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Zhang Y, Liu Y, Lu Y, Gong S, Haick H, Cheng W, Wang Y. Tailor-Made Gold Nanomaterials for Applications in Soft Bioelectronics and Optoelectronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2405046. [PMID: 39022844 DOI: 10.1002/adma.202405046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 06/02/2024] [Indexed: 07/20/2024]
Abstract
In modern nanoscience and nanotechnology, gold nanomaterials are indispensable building blocks that have demonstrated a plethora of applications in catalysis, biology, bioelectronics, and optoelectronics. Gold nanomaterials possess many appealing material properties, such as facile control over their size/shape and surface functionality, intrinsic chemical inertness yet with high biocompatibility, adjustable localized surface plasmon resonances, tunable conductivity, wide electrochemical window, etc. Such material attributes have been recently utilized for designing and fabricating soft bioelectronics and optoelectronics. This motivates to give a comprehensive overview of this burgeoning field. The discussion of representative tailor-made gold nanomaterials, including gold nanocrystals, ultrathin gold nanowires, vertically aligned gold nanowires, hard template-assisted gold nanowires/gold nanotubes, bimetallic/trimetallic gold nanowires, gold nanomeshes, and gold nanosheets, is begun. This is followed by the description of various fabrication methodologies for state-of-the-art applications such as strain sensors, pressure sensors, electrochemical sensors, electrophysiological devices, energy-storage devices, energy-harvesting devices, optoelectronics, and others. Finally, the remaining challenges and opportunities are discussed.
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Affiliation(s)
- Yujie Zhang
- Department of Chemical Engineering, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Yi Liu
- Department of Chemical Engineering, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Yuerui Lu
- School of Engineering, College of Engineering, Computing and Cybernetics, The Australian National University, Canberra, ACT, 2601, Australia
| | - Shu Gong
- School of Materials Science and Engineering, Central South University, Changsha, 410083, P. R. China
| | - Hossam Haick
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Wenlong Cheng
- School of Biomedical Engineering, The University of Sydney, Darlington, NSW, 2008, Australia
| | - Yan Wang
- Department of Chemical Engineering, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
- Key Laboratory of Science and Engineering for Health and Medicine of Guangdong Higher Education Institutes, Guangdong Technion - Israel Institute of Technology, Shantou, Guangdong, 515063, China
- Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
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2
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Lu B, Stolte M, Liu D, Zhang X, Zhao L, Tian L, Frisbie CD, Würthner F, Tao X, He T. High Sensitivity and Ultra-Broad-Range NH 3 Sensor Arrays by Precise Control of Step Defects on The Surface of Cl 2-Ndi Single Crystals. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308036. [PMID: 38308194 PMCID: PMC11005746 DOI: 10.1002/advs.202308036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/02/2024] [Indexed: 02/04/2024]
Abstract
Vapor sensors with both high sensitivity and broad detection range are technically challenging yet highly desirable for widespread chemical sensing applications in diverse environments. Generally, an increased surface-to-volume ratio can effectively enhance the sensitivity to low concentrations, but often with the trade-off of a constrained sensing range. Here, an approach is demonstrated for NH3 sensor arrays with an unprecedentedly broad sensing range by introducing controllable steps on the surface of an n-type single crystal. Step edges, serving as adsorption sites with electron-deficient properties, are well-defined, discrete, and electronically active. NH3 molecules selectively adsorb at the step edges and nearly eliminate known trap-like character, which is demonstrated by surface potential imaging. Consequently, the strategy can significantly boost the sensitivity of two-terminal NH3 resistance sensors on thin crystals with a few steps while simultaneously enhancing the tolerance on thick crystals with dense steps. Incorporation of these crystals into parallel sensor arrays results in ppb-to-% level detection range and a convenient linear relation between sheet conductance and semi-log NH3 concentration, allowing for the precise localization of vapor leakage. In general, the results suggest new opportunities for defect engineering of organic semiconductor crystal surfaces for purposeful vapor or chemical sensing.
