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Yin H, Deng Y, He Z, Xu W, Hou Z, He B, Çaha İ, Cunha J, Karimi M, Yu Z. Strain engineering of Co SANC catalyst toward enhancing the oxygen reduction reaction activity. J Colloid Interface Sci 2024; 678:447-457. [PMID: 39213997 DOI: 10.1016/j.jcis.2024.08.165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2024] [Revised: 08/20/2024] [Accepted: 08/21/2024] [Indexed: 09/04/2024]
Abstract
Developing efficient and cost-effective platinum-group metal-free (PGMF) catalysts for the oxygen reduction reaction (ORR) is crucial for energy conversion and storage devices. Among these catalysts, metal-nitrogen-carbon (MNC) materials, particularly cobalt single-atom catalysts (CoSANC), show promise as ORR electrocatalysts. However, their ORR activity is often hindered by strong hydroxyl (OH) adsorption on the Co sites. While the impact of strain engineering on MNC electrocatalysts has been minimally explored, recent studies suggest its potential to enhance catalytic performance and optimize intrinsic activity in traditional bulk catalysts. In this context, we investigate the effect of surface strain on CoSANC for ORR activity and correlate substrate-strain-induced geometric distortions with catalytic activity using experimental and theoretical methods. The findings suggest that the d-band center gap of spin states (Δεd) may be a preferred descriptor for predicting strain-dependent ORR performance in MNC catalysts. Leveraging CoSANC moiety placed on a substrate with an average size of 1.0 μm, we achieve performance comparable to that of commercial Pt/C catalysts when used as a cathode catalyst in zinc-air batteries. This investigation unveils the structure-function relationship of MNC electrocatalysts regarding strain engineering and provides valuable insights for future ORR activity design and enhancement.
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Affiliation(s)
- Hong Yin
- Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials, School of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China; International Iberian Nanotechnology Laboratory (INL), Braga 4715-330, Portugal.
| | - Yiqiong Deng
- Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials, School of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Zhe He
- Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials, School of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Wenyuan Xu
- Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials, School of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Zhaohui Hou
- Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials, School of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Binhong He
- Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials, School of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - İhsan Çaha
- International Iberian Nanotechnology Laboratory (INL), Braga 4715-330, Portugal
| | - Joao Cunha
- International Iberian Nanotechnology Laboratory (INL), Braga 4715-330, Portugal
| | - Maryam Karimi
- International Iberian Nanotechnology Laboratory (INL), Braga 4715-330, Portugal
| | - Zhipeng Yu
- International Iberian Nanotechnology Laboratory (INL), Braga 4715-330, Portugal.
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2
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Huang J, Zhou H, Zou Y, Liu H, Chen Q. Ultrasensitive detection of dopamine using Au microelectrodes integrated with mesoporous silica thin films. Analyst 2024; 149:4208-4212. [PMID: 38856368 DOI: 10.1039/d4an00398e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
An electrochemical method was developed for ultrasensitive and selective detection of dopamine in human serum using mesoporous silica thin film modified gold microelectrodes. Vertically aligned mesoporous silica thin films were deposited onto Au microelectrodes by electrochemically assisted self-assembly (EASA). The mesochannels have uniform pore sizes of 2.1 nm in diameter and a negatively charged wall surface. Cyclic voltammetry reveals effective charge permselectivity through the negatively charged mesoporous channels. By using differential pulse voltammetry, the mesoporous silica thin film modified Au microelectrode can be employed for the ultrasensitive detection of dopamine with a detection limit as low as 0.084 μM. In addition, thanks to the electrostatic and steric effects of the silica mesochannels, excellent anti-interference and anti-fouling properties of the electrochemical sensors are demonstrated.
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Affiliation(s)
- Juan Huang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China.
| | - Huaxu Zhou
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China.
| | - Yanqi Zou
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China.
| | - Huiqing Liu
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China.
| | - Qianjin Chen
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China.
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3
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Johnson D, Li HH, Kimler BF. Dosimetry: Was and Is an Absolute Requirement for Quality Radiation Research. Radiat Res 2024; 202:102-129. [PMID: 38954476 DOI: 10.1667/rade-24-00107.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 05/09/2024] [Indexed: 07/04/2024]
Abstract
This review aims to trace the evolution of dosimetry, highlight its significance in the advancement of radiation research, and identify the current trends and methodologies in the field. Key historical milestones, starting with the first publications in the journal in 1954, will be synthesized before addressing contemporary practices in radiation medicine and radiobiological investigation. Finally, possibilities for future opportunities in dosimetry will be offered. The overarching goal is to emphasize the indispensability of accurate and reproducible dosimetry in enhancing the quality of radiation research and practical applications of ionizing radiation.
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Affiliation(s)
- Daniel Johnson
- Department of Radiation Oncology, University of Kansas Medical Center, Kansas City, Kansas 66160-7321
| | - H Harold Li
- Department of Radiation Oncology, University of Kansas Medical Center, Kansas City, Kansas 66160-7321
| | - Bruce F Kimler
- Department of Radiation Oncology, University of Kansas Medical Center, Kansas City, Kansas 66160-7321
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Materna Mikmeková E, Materna J, Konvalina I, Mikmeková Š, Müllerová I, Asefa T. A soft touch with electron beams: Digging out structural information of nanomaterials with advanced scanning low energy electron microscopy coupled with deep learning. Ultramicroscopy 2024; 262:113965. [PMID: 38640578 DOI: 10.1016/j.ultramic.2024.113965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 03/04/2024] [Accepted: 04/09/2024] [Indexed: 04/21/2024]
Abstract
Nanostructured materials continue to find applications in various electronic and sensing devices, chromatography, separations, drug delivery, renewable energy, and catalysis. While major advancements on the synthesis and characterization of these materials have already been made, getting information about their structures at sub-nanometer resolution remains challenging. It is also unfortunate to find that many emerging or already available powerful analytical methods take time to be fully adopted for characterization of various nanomaterials. The scanning low energy electron microscopy (SLEEM) is a good example to this. In this report, we show how clearer structural and surface information at nanoscale can be obtained by SLEEM, coupled with deep learning. The method is demonstrated using Au nanoparticles-loaded mesoporous silica as a model system. Moreover, unlike conventional scanning electron microscopy (SEM), SLEEM does not require the samples to be coated with conductive films for analysis; thus, not only it is convenient to use but it also does not give artifacts. The results further reveal that SLEEM and deep learning can serve as great tools to analyze materials at nanoscale well. The biggest advantage of the presented method is its availability, as most modern SEMs are able to operate at low energies and deep learning methods are already being widely used in many fields.
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Affiliation(s)
- Eliška Materna Mikmeková
- Institute of Scientific Instruments of the Czech Academy of Sciences, Královopolská 147, 612 64 Brno, Czech Republic
| | - Jiří Materna
- Machine Learning College, s.r.o., Chrlická 787/56, 620 00 Brno, Czech Republic
| | - Ivo Konvalina
- Institute of Scientific Instruments of the Czech Academy of Sciences, Královopolská 147, 612 64 Brno, Czech Republic.
| | - Šárka Mikmeková
- Institute of Scientific Instruments of the Czech Academy of Sciences, Královopolská 147, 612 64 Brno, Czech Republic
| | - Ilona Müllerová
- Institute of Scientific Instruments of the Czech Academy of Sciences, Královopolská 147, 612 64 Brno, Czech Republic
| | - Tewodros Asefa
- Department of Chemistry & Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, USA; Department of Chemical & Biochemical Engineering, Rutgers, The State University of New, Jersey 98 Brett Road, Piscataway, New Jersey 08854, USA
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5
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Yang Y, Zhou S, Lv Z, Hung CT, Zhao Z, Zhao T, Chao D, Kong B, Zhao D. Unipolar Ionic Diode Nanofluidic Membranes Enabled by Stepped Mesochannels for Enhanced Salinity Gradient Energy Harvesting. J Am Chem Soc 2024; 146:19580-19589. [PMID: 38977375 DOI: 10.1021/jacs.4c06949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Developing ionic diode membranes featuring asymmetric structures is in high demand for salinity gradient energy harvesting. These membranes offer benefits in mitigating ion concentration polarization, thereby promoting ion permeability. However, most reported works focus on the role of heterogeneous charge-based bipolar ionic diode membranes for ion concentration polarization suppression, with comparatively less attention given to maintaining ion selectivity. Herein, unipolar ionic diode nanofluidic mesoporous silica membranes featuring stepped mesochannels were developed via a micellar sequential oriented interfacial self-assembly strategy as a salinity gradient energy harvester. Due to the asymmetric mesochannels and unipolar structure (both sides carry negative charge), the ionic diode membranes exhibit a strong rectification ratio of ∼15.91 to facilitate unidirectional ion transport while maintaining excellent cation selectivity (cation transfer number of ∼0.85). Besides, the vertically aligned mesochannels significantly reduce ion transport resistance, generating a high ionic flux. Consequently, the unipolar ionic diode nanofluidic membranes demonstrate a power output of 5.88 W/m2 between artificial sea and river water. The unipolar feature gives notable enhancements of 296% and 144% in power output compared to the symmetric membrane and bipolar ionic diode membrane, respectively. This work opens up new routes for designing ionic diode membranes for salinity gradient energy harvesting.
