Energy-Saving Ambient Electrosynthesis of Nylon-6 Precursor Coupled with Electrocatalytic Upcycling of Polyethylene Terephthalate.

Cyclohexanone oxime is an important intermediate in the chemical industry, especially for the manufacture of nylon-6. The traditional cyclohexanone oxime production strongly relies on cyclohexanone-hydroxylamine and cyclohexanone ammoxidation processes, which require harsh reaction conditions and consume considerable amounts of energy. Herein, direct electrosynthesis of cyclohexanone oxime is reported from environmental pollutants nitrite and cyclohexanone with almost 100% yield by using low-cost CuSe nanosheets as electrocatalysts.

Modulating Hydrogen Adsorption by Unconventional p-d Orbital Hybridization over Porous High-Entropy Alloy Metallene for Efficient Electrosynthesis of Nylon-6 Precursor.

Renewable electricity driven electrosynthesis of cyclohexanone oxime (CHNO) from cyclohexanone (CHO) and nitrogen oxide (NO) is a promising alternative to traditional environment-unfriendly industrial technologies for green synthesis of CHNO. Precisely controlling the reaction pathway of the CHO/NO-involved electrochemical reductive coupling reaction is crucial for selectively producing CHNO, which is yet still challenging. Herein, we report a porous high-entropy alloy PdCuAgBiIn metallene (HEA-PdCuAgBiInene) to boost the electrosynthesis of CHNO from CHO and nitrite, achieving a high Faradaic efficiency (47.

Selective CO Electroreduction to Formate on Polypyrrole-Modified Oxygen Vacancy-Rich Bi O Nanosheet Precatalysts by Local Microenvironment Modulation.

Challenges remain in the development of highly efficient catalysts for selective electrochemical transformation of carbon dioxide (CO ) to high-valued hydrocarbons. In this study, oxygen vacancy-rich Bi O nanosheets coated with polypyrrole (Bi O @PPy NSs) are designed and synthesized, as precatalysts for selective electrocatalytic CO reduction to formate. Systematic material characterization demonstrated that Bi O @PPy precatalyst can evolve intoBi O CO @PPy nanosheets with rich oxygen vacancies (Bi O CO @PPy NSs) via electrolyte-mediated conversion and function as the real active catalyst for CO reduction reaction electrocatalysis.

Engineering Under-Coordinated Active Sites with Tailored Chemical Microenvironments over Mosaic Bismuth Nanosheets for Selective CO Electroreduction to Formate.

Selective electrochemical reduction of CO into fuels or chemical feedstocks is a promising avenue to achieve carbon-neutral goal, but its development is severely limited by the lack of highly efficient electrocatalysts. Herein, cation-exchange strategy is combined with electrochemical self-reconstruction strategy to successfully develop diethylenetriamine-functionalized mosaic Bi nanosheets (mBi-DETA NSs) for selective electrocatalytic CO reduction to formate, delivering a superior formate Faradaic efficiency of 96.87% at a low potential of -0.