Growth and structure of carbon nanotubes based novel catalyst for ultrafast nano-temperature sensor application

Ali, Khurshid; Hafez, M.

doi:10.1016/j.spmi.2012.10.007

Cited by 20 publications

(10 citation statements)

References 28 publications

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“…The electrical resistance change ratio is related to the temperature coefficient of resistance (TCR, defined as the relative change of resistance when the temperature is changed by 1 K, i.e., where R 0 refers to the initial resistance). Here the TCR of GNPs film a 5 0.0371°C À1 , which is much higher than that of MWCNTs film (about 0.0034°C À1 ) and other sensors made from different kinds of materials 15,[30][31][32][33][34][35] and traditional temperature, like Pt100 and metallic oxide, 3 as shown in Table I. The main resistance change in this region is caused by thermal expansion.…”

Section: B Stability At Constant Temperaturesmentioning

confidence: 89%

Temperature-dependent electrical properties of graphene nanoplatelets film dropped on flexible substrates

et al. 2014

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The fabrication of a temperature sensor based on graphene nanoplatelets (GNPs) is reported. A preheat process was carried out and the micrographs of both original and preheat-treated GNPs are observed and compared. Nonlinear temperature variation of resistance is observed and humidity interference is found to be negligible. Region of 10-60°C (the linear region) is selected as the sensor range and further studied. High sensitivity of GNPs can be seen and the temperature coefficient of resistance (TCR) of 0.0371 is calculated, higher than that of multiwall carbon nanotubes (MWCNTs) and many other materials reported in references. Great repeatability and small hysteresis are obtained. The time constant of the GNPs film is about 5 s, much shorter than that of MWCNTs film. The result suggests that GNPs have potential applications for use in highly sensitive and fast-response temperature sensors.

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Section: B Stability At Constant Temperaturesmentioning

confidence: 89%

Temperature-dependent electrical properties of graphene nanoplatelets film dropped on flexible substrates

et al. 2014

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“…Because of their good electrical response to the temperature variations, CNTs became a serious candidate as an emerging material to provide solutions for the future temperature sensors development. Both single and multiwall CNTs, having either metallic and semiconductor behavior, have been reported as temperature sensors [11,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55].…”

Section: Constructive Solutions For Temperature Sensors Based On Cntsmentioning

confidence: 99%

“…There are a few structure designs, fabricated in batch assembly processes [59], but most of CNT-based sensors are produced in a serial assembly process, resulting in a low number of products. Over time, several assembling methods have been developed, including: direct growth on the substrate by chemical vapor deposition (CVD) process [29,30,31,32,33,34,53,54,55];thin films obtained by gluing [37,38], printing [35,36], filtration over a membrane [51,52], spraying [49,50,60];drop-casting deposition from a solution followed by a dielectrophoresis (DEP) procedure [39,40,41,46,47,61,62]. …”

Section: Constructive Solutions For Temperature Sensors Based On Cntsmentioning

confidence: 99%

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Carbon Nanotubes and Carbon Nanotube Structures Used for Temperature Measurement

Monea

Ionete

Spiridon

et al. 2019

Sensors

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Accurate measurement of temperatures with low power consumption with the highest sensitivity and smallest possible elements is still a challenge. The thermal, electrical, and mechanical properties of carbon nanotubes (CNTs) have suggested that their use as a very sensitive sensing element will allow the creation of different sensors, far superior to other devices of similar size. In this paper, we present a short review of different constructive designs of CNTs based resistive sensors used for temperature measurement, available in literature, assembled using different processes, such as self-assembly, drop-casting from a solution, thin films obtained by gluing, printing, spraying, or filtration over a special membrane. As particular cases, temperature sensors obtained from CNT-polymer nanocomposite structures, CNTs filled with uniformly dispersed Fe3O4 nanoparticles or with gallium, and carbon nanotube wires (CNWs) hybrids are presented. Using these preparation procedures, mixtures of CNTs with different dimensions and chirality, as well as with a variable level of impurities and structural defects, can be produced. The sensors’ performance charts are presented, highlighting a number of aspects regarding the applicability of CNT structures for temperature measurement ranging from cryogenic temperatures to high temperatures, the limitations they have, their characteristics and advantages, as well as the special situations that may arise given the particular structure of these new types of materials, together with basic relationships and parameters for CNTs characterization. Further research will be required to develop the techniques of manipulating and depositing individual CNTs on supports and electrodes for the development of temperature sensors.

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“…The high number of applications is due to enhanced selectivity, sensitivity and faster electrochemically reversible responses at standard temperatures and pressure. Applications include but are not limited to chemical sensors [28][29][30][31][32], catalyst scaffolds [33][34][35][36], energy storage and conversion [27,31,37] and electronic devices [25,38,39].…”

Section: Introductionmentioning

confidence: 99%

Carbon nanomaterials and their application to electrochemical sensors: a review

Power¹,

Gorey²,

Chandra³

et al. 2018

Nano Online

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Carbon has long been applied as an electrochemical sensing interface owing to its unique electrochemical properties. Moreover, recent advances in material design and synthesis, particularly nanomaterials, has produced robust electrochemical sensing systems that display superior analytical performance. Carbon nanotubes (CNTs) are one of the most extensively studied nanostructures because of their unique properties. In terms of electroanalysis, the ability of CNTs to augment the electrochemical reactivity of important biomolecules and promote electron transfer reactions of proteins is of particular interest. The remarkable sensitivity of CNTs to changes in surface conductivity due to the presence of adsorbates permits their application as highly sensitive nanoscale sensors. CNT-modified electrodes have also demonstrated their utility as anchors for biomolecules such as nucleic acids, and their ability to diminish surface fouling effects. Consequently, CNTs are highly attractive to researchers as a basis for many electrochemical sensors. Similarly, synthetic diamonds electrochemical properties, such as superior chemical inertness and biocompatibility, make it desirable both for (bio) chemical sensing and as the electrochemical interface for biological systems. This is highlighted by the recent development of multiple electrochemical diamond-based biosensors and bio interfaces.Keywords: bio sensors; carbon nanomaterials; carbon nanotubes; electrochemical sensing; synthetic diamond Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.

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Growth and structure of carbon nanotubes based novel catalyst for ultrafast nano-temperature sensor application

Cited by 20 publications

References 28 publications

Temperature-dependent electrical properties of graphene nanoplatelets film dropped on flexible substrates

Temperature-dependent electrical properties of graphene nanoplatelets film dropped on flexible substrates

Carbon Nanotubes and Carbon Nanotube Structures Used for Temperature Measurement

Carbon nanomaterials and their application to electrochemical sensors: a review

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