In-situ growth of Co3O4 nanoparticles based on electrospray for an acetone gas sensor

Fan, Xiangxiang; Xu, Yajuan; Ma, Chunlan; He, Wuming

doi:10.1016/j.jallcom.2020.157234

Cited by 130 publications

(44 citation statements)

References 37 publications

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“…Evidence for currently available commercial ketone breathalyzers is lacking. Many studies have assessed the utility of novel sensors in the ketogenic diet [ 25 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 ], but very few have evaluated currently available devices. The BIOSENSE™ device is a breathalyzer with published clinical trial data detailing its efficacy.…”

Section: Current Technologymentioning

confidence: 99%

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The Ketogenic Diet: Breath Acetone Sensing Technology

Alkedeh

Priefer

2021

Biosensors

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The ketogenic diet, while originally thought to treat epilepsy in children, is now used for weight loss due to increasing evidence indicating that fat is burned more rapidly when there is a low carbohydrate intake. This low carbohydrate intake can lead to elevated ketone levels in the blood and breath. Breath and blood ketones can be measured to gauge the level of ketosis and allow for adjustment of the diet to meet the user’s needs. Blood ketone levels have been historically used, but now breath acetone sensors are becoming more common due to less invasiveness and convenience. New technologies are being researched in the area of acetone sensors to capitalize on the rising popularity of the diet. Current breath acetone sensors come in the form of handheld breathalyzer devices. Technologies in development mostly consist of semiconductor metal oxides in different physio-chemical formations. These current devices and future technologies are investigated here with regard to utility and efficacy. Technologies currently in development do not have extensive testing of the selectivity of the sensors including the many compounds present in human breath. While some sensors have undergone human testing, the sample sizes are very small, and the testing was not extensive. Data regarding current devices is lacking and more research needs to be done to effectively evaluate current devices if they are to have a place as medical devices. Future technologies are very promising but are still in early development stages.

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Section: Current Technologymentioning

confidence: 99%

“…The long-term stability of the sensor was not discussed; however, the sensor was noted to be stable over the fluctuations of the test with a constant response. This sensor was not tested in humid conditions nor tested on human subjects [ 59 ].…”

Section: Future Technologiesmentioning

confidence: 99%

The Ketogenic Diet: Breath Acetone Sensing Technology

Alkedeh

Priefer

2021

Biosensors

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“…To date, a variety of gas sensors have been utilized to detect toxic and hazardous gases. Among these, metal–oxide semiconductor (MOS) gas sensors, whose operation is based on the change in the resistance upon exposure to target gases, have attracted significant attention owing to their low cost, low toxicity, simple fabrication route, robustness, high stability, fast response/recovery times, and sensitivity to detect a wide range of target gases [ 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 ]. Notably, in addition to MOS, materials based on conducting polymers and graphene have been employed for the realization of resistive-gas sensors [ 18 ].…”

Section: Introduction: Overview Of the Oxide-based Gas Sensorsmentioning

confidence: 99%

“…Thus, various synthesis approaches or strategies have been used to overcome the limitations of this type of gas sensors: namely, poor selectivity and high operating temperature. A comparison of the most commonly used pristine metal oxides, with different surface morphologies, as a sensing layer in chemiresistive-type of gas sensors is presented in Table 2 [ 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 ].…”

Section: Introduction: Overview Of the Oxide-based Gas Sensorsmentioning

confidence: 99%

“…The general gas-sensing mechanism of resistive-based gas sensors is mainly based on the resistance variations of the sensing materials in the presence of target gases [ 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 ]. A scheme of the general detection mechanism of resistive-based n-type and p-type MOSs sensors, in the presence of oxidizing/reducing gases, is presented in Scheme 1 .…”

Section: Introduction: Overview Of the Oxide-based Gas Sensorsmentioning

confidence: 99%

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State-of-the-Art Research on Chemiresistive Gas Sensors in Korea: Emphasis on the Achievements of the Research Labs of Professors Hyoun Woo Kim and Sang Sub Kim

