An overview on copper in industrial chemistry: From ancient pigment to modern catalysis

Coordination Chemistry Reviews, Год журнала: 2025, Номер 529, С. 216438 - 216438

Опубликована: Янв. 17, 2025

Язык: Английский

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Recent Advances and Perspectives on Coupled Water Electrolysis for Energy‐Saving Hydrogen Production

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 7, 2025

Abstract Overall water splitting (OWS) to produce hydrogen has attracted large attention in recent years due its ecological‐friendliness and sustainability. However, the efficiency of OWS been forced by sluggish kinetics four‐electron oxygen evolution reaction (OER). The replacement OER alternative electrooxidation small molecules with more thermodynamically favorable potentials may fundamentally break limitation achieve production low energy consumption, which also be accompanied value‐added chemicals than or electrochemical degradation pollutants. This review critically assesses latest discoveries coupled various OWS, including alcohols, aldehydes, amides, urea, hydrazine, etc. Emphasis is placed on corresponding electrocatalyst design related mechanisms (e.g., dual hydrogenation N–N bond breaking hydrazine C═N regulation urea inhibit hazardous NCO − NO productions, etc.), along emerging reactions (electrooxidation tetrazoles, furazans, iodide, quinolines, ascorbic acid, sterol, trimethylamine, etc.). Some new decoupled electrolysis self‐powered systems are discussed detail. Finally, potential challenges prospects highlighted aid future research directions.

Язык: Английский

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A promising perovskite primary explosive

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Ноя. 27, 2023

A primary explosive is an ideal chemical substance for performing ignition in military and commercial applications. For over 150 years, nearly all of the developed explosives have suffered from various issues, such as troublesome syntheses, high toxicity, poor stability or/and weak performance. Now we report interesting example a with double perovskite framework, {(C6H14N2)2[Na(NH4)(IO4)6]}n (DPPE-1), which was synthesized using simple green one-pot method aqueous solution at room temperature. DPPE-1 free heavy metals, toxic organic components, doesn't involve any precursors. It exhibits good towards air, moisture, sunlight, heat has acceptable mechanical sensitivities. affords performance on par most powerful reported to date. promises meet challenges existing current explosives, this work could trigger more extensive applications perovskite.

Язык: Английский

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Energetic bimetallic complexes as catalysts affect the thermal decomposition of ammonium perchlorate

Dalton Transactions, Год журнала: 2022, Номер 51(25), С. 9894 - 9904

Опубликована: Янв. 1, 2022

Two bimetallic complexes of 4-hydroxy-3,5-dinitropyrazole, [K2Mn(DNPO)2(H2O)4]n·2H2O (BMEP-1) and [K2Zn(DNPO)2(H2O)6]n (BMEP-2), were synthesized characterized by IR spectroscopy elemental analysis. The crystal structures BMEP-1 BMEP-2 determined single-crystal X-ray diffraction. It is noteworthy that these presented different metal-organic frameworks. thermal behaviors investigated differential scanning calorimetry thermogravimetric analysis measurements. These exhibited high stability (348.0 °C 331.0 °C) due to their large coordination bonds three-dimensional interconnected structure. catalytic performances on the decomposition ammonium perchlorate TGA-DSC, TGA-FTIR, non-isothermal kinetic analyses. results showed excellent performance in perchlorate. Notably, there was only a single exothermic peak at 302.6 318.6 °C, activation energy values decreased 123.88 kJ mol-1 128.43 mol-1, respectively. TGA-FTIR BMEP-2, as effective components catalysis, will promote production H2O, N2O, NO2, HCl advance, during are expected be two candidate additives for composite solid propellants.

Язык: Английский

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Sensitive structural motifs separately distributed in azide-based 3D EMOFs: a primary explosive with an excellent initiation ability and enhanced stability

Inorganic Chemistry Frontiers, Год журнала: 2022, Номер 9(22), С. 5884 - 5892

Опубликована: Янв. 1, 2022

The unique type of molecular architectures with a remarkable initiation ability and enhanced stability is proposed. relationship between the structure sensitivity Cu(N 3 ) 2 -based primary explosive revealed.