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Affiliation(s)
- Yi Yang
- Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Shan Zhou
- Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
- College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Zirui Lv
- Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Chin-Te Hung
- Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Zaiwang Zhao
- College of Energy Materials and Chemistry, College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010070, P. R. China
| | - Tiancong Zhao
- Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Dongliang Chao
- Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Biao Kong
- Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Dongyuan Zhao
- Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
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6
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Duan L, Zhang C, Xi F, Su D, Zhang W. Direct and Sensitive Electrochemical Determination of Total Antioxidant Capacity in Foods Using Nanochannel-Based Enrichment of Redox Probes. Molecules 2024; 29:2423. [PMID: 38893298 PMCID: PMC11173714 DOI: 10.3390/molecules29112423] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 05/06/2024] [Accepted: 05/17/2024] [Indexed: 06/21/2024] Open
Abstract
Simple and sensitive determination of total antioxidant capacity (TAC) in food samples is highly desirable. In this work, an electrochemical platform was established based on a silica nanochannel film (SNF)-modified electrode, facilitating fast and highly sensitive analysis of TAC in colored food samples. SNF was grown on low-cost and readily available tin indium oxide (ITO) electrode. Fe3+-phenanthroline complex-Fe(III)(phen)3 was applied as the probe, and underwent chemical reduction to form Fe2+-phenanthroline complex-Fe(II)(phen)3 in the presence of antioxidants. Utilizing an oxidative voltage of +1 V, chronoamperometry was employed to measure the current generated by the electrochemical oxidation of Fe(II)(phen)3, allowing for the assessment of antioxidants. As the negatively charged SNF displayed remarkable enrichment towards positively charged Fe(II)(phen)3, the sensitivity of detection can be significantly improved. When Trolox was employed as the standard antioxidant, the electrochemical sensor demonstrated a linear detection range from 0.01 μM to 1 μM and from 1 μM to 1000 μM, with a limit of detection (LOD) of 3.9 nM. The detection performance is better that that of the conventional colorimetric method with a linear de range from 1 μM to 40 μM. Owing to the anti-interfering ability of nanochannels, direct determination of TAC in colored samples including coffee, tea, and edible oils was realized.
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Affiliation(s)
- Lixia Duan
- Guangxi Medical University Cancer Hospital, Guangxi Medical University, Nanning 530021, China; (L.D.); (D.S.)
| | - Chaoyan Zhang
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China;
| | - Fengna Xi
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China;
| | - Danke Su
- Guangxi Medical University Cancer Hospital, Guangxi Medical University, Nanning 530021, China; (L.D.); (D.S.)
| | - Wenhao Zhang
- Guangxi Medical University Cancer Hospital, Guangxi Medical University, Nanning 530021, China; (L.D.); (D.S.)
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7
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Wu Y, Ma L, Wu J, Song M, Wang C, Lu J. High-Surface Area Mesoporous Sc 2O 3 with Abundant Oxygen Vacancies as New and Advanced Electrocatalyst for Electrochemical Biomass Valorization. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2311698. [PMID: 38224594 DOI: 10.1002/adma.202311698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/17/2023] [Indexed: 01/17/2024]
Abstract
Scandium oxide (Sc2O3) is considered as omnipotent "Industrial Ajinomoto" and holds promise in catalytic applications. However, rarely little attention is paid to its electrochemistry. Here, the first nanocasting design of high-surface area Sc2O3 with abundant oxygen vacancies (mesoporous VO-Sc2O3) for efficient electrochemical biomass valorization is reported. In the case of the electro-oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA), quantitative HMF conversion, high yield, and high faradic efficiency of FDCA via the hydroxymethylfurancarboxylic acid pathway are achieved by this advanced electrocatalyst. The beneficial effect of the VO on the electrocatalytic performance of the mesoporous VO-Sc2O3 is revealed by the enhanced adsorption of reactants and the reduced energy barrier in the electrochemical process. The concerted design, in situ and ex situ experimental studies and theoretical calculations shown in this work should shed light on the rational elaboration of advanced electrocatalysts, and contribute to the establishment of a circular carbon economy since the bio-plastic monomer and green hydrogen are efficiently synthesized.
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Affiliation(s)
- Yufeng Wu
- Institute of Circular Economy, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Liyao Ma
- Institute of Circular Economy, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Junxiu Wu
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Minwei Song
- Institute of Circular Economy, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Changlong Wang
- Institute of Circular Economy, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Jun Lu
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
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8
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Moehl GE, Fitch SD, Cicvarić K, Han Y, Huang R, Rawle J, Shao L, Beanland R, Bartlett PN, Denuault G, Hector AL. Film before aggregates: an operando GISAXS study on electrochemically assisted surfactant assembly. NANOSCALE 2024; 16:4197-4204. [PMID: 38324330 DOI: 10.1039/d3nr05126a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
The process of electrochemically assisted surfactant assembly was followed in real time by grazing incidence small angle X-ray scattering with the aim to deconvolute the formation of mesoporous silica film and unwanted porous particles. The X-ray technique proved to be useful for the characterisation of this process, as it takes place at a very dynamic, solid/liquid interface. This paper shows the electrochemically driven onset and evolution of silica/surfactant structures. Additional control experiments indicate the formation of vertically aligned structures without the use of an electric field, although it seems to be beneficial for increased pore ordering.
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Affiliation(s)
- Gilles E Moehl
- School of Chemistry, University of Southampton, SO17 1BJ, UK.
| | - Samuel D Fitch
- School of Chemistry, University of Southampton, SO17 1BJ, UK.
| | - Katarina Cicvarić
- School of Electronics and Computer Science, University of Southampton, SO17 1BJ, UK
| | - Yisong Han
- Department of Physics, University of Warwick, CV4 7AL, UK
| | - Ruomeng Huang
- School of Electronics and Computer Science, University of Southampton, SO17 1BJ, UK
| | - Jonathan Rawle
- Diamond Light Source Ltd, Harwell Science & Innovation Campus, Didcot, OX11 0DE, UK
| | - Li Shao
- School of Chemistry, University of Southampton, SO17 1BJ, UK.
| | | | | | - Guy Denuault
- School of Chemistry, University of Southampton, SO17 1BJ, UK.
| | - Andrew L Hector
- School of Chemistry, University of Southampton, SO17 1BJ, UK.
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9
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Tananaiko O, Walcarius A. Composite Silica-Based Films as Platforms for Electrochemical Sensors. CHEM REC 2024; 24:e202300194. [PMID: 37737456 DOI: 10.1002/tcr.202300194] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/29/2023] [Indexed: 09/23/2023]
Abstract
Sol-gel-derived silica thin films generated onto electrode surfaces in the form of organic-inorganic hybrid coatings or other composite layers have found tremendous interest for being used as platforms for the development of electrochemical sensors and biosensors. After a brief description of the strategies applied to prepare such materials, and their interest as electrode modifier, this review will summarize the major advances made so far with composite silica-based films in electroanalysis. It will primarily focus on electrochemical sensors involving both non-ordered composite films and vertically oriented mesoporous membranes, the biosensors exploiting the concept of sol-gel bioencapsulation on electrode, the spectroelectrochemical sensors, and some others.
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Affiliation(s)
- Oksana Tananaiko
- Department of Analytical Chemistry, National Taras Shevchenko University of Kyiv, Volodymyrska Str., 64, Kyiv, Ukraine, 01601
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10
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Feng G, Mao J, Sun T, Li G, Li S, Dong X, Song Y, Wei W, Chen W. Nitrogen-Doped Titanium Dioxide for Selective Photocatalytic Oxidation of Methane to Oxygenates. ACS APPLIED MATERIALS & INTERFACES 2024; 16:4600-4605. [PMID: 38242173 DOI: 10.1021/acsami.3c15614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2024]
Abstract
Photocatalytic conversion of methane (CH4) to value-added chemicals using H2O as the oxidant under mild conditions is a desired sustainable pathway for synthesizing commodity chemicals. However, controlling product selectivity while maintaining high product yields is greatly challenging. Herein, we develop a highly efficient strategy, based on the precise control of the types of nitrogen dopants, and the design of photocatalysts, to achieve high selectivity and productivity of oxygenates via CH4 photocatalytic conversion. The primary product (methanol) is obtained in a high yield of 159.8 μmol·g-1·h-1 and 47.7% selectivity, and the selectivity of oxygenate compounds reached 92.5%. The unique hollow porous structure and substituted nitrogen sites of nitrogen-doped TiO2 synergistically promote its photo-oxidation performance. Furthermore, in situ attenuated total reflectance Fourier transform infrared spectroscopy provides direct evidence of the key intermediates and their evolution for producing methanol and multicarbon oxygenates. This study provides insights into the mechanism of photocatalytic CH4 conversion.
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Affiliation(s)
- Guanghui Feng
- Low-Carbon Conversion Science and Engineering Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Jianing Mao
- University of Chinese Academy of Sciences, Beijing 100049, China
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Tong Sun
- Low-Carbon Conversion Science and Engineering Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Guihua Li
- Low-Carbon Conversion Science and Engineering Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Shoujie Li
- Low-Carbon Conversion Science and Engineering Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Xiao Dong
- Low-Carbon Conversion Science and Engineering Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Yanfang Song
- Low-Carbon Conversion Science and Engineering Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Wei
- Low-Carbon Conversion Science and Engineering Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Chen
- Low-Carbon Conversion Science and Engineering Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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11
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Yin S, Liu L, Li J, Wu H, Lv Z, He Y, Zhang JY, Zhang P, Zhao Z, Zhao D, Lan K. Mesoporous TiO 2 Single-Crystal Particles from Controlled Crystallization-Driven Mono-Micelle Assembly as an Efficient Photocatalyst. J Am Chem Soc 2024; 146:1701-1709. [PMID: 38157406 DOI: 10.1021/jacs.3c12727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Mesoporous materials with crystalline frameworks have been widely explored in many fields due to their unique structure and crystalline feature, but accurate manipulations over crystalline scaffolds, mainly composed of uncontrolled polymorphs, are still lacking. Herein, we explored a controlled crystallization-driven monomicelle assembly approach to construct a type of uniform mesoporous TiO2 particles with atomically aligned single-crystal frameworks. The resultant mesoporous TiO2 single-crystal particles possess an angular shape ∼80 nm in diameter, good mesoporosity (a high surface area of 112 m2 g-1 and a mean pore size at 8.3 nm), and highly oriented anatase frameworks. By adjusting the evaporation rate during assembly, such a facile solution-processed strategy further enables the regulation of the particle size and mesopore size without the destruction of the oriented crystallites. Such a combination of ordered mesoporosity and crystalline orientation provides both effective mass and charge transportation, leading to a significant increase in the hydrogen generation rate. A maximum hydrogen evolution rate of 12.5 mmol g-1 h-1 can be realized, along with great stability under solar light. Our study is envisaged to extend the possibility of mesoporous single crystal growth to a range of functional ceramics and semiconductors toward advanced applications.
