Electrochemical detection and characterization of nanoparticles: A potential tool for environmental purposes

Neves, Marta M.P.S.; Nouws, Henri P. A.; Delerue–Matos, Cristina; Martín‐Yerga, Daniel

doi:10.1016/j.coelec.2020.04.007

Cited by 12 publications

(4 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…159 Beyond gaining fundamental insight for materials development 160 , we mention that stochastic electrochemistry has immediate applications in nanomaterial synthesis 161 , including the formation of nanoparticles from dilute precursors, 49 which has been further demonstrated for metal recycling by the recovery of solution palladium to construct palladium-carbon catalysts. 162 In a similar scheme, stochastic electrochemistry can be applied to environmental sensing 163 , or nanoparticles may be used to extend the limits of other point of care sensors. 164,165 Model collision electrocatalytic amplification strategies, like platinum nanoparticles electrocatalyzing hydrazine oxidation, have been employed for the sensitive detection of biomolecules like tumor protein markers, 166 DNA, 167 and extended to track DNA hybridization effects.…”

Section: Single Entity Collision Experimentsmentioning

confidence: 99%

Single Entity Electrocatalysis

Clarke,

Krushinski,

Vannoy

et al. 2024

Chem. Rev.

View full text Add to dashboard Cite

Making a measurement over millions of nanoparticles or exposed crystal facets seldom reports on reactivity of a single nanoparticle or facet, which may depart drastically from ensemble measurements. Within the past 30 years, science has moved toward studying the reactivity of single atoms, molecules, and nanoparticles, one at a time. This shift has been fueled by the realization that everything changes at the nanoscale, especially important industrially relevant properties like those important to electrocatalysis. Studying single nanoscale entities, however, is not trivial and has required the development of new measurement tools. This review explores a tale of the clever use of old and new measurement tools to study electrocatalysis at the single entity level. We explore in detail the complex interrelationship between measurement method, electrocatalytic material, and reaction of interest (e.g., carbon dioxide reduction, oxygen reduction, hydrazine oxidation, etc.). We end with our perspective on the future of single entity electrocatalysis with a key focus on what types of measurements present the greatest opportunity for fundamental discovery.

show abstract

Section: Single Entity Collision Experimentsmentioning

confidence: 99%

Single Entity Electrocatalysis

Clarke,

Krushinski,

Vannoy

et al. 2024

Chem. Rev.

View full text Add to dashboard Cite

show abstract

“…Electrochemical techniques, such as voltammetry and particle−electrode collision-based chronoamperometry, have shown great potential for in situ detection and characterization of nanomaterials in aqueous environments. 215 The electrochemical measurement can be performed on portable instruments, making them particularly suitable for on-site environmental analysis.…”

Section: Quantify Nanomaterials In Environmental Samplesmentioning

confidence: 99%

Current Methods and Prospects for Analysis and Characterization of Nanomaterials in the Environment

Jiang

Liu

Zhang

et al. 2022

Environ. Sci. Technol.

View full text Add to dashboard Cite

Analysis and characterization of naturally occurring and engineered nanomaterials in the environment are critical for understanding their environmental behaviors and defining real exposure scenarios for environmental risk assessment. However, this is challenging primarily due to the low concentration, structural heterogeneity, and dynamic transformation of nanomaterials in complex environmental matrices. In this critical review, we first summarize sample pretreatment methods developed for separation and preconcentration of nanomaterials from environmental samples, including natural waters, wastewater, soils, sediments, and biological media. Then, we review the state-of-the-art microscopic, spectroscopic, mass spectrometric, electrochemical, and size-fractionation methods for determination of mass and number abundance, as well as the morphological, compositional, and structural properties of nanomaterials, with discussion on their advantages and limitations. Despite recent advances in detecting and characterizing nanomaterials in the environment, challenges remain to improve the analytical sensitivity and resolution and to expand the method applications. It is important to develop methods for simultaneous determination of multifaceted nanomaterial properties for in situ analysis and characterization of nanomaterials under dynamic environmental conditions and for detection of nanoscale contaminants of emerging concern (e.g., nanoplastics and biological nanoparticles), which will greatly facilitate the standardization of nanomaterial analysis and characterization methods for environmental samples.

show abstract

“…6 Consequently, the advancement of novel and high-efficiency methodologies for monitoring these compounds in diverse actual samples stands pivotal in environmental health management. Compared to traditional chromatographic technology, electrochemical methods have attracted more attention owing to their ease of operation, low cost, and rapid response, 7 but there are relatively few studies available on the electrochemical detection of 4-NBA.…”

Section: Introductionmentioning

confidence: 99%