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Biomass-derived acid-resistant Co@NC is used as a bifunctional catalyst for biomass-derived FA dehydrogenation and biomass-derived vanillin hydrodeoxygenation.

Gold and gold-based bimetallic catalysts for acetylene hydrochlorination were prepared with HAuCl 4 •4H 2 O and NiCl 2 •6H 2 O as precursors, and were analyzed with BET, TG, XRD, TEM, TPR, and XPS. The Au1Ni3/CSs catalyst shows both high activity and good stability, with a C 2 H 2 conversion of 95.4% after 46 h under a gas hourly space velocity (GHSV) of C 2 H 2 of 900 h −1 . The results indicate that the addition of nickel to gold can inhibit the reduction of catalytically active Au 3+ to Au 0 and oxidize Au 0 to Au + during the preparation of Au-based/CSs catalysts, and weaken the occurrence of coke deposition on the catalyst surface, thus improving the stability of the catalyst.

Advances in microelectronics have led to the development of on-chip intelligent microsystems that can digitalize the physical world, offering functions of sensing, data communication, and intelligent response to stimuli. Either mismatched form factors or limited energy density of available batteries compromises their integration. We report a microimprint fabrication for on-chip Zn−air microbatteries, which bypasses the complication of the catalyst incorporation on the chip at a target position. The on-chip integration of a bifunctional catalyst covalent organic framework with cobalt catalytic unitsenables the onchip Zn−air microbattery to outperform the Zn−air primary cell, showing 3 times more volumetric energy density. It is wirelessly chargeable, and its lifetime capacity is around twice longer than that for commercially available on-chip lithium ion microbatteries. The on-chip Zn−air microbattery can drive various electronic systems. Our approach bridges a long-standing gulf between advanced materials synthesis and their on-chip integration and paves the way toward high-performance on-chip Zn−air batteries.

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