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Affiliation(s)
- Bin Lu
- State Key Laboratory of Crystal Materials and Institute of Crystal MaterialsShandong UniversityJinan250100China
| | - Matthias Stolte
- Universität WürzburgInstitut für Organische Chemie & Center for Nanosystems ChemistryAm Hubland97074WürzburgGermany
| | - Dong Liu
- State Key Laboratory of Crystal Materials and Institute of Crystal MaterialsShandong UniversityJinan250100China
| | - Xiaojing Zhang
- State Key Laboratory of Crystal Materials and Institute of Crystal MaterialsShandong UniversityJinan250100China
| | - Lihui Zhao
- State Key Laboratory of Crystal Materials and Institute of Crystal MaterialsShandong UniversityJinan250100China
| | - Liehao Tian
- State Key Laboratory of Crystal Materials and Institute of Crystal MaterialsShandong UniversityJinan250100China
| | - C. Daniel Frisbie
- Department of Chemical Engineering and Materials ScienceUniversity of MinnesotaMinneapolisMinnesota55455USA
| | - Frank Würthner
- Universität WürzburgInstitut für Organische Chemie & Center for Nanosystems ChemistryAm Hubland97074WürzburgGermany
| | - Xutang Tao
- State Key Laboratory of Crystal Materials and Institute of Crystal MaterialsShandong UniversityJinan250100China
| | - Tao He
- State Key Laboratory of Crystal Materials and Institute of Crystal MaterialsShandong UniversityJinan250100China
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Lan K, Liu S, Wang Z, Long L, Qin G. High-performance pyramid-SiNWs biosensor for NH 3gas detection. NANOTECHNOLOGY 2023; 35:105501. [PMID: 38055986 DOI: 10.1088/1361-6528/ad12eb] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 12/05/2023] [Indexed: 12/08/2023]
Abstract
NH3is widely existed in the environment and is closely associated with various health issues. Additionally, detecting the small amounts of NH3exhaled by patients with liver and kidney diseases offers potential opportunities for painless early disease diagnosis. Therefore, there is an urgent need for a convenient, rapid, and highly sensitive real-time NH3monitoring method. This work presents a high-performance NH3sensor based on olfactory receptor-derived peptides (ORPs) on a pyramid silicon nanowires (SiNWs) structure substrate. First, we successfully fabricated the pyramid-SiNWs structure on a silicon substrate using a chemical etching method. Subsequently, by dehydrative condensation reaction between the amino groups on APTES and the carboxyl groups of ORPs, ORPs were successfully immobilized onto the pyramid-SiNWs structure. This methodology allows the ORPs sensor on the pyramid-SiNWs substrate to detect NH3as low as 1 ppb, which was the reported lowest limit of detection, with a higher response rate compared to ORPs sensors on flat SiNWs substrates. The sensors also exhibit good sensitivity and stability for NH3gas detection. The results show the feasibility and potential applications of ORPs-pyramid-SiNWs structure sensors, in the fields of food safety, disease monitoring, and environmental protection, etc.