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Affiliation(s)
- Sixing Yin
- College of Chemistry and Materials, Department of Chemistry, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P. R. China
| | - Lu Liu
- College of Chemistry and Materials, Department of Chemistry, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P. R. China
| | - Jialong Li
- College of Energy Materials and Chemistry, College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, P. R. China
| | - Hongfei Wu
- College of Chemistry and Materials, Department of Chemistry, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P. R. China
| | - Zirui Lv
- College of Chemistry and Materials, Department of Chemistry, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P. R. China
| | - Yalin He
- College of Energy Materials and Chemistry, College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, P. R. China
| | - Jun-Ye Zhang
- College of Chemistry and Materials, Department of Chemistry, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P. R. China
| | - Pengfei Zhang
- College of Chemistry and Materials, Department of Chemistry, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P. R. China
- College of Energy Materials and Chemistry, College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, P. R. China
| | - Zaiwang Zhao
- College of Energy Materials and Chemistry, College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, P. R. China
| | - Dongyuan Zhao
- College of Chemistry and Materials, Department of Chemistry, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P. R. China
- College of Energy Materials and Chemistry, College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, P. R. China
| | - Kun Lan
- College of Energy Materials and Chemistry, College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, P. R. China
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12
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Despot L, Hinduja C, Lehn R, Mikolei J, Richter T, Köbschall K, Stanzel M, Berger R, Hussong J, Ceolín M, Andrieu-Brunsen A. Molecular transport and water condensation inside mesopores with wettability step gradients. NANOSCALE ADVANCES 2023; 5:6123-6134. [PMID: 37941961 PMCID: PMC10628989 DOI: 10.1039/d3na00594a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 10/02/2023] [Indexed: 11/10/2023]
Abstract
The wettabilities of nanoscale porous surfaces play important roles in the context of molecular and fluid transport or oil-water separation. The wettability pattern along a nanopore strongly influences fluid distribution throughout the membrane. Mesoporous silica thin films with gradually adjusted wettabilities were fabricated via cocondensation. With consecutive mesoporous layer depositions, double-layer mesoporous silica films with asymmetric or so-called Janus wettability patterns were generated. The effects of these wetting gradients on mass transport, water imbibition, and water vapor condensation were investigated with ellipsometry, cyclic voltammetry (CV), drop friction force instrument (DoFFIs), fluorescence microscopy and interferometry. By increasing the film thickness of the hydrophobic mesoporous silica top layer deposited on a hydrophilic mesoporous silica layer up to 205 nm, molecular transport through both the layers was prevented. However, water was observed to condense onto the bottom layer, and transport occurred for thinner top layers.
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Affiliation(s)
- Laura Despot
- Ernst-Berl-Institut für Technische und Makromolekulare Chemie, Technische Universität Darmstadt 64289 Darmstadt Germany
| | - Chirag Hinduja
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
| | - Robert Lehn
- Ernst-Berl-Institut für Technische und Makromolekulare Chemie, Technische Universität Darmstadt 64289 Darmstadt Germany
| | - Joanna Mikolei
- Ernst-Berl-Institut für Technische und Makromolekulare Chemie, Technische Universität Darmstadt 64289 Darmstadt Germany
| | - Timo Richter
- Institut für Strömungslehre und Aerodynamik, Technische Universität Darmstadt Peter-Grünberg-Straße 10 64289 Darmstadt Germany
| | - Kilian Köbschall
- Institut für Strömungslehre und Aerodynamik, Technische Universität Darmstadt Peter-Grünberg-Straße 10 64289 Darmstadt Germany
| | - Mathias Stanzel
- Ernst-Berl-Institut für Technische und Makromolekulare Chemie, Technische Universität Darmstadt 64289 Darmstadt Germany
| | - Rüdiger Berger
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
| | - Jeanette Hussong
- Institut für Strömungslehre und Aerodynamik, Technische Universität Darmstadt Peter-Grünberg-Straße 10 64289 Darmstadt Germany
| | - Marcelo Ceolín
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas, Universidad Nacional de La Plata and CONICET Diag. 113 y 64 (1900) La Plata Argentina
| | - Annette Andrieu-Brunsen
- Ernst-Berl-Institut für Technische und Makromolekulare Chemie, Technische Universität Darmstadt 64289 Darmstadt Germany
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13
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Jayaraman S, Rajarathinam T, Jang HG, Thirumalai D, Lee J, Paik HJ, Chang SC. Ruthenium-Anchored Carbon Sphere-Customized Sensor for the Selective Amperometric Detection of Melatonin. BIOSENSORS 2023; 13:936. [PMID: 37887129 PMCID: PMC10605478 DOI: 10.3390/bios13100936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/10/2023] [Accepted: 10/16/2023] [Indexed: 10/28/2023]
Abstract
Melatonin (MT), a pineal gland hormone, regulates the sleep/wake cycle and is a potential biomarker for neurodegenerative disorders, depression, hypertension, and several cancers, including prostate cancer and hepatocarcinoma. The amperometric detection of MT was achieved using a sensor customized with ruthenium-incorporated carbon spheres (Ru-CS), possessing C- and O-rich catalytically active Ru surfaces. The non-covalent interactions and ion-molecule adducts between Ru and CS favor the formation of heterojunctions at the sensor-analyte interface, thus accelerating the reactions towards MT. The Ru-CS/Screen-printed carbon electrode (SPCE) sensor demonstrated the outstanding electrocatalytic oxidation of MT owing to its high surface area and heterogeneous rate constants and afforded a lower detection limit (0.27 μM), high sensitivity (0.85 μA μM -1 cm-2), and excellent selectivity for MT with the co-existence of crucial neurotransmitters, including norepinephrine, epinephrine, dopamine, and serotonin. High concentrations of active biomolecules, such as ascorbic acid and tyrosine, did not interfere with MT detection. The practical feasibility of the sensor for MT detection in pharmaceutical samples was demonstrated, comparable to the data provided on the product labels. The developed amperometric sensor is highly suitable for the quality control of medicines because of its low cost, simplicity, small sample size, speed of analysis, and potential for automation.
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Affiliation(s)
- Sivaguru Jayaraman
- Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan 46241, Republic of Korea; (S.J.); (T.R.); (H.-G.J.)
| | - Thenmozhi Rajarathinam
- Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan 46241, Republic of Korea; (S.J.); (T.R.); (H.-G.J.)
| | - Hyeon-Geun Jang
- Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan 46241, Republic of Korea; (S.J.); (T.R.); (H.-G.J.)
| | - Dinakaran Thirumalai
- BIT Convergence-Based Innovative Drug Development Targeting Metainflammation, Pusan National University, Busan 46241, Republic of Korea; (D.T.); (J.L.)
| | - Jaewon Lee
- BIT Convergence-Based Innovative Drug Development Targeting Metainflammation, Pusan National University, Busan 46241, Republic of Korea; (D.T.); (J.L.)
- Department of Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Hyun-Jong Paik
- Department of Polymer Science and Engineering, Pusan National University, Busan 46241, Republic of Korea;
| | - Seung-Cheol Chang
- Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan 46241, Republic of Korea; (S.J.); (T.R.); (H.-G.J.)
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14
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Scala-Benuzzi M, Fernández SN, Giménez G, Ybarra G, Soler-Illia GJAA. Ordered Mesoporous Electrodes for Sensing Applications. ACS OMEGA 2023; 8:24128-24152. [PMID: 37457464 PMCID: PMC10339336 DOI: 10.1021/acsomega.3c02013] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 06/09/2023] [Indexed: 07/18/2023]
Abstract
Electrochemical sensors have become increasingly relevant in fields such as medicine, environmental monitoring, and industrial process control. Selectivity, specificity, sensitivity, signal reproducibility, and robustness are among the most important challenges for their development, especially when the target compound is present in low concentrations or in complex analytical matrices. In this context, electrode modification with Mesoporous Thin Films (MTFs) has aroused great interest in the past years. MTFs present high surface area, uniform pore distribution, and tunable pore size. Furthermore, they offer a wide variety of electrochemical signal modulation possibilities through molecular sieving, electrostatic or steric exclusion, and preconcentration effects which are due to mesopore confinement and surface functionalization. In order to fully exploit these advantages, it is central to develop reproducible routes for sensitive, selective, and robust MTF-modified electrodes. In addition, it is necessary to understand the complex mass and charge transport processes that take place through the film (particularly in the mesopores, pore surfaces, and interfaces) and on the electrode in order to design future intelligent and adaptive sensors. We present here an overview of MTFs applied to electrochemical sensing, in which we address their fabrication methods and the transport processes that are critical to the electrode response. We also summarize the current applications in biosensing and electroanalysis, as well as the challenges and opportunities brought by integrating MTF synthesis with electrode microfabrication, which is critical when moving from laboratory work to in situ sensing in the field of interest.
