Preparation of High-Energy ECPs by Retaining the Coordination Ability of Carbohydrazide Groups DOI
Tingwei Wang, Chao Zhang, Zujia Lu

et al.

Langmuir, Journal Year: 2023, Volume and Issue: 39(26), P. 9239 - 9245

Published: June 25, 2023

In order to preserve the coordinating ability of hydrazide group, we used retrosynthetic analysis design and synthesize ligand furan-2,5-dicarbohydrazide its complex [Cu(FDCA)(H2O)ClO4]n(ClO4)n·nH2O (ECPs-1·H2O). The structure product was confirmed by single-crystal X-ray diffraction, infrared spectroscopy, elemental analysis. solvent-free target material ECPs-1 exhibited good thermal stability, sensitivity mechanical stimuli, excellent explosive properties. Furthermore, it had potential for laser ignition comparable detonation power LA. simple preparation method inexpensive starting materials enriched research on primary explosives.

Language: Английский

Bimetallic Sulfides with Vacancy Modulation Exhibit Enhanced Electrochemical Performance DOI
Jiawei Guo, Hongbo Zhao, Zhongwei Yang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(28)

Published: March 10, 2024

Abstract Transition bimetallic sulfides show significant promise for energy‐related applications because of their plentiful active sites and synergistic redox activity. However, limited pore size low‐conductivity issues hinder application. The structure NiCo–S with rich sulfur vacancies is first predicted by density functional theory (DFT) calculations. Different vacancy concentrations are modeled DFT calculations, the results confirm that enhance conductivity electrode material more beneficial adsorption OH * species. It verified differential charge electric field formed on surface can lead to strong interfacial interactions electron aggregation, which promotes electron/ion transfer kinetics. Furthermore, nanosheets prepared carbon cloth enriched different (denoted as NiCo‐Sv‐x, x representing concentration vacancies) sulfide etching NiCo‐MOF annealing under H 2 /Ar atmosphere. NiCo‐Sv‐x electrodes obtained applied cathode supercapacitors anode oxygen evolution reaction. Through combining experimental theoretical analysis, effect defect engineering electrochemical performance materials further confirmed.

Language: Английский

Citations

44
Metal-organic frameworks-promoted detection of hazardous chemicals for anti-terrorism application DOI
Meng Zhang,

Ming-Yuan Feng,

Xiang Li

et al.

TrAC Trends in Analytical Chemistry, Journal Year: 2024, Volume and Issue: 172, P. 117558 - 117558

Published: Feb. 1, 2024

Language: Английский

Citations

7
Structure‐Induced Energetic Coordination Compounds as Additives for Laser Initiation Primary Explosives DOI

Meng Cui,

Yun‐Fan Yan,

Rui‐Xuan Qian

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 9, 2024

Laser ignition of primary explosives presents more reliable alternative to traditional electrical initiation methods. However, the commercial initiator lead azide (LA) requires a high-power density laser detonate, with minimum energy (E

Language: Английский

Citations

3
Balancing the Trade‐Off Between Detonation Power and Safety by Spatially Anchoring Copper Azide on Nitrogen‐Doped Reduced Graphene Oxide DOI Open Access
Lei Zhang, Xuyang Wang, Li Yang

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Abstract Developing an effective tailoring approach to overcome the intrinsic trade‐off between detonation power and safety in energetic materials is crucial for micro‐electromechanical systems but remains challenging. Herein, anchoring of high‐energy‐density yet highly sensitive primary explosive copper azide (CA) onto N‐doped reduced graphene oxide (NrGO) shell (denoted as CA@NrGO) reported via electronic interactions. This simultaneously achieves a three‐fold enhancement mechanical safety, ≈36‐fold improvement electrostatic compared pure CA, high capacity. Theoretical calculations reveal that interaction NrGO CA not only facilitate energy dissipation from forces acting on CA—via intralayer compression slip, thereby enhancing safety—but also promote interfacial electron transfer NrGO, preventing charge accumulation improving safety. Furthermore, excellent CA@NrGO demonstrated micro‐detonation device, where 6 mg reliably initiated 20 secondary CL‐20. work highlights how manipulating interactions their supports contributes design safe miniaturized devices.

Language: Английский

Citations

0
In Situ Electrochemical Construction of CuN3@CuCl Hybrids for Controllable Energy Release and Self-Passivation Ability DOI
Chunpei Yu, Bonan Gu,

Minghao Bao

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(3), P. 1642 - 1651

Published: Jan. 10, 2024

Advanced energetic materials (EMs) play a crucial role in the advancement of microenergetic systems as actuation parts, igniters, propulsion units, and power. The sustainable electrosynthesis EMs has gained momentum achieved substantial improvements past decade. This study presents facile synthesis new type high-performance CuN3@CuCl hybrids via co-electrodeposition methodology utilizing porous Cu sacrificial template. composition, morphology, characteristics can be easily tuned by adjusting deposition times. resulting demonstrate remarkable energy output (1120 J·g–1) good laser-induced initiating ability. As compared with CuN3, uniform doping inert CuCl enhances electrostatic safety hybridized material without compromising its overall characteristics. Notably, special oxidizing behavior gradually lowers susceptibility hybrid to laser stimulation. significant implications for passivation or self-destruction highly sensitive EMs. Overall, this pioneers path development MEMS-compatible EMs, facilitating further applications.

