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Saleem F, Liu G, Liu G, Chen B, Yun Q, Ge Y, Zhang A, Wang X, Zhou X, Wang G, Liao L, He Z, Li L, Zhang H. Crystal-Phase-Selective Etching of Heterophase Au Nanostructures. SMALL METHODS 2024:e2400430. [PMID: 38970552 DOI: 10.1002/smtd.202400430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 06/17/2024] [Indexed: 07/08/2024]
Abstract
Selective oxidative etching is one of the most effective ways to prepare hollow nanostructures and nanocrystals with specific exposed facets. The mechanism of selective etching in noble metal nanostructures mainly relies on the different reactivity of metal components and the distinct surface energy of multimetallic nanostructures. Recently, phase engineering of nanomaterials (PEN) offers new opportunities for the preparation of unique heterostructures, including heterophase nanostructures. However, the synthesis of hollow multimetallic nanostructures based on crystal-phase-selective etching has been rarely studied. Here, a crystal-phase-selective etching method is reported to selectively etch the unconventional 4H and 2H phases in the heterophase Au nanostructures. Due to the coating of Pt-based alloy and the crystal-phase-selective etching of 4H-Au in 4H/face-centered cubic (fcc) Au nanowires, the well-defined ladder-like Au@PtAg nanoframes are prepared. In addition, the 2H-Au in the fcc-2H-fcc Au nanorods and 2H/fcc Au nanosheets can also be selectively etched using the same method. As a proof-of-concept application, the ladder-like Au@PtAg nanoframes are used for the electrocatalytic hydrogen evolution reaction (HER) in acidic media, showing excellent performance that is comparable to the commercial Pt/C catalyst.
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Affiliation(s)
- Faisal Saleem
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM) & School of Flexible Electronics (Future Technologies), Nanjing Tech University, Nanjing, 211816, China
| | - Guangyao Liu
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Guigao Liu
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
- National Special Superfine Powder Engineering Research Center, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Bo Chen
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
- State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Qinbai Yun
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Yiyao Ge
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - An Zhang
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Xixi Wang
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Xichen Zhou
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Gang Wang
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, China
| | - Lingwen Liao
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, China
| | - Zhen He
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Lujiang Li
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Hua Zhang
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, Hong Kong, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, China
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, 518057, China
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Chen Q, Cao P, Wang Y, Yuan J, Wu P. Spontaneous Formation of Ultrasmall Noble Metal Nanoparticles on Cobalt-Based Layered Double Hydroxide for Electrochemical and Environmental Catalysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310380. [PMID: 38189520 DOI: 10.1002/smll.202310380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/27/2023] [Indexed: 01/09/2024]
Abstract
Supported noble metal nanoparticles (NMNPs) are appealing for energy and environment catalysis. To facilitate the loading of NMNPs, in situ reduction of Mn+ on the support with extra reductants/surfactants is adopted, but typically results in aggregated NMNPs with uneven size distributions or blocked active sites of the NMNPs. Herein, the use of cobalt layered double hydroxide (Co-LDH) is proposed as both support and reductant for the preparation of supported NMNPs with ultrasmall sizes and even distributions. The resultant Co-LDH-supported NMNPs exhibit excellent catalytic performance and stability. For example, Ir/Co-LDH displays a low overpotential of 188 mV (10 mA cm-2) for electrocatalytic oxygen evolution reaction and a long-term stability over 100 h (100 mA cm-2) in overall water splitting. Ru/Co-LDH can achieve a 4-nitrophenol reduction with high rate of 0.36 min-1 and S2- detection with low limit of detection (LOD) of 0.34 µm. Overall, this work provides a green and effective strategy to fabricate supported NMNPs with greatly improved catalytic performances.
