The traditional NH3 production method (Haber-Bosch process) is currently complemented by electrochemical synthesis at ambient conditions, but the rather low selectivity (as indicated Faradaic efficiency) for reduction of molecular N2 into impedes progress. Here, we present a powerful to significantly boost efficiency Au electrocatalysts 67.8% nitrogen reaction (NRR) increasing their electron density through construction inorganic donor-acceptor couples Ni and nanoparticles. unique role...

Abstract Production of ammonia is currently realized by the Haber–Bosch process, while electrochemical N 2 fixation under ambient conditions recognized as a promising green substitution in near future. A lack efficient electrocatalysts remains primary hurdle for initiation potential electrocatalytic synthesis ammonia. For cheaper metals, such copper, limited progress has been made to date. In this work, we boost reduction reaction catalytic activity Cu nanoparticles, which originally...

Abstract NO x − reduction acts a pivotal part in sustaining globally balanced nitrogen cycle and restoring ecological environment, ammonia (NH 3 ) is an excellent energy carrier the most valuable product among all products of reaction, selectivity which far from satisfaction due to intrinsic complexity multiple‐electron ‐to‐NH process. Here, we utilize Schottky barrier‐induced surface electric field, by construction high density electron‐deficient Ni nanoparticles inside nitrogen‐rich...

Electrochemical reduction of aqueous nitrates has emerged as a sustainable and practical approach in combining water treatment ammonia fertilizer synthesis. However, the development highly integrated catalytic electrodes with consistently high activity from non-noble metals remains challenging issue despite potential to greatly decrease costs promote real-world applications. Here, we report high-performance electrode electron-abundant surfaces obtained direct boronization nickel foam,...

A COOH-terminated nitrogen-doped carbon aerogel exhibited 100% selectivity to two-electron oxygen reduction, exceeding reported carbonaceous and noble metal catalysts.

Platinum (Pt) is the most effective bench-marked catalyst for producing renewable and clean hydrogen energy by electrochemical water splitting. There demand high HER catalytic activity to achieve efficient utilization minimize loading of Pt in catalysts. In this work, we significantly boost mass nanoparticles Ptx /Co 8.3 times higher than that commercial Pt/C using Co/NC heterojunctions as a heterogeneous version electron donors. The highly coupled interfaces between metal enrich density...

Semihydrogenation of alkynes is a crucial industrial process for the mass production polymer-grade alkenes and fine chemicals. An electrocatalytic semihydrogenation strategy presents mild but powerful alternative to conventional processes under critical conditions yet suffering from low catalytic efficiency due sacrificed intrinsic activity depress unwanted overhydrogenation. Here, we report negatively charged Pt (Ptδ−) induced by coupling with strong electron donator W2C nanoparticles in...

Production of more than 20 million tons epoxides per year from olefins suffers low atom economy due to the use oxidants and complex catalysts with unsatisfactory selectivity, leading huge environmental economic costs. We present a proof-of-concept application electron-rich RuO2 nanocrystals boost highly selective epoxidation cyclooctene via direct oxygen transfer water as sole source under mild conditions. The enhanced electron enrichment Schottky effect nitrogen-doped carbons largely...

Merging existing catalysts together as a cascade catalyst may achieve "one-pot" synthesis of complex but functional molecules by simplifying multistep reactions, which is the blueprint sustainable chemistry with low pollutant emission and consumption energy materials only when smooth mass exchange between different ensured. Effective strategies to facilitate active centers, dominate final activity various catalysts, have not been reached until now, even though charged interfaces due work...

The activation of C-H bonds is a central challenge in organic chemistry and usually key step for the retro-synthesis functional natural products due to high chemical stability bonds. Electrochemical methods are powerful alternative activation, but this approach requires overpotential homogeneous mediators. Here, we design electron-deficient W

Programmable amine N‐alkylation provides a new method to combine the required alkyl groups with molecules according actual demand and precisely regulate biological pharmaceutical properties of life science molecules. However, only electrochemical mono‐methylation amines has been achieved via C‒N coupling CO2 accompanied by an unsatisfactory Faraday efficiency (FE) lower than 10%. Herein, we developed programmable electrocatalytic two controllable one methyl group. Both experimental...

