Selenium-Deficient FeSe/FeO Electrocatalyst for Nitrate Reduction to Ammonia.

Electrocatalytic reduction of NO is a green and sustainable method that not only helps to treat industrial pollutants in wastewater, but also produces valuable chemicals. However, the slow dynamics of the proton-coupled electron transfer process results in a high barrier and low conversion efficiency. In this work, the Se-deficient FeSe/FeO heterojunction was synthesized, which showed excellent electrochemical performance in 0.

Research progress of dual-atom site catalysts for photocatalysis.

Dual-atom site catalysts (DASCs) have sparked considerable interest in heterogeneous photocatalysis as they possess the advantages of excellent photoelectronic activity, photostability, and high carrier separation efficiency and mobility. The DASCs involved in these important photocatalytic processes, especially in the photocatalytic hydrogen evolution reaction (HER), CO reduction reaction (CORR), N/nitrate reduction, ., have been extensively investigated in the past few years.

Construction of amorphous/crystalline Fe doped CoSe for effective electrocatalytic oxygen evolution.

Herein, amorphous/crystalline Fe-doped CoSe was synthesized (Fe-CoSe/NF), and it exhibited high oxygen evolution reaction (OER) performance. The synergistic effect of the Fe dopant and the amorphous/crystalline structure is conducive to the formation of high valence Co and Fe active sites. Fe-CoSe/NF shows low overpotentials of 269 mV@50 mA cm and 280 mV@100 mA cm.

Recent Progress of Transition Metal Selenides for Electrochemical Oxygen Reduction to Hydrogen Peroxide: From Catalyst Design to Electrolyzers Application.

Hydrogen peroxide (HO) is a highly value-added and environmental-friendly chemical with various applications. The production of HO by electrocatalytic 2e oxygen reduction reaction (ORR) has emerged as a promising alternative to the energy-intensive anthraquinone process. High selectivity Catalysts combining with superior activity are critical for the efficient electrosynthesis of HO.

Ultrathin MgB nanosheet-modified polypropylene separator for high-efficiency lithium-sulfur batteries.

The separator is an important component in lithium-sulfur (Li-S) batteries. However, the conventional polypropylene (PP) separators have the problem of easy shuttling of lithium polysulfide (LiPSs). Herein, ultrathin magnesium boride (MgB) nanosheets were prepared by ultrasonic-assisted exfoliation technology, and were suction-filtered onto a separator to serve as a separator modification layer.

Rapid Ring-Opening Polymerization of γ-Butyrolactone toward High-Molecular-Weight Poly (γ-butyrolactone) by an Organophosphazene Base and Bisurea Binary Catalyst.

The low temperature condition, long reaction time and associated high energy inputs involved in the polymerization process still hampered the scalable production of poly(γ-butyrolactone) (PγBL) via ring-opening polymerization (ROP) of low strained γBL due to its unfavorable thermodynamics. In this contribution, we presented the rapid ROP of γBL using a bisurea in combination with an organophosphazene base as the binary catalyst. Well-defined PγBL samples with various terminal groups were prepared by using different alcohol initiators.

Recent Advances in Transition-Metal-Catalyzed C-H Functionalization of Ferrocene Amides.

During the past decades, in synthetic organic chemistry, directing-group-assisted C-H functionalization is found to be a key tool for the expedient and site-selective construction of C-C and hybrid bonds. Among C-H functionalization of ferrocene derivatives, the directed group strategy is undoubtedly the most commonly used method. Compared to the other directing groups, ferrocene amides can be synthesized easily and are now recognized as one of the most efficient tools for the selective functionalization of certain positions because its metal centre permits fine, tuneable and reversible coordination.