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Affiliation(s)
- María
L. Scala-Benuzzi
- INTI-Micro
y Nanotecnologías, Instituto Nacional
de Tecnología Industrial, Av. Gral. Paz 5445, 1560 San Martín, Buenos
Aires, Argentina
- Instituto
de Nanosistemas, Escuela de Bio y Nanotecnologías, UNSAM-CONICET, Av. 25 de Mayo 1169, 1650 San Martín, Provincia de Buenos Aires, Argentina
| | - Sol N. Fernández
- INTI-Micro
y Nanotecnologías, Instituto Nacional
de Tecnología Industrial, Av. Gral. Paz 5445, 1560 San Martín, Buenos
Aires, Argentina
- Instituto
de Nanosistemas, Escuela de Bio y Nanotecnologías, UNSAM-CONICET, Av. 25 de Mayo 1169, 1650 San Martín, Provincia de Buenos Aires, Argentina
- Instituto
de Calidad Industrial (INCALIN-UNSAM), Av. 25 de Mayo y Francia, 1650 San Martín, Provincia
de Buenos Aires Argentina
| | - Gustavo Giménez
- INTI-Micro
y Nanotecnologías, Instituto Nacional
de Tecnología Industrial, Av. Gral. Paz 5445, 1560 San Martín, Buenos
Aires, Argentina
| | - Gabriel Ybarra
- INTI-Micro
y Nanotecnologías, Instituto Nacional
de Tecnología Industrial, Av. Gral. Paz 5445, 1560 San Martín, Buenos
Aires, Argentina
| | - Galo J. A. A. Soler-Illia
- Instituto
de Nanosistemas, Escuela de Bio y Nanotecnologías, UNSAM-CONICET, Av. 25 de Mayo 1169, 1650 San Martín, Provincia de Buenos Aires, Argentina
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15
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Mohamed NAN, Han Y, Harcourt-Vernon S, Hector AL, Houghton AR, Reid G, Williams DR, Zhang W. Effects of surfactant head group modification on vertically oriented mesoporous silica produced by the electrochemically assisted surfactant assembly method. NANOSCALE ADVANCES 2023; 5:3316-3325. [PMID: 37325528 PMCID: PMC10263000 DOI: 10.1039/d3na00031a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 05/17/2023] [Indexed: 06/17/2023]
Abstract
Production of mesoporous silica films with vertically oriented pores has been a challenge since interest in such systems developed in the 1990s. Vertical orientation can be achieved by the electrochemically assisted surfactant assembly (EASA) method using cationic surfactants such as cetyltrimethylammonium bromide (C16TAB). The synthesis of porous silicas using a series of surfactants with increasing head sizes is described, from octadecyltrimethylammonium bromide (C18TAB) to octadecyltriethylammonium bromide (C18TEAB). These increase pore size, but the degree of hexagonal order in the vertically aligned pores reduces as the number of ethyl groups increases. Pore accessibility is also reduced with the larger head groups.
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Affiliation(s)
- Nabil A N Mohamed
- School of Chemistry, University of Southampton Highfield Southampton SO17 1BJ UK
| | - Yisong Han
- Department of Physics, University of Warwick Coventry CV4 7AL UK
| | | | - Andrew L Hector
- School of Chemistry, University of Southampton Highfield Southampton SO17 1BJ UK
| | | | - Gillian Reid
- School of Chemistry, University of Southampton Highfield Southampton SO17 1BJ UK
| | - Daryl R Williams
- Department of Chemical Engineering, Imperial College London SW7 2AZ UK
| | - Wenjian Zhang
- School of Chemistry, University of Southampton Highfield Southampton SO17 1BJ UK
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16
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Masihpour N, Hassaninejad-Darzi SK, Sarvary A. Nickel-Cobalt Salen Organometallic Complexes Encapsulated in Mesoporous NaA Nanozeolite for Electrocatalytic Quantification of Ascorbic Acid and Paracetamol. J Inorg Organomet Polym Mater 2023; 33:1-20. [PMID: 37359386 PMCID: PMC10199302 DOI: 10.1007/s10904-023-02708-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 05/07/2023] [Indexed: 06/28/2023]
Abstract
Goal of current study was fabrication of novel voltammetric nanosensor for the synchronize quantification of ascorbic acid (AA) and paracetamol (PAR) by nickel-cobalt salen complexes encapsulated in the supercages of NaA nanozeolite modified carbon paste electrode (NiCoSalenA/CPE). For this purpose, NiCoSalenA nanocomposite was firstly prepared and characterized by various methods. Also, cyclic voltammetry (CV), choronoamperometry (CHA) and differential pulse voltammetry (DPV) were utilized to evaluate performance of the modified electrodes. The effects of pH and modifier amount were considered on the electrochemical oxidation of AA and PAR on the surface of NiCoSalenA/CPE. Results from this method indicated that pH of 3.0 in phosphate buffer solution (0.1 M) and 15 wt% of NiCoSalenA nanocomposite in the modified CPE results in the maximum current density. The oxidation signals of AA and PAR was amplified affectively at NiCoSalenA/CPE versus unmodified CPE. The limit of detection (LOD) and linear dynamic range (LDR) for the simultaneous measurement of them were founds to be 0.82 and 2.73-80.70 for AA and 0.51 µM, 1.71-32.50 and 32.50-137.60 µM for PAR, respectively. The catalytic rate constants (kcat) were attained to be 3.73 × 107 and 1.27 × 107 cm3 mol-1 s-1 for AA and PAR via CHA method, respectively. Also, the amounts of diffusion coefficient (D) were found to be 1.12 × 10-7 and 1.92 × 10-7 cm2 s-1 for AA and PAR, respectively. The average value of electron transfer rate constant between NiCoSalenA/CPE and PAR was obtained to be 0.016 s-1. The NiCoSalen-A/CPE displayed worthy stability, repeatability and extraordinary recovery for simultaneous measurements of AA and PAR. Application of offered sensor was confirmed by quantifying concentrations of AA and PAR in human serum solution as a real sample.
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Affiliation(s)
- Nafiseh Masihpour
- Department of Chemistry, Faculty of Basic Science, Babol Noshirvani University of Technology, Shariati Ave, Babol, 47148-71167 Iran
| | - Seyed Karim Hassaninejad-Darzi
- Department of Chemistry, Faculty of Basic Science, Babol Noshirvani University of Technology, Shariati Ave, Babol, 47148-71167 Iran
| | - Afshin Sarvary
- Department of Chemistry, Faculty of Basic Science, Babol Noshirvani University of Technology, Shariati Ave, Babol, 47148-71167 Iran
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17
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Guo RT, Hu X, Chen X, Bi ZX, Wang J, Pan WG. Recent Progress of Three-dimensionally Ordered Macroporous (3DOM) Materials in Photocatalytic Applications: A Review. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207767. [PMID: 36624608 DOI: 10.1002/smll.202207767] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 12/28/2022] [Indexed: 06/17/2023]
Abstract
In recent years, three-dimensionally ordered macroporous (3DOM) materials have attracted tremendous interest in the field of photocatalysis due to the periodic spatial structure and unique physicochemical properties of 3DOM catalysts. In this review, the fundamentals and principles of 3DOM photocatalysts are briefly introduced, including the overview of 3DOM materials, the photocatalytic principles based on 3DOM materials, and the advantages of 3DOM materials in photocatalysis. The preparation methods of 3DOM materials are also presented. The structure and properties of 3DOM materials and their effects on photocatalytic performance are briefly summarized. More importantly, 3DOM materials, as a supported catalyst, are extensively employed to combine with various common materials, including metal nanoparticles, metal oxides, metal sulfides, and carbon materials, to enhance photocatalytic performance. Finally, the prospects and challenges for the development of 3DOM materials in the field of photocatalysis are presented.
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Affiliation(s)
- Rui-Tang Guo
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, China
| | - Xing Hu
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, China
| | - Xin Chen
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, China
| | - Zhe-Xu Bi
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, China
| | - Juan Wang
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, China
| | - Wei-Guo Pan
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, China
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18
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Constructing NaX Nanozeolite Modified Carbon Paste Electrode for Electro-Catalytic Measurement of Gentamicin Sulfate in Pharmaceutical Samples. J Inorg Organomet Polym Mater 2023. [DOI: 10.1007/s10904-023-02587-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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19
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Pal B, Parameswaran AK, Wu B, Děkanovský L, Mazánek V, Sarkar KJ, Jose R, Sofer Z. Insights into the Charge Storage Mechanism of Binder-Free Electrochemical Capacitors in Ionic Liquid Electrolytes. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c03667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Affiliation(s)
- Bhupender Pal
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, 166 28 Prague 6, Czech Republic
| | | | - Bing Wu
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, 166 28 Prague 6, Czech Republic
| | - Lukáš Děkanovský
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, 166 28 Prague 6, Czech Republic
| | - Vlastimil Mazánek
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, 166 28 Prague 6, Czech Republic
| | - Kalyan Jyoti Sarkar
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, 166 28 Prague 6, Czech Republic
| | - Rajan Jose
- Center for Advanced Intelligent Materials, Faculty of Industrial Sciences & Technology, Universiti Malaysia Pahang, Kuantan 26300, Malaysia
| | - Zdeněk Sofer
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, 166 28 Prague 6, Czech Republic
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20
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Wang J, Yu J, Yu Y, Luo Z, Li G, Lin X. Nanoporous electrode with stable polydimethylsiloxane coating for direct electrochemical analysis of bisphenol A in complex wine media. Food Chem 2023; 405:134806. [DOI: 10.1016/j.foodchem.2022.134806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 10/06/2022] [Accepted: 10/27/2022] [Indexed: 11/10/2022]
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21
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Innocenzi P. Mesoporous ordered films via self-assembly: trends and perspectives. Chem Sci 2022; 13:13264-13279. [PMID: 36507165 PMCID: PMC9682886 DOI: 10.1039/d2sc04828k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/07/2022] [Indexed: 12/15/2022] Open
Abstract
The synthesis of ordered mesoporous films via self-assembly represents one of the main accomplishments in nanoscience. In fact, controlling the complex chemical-physical phenomena that govern the process triggered by the solvent's fast evaporation during film deposition has represented a challenging task. Several years after the first articles on the subject, the research in the field entered a new stage. New advanced applications based on the peculiar properties of mesoporous films are envisaged while basic research is still going on, especially to clarify the mechanism behind self-organization in a spatially defined environment and the physics and chemistry in mesoscale porosity. This review has been dedicated to analysing the main trends in the fields and the perspective for future developments.