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Affiliation(s)
- Kuibo Lan
- School of Microelectronics, Tianjin University, Tianjin, 300072, People's Republic of China
- Tianjin Key Laboratory of Imaging and Sensing Microelectronic Technology, Tianjin, 300072, People's Republic of China
| | - Shuaiyan Liu
- School of Microelectronics, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Zhi Wang
- School of Microelectronics, Tianjin University, Tianjin, 300072, People's Republic of China
- Tianjin Key Laboratory of Imaging and Sensing Microelectronic Technology, Tianjin, 300072, People's Republic of China
| | - Lixia Long
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, People's Republic of China
| | - Guoxuan Qin
- School of Microelectronics, Tianjin University, Tianjin, 300072, People's Republic of China
- Tianjin Key Laboratory of Imaging and Sensing Microelectronic Technology, Tianjin, 300072, People's Republic of China
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Hooshmand S, Kassanos P, Keshavarz M, Duru P, Kayalan CI, Kale İ, Bayazit MK. Wearable Nano-Based Gas Sensors for Environmental Monitoring and Encountered Challenges in Optimization. SENSORS (BASEL, SWITZERLAND) 2023; 23:8648. [PMID: 37896744 PMCID: PMC10611361 DOI: 10.3390/s23208648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/04/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023]
Abstract
With a rising emphasis on public safety and quality of life, there is an urgent need to ensure optimal air quality, both indoors and outdoors. Detecting toxic gaseous compounds plays a pivotal role in shaping our sustainable future. This review aims to elucidate the advancements in smart wearable (nano)sensors for monitoring harmful gaseous pollutants, such as ammonia (NH3), nitric oxide (NO), nitrous oxide (N2O), nitrogen dioxide (NO2), carbon monoxide (CO), carbon dioxide (CO2), hydrogen sulfide (H2S), sulfur dioxide (SO2), ozone (O3), hydrocarbons (CxHy), and hydrogen fluoride (HF). Differentiating this review from its predecessors, we shed light on the challenges faced in enhancing sensor performance and offer a deep dive into the evolution of sensing materials, wearable substrates, electrodes, and types of sensors. Noteworthy materials for robust detection systems encompass 2D nanostructures, carbon nanomaterials, conducting polymers, nanohybrids, and metal oxide semiconductors. A dedicated section dissects the significance of circuit integration, miniaturization, real-time sensing, repeatability, reusability, power efficiency, gas-sensitive material deposition, selectivity, sensitivity, stability, and response/recovery time, pinpointing gaps in the current knowledge and offering avenues for further research. To conclude, we provide insights and suggestions for the prospective trajectory of smart wearable nanosensors in addressing the extant challenges.
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Affiliation(s)
- Sara Hooshmand
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla, Istanbul 34956, Turkey
| | - Panagiotis Kassanos
- The Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, South Kensington, London SW7 2AZ, UK;
- Department of Electrical and Electronic Engineering, Imperial College London, South Kensington, London SW7 2AZ, UK
| | - Meysam Keshavarz
- The Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, South Kensington, London SW7 2AZ, UK;
- Department of Electrical and Electronic Engineering, Imperial College London, South Kensington, London SW7 2AZ, UK
| | - Pelin Duru
- Faculty of Engineering and Natural Science, Sabanci University, Istanbul 34956, Turkey; (P.D.); (C.I.K.)
| | - Cemre Irmak Kayalan
- Faculty of Engineering and Natural Science, Sabanci University, Istanbul 34956, Turkey; (P.D.); (C.I.K.)
| | - İzzet Kale
- Applied DSP and VLSI Research Group, Department of Computer Science and Engineering, University of Westminster, London W1W 6UW, UK;
| | - Mustafa Kemal Bayazit
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla, Istanbul 34956, Turkey
- Faculty of Engineering and Natural Science, Sabanci University, Istanbul 34956, Turkey; (P.D.); (C.I.K.)
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Sambasevam KP, Sateria SF, Baharin SNA, Azman NJ, Ahmad Wakid S, Shahabuddin S. An optimization of fungal chitin grafted polyaniline for ammonia gas detection via Box Behnken design. Int J Biol Macromol 2023; 238:124079. [PMID: 36934823 DOI: 10.1016/j.ijbiomac.2023.124079] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 03/03/2023] [Accepted: 03/14/2023] [Indexed: 03/19/2023]
Abstract
In this work, chitin (Ch) was chemically extracted from wild mushrooms and then grafted to polyaniline (PANI) to form a composite (Ch-g-PANI) to detect ammonia (NH3) gas. The Ch-g-PANI was comprehensively characterized using Scanning electron microscopy (SEM), elemental mapping, thermogravimetric analysis (TGA), and Fourier transform infrared spectroscopy (FTIR) and UV-Vis spectroscopy. The NH3 gas detection optimization was evaluated using Box-Behnken Design. Typically, physical factors such as (A)film layer, (B)loading %, and (C)contact time were investigated and validated through the analysis of variance (ANOVA). The ANOVA revealed that dual interactions between (A)film layer - (C)contact time, and (B)loading % - (C)contact time are among the significant factors. By considering these significant interactions, the highest sensitivity was obtained when (A)film layer (3), (B)loading (5 %), and (C)contact time (10 min) in NH3 gas detection. Then, the optimized Ch-g-PANI was tested in the linear range of NH3 gas concentration from 10 to 50 ppm, which resulted in a linear calibration curve with R2 = 0.994 and a detection limit of 15.03 ppm. Sensor performances showed that Ch-g-PANI films possess high selectivity for NH3 gas among the common interfering gases and the film can be reused for up to 6 cycles. Therefore, the new mushroom-sourced Ch-g-PANI is an inexpensive and economical sensor in the NH3 gas sensor field.
