Magnetic Hollowed CoFe Alloy@C Prism Catalyst for N-Alkylation of Alcohols and Amines DOI
Xin Zhuo,

Jianyao Kou,

Chun Li

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: 64(10), P. 4784 - 4790

Published: March 5, 2025

A novel magnetic hollowed CoFe@C-650 prism catalyst has been successfully prepared and applied in the N-alkylation of alcohols amines through a hydrogen borrowing strategy. The demonstrates good to excellent activities reaction with broad substrate scope afford up 99% yield target products. preliminary mechanistic study reveals that high valent Co species may promote adsorption conversion alcohols, while Fe assists hydrogenating imine intermediates.

Language: Английский

Biphasic Nanoalloys‐Based Trifunctional Monolith for High‐Performance Flexible Zn‐Air Batteries and Self‐Driven Water Splitting DOI

Xuhuan Yang,

Haoning Mao,

Zining Zhou

et al.

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

Published: March 30, 2024

Abstract Sufficient integration of multiple active moieties and correlated heterostructure engineering are pivotal to optimize the reaction kinetics intrinsic activities heterogeneous electrocatalysts. Herein, an integrated biphasic nanoalloys constructed, encasing in situ grown interlaced nitrogen‐doped carbon nanoflake arrays (CoFe‐NiFe/NC). Well‐designed CoFe‐NiFe/NC owns more accessible sites interfacial conjugation effects, jointly accelerating electron transfer mass transport for multifunctional electrocatalysis. Such unconventional monolith delivers extraordinary trifunctional hydrogen evolution reaction, oxygen (overpotential 185 mV at 10 mA cm −2 ) reduction reaction. The superior trifunctionality is rationalized with experimental theoretical elucidation. Results reveal that modulated electronic synergism between Ni, Fe‐assisted Co adjacent N‐bridged matrix decisively favors appropriate binding intermediates promoted redox kinetics. Consequently, stand‐alone cathode contributes high‐performance aqueous/flexible zinc‐air batteries (ZABs), exhibiting high power/specific energy excellent cycling stability. Remarkably, CoFe‐NiFe/NC‐based alkaline water electrolyzer requires merely 1.51 V reach , a self‐driven splitting system yields H 2 rate. This unique would open up opportunities developing high‐efficiency catalysts advanced utilization devices.

Language: Английский

Citations

9

Highly compressible composite aerogel elastomers aided by FeCoNi alloys and carbon nanotubes for electromagnetic wave absorption and piezoresistive sensing DOI

Luyao Ding,

Quanxin Liu, Tianyi Hang

et al.

Composites Part A Applied Science and Manufacturing, Journal Year: 2025, Volume and Issue: unknown, P. 108755 - 108755

Published: Jan. 1, 2025

Language: Английский

Citations

1

Inverse Oxide/Alloy‐Structured Nanozymes with NIR‐Triggered Enzymatic Cascade Regulation of ROS Homeostasis for Efficient Wound Healing DOI Open Access

Yongsen Zhao,

Shiqi Zhao, Yu Du

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 25, 2025

The precise spatiotemporal control of reactive oxygen species (ROS) generation and scavenging remains pivotal for infected wound healing. However, conventional nanozymes fail to adaptively regulate ROS dynamics across inflammatory proliferative phases. A near-infrared (NIR)-activated inverse oxide/alloy-structured nanozyme (Co7Fe3/ZnO@C) is developed, featuring enzymatic cascade activities tune homeostasis through synergistic chemodynamic (CDT), photodynamic (PDT), photothermal (PTT) therapies. orchestrates a self-regulated cascade: peroxidase (POD)-like activity initially generates bactericidal hydroxyl radicals in acidic wounds, while subsequent NIR triggers hot electron transfer from Co7Fe3 ZnO, facilitating synchronized superoxide dismutase (SOD)-like, catalase (CAT)-like radical antioxidant capacity (HORAC) scavenge residual ROS. This cascaded network dynamically balances production (POD) (NIR-driven SOD/CAT/HORAC), eradicating bacteria resolving inflammation. In vitro/vivo studies have shown that the proposed method maintaining can markedly enhance rate healing by regulation environment within injured tissue facilitation rapid re-epithelialization. work provides an intelligent platform simulates function natural enzymes constructs reaction strategy balance antibacterial anti-inflammatory demands microenvironment.

