1c:I[419806,["/_next/static/chunks/bb923814e1f4d2e9.js","/_next/static/chunks/dd3ee9f5b7716ca6.js","/_next/static/chunks/4204a0ae82542ca8.js","/_next/static/chunks/30036bedc5269936.js","/_next/static/chunks/6e1aa89a642f40be.js","/_next/static/chunks/cd5e572bc3e4eb92.js","/_next/static/chunks/8ffd0b71567920d8.js","/_next/static/chunks/67ea6dfd21f16c5f.js","/_next/static/chunks/24eb4379f68013fd.js","/_next/static/chunks/b8cd775ffdf935bd.js","/_next/static/chunks/983103cd9eb7b428.js","/_next/static/chunks/d4ac9dcf27f6ff52.js","/_next/static/chunks/294b9525248c8e5f.js"],"default"] 1d:T507,Abstract Highly crystalline monoclinic scheelite BiVO 4 powders are synthesized from aqueous Bi(NO 3 ) 3 and NH 4 VO 3 solutions over a wide range of pH by a hydrothermal process. BiVO 4 powders with various morphologies, surface textures, and grain shapes are selectively synthesized by adjusting the pH. The dependence of the Raman peak position and intensity on the synthesis conditions indicates that the symmetry distortions in the local structure of the synthesized BiVO 4 are affected by the preparation conditions. These variations in the local structure result in the modification of the electronic structure of BiVO 4 , which results in a blue‐shift in the UV‐vis absorption spectrum of hydrothermally synthesized BiVO 4 in comparison with a well‐crystallized sample prepared by homogeneous coprecipitation. The photocatalytic activities for O 2 evolution from an aqueous AgNO 3 solution under visible‐light irradiation are strongly dependent on the pH used in the synthesis. The differences in the photocatalytic activities between BiVO 4 samples prepared under various conditions is attributed to the degree of structural distortion, leading to differences in the mobility of photogenerated holes formed in the valence band, which consists of Bi 6s and O 2p orbitals.1e:T488,Electrochemical reduction of CO₂ (CO₂RR) to multi-carbon products is a promising technology to store intermittent renewable electricity into high-added-value chemicals and close the carbon cycle. Its industrial scalability requires electrocatalysts to be highly selective to certain products, such as ethylene or ethanol. However, a substantial knowledge gap prevents the design of tailor-made materials, as the properties ruling the catalyst selectivity remain elusive. Here we combined in situ surface-enhanced Raman spectroscopy and density functional theory on Cu electrocatalysts to unveil the reaction scheme for CO₂RR to C₂₊ products. Ethylene generation occurs when *OC-CO(H) dimers form via CO coupling on undercoordinated Cu sites. The ethanol route opens up only in the presence of highly compressed and distorted Cu domains with deep s-band states via the crucial intermediate *OCHCH₂. By identifying and tracking the critical intermediates and specific active sites, our work provides guidelines to selectively decouple ethylene and ethanol production on rationally designed catalysts.1f:T4fc,Pyridine-mediated electrochemical reduction of CO2 has attracted much attention owing to the promise of producing valuable oxygenates with high yields. However, no detectable level of methanol was observed in the pyridine-mediated CO2 electrolysis on Pt over the entire potential range investigated (−0.2 to −0.8 V vs RHE) in this study. Formate was observed at a potential below −0.6 V vs RHE in the absence and presence of pyridine, but the presence of pyridine does accelerate the rate of formate production. Numerous reaction mechanisms have been proposed on the basis of reactivity measurements, cyclic voltammetry, or computational methods; however, a direct experimental mechanistic investigation has been lacking. By employing surface-enhanced infrared absorption spectroscopy, we identified an adsorbed unidentate COOHL intermediate on Pt regardless of the presence of pyridine. Surface coverage of the COOHL intermediate relative to that of adsorbed CO appears to increase with the concentration of pyridine in the electrolyt

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