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Affiliation(s)
- Plinio Innocenzi
- Laboratory of Materials Science and Nanotechnology (LMNT), Department of Biomedical Sciences, CR-INSTM, University of SassariViale San Pietro 43/BSassari 07100Italy,Department of Chemistry, University of United Arab Emirates, Al Ain. United Arab EmiratesUnited Arab Emirates
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22
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Gañán J, Martínez-García G, Morante-Zarcero S, Pérez-Quintanilla D, Sierra I. Nanomaterials-modified electrochemical sensors for sensitive determination of alkaloids: Recent trends in the application to biological, pharmaceutical and agri-food samples. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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23
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Zheng W, Su R, Yu G, Liu L, Yan F. Highly Sensitive Electrochemical Detection of Paraquat in Environmental Water Samples Using a Vertically Ordered Mesoporous Silica Film and a Nanocarbon Composite. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12203632. [PMID: 36296822 PMCID: PMC9610481 DOI: 10.3390/nano12203632] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 10/09/2022] [Accepted: 10/10/2022] [Indexed: 05/05/2023]
Abstract
Herein, we demonstrate a sensitive and rapid electrochemical method for the detection of paraquat (PQ) using a glassy carbon electrode (GCE) modified with vertically ordered mesoporous silica films (VMSF) and a nanocarbon composite. The three-dimensional graphene-carbon nanotube (3DG-CNT) nanocarbon composite has a 3D network structure, a large electroactive area and oxygen-containing groups, promoting electron transfer between PQ and the underlying electrode and providing a suitable microenvironment for the stable growth of VMSF. This VMSF/3DG-CNT nanocomposite film could be prepared on the GCE's surface by a two-step electrochemical method with good controllability and convenience. Owing to the synergistic effect of the electrocatalytic ability of 3DG-CNT and the electrostatically enriched capacity of VMSF, the proposed VMSF/3DG-CNT/GCE has superior analytical sensitivity compared with the bare GCE. Furthermore, VMSF has excellent anti-fouling ability that makes the fabricated sensor exhibit satisfactory performance for direct analysis of PQ in environmental water samples.
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Affiliation(s)
- Weiran Zheng
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
- Correspondence: (W.Z.); (F.Y.)
| | - Ruobing Su
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Guoguang Yu
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Lin Liu
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Fei Yan
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
- Correspondence: (W.Z.); (F.Y.)
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24
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Zheng Y, Wang L, Liu H, Yang J, Zhang R, Zhang L, Qiao Z. A Modular Co‐assembly Strategy for Ordered Mesoporous Perovskite Oxides with Abundant Surface Active Sites. Angew Chem Int Ed Engl 2022; 61:e202209038. [DOI: 10.1002/anie.202209038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Indexed: 01/11/2023]
Affiliation(s)
- Yuenan Zheng
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun, Jilin 130012 China
| | - Luoqi Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun, Jilin 130012 China
| | - Hongyu Liu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun, Jilin 130012 China
| | - Jiaqi Yang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun, Jilin 130012 China
| | - Rui Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun, Jilin 130012 China
| | - Ling Zhang
- State Key Laboratory of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun, Jilin 130012 China
| | - Zhen‐An Qiao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun, Jilin 130012 China
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25
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Sahraei N, Mazloum-Ardakani M, Khoshroo A, Hoseynidokht F, Mohiti J, Moradi A. Electrochemical system designed on a paper platform as a label-free immunosensor for cancer derived exosomes based on a mesoporous carbon foam- ternary nanocomposite. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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26
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Ahoulou S, Richart C, Carteret C, Pillet S, Vilà N, Walcarius A. Weak Coordinating Character of Organosulfonates in Oriented Silica Films: An Efficient Approach for Immobilizing Cationic Metal-Transition Complexes. Molecules 2022; 27:molecules27175444. [PMID: 36080210 PMCID: PMC9458166 DOI: 10.3390/molecules27175444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/13/2022] [Accepted: 08/17/2022] [Indexed: 11/16/2022] Open
Abstract
Iron (II) tris(2,2′-bipyridine) complexes, [Fe(bpy)3]2+, have been synthesized and immobilized in organosulfonate-functionalized nanostructured silica thin films taking advantage of the stabilization of [Fe(H2O)6]2+ species by hydrogen bonds to the anionic sulfonate moieties grafted to the silica nanopores. In a first step, thiol-based silica films have been electrochemically generated on indium tin oxide (ITO) substrates by co-condensation of 3-mercaptopropyltrimethoxysilane (MPTMS) and tetraethoxysilane (TEOS). Secondly, the thiol function has been modified to sulfonate by chemical oxidation using hydrogen peroxide in acidic medium as an oxidizing agent. The immobilization of [Fe(bpy)3]2+ complexes has been performed in situ in two consecutive steps: (i) impregnation of the sulfonate functionalized silica films in an aqueous solution of iron (II) sulfate heptahydrate; (ii) dipping of the iron-containing mesostructures in a solution of bipyridine ligands in acetonitrile. The in situ formation of the [Fe(bpy)3]2+ complex is evidenced by its characteristic optical absorption spectrum, and elemental composition analysis using X-ray photoelectron spectroscopy. The measured optical and electrochemical properties of immobilized [Fe(bpy)3]2+ complexes are not altered by confinement in the nanostructured silica thin film.
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Affiliation(s)
- Samuel Ahoulou
- LCPME, CNRS, Universite de Lorraine, F-54000 Nancy, France
- CRM2, CNRS, Universite de Lorraine, F-54000 Nancy, France
| | - Clara Richart
- LCPME, CNRS, Universite de Lorraine, F-54000 Nancy, France
| | | | - Sébastien Pillet
- CRM2, CNRS, Universite de Lorraine, F-54000 Nancy, France
- Correspondence: (S.P.); (N.V.); (A.W.)
| | - Neus Vilà
- LCPME, CNRS, Universite de Lorraine, F-54000 Nancy, France
- Correspondence: (S.P.); (N.V.); (A.W.)
| | - Alain Walcarius
- LCPME, CNRS, Universite de Lorraine, F-54000 Nancy, France
- Correspondence: (S.P.); (N.V.); (A.W.)
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27
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Baek DS, Joo SH. Non‐siliceous
ordered mesoporous materials via nanocasting for small molecule conversion electrocatalysis. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Du San Baek
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) Ulsan Republic of Korea
| | - Sang Hoon Joo
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) Ulsan Republic of Korea
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28
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He Y, Khan MA, Drake AD, Ladipo F, Rankin SE, Knutson BL. Nanoconfinement Effects on the Transport of Redox Probes in Ionic Liquid-Loaded Mesoporous Silica Thin Films. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuxin He
- Department of Chemical and Materials Engineering, University of Kentucky, 177 F.P. Anderson Tower, Lexington 40506, Kentucky, United States
| | - M. Arif Khan
- Department of Chemical and Materials Engineering, University of Kentucky, 177 F.P. Anderson Tower, Lexington 40506, Kentucky, United States
| | - Andrew D. Drake
- Department of Chemical and Materials Engineering, University of Kentucky, 177 F.P. Anderson Tower, Lexington 40506, Kentucky, United States
| | - Folami Ladipo
- Department of Chemistry, University of Kentucky, 125 Chemistry/Physics Building, Lexington, Kentucky 40506, United States
| | - Stephen E. Rankin
- Department of Chemical and Materials Engineering, University of Kentucky, 177 F.P. Anderson Tower, Lexington 40506, Kentucky, United States
| | - Barbara L. Knutson
- Department of Chemical and Materials Engineering, University of Kentucky, 177 F.P. Anderson Tower, Lexington 40506, Kentucky, United States
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29
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Hassasi S, Hassaninejad-Darzi SK. Electro-Oxidation of Tamoxifen on Nanozeolite NaY Modified Carbon Paste Electrode. RUSS J ELECTROCHEM+ 2022. [DOI: 10.1134/s1023193522080067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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30
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Asadpour F, Mazloum-Ardakani M. Electro-assisted self-assembly of mesoporous silica thin films: application to electrochemical sensing of glutathione in the presence of copper. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05234-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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31
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Zheng Y, Wang L, Liu H, Yang J, Zhang R, Zhang L, Qiao ZA. A Modular Co‐assembly Strategy for Ordered Mesoporous Perovskite Oxides with Abundant Surface Active Sites. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Luoqi Wang
- Jilin University College of Chemistry CHINA
| | - Hongyu Liu
- Jilin University College of Chemistry CHINA
| | - Jiaqi Yang
- Jilin University College of Chemistry CHINA
| | - Rui Zhang
- Jilin University College of Chemistry CHINA
| | - Ling Zhang
- Jilin University College of Chemistry CHINA
| | - Zhen-An Qiao
- Jilin University Department of Chemistry 2699 Qianjin Street 130012 Changchun CHINA
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32
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Yu Z, Si C, LaGrow AP, Tai Z, Caliebe WA, Tayal A, Sampaio MJ, Sousa JPS, Amorim I, Araujo A, Meng L, Faria JL, Xu J, Li B, Liu L. Iridium–Iron Diatomic Active Sites for Efficient Bifunctional Oxygen Electrocatalysis. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01861] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhipeng Yu
- Clean Energy Cluster, International Iberian Nanotechnology Laboratory (INL), Avenida Mestre Jose Veiga, 4715-330 Braga, Portugal
- LSRE-LCM─Laboratory of Separation and Reaction Engineering─Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
- ALiCE─Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
| | - Chaowei Si
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, P. R. China
| | - Alec P. LaGrow
- Clean Energy Cluster, International Iberian Nanotechnology Laboratory (INL), Avenida Mestre Jose Veiga, 4715-330 Braga, Portugal
