond, leading to bond weakening and elongation, and consequently increasing the cathode ...
Yanyan Wang   +6 more
wiley   +2 more sources

Tailoring Reconstruction of Co/Cu Mixed Oxide-Derived Tandem Electrocatalysts via <i>In Situ</i> Electrochemical Dissolution-Redeposition for Enhanced Nitrate-to-Ammonia Conversion. [PDF]

open access: yesJACS Au
G Winkler ME   +12 more
europepmc   +1 more source

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