Language: Английский

Citations

1
Evaluation of a novel composite of expanded polystyrene with rGO and SEBS‐g‐MA DOI

Mahrukh Fatima,

Muhammad Tahir ul Qamar, Manzar Zahra

et al.

Microscopy Research and Technique, Journal Year: 2024, Volume and Issue: 87(8), P. 1965 - 1973

Published: April 9, 2024

This study displays the effect of reduced graphene oxide (rGO) nanofiller and polystyrene-b-poly(ethylene-ran-butylene)-b-polystyrene-grafted maleic anhydride (SEBS-g-MA) on optical, thermal, mechanical features expanded polystyrene (EPS). First, thin films pristine EPS composites were prepared using solution cast method. The subjected to fourier-transform infrared (FTIR), SEM, UV-visible spectrophotometer, thermogravimetric analysis/differential scanning calorimetry, universal testing machine for structural, morphological, characterizations. Optical revealed a significant increase in refractive index absorption than EPS. Indirect band-gap energy (~4.08 eV) was ~1.61 eV rGO composite ~ 2.23 composed SEBS-g-MA. Thermal analyses presented improvement characterization temperatures such as T

Language: Английский

Citations

1
Single-crystal-to-single-crystal MOF encapsulation of copper azide to prepare laser-sensitive primary explosives DOI

Ruibing Lv,

Pengyang Pan,

Zhenghang Luo

et al.

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(23), P. 8235 - 8245

Published: Jan. 1, 2024

A novel 2D energetic MOF [Cu(ATRZ)(N 3 ) 2 ] n was prepared by single-crystal-to-single-crystal transformation to encapsulating N − , which is a new copper azide variant with excellent safety and laser initiation performance.

Language: Английский

Citations

1
Metal‐Free Hybrid Energetic Composites Based on Donor–Acceptor π‐Conjugated Organic Energetic Catalysts with Enlightening the Laser Ignition Performance of Multi‐Scale Ammonium Perchlorate DOI Open Access

Wei Du,

Pengfei Tang, Bo Yang

et al.

Small, Journal Year: 2023, Volume and Issue: 19(46)

Published: July 20, 2023

Photosensitive materials, such as energetic complexes, usually have high sensitivity and cause heavy-metal pollution, whereas others, like carbon black dye, do not contain energy, which affects energy output mechanical properties. In this work, donor-acceptor π-conjugated catalysts, denoted D-n, are designed synthesized. Nonmetallic hybrid composites prepared by assembling the as-synthesized catalysts into multiscale ammonium perchlorate (AP). Composites containing APs can be successfully ignited without involvement of metals. The new ignition mechanism is further analyzed using experimental theoretical analyses UV-vis-near-infrared (NIR) spectra, electron-spin resonance spectroscopy, energy-gap analysis. shortest delay time 56 ms under condition a NIR wavelength 1064 nm laser power 10 W. At voltage 1 kV electric field 500 V mm-1 , laser-ignition D-2/AP composite decreases from to 35 because D-2 also exhibits organic semiconductor-like D-12/AP used ignite other common materials. This study guide development advanced metal-free laser-ignitable address challenges in aerospace engineering.

Language: Английский

Citations

3
Morphological evolution mechanism of copper-based azide during gas-solid azidation process: Experiment and thermodynamic analysis DOI
Jie Ren, Jiabao Wang, Weijing Zhang

et al.

Vacuum, Journal Year: 2023, Volume and Issue: 217, P. 112564 - 112564

Published: Sept. 1, 2023

Language: Английский

Citations

1
Morphological Evolution Mechanism of Copper-Based Azide During Gas-Solid Azidation Process: Experiment and Thermodynamic Analysis DOI
Jie Ren, Jiabao Wang, Weijing Zhang

et al.

Published: Jan. 1, 2023

Copper-based azide (CA) in-situ synthesized through gas-solid azidation and utilized as preferred material for miniaturized explosive systems has attracted extensive attention from researchers. This work aims to reveal the morphological evolution mechanism of Ca during processes. The processes CA under different reaction conditions were observed corresponding stages divided by characteristics product morphology. morphology islands possesses a significant impact on final To further mechanism, continuous layer core-shell thermodynamic equilibrium models derived studied explain experimental findings. energy properties Cu(111), CuN3(220), Cu(N3)2(110) surfaces interfaces first principle calculation perform analysis. Based results, thermodynamics analysis Cu-CuN3, Cu-Cu(N3)2 CuN3-Cu(N3)2 performed dependence was discussed. modes into thermodynamic-dominated kinetic-dominated based orders generation results proposed modes, which provides fundamental perspective regulate enhance performance.

Language: Английский

Citations

0