| | - Zhixin Tai
- Clean Energy Cluster, International Iberian Nanotechnology Laboratory (INL), Avenida Mestre Jose Veiga, 4715-330 Braga, Portugal
| | - Wolfgang A. Caliebe
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, D-22607 Hamburg, Germany
| | - Akhil Tayal
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, D-22607 Hamburg, Germany
| | - Maria J. Sampaio
- LSRE-LCM─Laboratory of Separation and Reaction Engineering─Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
- ALiCE─Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
| | - Juliana P. S. Sousa
- Clean Energy Cluster, International Iberian Nanotechnology Laboratory (INL), Avenida Mestre Jose Veiga, 4715-330 Braga, Portugal
| | - Isilda Amorim
- Clean Energy Cluster, International Iberian Nanotechnology Laboratory (INL), Avenida Mestre Jose Veiga, 4715-330 Braga, Portugal
| | - Ana Araujo
- Clean Energy Cluster, International Iberian Nanotechnology Laboratory (INL), Avenida Mestre Jose Veiga, 4715-330 Braga, Portugal
- LSRE-LCM─Laboratory of Separation and Reaction Engineering─Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
- ALiCE─Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
| | - Lijian Meng
- Centre of Innovation in Engineering and Industrial Technology, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, 4249-015 Porto, Portugal
| | - Joaquim L. Faria
- LSRE-LCM─Laboratory of Separation and Reaction Engineering─Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
- ALiCE─Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
| | - Junyuan Xu
- Laboratory of Advanced Spectro-electrochemistry and Li-ion Batteries, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023 Dalian, China
| | - Bo Li
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, P. R. China
| | - Lifeng Liu
- Clean Energy Cluster, International Iberian Nanotechnology Laboratory (INL), Avenida Mestre Jose Veiga, 4715-330 Braga, Portugal
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Wordsworth J, Benedetti TM, Somerville SV, Schuhmann W, Tilley RD, Gooding JJ. The Influence of Nanoconfinement on Electrocatalysis. Angew Chem Int Ed Engl 2022; 61:e202200755. [PMID: 35403340 PMCID: PMC9401583 DOI: 10.1002/anie.202200755] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Indexed: 01/02/2023]
Abstract
The use of nanoparticles and nanostructured electrodes are abundant in electrocatalysis. These nanometric systems contain elements of nanoconfinement in different degrees, depending on the geometry, which can have a much greater effect on the activity and selectivity than often considered. In this Review, we firstly identify the systems containing different degrees of nanoconfinement and how they can affect the activity and selectivity of electrocatalytic reactions. Then we follow with a fundamental understanding of how electrochemistry and electrocatalysis are affected by nanoconfinement, which is beginning to be uncovered, thanks to the development of new, atomically precise manufacturing and fabrication techniques as well as advances in theoretical modeling. The aim of this Review is to help us look beyond using nanostructuring as just a way to increase surface area, but also as a way to break the scaling relations imposed on electrocatalysis by thermodynamics.
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Affiliation(s)
- Johanna Wordsworth
- School of ChemistryAustralian Centre for NanoMedicineUniversity of New South WalesSydney2052Australia
| | - Tania M. Benedetti
- School of ChemistryAustralian Centre for NanoMedicineUniversity of New South WalesSydney2052Australia
| | - Samuel V. Somerville
- School of ChemistryAustralian Centre for NanoMedicineUniversity of New South WalesSydney2052Australia
| | - Wolfgang Schuhmann
- Analytical Chemistry—Center for Electrochemical Sciences (CES)Faculty of Chemistry and BiochemistryRuhr University BochumUniversitätstrasse 15044780BochumGermany
| | - Richard D. Tilley
- Electron Microscope UnitMark Wainwright Analytical CentreUniversity of New South WalesSydney2052Australia
| | - J. Justin Gooding
- School of ChemistryAustralian Centre for NanoMedicineUniversity of New South WalesSydney2052Australia
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34
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Ni M, Sun L, Liu B. Mesoporous Gold Nanostructures: Synthesis and Beyond. J Phys Chem Lett 2022; 13:4410-4418. [PMID: 35549343 DOI: 10.1021/acs.jpclett.2c01092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Mesoporous metal nanostructures have offered multiple advantages that cannot be realized elsewhere. These materials have been attracting more research attention in catalysis and electrocatalysis owing to their functional structures and compositions. Of the various mesoporous metals available, mesoporous gold (mesoAu) nanostructures are of special interest in surface-enhanced Raman scattering (SERS) and related applications because of their strong electromagnetic field (localized surface plasmon resonance). In the last few decades, various synthesis strategies have been developed to prepare mesoAu nanostructures with controllable morphologies that exhibit fascinating physicochemical properties and increase applications in SERS, catalysis, and electrocatalysis. In this Perspective, we systematically summarize recent advances in synthesis and applications of mesoAu nanostructures. Four synthesis strategies, including dealloying, nanocasting, electrochemical deposition, and intermediate template, are discussed in detail. Moreover, physicochemical properties and promising applications of mesoAu nanostructures are presented. Finally, we describe current challenges and give a general outlook to explore further directions in synthesis and applications of mesoAu nanostructures.
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Affiliation(s)
- Mei Ni
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Lizhi Sun
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Ben Liu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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35
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Wordsworth J, Benedetti TM, Somerville SV, Schuhmann W, Tilley RD, Gooding JJ. The Influence of Nanoconfinement on Electrocatalysis. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200755] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | - Wolfgang Schuhmann
- Ruhr-Universitat Bochum Analytische Chemie Universitätsstr 150 44780 Bochum GERMANY
| | - Richard D. Tilley
- UNSW: University of New South Wales Electron Microscopy Unit AUSTRALIA
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36
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Moehl GE, Nasir T, Han Y, Noori YJ, Huang R, Beanland R, Bartlett PN, Hector AL. AC-assisted deposition of aggregate free silica films with vertical pore structure. NANOSCALE 2022; 14:5404-5411. [PMID: 35320330 DOI: 10.1039/d1nr08253a] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Silica thin films with vertical nanopores are useful to control access to electrode surfaces and may act as templates for growth of nanomaterials. The most effective method to produce these films, electrochemically assisted surfactant assembly, also produces aggregates of silica particles. This paper shows that growth with an AC signal superimposed onto the potential avoids the aggregates and only very small numbers of single particles are found. This finding is linked to better control of the diffusion field of hydroxide ions that are responsible for particle growth. The resultant films are smooth, with very well-ordered hexagonal pore structures.
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Affiliation(s)
- Gilles E Moehl
- School of Chemistry, University of Southampton, SO17 1BJ, UK.
| | - Tauqir Nasir
- School of Chemistry, University of Southampton, SO17 1BJ, UK.
| | - Yisong Han
- Department of Physics, University of Warwick, CV4 7AL, UK
| | - Yasir J Noori
- School of Electronics and Computer Science, University of Southampton, SO17 1BJ, UK
| | - Ruomeng Huang
- School of Electronics and Computer Science, University of Southampton, SO17 1BJ, UK
| | | | | | - Andrew L Hector
- School of Chemistry, University of Southampton, SO17 1BJ, UK.
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37
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Wu Y, Jamali S, Tilley RD, Gooding JJ. Spiers Memorial Lecture. Next generation nanoelectrochemistry: the fundamental advances needed for applications. Faraday Discuss 2022; 233:10-32. [PMID: 34874385 DOI: 10.1039/d1fd00088h] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Nanoelectrochemistry, where electrochemical processes are controlled and investigated with nanoscale resolution, is gaining more and more attention because of the many potential applications in energy and sensing and the fact that there is much to learn about fundamental electrochemical processes when we explore them at the nanoscale. The development of instrumental methods that can explore the heterogeneity of electrochemistry occurring across an electrode surface, monitoring single molecules or many single nanoparticles on a surface simultaneously, have been pivotal in giving us new insights into nanoscale electrochemistry. Equally important has been the ability to synthesise or fabricate nanoscale entities with a high degree of control that allows us to develop nanoscale devices. Central to the latter has been the incredible advances in nanomaterial synthesis where electrode materials with atomic control over electrochemically active sites can be achieved. After introducing nanoelectrochemistry, this paper focuses on recent developments in two major application areas of nanoelectrochemistry; electrocatalysis and using single entities in sensing. Discussion of the developments in these two application fields highlights some of the advances in the fundamental understanding of nanoelectrochemical systems really driving these applications forward. Looking into our nanocrystal ball, this paper then highlights: the need to understand the impact of nanoconfinement on electrochemical processes, the need to measure many single entities, the need to develop more sophisticated ways of treating the potentially large data sets from measuring such many single entities, the need for more new methods for characterising nanoelectrochemical systems as they operate and the need for material synthesis to become more reproducible as well as possess more nanoscale control.
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Affiliation(s)
- Yanfang Wu
- School of Chemistry and Australian Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia.
| | - Sina Jamali
- School of Chemistry and Australian Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia.
| | - Richard D Tilley
- School of Chemistry and Electron Microscope Unit, Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - J Justin Gooding
- School of Chemistry and Australian Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia.
