Highly Efficient Electrosynthesis of Urea from CO and Nitrate by a Metal-Organic Framework with Dual Active Sites.

Electrosynthesis of urea from CO and NO is a sustainable alternative to energy-intensive industrial processes. The main challenge hindering the progress of this technology lies in the development of advanced electrocatalysts that efficiently utilize abundant, low-cost CO and nitrogen sources to yield urea with both high Faradaic efficiency (FE) and current density. In this work, we designed and prepared a new two-dimensional metal-organic framework (MOF), namely PcNi-Fe-O, constructed by nickel-phthalocyanine (NiPc) ligands and square-planar FeO nodes, as the electrocatalyst for urea electrosynthesis.

Single-Product Faradaic Efficiency for Electrocatalytic of CO to CO at Current Density Larger than 1.2 A cm in Neutral Aqueous Solution by a Single-Atom Nanozyme.

Electroreduction of CO to CO is a promising approach for the cycling use of CO , while it still suffers from impractical current density and durability. Here we report a single-atom nanozyme (Ni-N -C) that achieves industrial-scale performance for CO -to-CO conversion with a Faradaic efficiency (FE) exceeded 97 % over -0.8--2.

A Stable and Conductive Covalent Organic Framework with Isolated Active Sites for Highly Selective Electroreduction of Carbon Dioxide to Acetate.

Electroreduction of CO to acetate provides a promising strategy to reduce CO emissions and store renewable energy, but acetate is usually a by-product. Here, we show a stable and conductive two-dimensional phthalocyanine-based covalent-organic framework (COF) as an electrocatalyst for reduction of CO to acetate with a single-product Faradaic efficiency (FE) of 90.3(2)% at -0.

Highly Selective CO Electroreduction to CH Using a Metal-Organic Framework with Dual Active Sites.

Conversion from CO to CH is important for the development of energy and the environment, but the high energy barrier of hydrogenation of the *CO intermediate and C-C coupling step tend to result in C compounds as the main product and thus restrict the generation of CH. Here, we report a metal-organic framework (denoted as ), composed of 2,3,9,10,16,17,23,24-octahydroxyphthalo-cyaninato)copper(II) (PcCu-(OH)) ligands and the square-planar CuO nodes, as the electrocatalyst for CO to CH. Compared with the discrete molecular copper-phthalocyanine (Faradaic efficiency (FE) of CH = 25%), exhibits much higher performance for electrocatalytic reduction of CO to CH with a FE of 50(1)% and a current density of 7.

An effective snakebite first aid training method for medics in the Chinese troops: a RCT.

Background: Snakebites can lead to lifelong consequences and is one of the main causes of death among military troops worldwide. However, few Chinese military medics know the proper first aid procedures for snakebites. Therefore, this study aimed to explore the impact of the Standard Operation Procedure (SOP) and checklist on Chinese military medics' ability to manage snakebite first aid.

A systematic study of the genus Atlanticus Scudder, 1894 from Zhejiang, China (Orthoptera: Tettigoniidae: Tettigoniinae).

Six species of genus Atlanticus have been recorded from Zhejiang, China prior to this study. We describe 2 new species, A. fallax sp.

[Prokaryotic expression of trigeminy artificial fusion gene of Leptospira interrogans and the immunogenicity of its products].

Objective: To construct lipL32/1-lipL21-OmpL1/2 fusion gene of Leptospira interrogans and its prokaryotic expression system, and to identify the immunogenicity of its products.

Methods: PCR using linking primers was applied to construct lipL32/1-lipL21-OmpL1/2 fusion gene and a prokaryotic expression system of the fusion gene was then established using routine genetic engineering technique. SDS-PAGE was used to examine output of the target recombinant protein rLipL32/1-LipL21-OmpL1/2.

[Establishment and application of ELISAs based on rLipL32/1-LipL21-OmpL1/2 fusion antigen of Leptospira interrogans].

Objective: To establish ELISAs based on rLipL32/1-LipL21-OmpL1/2 fusion antigen of Leptospira interrogans for detecting specific IgG and IgM in serum of patients with leptospirosis.

Methods: Microscope agglutination test(MAT) was performed to detect serum specimens from leptospirosis patients and to determine titers of rabbbit antiserum agaist rLipL32/1-LipL21-OmpL1/2 to reference standard strains of L. interrogans.