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Yang S, Chen R, Huang F, Wang W, Zhitomirsky I. 3D Binder-Free Mo@CoO Electrodes Directly Manufactured in One Step via Electric Discharge Machining for In-Plane Microsupercapacitor Application. MICROMACHINES 2024; 15:1294. [PMID: 39597106 PMCID: PMC11596131 DOI: 10.3390/mi15111294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2024] [Revised: 10/18/2024] [Accepted: 10/21/2024] [Indexed: 11/29/2024]
Abstract
Cobalt oxide-based in-plane microsupercapacitors (IPMSCs) stand out as a favorable choice for various applications in energy sources for the Internet of Things (IoT) and other microelectronic devices due to their abundant natural resources and high theoretical specific capacitance. However, the low electronic conductivity of cobalt oxide greatly hinders its further application in energy storage devices. Herein, a new manufacturing method of electric discharging machining (EDM), which is simple, safe, efficient, and environment-friendly, has been developed for synthesizing Mo-doped and oxygen-vacancy-enriched Co-CoO (Mo@Co-CoO) integrated microelectrodes for efficiently constructing Mo@Co-CoO IPMSCs with customized structures in a single step for the first time. The Mo@Co-CoO IPMSCs with three loops (IPMSCs3) exhibited a maximum areal capacitance of 30.4 mF cm-2 at 2 mV s-1. Moreover, the Mo@Co-CoO IPMSCs3 showed good capacitive behavior at a super-high scanning rate of 100 V s-1, which is around 500-1000 times higher than most reported CoO-based electrodes. It is important to note that the IPMSCs were fabricated using a one-step EDM process without any assistance of other material processing techniques, toxic chemicals, low conductivity binders, exceptional current collectors, and conductive fillers. This novel fabrication method developed in this research opens a new avenue to simplify material synthesis, providing a novel way for realizing intelligent, digital, and green manufacturing of various metal oxide materials, microelectrodes, and microdevices.
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Affiliation(s)
- Shunqi Yang
- College of Informatics, Huazhong Agricultural University, Wuhan 430070, China;
| | - Ri Chen
- Department of Mechatronic Engineering, Guangdong Polytechnic Normal University, Guangzhou 510665, China
| | - Fu Huang
- Department of Mechatronic Engineering, Guangdong Polytechnic Normal University, Guangzhou 510665, China
| | - Wenxia Wang
- Department of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China;
| | - Igor Zhitomirsky
- School of Materials Science and Engineering, McMaster University, Hamilton, ON L8S 4L7, Canada;
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2
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Chang S, Liu L, Mu C, Wen F, Xiang J, Zhai K, Wang B, Wu L, Nie A, Shu Y, Xue T, Liu Z. An Ultrasensitive SPR biosensor for RNA detection based on robust GeP 5 nanosheets. J Colloid Interface Sci 2023; 651:938-947. [PMID: 37579668 DOI: 10.1016/j.jcis.2023.08.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 07/20/2023] [Accepted: 08/10/2023] [Indexed: 08/16/2023]
Abstract
Ultrasensitive and rapid detection of biomarkers is among the upmost priorities in promoting healthcare advancements. Improved sensitivity of photonic sensors based on two-dimensional (2D) materials have brought exciting prospects for achieving real-time and label-free biosensing at dilute target concentrations. Here, we report a high-sensitivity surface plasmon resonance (SPR) RNA sensor using metallic 2D GeP5 nanosheets as the sensing material. Theoretical evaluations revealed that the presence of GeP5 nanosheets can greatly enhance the plasmonic electric field of the Au film thereby boosting sensing sensitivity, and that optimal sensitivity (146° RIU-1) can be achieved with 3-nm-thick GeP5. By functionalizing GeP5 nanosheets with specific cDNA probes, detection of SARS-CoV-2 RNA sequences were achieved using the GeP5-based SPR sensor, with high sensitivity down to a detection limit of 10 aM and excellent selectivity. This work demonstrates the immense potential of GeP5-based SPR sensors for advanced biosensing applications and paves the way for utilizing GeP5 nanosheets in novel sensor devices.