Язык: Английский

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Self-assembly preparation of advanced metastable MCo2O4/GO/Al (M=Cu, Mg, Zn, Ni) nanothermites to realize large heat release, stable combustion and high safety

Ceramics International, Год журнала: 2022, Номер 48(14), С. 20825 - 20837

Опубликована: Апрель 15, 2022

Язык: Английский

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Copper Azide-based Complexes without Repulsive Steric Clashes between Azides for Advanced Primary Explosives

Chemical Engineering Journal, Год журнала: 2023, Номер 472, С. 144982 - 144982

Опубликована: Июль 22, 2023

Язык: Английский

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Periodate‐Based Perovskite Energetic Materials: A Strategy for High‐Energy Primary Explosives

Small, Год журнала: 2023, Номер 19(42)

Опубликована: Июнь 17, 2023

The requirements for high energy and green primary explosives are more stringent because of the rising demand in application micro initiation explosive devices. Four new energetic compounds with powerful ability reported their performances experimentally proven as designed, including non-perovskites ([H2 DABCO](H4 IO6 )2 ·2H2 O, named TDPI-0) perovskitoid materials (PEMs) DABCO][M(IO4 )3 ]; DABCO=1,4-Diazabicyclo[2.2.2]octane, M=Na+ , K+ NH4+ TDPI-1, -2, -4, respectively). tolerance factor is first introduced to guide design (PEMs). In conjunction [H2 DABCO](ClO4 ·H2 O (DAP-0) DABCO][M(ClO4 ] (M=Na+ DAP-1, -4), physiochemical properties two series investigated between PEMs (TDPI-0 DAP-0). experimental results show that have great advantages improving thermal stability, detonation performance, capability, regulating sensitivity. influence X-site replacement illustrated by hard-soft-acid-base (HSAB) theory. Especially, TDPIs possess much stronger capability than DAPs, which indicates periodate salts favor deflagration-to-detonation transition. Therefore, provide a simple feasible method designing advanced adjustable properties.

Язык: Английский

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A three-dimensional energetic coordination compound (BLG-1) with excellent initiating ability for lead-free primary explosives

Materials Horizons, Год журнала: 2023, Номер 10(12), С. 5775 - 5781

Опубликована: Янв. 1, 2023

Exploration of advanced lead-free primary explosives is a challenging issue in the field energetic materials. Herein, we designed and synthesized novel N-rich copper bromate coordination compound (ECC) [Cu(ATRZ)(BrO3)2]n (BLG-1, ATRZ: 4,4'-azo-1,2,4-triazole) by simple one-step reaction. BLG-1 first reported three-dimensional (3D) ECC. Its interesting 3D reticular architecture contributed to its highest thermal decomposition temperature (Td: 226 °C) crystal density (ρ: 2.69 g cm-3) among ECCs. More importantly, charge as little 3 mg could reliably detonate compressed RDX, 1 CL-20. These incredible values indicated that had an ultra-powerful initiating ability far superior previously explosives. improved mechanical sensitivities (IS: 13 J; FS: N) electrostatic sensitivity (EDS: 240 mJ) compared with those typical lead-based explosive, lead azide 4J; 0.75N; EDS: 5 mJ). In particular, low laser-initiation threshold mJ at 808 nm, suggesting it serve laser-ignitable explosive. This work suggests promising candidate engreat practical application prospects for

Язык: Английский

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High dispersity and ultralight PVP-mediated Al/MFe2O4/g-C3N4 (M = Cu, Mg, Ni) nanothermites synthesized by a novel sol-freeze-drying technology

Advanced Powder Technology, Год журнала: 2023, Номер 34(3), С. 103976 - 103976

Опубликована: Фев. 16, 2023

Язык: Английский

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