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Affiliation(s)
- Kavirajaa Pandian Sambasevam
- Advanced Materials for Environmental Remediation (AMER), Faculty of Applied Sciences, Universiti Teknologi MARA, Cawangan Negeri Sembilan, Kampus Kuala Pilah, 72000 Kuala Pilah, Negeri Sembilan, Malaysia; Electrochemical Material and Sensor (EMaS) Research Group, Universiti Teknologi MARA, Shah Alam 40450, Selangor, Malaysia.
| | - Syafarina Farisa Sateria
- Advanced Materials for Environmental Remediation (AMER), Faculty of Applied Sciences, Universiti Teknologi MARA, Cawangan Negeri Sembilan, Kampus Kuala Pilah, 72000 Kuala Pilah, Negeri Sembilan, Malaysia
| | - Siti Nor Atika Baharin
- Advanced Materials for Environmental Remediation (AMER), Faculty of Applied Sciences, Universiti Teknologi MARA, Cawangan Negeri Sembilan, Kampus Kuala Pilah, 72000 Kuala Pilah, Negeri Sembilan, Malaysia
| | - Nur Jannah Azman
- Faculty of Applied Sciences, Universiti Teknologi MARA, Cawangan Negeri Sembilan, Kampus Kuala Pilah, 72000 Kuala Pilah, Negeri Sembilan, Malaysia
| | - Sarini Ahmad Wakid
- School of Biology, Faculty of Applied Sciences, Universiti Teknologi MARA, Cawangan Negeri Sembilan, Kampus Kuala Pilah, 72000 Kuala Pilah, Negeri Sembilan, Malaysia
| | - Syed Shahabuddin
- Department of Chemistry, School of EnergyTechnology, Pandit Deendayal Energy University, Raisan, Gandhinagar 382426, Gujarat, India
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6
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Acosta M, Santiago MD, Irvin JA. Electrospun Conducting Polymers: Approaches and Applications. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15248820. [PMID: 36556626 PMCID: PMC9782039 DOI: 10.3390/ma15248820] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/02/2022] [Accepted: 12/03/2022] [Indexed: 05/14/2023]
Abstract
Inherently conductive polymers (CPs) can generally be switched between two or more stable oxidation states, giving rise to changes in properties including conductivity, color, and volume. The ability to prepare CP nanofibers could lead to applications including water purification, sensors, separations, nerve regeneration, wound healing, wearable electronic devices, and flexible energy storage. Electrospinning is a relatively inexpensive, simple process that is used to produce polymer nanofibers from solution. The nanofibers have many desirable qualities including high surface area per unit mass, high porosity, and low weight. Unfortunately, the low molecular weight and rigid rod nature of most CPs cannot yield enough chain entanglement for electrospinning, instead yielding polymer nanoparticles via an electrospraying process. Common workarounds include co-extruding with an insulating carrier polymer, coaxial electrospinning, and coating insulating electrospun polymer nanofibers with CPs. This review explores the benefits and drawbacks of these methods, as well as the use of these materials in sensing, biomedical, electronic, separation, purification, and energy conversion and storage applications.
