Probing Single-Particle Electrocatalytic Stability: Electrogenerated Chemiluminescence Imaging of Nanoparticle Array DOI

Zhouzhou Zhu,

Xiangfu Hu,

Ying Wei

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: unknown, P. 12228 - 12233

Published: Dec. 5, 2024

Understanding the stability of single nanoparticles is crucial for optimizing their performance in various applications, including catalysis. In this study, we employed electrochemiluminescence (ECL) imaging to investigate temporal individual Au and Pt within precisely engineered arrays. Our results reveal significant differences NPs. While both exhibit initial decay due diffusion limitations, NPs undergo more rapid degradation, attributed surface oxidation detachment. contrast, demonstrate much better with little oxidation. This study provides valuable insights into fundamental behavior single-NP electrocatalysis highlights potential ECL as a powerful tool unraveling complex dynamics nanoscale systems.

Language: Английский

Ultrasensitive Electrochemiluminescence Biosensor with ZIF‐67@MXene as an Efficient Co‐Reaction Accelerator and Plasmonic Nanozyme as a Smart Signal Amplification Probe DOI
Jing Wang, Ran Seon Hong, Zhen Yang

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 18, 2024

Abstract Exploring novel electrochemiluminescence (ECL) co‐reaction accelerators to construct ultrasensitive sensing systems is a prominent focus for developing advanced ECL sensors. However, challenges still remain in finding highly efficient and understanding their promoting mechanisms. In this paper, ZIF‐67@MXene nanosheet composites, with conductive in‐plane structure confined‐stable pore/channel, are designed act as high‐efficient achieve significant enhancement the luminol‐H 2 O based system. Mechanism investigation suggests that hydroxyl radicals (·OH) singlet oxygen ( 1 ) can be selectively preferentially generated on due stable absorption of ·OH , leading remarkable efficiency luminol (830%). Finally, by designing plasmonic NH ‐MIL‐88@Pd nanozyme, an “on‐off” switch immunosensor constructed detection prostate‐specific antigen (PSA). Based multiple signal amplification effect, linear range PSA expanded three orders magnitude. The limit also improved from 1.44 × 10 −11 9.1 −13 g mL −1 . This work proposes effective method preparation provides new strategy sensitive cancer markers.

Language: Английский

Citations

8
Electrochemiluminescence Microscopy in Nano‐Electrochemistry Research: Unraveling the Underlying Principles, Tracing the Evolutionary Developments, and Charting the Prospective Trajectories DOI Open Access

Zejing Xing,

Xuanzhao Lu, Zhichen Zhang

et al.

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

Published: March 12, 2025

Abstract Electrochemical technology provides unique opportunities to create an environment‐friendly and sustainable chemical industry. Nano‐electrochemistry offers valuable insights into the comprehension of electrochemical mechanisms behaviors at nanoscale, as opposed complex ensemble systems. Despite use various analytical tools, such nanopore scanning probe microscopy, for nano‐electrochemical research, direct operando high‐throughput spatially resolved measurements remain challenging. Electrochemiluminescence (ECL) is reactions‐dependent luminescence process without external light sources. Coupled with a microscopy configuration, novel imaging methodology ECL (ECLM), developed. ECLM, due its distinctive mode, holds considerable potential in field nano‐electrochemistry. This review will initially present overview basic principles ECL. The next section describe design ECLM apparatus discuss diverse applications Finally, challenges outline prospects further development technique summarized.

Language: Английский

Citations

0
Aggregation-induced electrochemiluminescence probe detects poisoning NOx for unveiling Pt catalyst deactivation and halogen ion activation effects during ammonia electro-oxidation DOI

Dina Sun,

Jiaqi Zhang,

Jing Du

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161608 - 161608

Published: March 1, 2025

Language: Английский

Citations

0
The Improved Covalent Coupling Induced by Bi Cations in CoBiSex Nanosheet Arrays for Stable Water Electrolysis DOI
Xinlin Wang, Jiayi Li,

Pengkai He

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

Transition metal selenides (TMSes) with high electrical conductivity, easily regulated morphological structure, and unique electronic structure have been explored as promising electrocatalysts for electrolytic water, while the lower intrinsic electrocatalytic capability has limited their wide application. Herein, we obtained CoSe nanosheet arrays Bi cations incorporation (CoBiSex arrays) driven by spinel oxides. Compared oxides, low electronegativity of Se in CoBiSex leads to a portion Co2+ spin states (t2g6eg1) due covalent interaction between Co Se, which can facilitate charge transfer. Density functional theory (DFT) calculation results further identify redistribution electron density from Co, intensifying adsorption OOH* during water process 140 h robust catalytic performance. This work offers strategy exploring TMSe materials potential applications process.