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38
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Jaugstetter M, Blanc N, Kratz M, Tschulik K. Electrochemistry under confinement. Chem Soc Rev 2022; 51:2491-2543. [PMID: 35274639 DOI: 10.1039/d1cs00789k] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Although the term 'confinement' regularly appears in electrochemical literature, elevated by continuous progression in the research of nanomaterials and nanostructures, up until today the various aspects of confinement considered in electrochemistry are rather scattered individual contributions outside the established disciplines in this field. Thanks to a number of highly original publications and the growing appreciation of confinement as an overarching link between different exciting new research strategies, 'electrochemistry under confinement' is the process of forming a research discipline of its own. To aid the development a coherent terminology and joint basic concepts, as crucial factors for this transformation, this review provides an overview on the different effects on electrochemical processes known to date that can be caused by confinement. It also suggests where boundaries to other effects, such as nano-effects could be drawn. To conceptualize the vast amount of research activities revolving around the main concepts of confinement, we define six types of confinement and select two of them to discuss the state of the art and anticipated future developments in more detail. The first type concerns nanochannel environments and their applications for electrodeposition and for electrochemical sensing. The second type covers the rather newly emerging field of colloidal single entity confinement in electrochemistry. In these contexts, we will for instance address the influence of confinement on the mass transport and electric field distributions and will link the associated changes in local species concentration or in the local driving force to altered reaction kinetics and product selectivity. Highlighting pioneering works and exciting recent developments, this educational review does not only aim at surveying and categorizing the state-of-the-art, but seeks to specifically point out future perspectives in the field of confinement-controlled electrochemistry.
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Affiliation(s)
- Maximilian Jaugstetter
- Analytical Chemistry II, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Bochum, Germany.
| | - Niclas Blanc
- Analytical Chemistry II, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Bochum, Germany.
| | - Markus Kratz
- Analytical Chemistry II, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Bochum, Germany.
| | - Kristina Tschulik
- Analytical Chemistry II, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Bochum, Germany.
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Maruyama J, Maruyama S, Kashiwagi Y, Watanabe M, Shinagawa T, Nagaoka T, Tamai T, Ryu N, Matsuo K, Ohwada M, Chida K, Yoshii T, Nishihara H, Tani F, Uyama H. Helically aligned fused carbon hollow nanospheres with chiral discrimination ability. NANOSCALE 2022; 14:3748-3757. [PMID: 35167641 DOI: 10.1039/d1nr07971a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
While the functions of carbon materials with precisely controlled nanostructures have been reported in many studies, their chiral discriminating abilities have not been reported yet. Herein, chiral discrimination is achieved using helical carbon materials devoid of chiral attachments. A Fe3O4 nanoparticle template with ethyl cellulose (carbon source) is self-assembled on dispersed multiwalled carbon nanotubes (MWCNTs) fixed in a lamellar structure, with helical nanoparticle alignment induced by the addition of a binaphthyl derivative. Carbonization followed by template removal produces helically aligned fused carbon hollow nanospheres (CHNSs) with no chiral molecules left. Helicity is confirmed using vacuum-ultraviolet circular dichroism spectroscopy. Chiral discrimination, as revealed by the electrochemical reactions of binaphthol and a chiral ferrocene derivative in aqueous and nonaqueous electrolytes, respectively, is attributable to the chiral space formed between the CHNS and MWCNT surfaces.
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Affiliation(s)
- Jun Maruyama
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka 536-8553, Japan.
| | - Shohei Maruyama
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka 536-8553, Japan.
| | - Yukiyasu Kashiwagi
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka 536-8553, Japan.
| | - Mitsuru Watanabe
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka 536-8553, Japan.
| | - Tsutomu Shinagawa
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka 536-8553, Japan.
| | - Toru Nagaoka
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka 536-8553, Japan.
| | - Toshiyuki Tamai
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka 536-8553, Japan.
| | - Naoya Ryu
- Kumamoto Industrial Research Institute, 3-11-38, Higashimachi, Higashi-ku, Kumamoto 862-0901, Japan
| | - Koichi Matsuo
- Hiroshima Synchrotron Radiation Center, Hiroshima University, 2-313 Kagamiyama, Higashi-Hiroshima 739-0046, Japan
| | - Mao Ohwada
- Advanced Institute for Materials Research, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Koki Chida
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Takeharu Yoshii
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Hirotomo Nishihara
- Advanced Institute for Materials Research, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, 980-8577, Japan
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Fumito Tani
- Institute for Materials Chemistry and Engineering, Kyushu University, 744, Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita 565-0871, Japan
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40
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Weber S, Diaz A, Holler M, Schropp A, Lyubomirskiy M, Abel KL, Kahnt M, Jeromin A, Kulkarni S, Keller TF, Gläser R, Sheppard TL. Evolution of Hierarchically Porous Nickel Alumina Catalysts Studied by X-Ray Ptychography. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2105432. [PMID: 35289133 PMCID: PMC8922122 DOI: 10.1002/advs.202105432] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/22/2021] [Indexed: 05/14/2023]
Abstract
The synthesis of hierarchically porous materials usually requires complex experimental procedures, often based around extensive trial and error approaches. One common synthesis strategy is the sol-gel method, although the relation between synthesis parameters, material structure and function has not been widely explored. Here, in situ 2D hard X-ray ptychography (XRP) and 3D ptychographic X-ray computed tomography (PXCT) are applied to monitor the development of hierarchical porosity in Ni/Al2 O3 and Al2 O3 catalysts with connected meso- and macropore networks. In situ XRP allows to follow textural changes of a dried gel Ni/Al2 O3 sample as a function of temperature during calcination, activation and CO2 methanation reaction. Complementary PXCT studies on dried gel particles of Ni/Al2 O3 and Al2 O3 provide quantitative information on pore structure, size distribution, and shape with 3D spatial resolution approaching 50 nm, while identical particles are imaged ex situ before and after calcination. The X-ray imaging results are correlated with N2 -sorption, Hg porosimetry and He pycnometry pore characterization. Hard X-ray nanotomography is highlighted to derive fine structural details including tortuosity, branching nodes, and closed pores, which are relevant in understanding transport phenomena during chemical reactions. XRP and PXCT are enabling technologies to understand complex synthesis pathways of porous materials.
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Affiliation(s)
- Sebastian Weber
- Institute for Chemical Technology and Polymer ChemistryKarlsruhe Institute of Technology (KIT)Engesserstr. 20Karlsruhe76131Germany
- Institute of Catalysis Research and TechnologyKarlsruhe Institute of Technology (KIT)Hermann‐von‐Helmholtz‐Platz 1Eggenstein‐Leopoldshafen76344Germany
| | - Ana Diaz
- Paul Scherrer InstitutVilligen PSI5232Switzerland
| | - Mirko Holler
- Paul Scherrer InstitutVilligen PSI5232Switzerland
| | - Andreas Schropp
- Deutsches Elektronen‐Synchrotron DESYNotkestrasse 85Hamburg22607Germany
| | | | - Ken L. Abel
- Institute of Chemical TechnologyUniversität LeipzigLinnéstraße 3Leipzig04103Germany
| | - Maik Kahnt
- MAX IV LaboratoryFotongatan 2Lund225 94Sweden
| | - Arno Jeromin
- Centre for X‐ray and Nano Science (CXNS)Deutsches Elektronen‐Synchrotron DESYNotkestrasse 85Hamburg22607Germany
| | - Satishkumar Kulkarni
- Centre for X‐ray and Nano Science (CXNS)Deutsches Elektronen‐Synchrotron DESYNotkestrasse 85Hamburg22607Germany
| | - Thomas F. Keller
- Centre for X‐ray and Nano Science (CXNS)Deutsches Elektronen‐Synchrotron DESYNotkestrasse 85Hamburg22607Germany
- Physics DepartmentUniversity of HamburgHamburg20355Germany
| | - Roger Gläser
- Institute of Chemical TechnologyUniversität LeipzigLinnéstraße 3Leipzig04103Germany
| | - Thomas L. Sheppard
- Institute for Chemical Technology and Polymer ChemistryKarlsruhe Institute of Technology (KIT)Engesserstr. 20Karlsruhe76131Germany
- Institute of Catalysis Research and TechnologyKarlsruhe Institute of Technology (KIT)Hermann‐von‐Helmholtz‐Platz 1Eggenstein‐Leopoldshafen76344Germany
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41
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Celik E, Cop P, Negi RS, Mazilkin A, Ma Y, Klement P, Schörmann J, Chatterjee S, Brezesinski T, Elm MT. Design of Ordered Mesoporous CeO 2-YSZ Nanocomposite Thin Films with Mixed Ionic/Electronic Conductivity via Surface Engineering. ACS NANO 2022; 16:3182-3193. [PMID: 35138801 DOI: 10.1021/acsnano.1c11032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Mixed ionic and electronic conductors represent a technologically relevant materials system for electrochemical device applications in the field of energy storage and conversion. Here, we report about the design of mixed-conducting nanocomposites by facile surface modification using atomic layer deposition (ALD). ALD is the method of choice, as it allows coating of even complex surfaces. Thermally stable mesoporous thin films of 8 mol-% yttria-stabilized zirconia (YSZ) with different pore sizes of 17, 24, and 40 nm were prepared through an evaporation-induced self-assembly process. The free surface of the YSZ films was uniformly coated via ALD with a ceria layer of either 3 or 7 nm thickness. Electrochemical impedance spectroscopy was utilized to probe the influence of the coating on the charge-transport properties. Interestingly, the porosity is found to have no effect at all. In contrast, the thickness of the ceria surface layer plays an important role. While the nanocomposites with a 7 nm coating only show ionic conductivity, those with a 3 nm coating exhibit mixed conductivity. The results highlight the possibility of tailoring the electrical transport properties by varying the coating thickness, thereby providing innovative design principles for the next-generation electrochemical devices.