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Affiliation(s)
- Mariana Acosta
- Materials Science, Engineering and Commercialization Program, Texas State University, San Marcos, TX 78666, USA
| | - Marvin D. Santiago
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA
| | - Jennifer A. Irvin
- Materials Science, Engineering and Commercialization Program, Texas State University, San Marcos, TX 78666, USA
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA
- Correspondence:
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Mesoporous cellulose nanofibers-interlaced PEDOT:PSS hybrids for chemiresistive ammonia detection. Mikrochim Acta 2022; 189:308. [PMID: 35916935 DOI: 10.1007/s00604-022-05414-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 07/08/2022] [Indexed: 10/16/2022]
Abstract
Chemiresistive ammonia (NH3) detection at room temperature is highly desired due to the unique merits of easy miniaturization, low cost, and minor energy consumption especially for portable and wearable electronics. In this regard, poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) has sparked considerable attention due to the benign room-temperature conductivity and environmental stability, but it is undesirably impeded by limited sensitivity and sluggish reaction kinetics. To overcome these, we incorporated cellulose nanofibers (CNF) into PEDOT:PSS via a facile blending. The constituent-optimized composite sensor displayed sensitive (sensitivity of ∼7.46%/ppm in the range of 0.2-3 ppm), selective, and stable NH3 sensing at 25 °C at 55% RH, with higher response and less baseline drift than pure PEDOT:PSS counterparts. Additionally, the response/recovery times (4.9 s/5.2 s toward 1 ppm NH3) ranked the best cases of conducting polymers based NH3 sensors. The humidity involved more than twofold response enhancement indicated a huge potential in exhaled breath monitoring. Furthermore, we observed an excellent flexible NH3-sensing performance with bending-tolerant features. This work provides an alternative strategy for trace NH3 sensing with low power consumption, superfast reaction, and high sensitivity.
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Chang X, Li X, Xue Q. DFT insights into the selective NH 3sensing mechanism of two dimensional ZnTe monolayer. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:374002. [PMID: 35790174 DOI: 10.1088/1361-648x/ac7e9b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
Exploring novel NH3sensing materials is crucial in chemical industries, fertilizing plants and medical fields. Herein, for the first time, the NH3sensing behaviors and sensing mechanisms of two dimensional (2D) ZnTe monolayer are systematically investigated by density functional theory calculations. It is shown that 2D ZnTe monolayer exhibits excellent selective NH3sensing properties. (220) crystal facet of ZnTe possesses a higher NH3adsorption energy (-1.59 eV) and a larger charge transfer (0.195e) than (111) and (311) crystal facets. The positive charges could enhance NH3sensing while the negative charges could reduce NH3sensing. The NH3adsorption strengths are significantly improved in O2atmosphere while it is negligibly affected by N2atmosphere and H2O atmosphere. Moreover, the presence of Zn vacancy and Fe, Co, Ni doping could improve the NH3sensing of ZnTe. Additionally, the experimental results confirms that ZnTe possesses a low detection limit of 0.1 ppm NH3. These theoretical predictions and experimental results present a wide range of possibilities for the further development of ZnTe monolayer in NH3sensing fields.
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Affiliation(s)
- Xiao Chang
- State Key Laboratory of Heavy Oil Processing, School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, Shandong, People's Republic of China
| | - Xiaofang Li
- State Key Laboratory of Heavy Oil Processing, School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, Shandong, People's Republic of China
| | - Qingzhong Xue
- State Key Laboratory of Heavy Oil Processing, School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, Shandong, People's Republic of China
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9
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Shakeel A, Rizwan K, Farooq U, Iqbal S, Altaf AA. Advanced polymeric/inorganic nanohybrids: An integrated platform for gas sensing applications. CHEMOSPHERE 2022; 294:133772. [PMID: 35104552 DOI: 10.1016/j.chemosphere.2022.133772] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 01/23/2022] [Accepted: 01/25/2022] [Indexed: 05/27/2023]
Abstract
Rapid industrial development, vehicles, domestic activities and mishandling of garbage are the main sources of pollutants, which are destroying the atmosphere. There is a need to continuously monitor these pollutants for the safety of the environment and human beings. Conventional instruments for monitoring of toxic gases are expensive, bigger in size and time-consuming. Hybrid materials containing organic and inorganic components are considered potential candidates for diverse applications, including gas sensing. Gas sensors convert the information regarding the analyte into signals. Various polymeric/inorganic nanohybrids have been used for the sensing of toxic gases. Composites of different polymeric materials like polyaniline (PANI), poly (4-styrene sulfonate) (PSS), poly (3,4-ethylene dioxythiophene) (PEDOT), etc. with various metal/metal oxide nanoparticles have been reported as sensing materials for gas sensors because of their unique redox features, conductivity and facile operation at room temperature. Polymeric nanohybrids showed better performance because of the larger surface area of nanohybrids and the synergistic effect between polymeric and inorganic materials. This review article focuses on the recent developments of emerging polymeric/inorganic nanohybrids for sensing various toxic gases including ammonia, hydrogen, nitrogen dioxide, carbon oxides and liquefied petroleum gas. Advantages, disadvantages, operating conditions and prospects of hybrid composites have also been discussed.
