Harnessing graphene quantum dots for the selective and sensitive detection of dye contaminants DOI

Yuping Xiong,

Weitao Li, Luoman Zhang

et al.

Diamond and Related Materials, Journal Year: 2024, Volume and Issue: unknown, P. 111914 - 111914

Published: Dec. 1, 2024

Language: Английский

Green Synthesis of Nitrogen-Doped Graphene Quantum Dots by Recycling Waste Graphite and Impact of Oxygen Adsorption on Enhancing Photoluminescence DOI
G. Yu,

Jung Hyeon Yoo,

Seok Bin Kwon

et al.

Surfaces and Interfaces, Journal Year: 2025, Volume and Issue: unknown, P. 106342 - 106342

Published: March 1, 2025

Language: Английский

Citations

0
Functional Group Engineering of Single‐Walled Carbon Nanotubes for Anchoring Copper Nanoparticles Toward Selective CO2 Electroreduction to C2 Products DOI
Kang Wang, Kai Huang, Zeming Wang

et al.

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

Published: April 3, 2025

Abstract Electroreduction of carbon dioxide (CO 2 ) is a key strategy for achieving net‐zero emissions. Copper (Cu)‐based electrocatalysts have shown promise CO conversion into valuable chemicals but are hindered by limited C 2+ product selectivity due to competing hydrogen evolution and ineffective dimerization adsorbed intermediate ( * CO). Here, functional‐group‐directed reported enhance using single‐walled nanotubes (SWCNTs) as supports. The catalytic performance Cu nanoparticles strongly influenced the type density functional groups on SWCNTs. Optimized Cu/amine‐functionalized SWCNTs achieved Faradaic efficiency 66.2% partial current −270 mA cm −2 products within flow cell, outperforming Cu/SWCNTs Cu/cyano‐functionalized Density theory calculations revealed that electron‐donating amine can facilitate electron transfer from graphite sheet atoms, thereby shifting d‐band center upward. This shift enhances its hydrogenation derivative adsorption promotes water splitting, leading an increased tendency generation products. In situ infrared Raman spectroscopy confirm enhancement CHO coverage, facilitating C─C coupling. work provides molecular framework exploring interactions between active metals in electrolysis, offering insights designing catalysts broad range electrocatalytic processes.

Language: Английский

Citations

0
Rationally Designing Efficient Biomass Carbon Electrocatalysts for H2O2 Synthesis and Near-Neutral Zn–Air Batteries with Preliminary Machine Learning Guidance DOI
Jiawei He,

Zijun Shen,

Shengchun Hu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 8, 2025

Biomass-based carbon materials are considered promising metal-free catalysts for the 2e- oxygen reduction reaction (ORR) to synthesize H2O2 and act as air electrodes in Zn-air batteries. However, optimization of catalyst structure is a complex process due diversity biomass precursors synthesis parameters. Machine learning, new artificial intelligence technology, has recently been used various fields owing its ability rapidly analyze large amounts data guide material synthesis. Consequently, we constructed machine learning model based on previously reported experimental guided fabrication boron-doped ORR. The achieved catalytic performance exceeded most ORR terms selectivity (90-95% broad potentials 0.30-0.68 V vs reversible hydrogen electrode), stability (maintaining over 90% 12 h), yield (3450 mmol gcatalyst-1 h-1), Faraday efficiency (over 90%). We applied batteries showed high capacity (2856 mAh g-1) twice that traditional commercial metal catalysts. Therefore, this study proposed an effective biomass-based field electrocatalysis.

Language: Английский

Citations

0
Highly selective electrosynthesis of hydrogen peroxide with tellurium nanoparticles encapsulated in ultrathin graphitic carbon shells DOI
Zeming Wang, Huazhang Guo, Shihao Zhang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162752 - 162752

Published: April 1, 2025

Language: Английский

Citations

0
Boosting photogenerated charge accumulation of oxidated carbon nitride nanotubes for efficient CO2 photoreduction DOI
Weidong Hou,

Yuexia Li,

Kang Wang

et al.

Science China Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 14, 2025

Language: Английский

Citations

0
Dual-ligand engineered CoNi alloy/N-doped carbon nanotubes bifunctional ORR/OER electrocatalyst for long-lifespan rechargeable Zn-air batteries DOI
Yue Du,

Zhiyi Zhong,

Zhixian Shi

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 683, P. 631 - 640

Published: Dec. 7, 2024

Language: Английский

Citations

3
A novel ratiometric electrochemical aptasensor based on graphene quantum dots/Cu-MOF nanocomposite for the on-site determination of Staphylococcus aureus DOI
Xiaofeng Lin, Chenghao Liu,

Qiaowen Lei

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 485, P. 136845 - 136845

Published: Dec. 13, 2024

Language: Английский

Citations

3
Harnessing graphene quantum dots for the selective and sensitive detection of dye contaminants DOI

Yuping Xiong,

Weitao Li, Luoman Zhang

et al.

Diamond and Related Materials, Journal Year: 2024, Volume and Issue: unknown, P. 111914 - 111914

Published: Dec. 1, 2024

Language: Английский

Citations

1