Language: Английский

Citations

0
Identifying In Situ Activity and Selectivity of Oxygen Reduction Catalysts at the Subparticle Level DOI

Yufei Yao,

Hongyang Qu,

Zehui Sun

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: May 6, 2025

Oxygen reduction reaction (ORR) plays a crucial role in both the chemical and energy industries. Despite substantial advancements theoretical, computational, experimental studies, identifying situ activity selectivity ORR electrocatalysis remains major challenge. Here, using suite of correlative operando scanning electrochemical probe electrochemiluminescence microscopy techniques, we establish link between morphological structure local single Au Au@Pt platelets at subparticle level. It is clearly shown that edge facets exhibit higher for 4e- compared to basal planes, whereas planes demonstrate superior 2e- relative facets. These findings deepen our understanding across different level, which offers valuable guidance rational design highly efficient electrocatalysts.

Language: Английский

Citations

0
Measuring and Regulating the Reaction Layer for Enhanced Electrochemiluminescence Analysis DOI
Ya-Feng Wang, Bin Su

ACS electrochemistry., Journal Year: 2025, Volume and Issue: unknown

Published: May 12, 2025

Language: Английский

Citations

0
Bimetallic AgCu Microspheres based Electrochemical Sensor for Dopamine and Antibacterial Activity DOI
Yunjie Li,

Yawen Guan,

Shuo Li

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: 13(3), P. 117212 - 117212

Published: May 20, 2025

Language: Английский

Citations

0
Rapid Size Determination of Quasispherical Gold Nanoparticles by Electrocatalysis Efficiency-Regulated Electrochemiluminescence DOI
Xueqian Chen, Junjun Su,

Dengke Xiang

et al.

Analytical Chemistry, Journal Year: 2024, Volume and Issue: 96(44), P. 17689 - 17697

Published: Oct. 23, 2024

The size of gold nanoparticles (AuNPs) largely decides their properties and applications, making the rapid screening AuNP important. Despite fact that AuNP-amplified electrochemiluminescence (ECL) is widely used in various ECL sensing mechanism enhancement remains elusive, especially quantitative relationship between enhanced intensity AuNPs. In this work, taking quasispherical citrate-stabilized AuNPs as model nanoparticles, we have reported S

Language: Английский

Citations

1
Nanostructure Impact on Electrocatalysis in Gold Nanodimers via Electrochemiluminescence Microscopy DOI

Qian-Qian Tao,

Conghui Xu, Wei Zhao

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(76), P. 10556 - 10559

Published: Jan. 1, 2024

An exploration of enhanced electrocatalysis mechanism gold nanodimers via electrochemiluminescence microscopy is proposed.

Language: Английский

Citations

0
Probing Single-Particle Electrocatalytic Stability: Electrogenerated Chemiluminescence Imaging of Nanoparticle Array DOI

Zhouzhou Zhu,

Xiangfu Hu,

Ying Wei

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: unknown, P. 12228 - 12233

Published: Dec. 5, 2024

Understanding the stability of single nanoparticles is crucial for optimizing their performance in various applications, including catalysis. In this study, we employed electrochemiluminescence (ECL) imaging to investigate temporal individual Au and Pt within precisely engineered arrays. Our results reveal significant differences NPs. While both exhibit initial decay due diffusion limitations, NPs undergo more rapid degradation, attributed surface oxidation detachment. contrast, demonstrate much better with little oxidation. This study provides valuable insights into fundamental behavior single-NP electrocatalysis highlights potential ECL as a powerful tool unraveling complex dynamics nanoscale systems.

Language: Английский

Citations

0