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Affiliation(s)
- Qian Chen
- Analytical & Testing Center, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Yihuan Rd, Chengdu, 610064, China
| | - Peisheng Cao
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Yanying Wang
- Analytical & Testing Center, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Yihuan Rd, Chengdu, 610064, China
| | - Jing Yuan
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Peng Wu
- Analytical & Testing Center, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Yihuan Rd, Chengdu, 610064, China
- College of Chemistry, Sichuan University, Chengdu, 610064, China
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Zhang W, Dai L. Mesoporous Metal Nanomaterials: Developments and Electrocatalytic Applications. Chemistry 2024; 30:e202400402. [PMID: 38362815 DOI: 10.1002/chem.202400402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 02/17/2024]
Abstract
Mesoporous metal nanomaterials (MPMNs) are pivotal in nanotechnology, especially in electrochemical applications, due to their unique structure. Unlike traditional nanomaterials, MPMNs possess hierarchical and mesoporous characteristics, providing more active sites for improved mass and electron transfer. This distinctive composition offers dual benefits, enhancing activity, stability, and selectivity for specific reactions. The intricate architecture, featuring interconnected pores, amplifies surface area, ensuring efficient use of active sites and boosting reactivity in electrocatalytic processes. Additionally, the mesoporous nature promotes superior diffusion kinetics, facilitating better transport of reactants and products. This intricate interplay of structural elements contributes not only to the increased efficiency of electrochemical reactions but also to the extended durability of MPMNs during prolonged usage. This concept focus on the synthesis and design strategies of MPMNs, aligning with the dynamic requirements of diverse electrocatalytic applications. The synergy resulting from these advancements not only accentuates the intrinsic properties of MPMNs but also broadens their scope for practical implementation in emerging fields of electrochemistry.
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Affiliation(s)
- Wuyong Zhang
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 315201, Ningbo, Zhejiang, China
| | - Lei Dai
- Key Laboratory for Special Functional Materials of Ministry of Education, School of Materials Science and Engineering, Academy for Advanced Interdisciplinary Studies, Henan University, 475004, Kaifeng, Henan, China
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Liu J, Yang F, Hu J, Zhang X. Nanoparticles for efficient drug delivery and drug resistance in glioma: New perspectives. CNS Neurosci Ther 2024; 30:e14715. [PMID: 38708806 PMCID: PMC11071172 DOI: 10.1111/cns.14715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 03/24/2024] [Accepted: 03/27/2024] [Indexed: 05/07/2024] Open
Abstract
Gliomas are the most common primary tumors of the central nervous system, with glioblastoma multiforme (GBM) having the highest incidence, and their therapeutic efficacy depends primarily on the extent of surgical resection and the efficacy of postoperative chemotherapy. The role of the intracranial blood-brain barrier and the occurrence of the drug-resistant gene O6-methylguanine-DNA methyltransferase have greatly limited the efficacy of chemotherapeutic agents in patients with GBM and made it difficult to achieve the expected clinical response. In recent years, the rapid development of nanotechnology has brought new hope for the treatment of tumors. Nanoparticles (NPs) have shown great potential in tumor therapy due to their unique properties such as light, heat, electromagnetic effects, and passive targeting. Furthermore, NPs can effectively load chemotherapeutic drugs, significantly reduce the side effects of chemotherapeutic drugs, and improve chemotherapeutic efficacy, showing great potential in the chemotherapy of glioma. In this article, we reviewed the mechanisms of glioma drug resistance, the physicochemical properties of NPs, and recent advances in NPs in glioma chemotherapy resistance. We aimed to provide new perspectives on the clinical treatment of glioma.
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Affiliation(s)
- Jiyuan Liu
- Department of Neurosurgerythe First Hospital of China Medical UniversityShenyangChina
| | - Fan Yang
- Department of Cardiologythe Fourth Affiliated Hospital of China Medical UniversityShenyangChina
| | - Jinqu Hu
- Department of Neurosurgerythe First Hospital of China Medical UniversityShenyangChina
| | - Xiuchun Zhang
- Department of Neurologythe First Hospital of China Medical UniversityShenyangChina
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Li J, Li R, Wang W, Lan K, Zhao D. Ordered Mesoporous Crystalline Frameworks Toward Promising Energy Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2311460. [PMID: 38163922 DOI: 10.1002/adma.202311460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/13/2023] [Indexed: 01/03/2024]
Abstract
Ordered mesoporous crystalline frameworks (MCFs), which possess both functional frameworks and well-defined porosity, receive considerable attention because of their unique properties including high surface areas, large pore sizes, tailored porous structures, and compositions. Construction of novel crystalline mesoporous architectures that allows for rich accessible active sites and efficient mass transfer is envisaged to offer ample opportunities for potential energy-related applications. In this review, the rational synthesis, unique structures, and energy applications of MCFs are the main focus. After summarizing the synthetic approaches, an emphasis is placed on the delicate control of crystallites, mesophases, and nano-architectures by concluding basic principles and showing representative examples. Afterward, the currently fabricated components of MCFs such as metals, metal oxides, metal sulfides, and metal-organic frameworks are described in sequence. Further, typical applications of MCFs in rechargeable batteries, supercapacitors, electrocatalysis, and photocatalysis are highlighted. This review ends with the possible development and synthetic challenges of MCFs as well as a future prospect for high-efficiency energy applications, which underscores a pathway for developing advanced materials.
