Salt-assisted synthesis of transition metal-based catalysts: Basic principles, recent progress in the synthetic strategy and multifunctional applications DOI

Chengxu Jin,

Dongxu Wang, Aiping Wu

et al.

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 538, P. 216725 - 216725

Published: April 21, 2025

Language: Английский

Green preparation of fiberboard waste derived N–doped carbon catalysts with tailored properties for efficient hydrogenation reduction of nitroaromatics DOI Creative Commons
Tao Ding, Wen Xu, Jie Zhang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 489, P. 151197 - 151197

Published: April 14, 2024

Biomass–derived carbon materials doped with diverse heteroatoms have demonstrated huge potentials for environment and energy applications, thanks to the availability, preferable porous channel structures, excellent conductivity stability. In this work, fiberboard waste containing resin–based adhesive was selected green fabrication of N–doped catalysts without using extra N–sources. A facile two–step calcination strategy sequential carbonization activation proposed generation exposure indispensable active sites, realizing controllable regulation textural morphological characteristics. The resulting derived (NFC) samples possessed unique hierarchically structures a significantly enlarged surface area, plentiful activity–dependent N species (e.g., graphitic pyridinic N), as well suitable graphitization degree hydrophilicity. As result, favorable adsorption procedure an enhanced accessibility sites synergistically boosted catalytic performance towards hydrogenation reduction nitroaromatics. Taking NFC–hh sample paradigm, 4–nitrophenol (4–NP) reduction, achieving high apparent rate constant 0.40 min−1 impressive turnover frequency ∼0.20 mmol g−1 min−1. Besides, continuous–flowing test exhibited conversion efficiency > 99.50% long–term stability over 100 h, showing attractive prospect industrial application. This work presents new approach value–added utilization biomass waste, provides low–cost high–active catalyst environmental remediation.

Language: Английский

Citations

7

Nanosheet-based 3-dimentional assembly with synergitic Co-Mo sites for effective electrocatalytic hydrogen evolution reaction DOI

Haixin Zhu,

Yue Liu, Aiping Wu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161490 - 161490

Published: March 1, 2025

Language: Английский

Citations

1

Ultrafine Co-MoC particles in porous carbon derived from polyoxometalate-based metal organic framework for efficient hydrogen evolution reaction DOI

Changle Yue,

Wenjing Bao,

Yang Liu

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 667, P. 184 - 191

Published: April 13, 2024

Language: Английский

Citations

5

Facile Synthesis of Natural Kaolin-Based CuO Catalyst: An Efficient Heterogeneous Catalyst for the Catalytic Reduction of 4-Nitrophenol DOI Creative Commons
Zinabu Gashaw Asmare, Belete Asefa Aragaw, Minaleshewa Atlabachew

et al.

ACS Omega, Journal Year: 2024, Volume and Issue: 9(49), P. 48014 - 48031

Published: Nov. 21, 2024

Water contamination by nitro compounds from various industrial processes has significantly contributed to environmental pollution and severely threatened aquatic ecosystems. Inexpensive, efficient, environmentally benign catalysts are required for the catalytic reduction of such compounds. This study reports fabrication nanocomposites (NCs) copper oxide nanoparticles (CuO NPs) supported on a kaolin sheet using straightforward simple one-pot synthesis procedures that control metal precursor ratios. The selected as-synthesized CuO/kaolin NC was characterized range advanced spectroscopic microscopic methods, as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), ultraviolet–visible (UV–vis) spectroscopy, field emission scanning electron microscopy (FE-SEM), transmission (TEM), energy dispersive (EDX), high-angle annular dark-field TEM (HAADF-STEM), N2 adsorption/desorption analysis. characterization results confirmed successful incorporation CuO NPs into sheets, which had an average size about 18.7 nm. fabricated used heterogeneous catalyst efficient 4-nitrophenol (4-NP) 4-aminophenol (4-AP) in presence sodium borohydride (NaBH4) aqueous system at room temperature. demonstrated superior performance with high 4-NP conversion 4-AP (>99%) phase (50 mL, 20 mg L–1) within 6 min. In addition, reaction kinetics also investigated, followed pseudo-first-order equation apparent rate constant 1.76 min–1. Furthermore, Arrhenius Eyring parameters hydrogenation were calculated order investigate process more detail. Moreover, exhibited excellent reusability stability over seven repeated test cycles without any noticeable decline activity. Therefore, this paper could provide novel, promising clay-based non-noble nanocatalyst reduce system.

Language: Английский

Citations

4

The Influence of Electron Beam Irradiation on the Performance of Hydrogenation Catalysts Containing Co and Carboneous Particles on Silica DOI Creative Commons

Mykola I. Arabadzhy,

Volodymyr Pashkevych, Olena O. Pariiska

et al.

Chemistry, Journal Year: 2025, Volume and Issue: 7(1), P. 26 - 26

Published: Feb. 19, 2025

This study was aimed at elucidating the role of carboneous component in Co–carbon-containing catalysts for hydrogenation organic compounds. A Co-C/SiO2 catalyst synthesized via pyrolysis a Co(II) complex with 1,2-diaminobenzene on silica and subsequently irradiated 2.3 MeV electrons, producing Co-C/SiO2*. comprehensive characterization using XRD, TEM, IR, Raman spectroscopy indicated minimal structural changes cobalt nanoparticles materials. However, analysis revealed slight decrease defect content upon irradiation, which could occur due to healing. The catalytic tests, including 26 compounds, demonstrated an enhanced performance 17 cases. improvement attributed modification material. It be concluded that components Co-C composites contributed their performance, probably by modifying electronic structure Co nanoparticles. In turn, results provide arguments against supposition occurs defects

Language: Английский

Citations

0

Salt-assisted synthesis of transition metal-based catalysts: Basic principles, recent progress in the synthetic strategy and multifunctional applications DOI

Chengxu Jin,

Dongxu Wang, Aiping Wu

et al.

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 538, P. 216725 - 216725

Published: April 21, 2025

Language: Английский

Citations

0