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Affiliation(s)
- Shaopeng Chang
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Lixuan Liu
- Institute of Quantum Materials and Devices, School of Electronics and Information Engineering, Tiangong University, Tianjin 300387, China.
| | - Congpu Mu
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Fusheng Wen
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Jianyong Xiang
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Kun Zhai
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Bochong Wang
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Leiming Wu
- Guangdong Provincial Key Laboratory of Information Photonics Technology, School of Information Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Anmin Nie
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Yu Shu
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China.
| | - Tianyu Xue
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China.
| | - Zhongyuan Liu
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
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3
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Shams M, Mansukhani N, Hersam MC, Bouchard D, Chowdhury I. Environmentally sustainable implementations of two-dimensional nanomaterials. Front Chem 2023; 11:1132233. [PMID: 36936535 PMCID: PMC10020365 DOI: 10.3389/fchem.2023.1132233] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 02/14/2023] [Indexed: 03/06/2023] Open
Abstract
Rapid advancement in nanotechnology has led to the development of a myriad of useful nanomaterials that have novel characteristics resulting from their small size and engineered properties. In particular, two-dimensional (2D) materials have become a major focus in material science and chemistry research worldwide with substantial efforts centered on their synthesis, property characterization, and technological, and environmental applications. Environmental applications of these nanomaterials include but are not limited to adsorbents for wastewater and drinking water treatment, membranes for desalination, and coating materials for filtration. However, it is also important to address the environmental interactions and implications of these nanomaterials in order to develop strategies that minimize their environmental and public health risks. Towards this end, this review covers the most recent literature on the environmental implementations of emerging 2D nanomaterials, thereby providing insights into the future of this fast-evolving field including strategies for ensuring sustainable development of 2D nanomaterials.
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Affiliation(s)
- Mehnaz Shams
- Civil and Environmental Engineering, Washington State University, Pullman, WA, United States
| | - Nikhita Mansukhani
- Departments of Materials Science and Engineering, Chemistry and Medicine, Northwestern University, Evanston, IL, United States
| | - Mark C. Hersam
- Departments of Materials Science and Engineering, Chemistry and Medicine, Northwestern University, Evanston, IL, United States
| | - Dermont Bouchard
- National Exposure Research Laboratory, United States Environmental Protection Agency, Athens, GA, United States
| | - Indranil Chowdhury
- Civil and Environmental Engineering, Washington State University, Pullman, WA, United States
- *Correspondence: Indranil Chowdhury,
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4
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Yi H, Zhang X, Ai Z, Song S, An Q. Hollow Nanowire Constructed by NiCo Doped RuO 2 Nanoparticles for Robust Hydrogen Evolution at High-Current-Density. CHEMSUSCHEM 2022; 15:e202201532. [PMID: 35999180 DOI: 10.1002/cssc.202201532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 08/23/2022] [Indexed: 06/15/2023]
Abstract
Large-current-density electrocatalytic water splitting is essential for industrial hydrogen production, but it is currently hindered by lacking active and robust hydrogen evolution reaction (HER) catalysts. Herein, a novel electrode of hollow nanowire arrays constructed by NiCo modified RuO2 nanoparticles on Ni foam (NiCo@RuO2 HNAs/NF) for high-performance HER was reported. Such efficient electrode was fabricated by ion exchange with NF-supported Ni modified cobalt carbonate hydroxide nanowire arrays template (Ni@CoCH NAs/NF). The formed NiCo@RuO2 HNAs/NF only needed overpotentials of 148.5 and 236.1 mV to deliver 500 and 1000 mA cm-2 , respectively, along with excellent stability at the high-current-density for 300 h. Such remarkable HER performance was mainly attributed to the hollow structure with high surface area, hydrophilic feature, and NiCo@RuO2 with optimized hydrogen evolution kinetics. After coupling with anodic Ni@CoCH NAs/NF, our electrolyzer outperformed Pt/C-IrO2 and most other Ru-based electrolyzers. This work provides a promising Pt alternative catalyst for profitable H2 production.