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Affiliation(s)
- Ahmad Shakeel
- Faculty of Civil Engineering and Geosciences, Department of Hydraulic Engineering, Delft University of Technology, Stevinweg 1, 2628, CN, Delft, the Netherlands; Department of Chemical, Polymer & Composite Materials Engineering, University of Engineering & Technology, Lahore, New Campus, 54890, Pakistan.
| | - Komal Rizwan
- Department of Chemistry, University of Sahiwal, Sahiwal, 57000, Pakistan.
| | - Ujala Farooq
- Faculty of Aerospace Engineering, Department of Aerospace Structures and Materials, Delft University of Technology, Kluyverweg 1, 2629, HS, Delft, the Netherlands
| | - Shahid Iqbal
- Department of Chemistry, School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), H-12, Islamabad, 46000, Pakistan
| | - Ataf Ali Altaf
- Department of Chemistry, University of Okara, Okara, 56300, Pakistan
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Yang M, Au C, Deng G, Mathur S, Huang Q, Luo X, Xie G, Tai H, Jiang Y, Chen C, Cui Z, Liu X, He C, Su Y, Chen J. NiWO 4 Microflowers on Multi-Walled Carbon Nanotubes for High-Performance NH 3 Detection. ACS APPLIED MATERIALS & INTERFACES 2021; 13:52850-52860. [PMID: 34714039 DOI: 10.1021/acsami.1c10805] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
NiWO4 microflowers with a large surface area up to 79.77 m2·g-1 are synthesized in situ via a facile coprecipitation method. The NiWO4 microflowers are further decorated with multi-walled carbon nanotubes (MWCNTs) and assembled to form composites for NH3 detection. The as-fabricated composite exhibits an excellent NH3 sensing response/recovery time (53 s/177 s) at a temperature of 460 °C, which is a 10-fold enhancement compared to that of pristine NiWO4. It also demonstrates a low detection limit of 50 ppm; the improved sensing performance is attributed to the porous structure of the material, the large specific surface area, and the p-n heterojunction formed between the MWNTs and NiWO4. The gas sensitivity of the sensor based on daisy-like NiWO4/MWCNTs shows that the sensor based on 10 mol % (MWN10) has the best gas sensitivity, with a sensitivity of 13.07 to 50 ppm NH3 at room temperature and a detection lower limit of 20 ppm. NH3, CO2, NO2, SO2, CO, and CH4 are used as typical target gases to construct the NiWO4/MWCNTs gas-sensitive material and study the research method combining density functional theory calculations and experiments. By calculating the morphology and structure of the gas-sensitive material NiWO4(110), the MWCNT load samples, the vacancy defects, and the influence law and internal mechanism of gas sensitivity were described.
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Affiliation(s)
- Min Yang
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu 611130, China
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Christian Au
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Guowei Deng
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu 611130, China
| | - Shaurya Mathur
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Qiuping Huang
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu 611130, China
| | - Xiaolan Luo
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu 611130, China
| | - Guangzhong Xie
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Huiling Tai
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Yadong Jiang
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Chunxu Chen
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Zheng Cui
- State Key Lab of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Xiaoyang Liu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
| | - Chaozheng He
- Institute of Environmental and Energy Catalysis, School of Materials Science and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China
| | - Yuanjie Su
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Jun Chen
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90095, United States
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