Spontaneous oxidation in aqueous microdroplets: water radical cation as primary oxidizing agent

L Qiu, RG Cooks - Angewandte Chemie, 2024 - Wiley Online Library
Exploration of the unique chemical properties of interfaces can unlock new understanding. A
striking example is the finding of accelerated reactions, particularly spontaneous oxidation …

Water–solid contact electrification causes hydrogen peroxide production from hydroxyl radical recombination in sprayed microdroplets

B Chen, Y **a, R He, H Sang… - Proceedings of the …, 2022 - National Acad Sciences
Contact electrification between water and a solid surface is crucial for physicochemical
processes at water–solid interfaces. However, the nature of the involved processes remains …

Sprayed water microdroplets are able to generate hydrogen peroxide spontaneously

MA Mehrgardi, M Mofidfar, RN Zare - Journal of the American …, 2022 - ACS Publications
Ultrapure N2 gas was bubbled through water, and the humidified output containing
undetectable concentrations of ozone filled a closed chamber in which 18 MΩ-cm water was …

The emerging chemistry of self-electrified water interfaces

F Galembeck, LP Santos, TAL Burgo… - Chemical Society …, 2024 - pubs.rsc.org
Water is known for dissipating electrostatic charges, but it is also a universal agent of matter
electrification, creating charged domains in any material contacting or containing it. This new …

Spontaneous reduction-induced degradation of viologen compounds in water microdroplets and its inhibition by host–guest complexation

C Gong, D Li, X Li, D Zhang, D **ng… - Journal of the …, 2022 - ACS Publications
Water serves as an inert environment for the dispersion and application of many kinds of
herbicides. Viologen compounds, a type of widely used but highly toxic herbicide, are stable …

Spontaneous dark formation of OH radicals at the interface of aqueous atmospheric droplets

K Li, Y Guo, SA Nizkorodov, Y Rudich… - Proceedings of the …, 2023 - National Acad Sciences
Hydroxyl radical (OH) is a key oxidant that triggers atmospheric oxidation chemistry in both
gas and aqueous phases. The current understanding of its aqueous sources is mainly …

Capture of hydroxyl radicals by hydronium cations in water microdroplets

D **ng, Y Meng, X Yuan, S **, X Song… - Angewandte …, 2022 - Wiley Online Library
Despite the high stability of bulk water, water microdroplets possess strikingly different
properties, such as the presence of hydroxyl radicals (OH⋅) at the air–water interface …

Electrostatics and chemical reactivity at the air–water interface

MTC Martins-Costa, MF Ruiz-López - Journal of the American …, 2023 - ACS Publications
It has been recently discovered that chemical reactions at aqueous interfaces can be orders
of magnitude faster compared to conventional bulk phase reactions, but despite its wide …

Spontaneous formation of hydrogen peroxide in water microdroplets

JP Heindel, H Hao, RA LaCour… - The journal of physical …, 2022 - ACS Publications
There is accumulating evidence that many chemical reactions are accelerated by several
orders of magnitude in micrometer-sized aqueous or organic liquid droplets compared to …

Through-Space Electrochemiluminescence Reveals Bubble Forces at Remote Phase Boundaries

BR Layman, JE Dick - Journal of the American Chemical Society, 2023 - ACS Publications
Several groups have reported on the curious chemistry and reaction acceleration in
confined volumes. These complex multiphase systems most closely resemble natural …