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Affiliation(s)
- Hao Yi
- School of Artificial Intelligence, Wuchang University of Technology, Wuhan, Hubei Province, 430223, P. R. China
| | - Xian Zhang
- School of Resources and Environmental Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan, Hubei, 430070, P. R. China
| | - Zhong Ai
- School of Resources and Environmental Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan, Hubei, 430070, P. R. China
| | - Shaoxian Song
- School of Resources and Environmental Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan, Hubei, 430070, P. R. China
| | - Qing An
- School of Artificial Intelligence, Wuchang University of Technology, Wuhan, Hubei Province, 430223, P. R. China
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Zhao J, Ma Z, Qiao C, Fan Y, Qin X, Shao G. Spectroscopic Monitoring of the Electrode Process of MnO 2@rGO Nanospheres and Its Application in High-Performance Flexible Micro-Supercapacitors. ACS APPLIED MATERIALS & INTERFACES 2022; 14:34686-34696. [PMID: 35876499 DOI: 10.1021/acsami.2c06850] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Structural instability is a major obstacle to realizing the high performance of a MnO2-based pseudocapacitor material. Understanding its structure transformation in the process of electrochemical reaction, therefore, plays an important role in the efficient enhancement of rate capacity and stability. Herein, a stable MnO2@rGO core-shell nanosphere is first synthesized by a liquid-liquid interface deposition further combined with the electrostatic self-assembly method. The structural transformation process of the MnO2@rGO electrode is monitored by ex situ Raman and X-ray diffraction spectroscopy during the charging-discharging process. It is found in the first discharging process that layered-MnO2 transforms into the spinel-Mn3O4 phase with K+ ion intercalation. From the second charging, the spinel-Mn3O4 phase is gradually adjusted to a more stable λ-MnO2 with a three-dimensional tunnel structure, finally realizing the reversible intercalation/deintercalation of K+ ions in the λ-MnO2 tunnel structure during subsequent cycling, which can be attributed to the presence of oxygen vacancies formed by the lengthening of the Mn-O bond and losing oxygen in the MnO6 octahedral unit with K+ ion intercalation/deintercalation. Meanwhile, the MnO2@rGO electrode demonstrates a high specific capacitance of 378 F g-1 at 1 A g-1 and excellent cycling stability with a capacitance retention of up to 89.5% after 10 000 cycles at 10 A g-1. Furthermore, the assembled symmetric micro-supercapacitor delivers a high areal energy density of 1.01 μWh cm-2, superior cycling stability with no significant capacity decay after 8700 cycles, and a capacity retention rate of almost 100% after 2000 bending cycles, showing great mechanical flexibility and practicability.
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Affiliation(s)
- Jinghao Zhao
- Hebei Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Zhipeng Ma
- Hebei Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Chunting Qiao
- Hebei Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Yuqian Fan
- Hebei Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Xiujuan Qin
- Hebei Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Guangjie Shao
- Hebei Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
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Sahoo D, Shakya J, Choudhury S, Roy SS, Devi L, Singh B, Ghosh S, Kaviraj B. High-Performance MnO 2 Nanowire/MoS 2 Nanosheet Composite for a Symmetrical Solid-State Supercapacitor. ACS OMEGA 2022; 7:16895-16905. [PMID: 35647444 PMCID: PMC9134226 DOI: 10.1021/acsomega.1c06852] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Accepted: 04/28/2022] [Indexed: 05/03/2023]
Abstract
To improve the production rate of MoS2 nanosheets as an excellent supercapacitor (SC) material and enhance the performance of the MoS2-based solid-state SC, a liquid phase exfoliation method is used to prepare MoS2 nanosheets on a large scale. Then, the MnO2 nanowire sample is synthesized by a one-step hydrothermal method to make a composite with the as-synthesized MoS2 nanosheets to achieve a better performance of the solid-state SC. The interaction between the MoS2 nanosheets and MnO2 nanowires produces a synergistic effect, resulting in a decent energy storage performance. For practical applications, all-solid-state SC devices are fabricated with different molar ratios of MoS2 nanosheets and MnO2 nanowires. From the experimental results, it can be seen that the synthesized nanocomposite with a 1:4 M ratio of MoS2 nanosheets and MnO2 nanowires exhibits a high Brunauer-Emmett-Teller surface area (∼118 m2/g), optimum pore size distribution, a specific capacitance value of 212 F/g at 0.8 A/g, an energy density of 29.5 W h/kg, and a power density of 1316 W/kg. Besides, cyclic charging-discharging and retention tests manifest significant cycling stability with 84.1% capacitive retention after completing 5000 rapid charge-discharge cycles. It is believed that this unique, symmetric, lightweight, solid-state SC device may help accomplish a scalable approach toward powering forthcoming portable energy storage applications.
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Affiliation(s)
- Dhirendra Sahoo
- Department
of Physics, School of Natural Sciences, Shiv Nadar University, NH-91, Greater Noida, Gautam Budha Nagar, Uttar Pradesh 201314, India
| | - Jyoti Shakya
- Department
of Physics, Indian Institute of Science Bangalore 560012, India
| | - Sudipta Choudhury
- Department
of Physics, School of Natural Sciences, Shiv Nadar University, NH-91, Greater Noida, Gautam Budha Nagar, Uttar Pradesh 201314, India
| | - Susanta Sinha Roy
- Department
of Physics, School of Natural Sciences, Shiv Nadar University, NH-91, Greater Noida, Gautam Budha Nagar, Uttar Pradesh 201314, India
| | - Lalita Devi
- School
of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Budhi Singh
- School
of Mechanical Engineering, Sungkyunkwan
University, Suwon 03063, South Korea
| | - Subhasis Ghosh
- School
of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Bhaskar Kaviraj
- Department
of Physics, School of Natural Sciences, Shiv Nadar University, NH-91, Greater Noida, Gautam Budha Nagar, Uttar Pradesh 201314, India
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