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Affiliation(s)
- Erdogan Celik
- Center for Materials Research, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
| | - Pascal Cop
- Center for Materials Research, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
- Institute of Physical Chemistry, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Rajendra S Negi
- Center for Materials Research, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
| | - Andrey Mazilkin
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Yanjiao Ma
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Philip Klement
- Center for Materials Research, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
- Institute of Experimental Physics I, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
| | - Jörg Schörmann
- Center for Materials Research, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
- Institute of Experimental Physics I, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
| | - Sangam Chatterjee
- Center for Materials Research, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
- Institute of Experimental Physics I, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
| | - Torsten Brezesinski
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Matthias T Elm
- Center for Materials Research, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
- Institute of Physical Chemistry, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
- Institute of Experimental Physics I, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
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A Porous Tungsten Substrate for Catalytic Reduction of Hydrogen by Dealloying of a Tungsten–Rhenium Alloy in an Aqueous Solution of Hydrochloric Acid. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12031029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Selective dissolution of a tungsten (85 wt.%)–rhenium (15 wt.%) alloy with rhenium in hydrochloric acid at the temperature of 298 K and anodic polarization modes was carried out to develop a porous catalytic substrate and to recycle rare metals. The parameters of the effective selective anodic dissolution of the tungsten–rhenium alloy, including the differences in applied potentials and electrolyte composition, were found. It was established that samples of the tungsten–rhenium alloy possess the smallest average pore size after being exposed for 6000 s. The obtained porous tungsten samples were characterized by X-ray diffraction and scanning electron spectroscopy. A thermodynamic description of the processes occurring during the anodic selective dissolution of a binary alloy was proposed. In the course of the work, the selectivity coefficient was determined using an X-ray fluorescence wave-dispersion spectrometer XRF-1800. The existence of a bimodal structure on the tungsten surface after dealloying was proved.
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Fu Y, Li Y, Zhang W, Luo C, Jiang L, Ma H. Ionic Covalent Organic Framework: What Does the Unique Ionic Site Bring to Us? Chem Res Chin Univ 2022. [DOI: 10.1007/s40242-022-1448-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Mbiagaing CD, Tagne AJ, Ngnie G, Dedzo GK, Ngameni E. Application of palladium nanoparticles supported organo-kaolinite for 4-chloro-2-nitroaniline catalytic reduction and electrochemical detection. NEW J CHEM 2022. [DOI: 10.1039/d2nj01453j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Palladium nanoparticles (PdNPs) supported organo-kaolinite was used as a solid catalyst for the reduction and electrochemical detection of 4-chloro-2-nitroaniline (CNA). During the catalytic reduction in presence of NaBH4, the effects...
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In situ one-step electrochemical preparation of mesoporous molecularly imprinted sensor for efficient determination of indole-3-acetic acid. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2021.116000] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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46
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Ullah W, Herzog G, Vilà N, Walcarius A. Polyaniline nanowire arrays generated through oriented mesoporous silica films: effect of pore size and spectroelectrochemical response. Faraday Discuss 2021; 233:77-99. [PMID: 34889333 DOI: 10.1039/d1fd00034a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Indium-tin oxide electrodes modified with vertically aligned silica nanochannel membranes have been produced by electrochemically assisted self-assembly of cationic surfactants (cetyl- or octadecyl-trimethylammonium bromide) and concomitant polycondensation of the silica precursors (tetraethoxysilane). They exhibited pore diameters in the 2-3 nm range depending on the surfactant used. After surfactant removal, the bottom of mesopores was derivatized with aminophenyl groups via electrografting (i.e., electrochemical reduction of in situ generated aminophenyl monodiazonium salt). These species covalently bonded to the ITO substrate were then exploited to grow polyaniline nanofilaments by electropolymerization of aniline through the nanochannels. Under potentiostatic conditions, the length of polyaniline wires is controllable by tuning the electropolymerization time. From cyclic voltammetry characterization performed either before or after dissolution of the silica template, it appeared that both the polyaniline/silica composite and the free polyaniline nanowire arrays were electroactive, yet with much larger peak currents in the latter case as a result of larger effective surface area offered to the electrolyte solution. At identical electropolymerization time, the amount of deposited polyaniline was larger when using the silica membrane with larger pore diameter. All polyaniline deposits exhibited electrochromic properties. However, the spectroelectrochemical data indicated more complete interconversion between the coloured oxidized form and colourless reduced polyaniline for the arrays of nanofilaments in comparison to bulky films. In addition, the template-free nanowire arrays (i.e., after silica dissolution) were characterized by faster electrochromic behaviour than the polyaniline/silica hybrid, confirming the potential interest of such polyaniline nano-brushes for practical applications.
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Affiliation(s)
- Wahid Ullah
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564, CNRS - Université de Lorraine, 405 Rue de Vandoeuvre, Villers-lès-Nancy, F-54600, France.
| | - Grégoire Herzog
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564, CNRS - Université de Lorraine, 405 Rue de Vandoeuvre, Villers-lès-Nancy, F-54600, France.
| | - Neus Vilà
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564, CNRS - Université de Lorraine, 405 Rue de Vandoeuvre, Villers-lès-Nancy, F-54600, France.
| | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR 7564, CNRS - Université de Lorraine, 405 Rue de Vandoeuvre, Villers-lès-Nancy, F-54600, France.
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Duan L, Wang C, Zhang W, Ma B, Deng Y, Li W, Zhao D. Interfacial Assembly and Applications of Functional Mesoporous Materials. Chem Rev 2021; 121:14349-14429. [PMID: 34609850 DOI: 10.1021/acs.chemrev.1c00236] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Functional mesoporous materials have gained tremendous attention due to their distinctive properties and potential applications. In recent decades, the self-assembly of micelles and framework precursors into mesostructures on the liquid-solid, liquid-liquid, and gas-liquid interface has been explored in the construction of functional mesoporous materials with diverse compositions, morphologies, mesostructures, and pore sizes. Compared with the one-phase solution synthetic approach, the introduction of a two-phase interface in the synthetic system changes self-assembly behaviors between micelles and framework species, leading to the possibility for the on-demand fabrication of unique mesoporous architectures. In addition, controlling the interfacial tension is critical to manipulate the self-assembly process for precise synthesis. In particular, recent breakthroughs based on the concept of the "monomicelles" assembly mechanism are very promising and interesting for the synthesis of functional mesoporous materials with the precise control. In this review, we highlight the synthetic strategies, principles, and interface engineering at the macroscale, microscale, and nanoscale for oriented interfacial assembly of functional mesoporous materials over the past 10 years. The potential applications in various fields, including adsorption, separation, sensors, catalysis, energy storage, solar cells, and biomedicine, are discussed. Finally, we also propose the remaining challenges, possible directions, and opportunities in this field for the future outlook.
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Affiliation(s)
- Linlin Duan
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, P.R. China
| | - Changyao Wang
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, P.R. China
| | - Wei Zhang
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, P.R. China
| | - Bing Ma
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, P.R. China
| | - Yonghui Deng
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, P.R. China
| | - Wei Li
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, P.R. China
| | - Dongyuan Zhao
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, P.R. China
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Synthetic Approaches, Modification Strategies and the Application of Quantum Dots in the Sensing of Priority Pollutants. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app112411580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) and nitro-aromatic compounds (NACs) are two classifications of environmental pollutants that have become a source of health concerns. As a result, there have been several efforts towards the development of analytical methods that are efficient and affordable that can sense these pollutants. In recent decades, a wide range of techniques has been developed for the detection of pollutants present in the environment. Among these different techniques, the use of semiconductor nanomaterials, also known as quantum dots, has continued to gain more attention in sensing because of the optical properties that make them useful in the identification and differentiation of pollutants in water bodies. Reported studies have shown great improvement in the sensing of these pollutants. This review article starts with an introduction on two types of organic pollutants, namely polycyclic aromatic hydrocarbons and nitro-aromatic explosives. This is then followed by different quantum dots used in sensing applications. Then, a detailed discussion on different groups of quantum dots, such as carbon-based quantum dots, binary and ternary quantum dots and quantum dot composites, and their application in the sensing of organic pollutants is presented. Different studies on the comparison of water-soluble quantum dots and organic-soluble quantum dots of a fluorescence sensing mechanism are reviewed. Then, different approaches on the improvement of their sensitivity and selectivity in addition to challenges associated with some of these approaches are also discussed. The review is concluded by looking at different mechanisms in the sensing of polycyclic aromatic hydrocarbons and nitro-aromatic compounds.
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Wang C, Bongard H, Yu M, Schüth F. Highly Ordered Mesoporous Co 3 O 4 Electrocatalyst for Efficient, Selective, and Stable Oxidation of 5-Hydroxymethylfurfural to 2,5-Furandicarboxylic Acid. CHEMSUSCHEM 2021; 14:5199-5206. [PMID: 33411400 PMCID: PMC9290726 DOI: 10.1002/cssc.202002762] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/05/2021] [Indexed: 06/12/2023]
Abstract
Electrochemical oxidation of biomass substrates to valuable bio-chemicals is highly attractive. However, the design of efficient, selective, stable, and inexpensive electrocatalysts remains challenging. Here it is reported how a 3D highly ordered mesoporous Co3 O4 /nickel foam (om-Co3 O4 /NF) electrode fulfils those criteria in the electrochemical oxidation of 5-hydroxymethylfurfural (HMF) to value-added 2,5-furandicarboxylic acid (FDCA). Full conversion of HMF and an FDCA yield of >99.8 % are achieved with a faradaic efficiency close to 100 % at a potential of 1.457 V vs. reversible hydrogen electrode. Such activity and selectivity to FDCA are attributed to the fast electron transfer, high electrochemical surface area, and reduced charge transfer resistance. More impressively, remarkable catalyst stability under long-term testing is obtained with 17 catalytic cycles. This work highlights the rational design of metal oxides with ordered meso-structures for electrochemical biomass conversion.
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Affiliation(s)
- Changlong Wang
- Max-Planck-Institut für Kohlenforschung45470Mülheim an der RuhrGermany
| | | | - Mingquan Yu
- Max-Planck-Institut für Kohlenforschung45470Mülheim an der RuhrGermany
| | - Ferdi Schüth
- Max-Planck-Institut für Kohlenforschung45470Mülheim an der RuhrGermany
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50
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Collaborative fabrication of poly(L-proline)s with well-defined mesopores and hydrophobicity: Synergistic effect of mesoporous confinement and hydrophobic micro-environment on organic transformations. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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