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The development of highly efficient and ultrastable electrocatalysts for hydrogen generation from water/real seawater faces huge challenges. Herein, porous carbon-supported amorphous RuPt nanoclusters (Ru5.67Pt/PC) achieve mass activities of 42.28/10.93 A mgPt−1 and ultralong cycling stability in alkaline water/seawater because of the unique cluster structure and atomic Ru–Pt dual sites. [ABSTRACT FROM AUTHOR]

Engineering effective bifunctional electrocatalysts that outperform the benchmark Pt/C for direct methanol proton exchange membrane fuel cells is desired and challenging. Here, we designed H-PtCu/PtL OH catalysts with a sub-nanometer Pt(111) shell layer featuring Cu- and Co-vacancies, which exhibited high activity in acidic oxygen reduction and methanol oxidation reactions. [ABSTRACT FROM AUTHOR]

Metallene is receiving continuous attention because of its unique properties in electrocatalysis. Herein, we report a new class of three-dimensional (3D) Cr-doped Pd metallene nanoribbon (PdCr MNR) assembly. The 3D PdCr MNR was about 4 or 5 atomic layers thick with high-density low-coordinated Pd sites and abundant defects. The 3D PdCr MNR/C exhibited significantly enhanced oxygen reduction reaction and formic acid oxidation reaction compared with the commercial Pt/C and Pd/C and long-term durability. This work introduces a new member in the class of the metallene family, and this novel material is a promising bifunctional electrocatalyst for practical direct methanol/formic acid fuel cell devices. [ABSTRACT FROM AUTHOR]

A fluorescent turn-on probe for H2S was exploited based on a H2S-induced substitution–cyclization cascade reaction towards the bis-electrophilic centers of a new H2S trap group 2-(iodomethyl)benzoate. [ABSTRACT FROM AUTHOR]

A coumarin-hemicyanine dye 1 was reported for ratiometric fluorescent detection of SO2 derivatives HSO3- and SO32- based on a novel addition-rearrangement cascade reaction. [ABSTRACT FROM AUTHOR]

A coumarin−hemicyanine dye 1 was reported for ratiometric fluorescent detection of SO2 derivatives HSO3− and SO32− based on a novel addition-rearrangement cascade reaction. [ABSTRACT FROM AUTHOR]

High-selectivity, uniform three-dimensional (3D) flower-like bismuth telluride (Bi2Te3) nanocrystals consisting of few-quintuple-layer nanoplatelets with a thickness down to 4.5 nm were synthesized for the first time by a facile, one-pot polyol method with acetic acid as the structure-director. Micrometre-sized 2D films and honeycomb-like spheres can be obtained using the uniform 3D Bi2Te3nanocrystals as building blocks. [ABSTRACT FROM AUTHOR]

A coumarin-based thiol probe featuring the 1,4-addition reaction of thiols to nitroolefin was reported. The molecular probe exhibited higher selectivity toward biothiols (Cys, Hcy and GSH) than other amino acids. [ABSTRACT FROM AUTHOR]

A mitochondria-targetable fluorescence probe, methyl(4-hydroxyphenyl)amino-substituted pyronin (1), was exploited, which could highly selectively sense peroxynitrite (ONOO−) within seconds. [ABSTRACT FROM AUTHOR]

A Pt nanoparticle netlike-assembly (Pt-NNA) synthesized through a facile hydrothermal method, with high specific surface area and large overall size, exhibits much higher durability and 2.9 times higher mass activity for oxygen reduction reaction than commercial Pt black catalyst. [ABSTRACT FROM AUTHOR]

Novel anisotropic hybrid particles with various morphologies have been synthesized by radiation miniemulsion polymerization for the first time. [ABSTRACT FROM AUTHOR]

A new efficient and highly enantioselective direct asymmetric hydro-genation of α-keto acids employing the Ir/SpiroPAP catalyst under mild reaction conditions has been developed. This method might be feasible for the preparation of a series of chiral α-hydroxy acids on a large scale. [ABSTRACT FROM AUTHOR]

A new ratiometric fluorescent cyanide probe was developed based on the nucleophilic attack of CN−toward the indolium group of a hybrid coumarin–hemicyanine dye, by which high selectivity as well as large emission shift could be achieved. [ABSTRACT FROM AUTHOR]