Programmable amine N‐alkylation provides a new method to combine the required alkyl groups with molecules according actual demand and precisely regulate biological pharmaceutical properties of life science molecules. However, only electrochemical mono‐methylation amines has been achieved via C‒N coupling CO2 accompanied by an unsatisfactory Faraday efficiency (FE) lower than 10%. Herein, we developed programmable electrocatalytic two controllable one methyl group. Both experimental...

Solar-driven production of hydrogen peroxide (H2 O2 ), as an important industrial chemical oxidant with extensive range applications, from oxygen reduction is a sustainable alternative to mainstream anthraquinone oxidation and direct hydrogenation dioxygen methods. The efficiency solar over semiconductor-based photocatalysts still largely limited by the narrow light absorption visible light. Here, authors proposed demonstrate proof-of-concept application light-generated hot electrons in...

Abstract Doping the host materials with either electron‐rich heteroatoms or electron‐deficient have been applied as a straightforward and main‐stream method to modify electronic structures boost electrochemical activity for various reactions, including nitrogen reduction reactions (NRR). As third type of dopants, isoelectric (exemplified Si atoms in carbon framework this work) designed highly efficient active centers NRR. same group element different size electronegativity support,...

Open AccessCCS ChemistryCOMMUNICATION7 Nov 2022Accelerating the Activation of NOx− on Ru Nanoparticles for Ammonia Production by Tuning Their Electron Deficiency Guang-Yao Zhai, Qi-Yuan Li, Shi-Nan Zhang, Dong Xu, Si-Yuan Xia, Peng Gao, Xiu Lin, Yun-Xiao Jin-Huan Cheng, Wei-Yao Hu, Lu-Han Sun, Xin-Hao Li and Jie-Sheng Chen Zhai School Chemistry Chemical Engineering, Frontiers Science Center Transformative Molecules, Shanghai Jiao Tong University, 200240 , Zhang Xu Xia Gao Lin Cheng...

Selective electrocatalytic transformation of alcohols to aldehydes offers an efficient and environmentally friendly platform for the simultaneous production fine chemicals pure hydrogen gas. However, traditional alcohol oxidation reactions (AORs) in aqueous electrolyte unavoidably face competitive (e.g., water overoxidations reactions) presence active oxygen species from oxidation, causing unwanted decrease final efficiency selectivity. Here, we developed integrated all-solid proton...

Open AccessCCS ChemistryCOMMUNICATION7 Nov 2022A Polyimide-Based Photocatalyst for Continuous Hydrogen Peroxide Production Using Air and Water under Solar Light Yun-Xiao Lin, Hua-Yi Kuang, Shi-Nan Zhang, Xiao-Le Guang-Yao Zhai, Xiu Dong Xu, Jinping Jia, Xin-Hao Li Jie-Sheng Chen Lin School of Chemistry Chemical Engineering, Shanghai Jiao Tong University, 200240 , Kuang Zhang Zhai Xu Jia Environmental Science *Corresponding author: E-mail Address: [email protected]...

Polymeric Schiff bases with a low and tunable redox voltage are regarded as promising anode materials for sodium-ion batteries (SIBs). Herein, polymeric benzene (PSB-1) thiophene rings (PSB-2) were designed prepared electrode SIBs. Compared PSB-1, the introduction of to base PSB-2 enhances electron delocalization, structural stability, intrinsic conductivity, contributing excellent electrochemical performance. After discharging/charging 200 cycles at 50 mA g–1, high specific charge capacity...

Autoxidation of sulfur atoms in polythiophene boosts both its activity and stability for the oxygen evolution reaction.

Abstract NO x − reduction acts a pivotal part in sustaining globally balanced nitrogen cycle and restoring ecological environment, ammonia (NH 3 ) is an excellent energy carrier the most valuable product among all products of reaction, selectivity which far from satisfaction due to intrinsic complexity multiple‐electron ‐to‐NH process. Here, we utilize Schottky barrier‐induced surface electric field, by construction high density electron‐deficient Ni nanoparticles inside nitrogen‐rich...