Navale

Mirzaei

Majhi

et al. 2021

Sensors

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This review presents the results of cutting-edge research on chemiresistive gas sensors in Korea with a focus on the research activities of the laboratories of Professors Sang Sub Kim and Hyoun Woo Kim. The advances in the synthesis techniques and various strategies to enhance the gas-sensing performances of metal-oxide-, sulfide-, and polymer-based nanomaterials are described. In particular, the gas-sensing characteristics of different types of sensors reported in recent years, including core–shell, self-heated, irradiated, flexible, Si-based, glass, and metal–organic framework sensors, have been reviewed. The most crucial achievements include the optimization of shell thickness in core–shell gas sensors, decrease in applied voltage in self-heated gas sensors to less than 5 V, optimization of irradiation dose to achieve the highest response to gases, and the design of selective and highly flexible gas sensors-based WS2 nanosheets. The underlying sensing mechanisms are discussed in detail. In summary, this review provides an overview of the chemiresistive gas-sensing research activities led by the corresponding authors of this manuscript.

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Hybrid Surface Modification and Bulk Doping Enable Spent LiCoO₂ Cathodes for High‐Voltage Operation

Liu,

Han,

Zhang

et al. 2024

Advanced Materials

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The emerging market demand for high‐energy‐density of energy storage devices has been pushing the disposal of end‐of‐life LiCoO2 (LCO) to shift toward sustainable upgrading into structurally stable high‐voltage cathode materials. Herein, an integrated bulk and surface commodification strategy has been proposed to render spent LCO (S‐LCO) to operate at high voltages, involving bulk Mn doping, near surface P gradient doping and Li3PO4/CoP (LPO/CP) coating on the LCO surface to yield upcycled LCO (defined as MP‐LCO@LPO/CP). Benefiting from hybrid surface coating with Li+‐conductive Li3PO4 and electron conductive CoP coupled with Mn and P co‐doping, the optimized MP‐LCO@LPO/CP cathode exhibits enhanced high‐voltage performance, delivering an initial discharge capacity of 218.8 mAh g−1 at 0.2 C with excellent capacity retention of 80.9% (0.5 C) after 200 cycles at a cut‐off voltage of 4.6 V, along with 96.3% of capacity retention over 100 cycles at 4.5 V. Our findings might afford meaningful construction for the upcycling of commercial S‐LCO into next‐generation upmarket cathode materials through the elaborate surface and bulk modification design.This article is protected by copyright. All rights reserved

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In-situ growth of Co3O4 nanoparticles based on electrospray for an acetone gas sensor

Cited by 130 publications

References 37 publications

The Ketogenic Diet: Breath Acetone Sensing Technology

The Ketogenic Diet: Breath Acetone Sensing Technology

State-of-the-Art Research on Chemiresistive Gas Sensors in Korea: Emphasis on the Achievements of the Research Labs of Professors Hyoun Woo Kim and Sang Sub Kim

Hybrid Surface Modification and Bulk Doping Enable Spent LiCoO₂ Cathodes for High‐Voltage Operation

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In-situ growth of Co3O4 nanoparticles based on electrospray for an acetone gas sensor

Cited by 130 publications

References 37 publications

The Ketogenic Diet: Breath Acetone Sensing Technology

The Ketogenic Diet: Breath Acetone Sensing Technology

State-of-the-Art Research on Chemiresistive Gas Sensors in Korea: Emphasis on the Achievements of the Research Labs of Professors Hyoun Woo Kim and Sang Sub Kim

Hybrid Surface Modification and Bulk Doping Enable Spent LiCoO2 Cathodes for High‐Voltage Operation

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Resources

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Hybrid Surface Modification and Bulk Doping Enable Spent LiCoO₂ Cathodes for High‐Voltage Operation