Topic
Freon
About: Freon is a research topic. Over the lifetime, 1323 publications have been published within this topic receiving 9455 citations.
Papers published on a yearly basis
1 / 2
Papers
TL;DR: By applying a conformal LiF coating technique on Li surface with commercial Freon R134a as the reagent, highly reduced side reactions and enhanced cycling stability without overpotential augment for over 200 cycles were proven in symmetric cells.
Abstract: Research on lithium (Li) metal chemistry has been rapidly gaining momentum nowadays not only because of the appealing high theoretical capacity, but also its indispensable role in the next-generation Li–S and Li–air batteries. However, two root problems of Li metal, namely high reactivity and infinite relative volume change during cycling, bring about numerous other challenges that impede its practical applications. In the past, extensive studies have targeted these two root causes by either improving interfacial stability or constructing a stable host. However, efficient surface passivation on three-dimensional (3D) Li is still absent. Here, we develop a conformal LiF coating technique on Li surface with commercial Freon R134a as the reagent. In contrast to solid/liquid reagents, gaseous Freon exhibits not only nontoxicity and well-controlled reactivity, but also much better permeability that enables a uniform LiF coating even on 3D Li. By applying a LiF coating onto 3D layered Li-reduced graphene oxide ...
422 citations
TL;DR: In this article, the general attributes of the hydrate process for demineralizing sea water are discussed, and it is shown that the economics of the process depend on the properties of the hydrating agent used.
Abstract: The general attributes of the hydrate process for demineralizing sea water are discussed, and it is shown that the economics of the process depend on the properties of the hydrating agent used. Eight new hydrates are reported, and the thermodynamic properties of three hydrate systems are presented in some detail: methyl bromide Freon 21, and Freon 31.
129 citations
TL;DR: In this article, the effects of mass flux, spray droplet velocity, droplet diameter, and distance between nozzle and heat source were investigated for horizontal spray cooling on vertical constant heat flux surfaces with subcooled Freon-113.
122 citations
TL;DR: Noise equivalent sensitivity at ppbv level as well as spectroscopic chemical analysis of a mixture of two broadband absorbers with overlapping absorption spectra were demonstrated.
Abstract: Detection of molecules with wide unresolved rotational-vibrational absorption bands is demonstrated by using Quartz Enhanced Photoacoustic Spectroscopy and an amplitude modulated, high power, thermoelectrically cooled quantum cascade laser operating at 8.4 μm in an external cavity configuration. The laser source exhibits single frequency tuning of 135 cm-1 with a maximum optical output power of 50 mW. For trace-gas detection of Freon 125 (pentafluoroethane) at 1208.62 cm-1 a normalized noise equivalent absorption coefficient of NNEA=2.64×10-9 cm-1∙W/Hz1/2 was obtained. Noise equivalent sensitivity at ppbv level as well as spectroscopic chemical analysis of a mixture of two broadband absorbers (Freon 125 and acetone) with overlapping absorption spectra were demonstrated.
119 citations
Patent•
31 May 1973
TL;DR: In this article, a conical and frusto-conical shape intended to fit the hand of the surgeon, and its rigid wall is made of the inexpensive, selfinsulating expanded polystyrene, foamed copolymer of acrylonitrile, butadiene and styrene, Foamed polyethylene or foamed polypropylene plastics.
Abstract: A cryosurgical instrument for use in a variety of surgical procedures is provided with a different tip or probe, depending upon the surgical technique contemplated The instrument has a conical and frusto-conical shape intended to fit the hand of the surgeon, and its rigid wall is made of the inexpensive, selfinsulating expanded polystyrene, foamed copolymer of acrylonitrile, butadiene and styrene, foamed polyethylene or foamed polypropylene plastics The instrument is designed specifically for the purpose of making fluorocarbon compounds Freon 13B1 (CBrF3), Freon 116 (CF3-CF3) and Freon 13 managable for cryosurgical and other medical and therapeutic uses not previously used in the prior arts The instrument is fed with the cryogenic fluid, which may be liquid nitrogen, nitrous oxide or one of the milder fluorocarbon compounds Freon 11, Freon 12 and Freon 22, in the upright position with the probe pointing upwardly in such a manner that the internal portion of the probe is not brought into contact with the crogenic fluid until the instrument is inverted and readied for use
112 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2025 | 7 |
| 2024 | 18 |
| 2023 | 31 |
| 2022 | 38 |
| 2021 | 20 |
| 2020 | 23 |