Language: Английский

Citations

1

Carbon nanotube-encapsulated Co/Co3Fe7 heterojunctions as a highly-efficient bifunctional electrocatalyst for rechargeable zinc-air batteries DOI
Xiaofeng Liu,

Sichen Huo,

XU Xiao-qin

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 666, P. 296 - 306

Published: April 6, 2024

Language: Английский

Citations

7

Controllable Phase Separation Engineering of Iron–Cobalt Alloy Heterojunction for Efficient Water Oxidation DOI

Yanhong Ding,

Xiaotong Han, Qian Yang

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: 15(22), P. 5985 - 5993

Published: May 30, 2024

The tailor-made transition metal alloy-based heterojunctions hold a promising prospect for the electrocatalytic oxygen evolution reaction (OER). Herein, series of iron–cobalt bimetallic alloy are purposely designed and constructed via newly developed controllable phase separation engineering strategy. results show that process component distribution rely on molar ratio (Fe/Co), indicative content dependent behavior. Theoretical calculations demonstrate electronic structure charge can be modulated optimized, thus leading to formation an electron-rich interface layer, which likely tunes d-band center reduces adsorption energy barrier toward intermediates. As result, Fe0.25Co0.75/Co heterojunction exhibits superior OER activity with low overpotential 185 mV at 10 mA cm–2. Moreover, it reach industrial-level current densities excellent durability in high-temperature high-concentration electrolyte (30 wt % KOH), exhibiting enormous potential industrial applications.

Language: Английский

Citations

7

Achievements and challenges in cobalt-based catalysts for water electrolysis DOI
Mengyu Chen, Jingqi Guan

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 500, P. 157080 - 157080

Published: Oct. 28, 2024

Language: Английский

Citations

6

Trimetallic FeNiMo Nanofibers as High-Efficiency Electrocatalyst for Robust Oxygen Evolution DOI

Meijiao Xu,

Weimo Li,

Mengxiao Zhong

et al.

ACS Materials Letters, Journal Year: 2024, Volume and Issue: unknown, P. 3548 - 3556

Published: July 11, 2024

Language: Английский

Citations

5

Mechanisms and degradation pathways of tetracycline by Co7Fe3 nanoparticles anchored porous carbon activated peroxymonosulfate DOI

Geng Li,

Huiting Zhou,

Shiyu Bian

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 177181 - 177181

Published: Oct. 1, 2024

Language: Английский

Citations

5

Electronic modulation on allotropic Co2P/CoP heterojunctions with N, P co-doped porous carbon matrix through metal-injection toward high-efficiency water splitting DOI
Xu Yu, X.B. Wang, Pinyi He

et al.

Applied Surface Science, Journal Year: 2024, Volume and Issue: 670, P. 160665 - 160665

Published: July 6, 2024

Language: Английский

Citations

4

High Coverage Sub‐Nano Iridium Cluster on Core–Shell Cobalt‐Cerium Bimetallic Oxide for Highly Efficient Full‐pH Water Splitting DOI Creative Commons
Lili Zhang,

Yuanting Lei,

Yinze Yang

et al.

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

Published: Oct. 14, 2024

Abstract The construction of sub‐nanometer cluster catalysts (<1 nm) with almost complete exposure active atoms serves as a promising avenue for the simultaneous enhancement atom utilization efficiency and specific activity. Herein, core–shell cobalt‐cerium bimetallic oxide protected by high coverage Ir clusters (denoted cluster@CoO/CeO 2 ) is constructed confined in situ exsolution strategy. distinctive structure endows enhanced intrinsic activity conductivity, facilitating efficient charge transfer full‐pH water splitting. achieves low overpotentials 49/215, 52/390, 54/243 mV at 10 mA cm −2 hydrogen evolution reaction/oxygen reaction (HER/OER) 0.5 m H SO 4 , 1.0 PBS, KOH, respectively. small decline performance after 300 h operation renders it one most effective DFT calculations indicate that oriented electron (along path from Ce to Co then Ir) creates an electron‐rich environment surface clusters. reconstructed interface electronic provides optimized intermediates adsorption/desorption energy site (for HER) Ir‐Co OER), thus simultaneously speeding up HER/OER kinetics.

Language: Английский

Citations

4