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Affiliation(s)
- Jialong Li
- College of Energy Materials and Chemistry, College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
| | - Rongyao Li
- College of Energy Materials and Chemistry, College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
| | - Wendi Wang
- 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
| | - Dongyuan Zhao
- College of Energy Materials and Chemistry, College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
- College of Chemistry and Materials, Department of Chemistry, Laboratory of Advanced Materials, Fudan University, Shanghai, 200433, P. R. China
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Yang X, Yuan Q, Sheng T, Wang X. Mesoporous Mo-doped PtBi intermetallic metallene superstructures to enable the complete electrooxidation of ethylene glycol. Chem Sci 2024; 15:4349-4357. [PMID: 38516075 PMCID: PMC10952108 DOI: 10.1039/d4sc00323c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 02/12/2024] [Indexed: 03/23/2024] Open
Abstract
Metallenes, intermetallic compounds, and porous nanocrystals are the three types of most promising advanced nanomaterials for practical fuel cell devices, but how to integrate the three structural features into a single nanocrystal remains a huge challenge. Herein, we report an efficient one-step method to construct freestanding mesoporous Mo-doped PtBi intermetallic metallene superstructures (denoted M-PtBiMo IMSs) as highly active and stable ethylene glycol oxidation reaction (EGOR) catalysts. The materials retained their catalytic performance, even in complex direct ethylene glycol fuel cells (DEGFCs). The M-PtBiMo IMSs showed EGOR mass and specific activities of 24.0 A mgPt-1 and 61.1 mA cm-2, respectively, which were both dramatically higher than those of benchmark Pt black and Pt/C. In situ infrared spectra showed that ethylene glycol underwent complete oxidation via a 10-electron CO-free pathway over the M-PtBiMo IMSs. Impressively, M-PtBiMo IMSs demonstrated a much higher power density (173.6 mW cm-2) and stability than Pt/C in DEGFCs. Density functional theory calculations revealed that oxophilic Mo species promoted the EGOR kinetics. This work provides new possibilities for designing advanced Pt-based nanomaterials to improve DEGFC performance.
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Affiliation(s)
- Xiaotong Yang
- State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals, College of Chemistry and Chemical Engineering, Guizhou University Guiyang Guizhou province 550025 P. R. China
| | - Qiang Yuan
- State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals, College of Chemistry and Chemical Engineering, Guizhou University Guiyang Guizhou province 550025 P. R. China
| | - Tian Sheng
- College of Chemistry and Materials Science, Anhui Normal University Wuhu 241000 P. R. China
| | - Xun Wang
- Key Lab of Organic Optoelectronics & Molecular Engineering, Tsinghua University Beijing 100084 P. R. China
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Zámbó D, Kovács D, Radnóczi G, Horváth ZE, Sulyok A, Tolnai I, Deák A. Structural Control Enables Catalytic and Electrocatalytic Activity of Porous Tetrametallic Nanorods. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2400421. [PMID: 38431934 DOI: 10.1002/smll.202400421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/12/2024] [Indexed: 03/05/2024]
Abstract
Integrating more than one type of metal into a nanoparticle that has a well-defined morphology and composition expands the functionalities of nanocatalysts. For a metal core/porous multimetallic shell nanoparticle, the availability of catalytically active surface sites and molecular mass transport can be enhanced, and the multielemental synergy can facilitate intraparticle charge transport. In this work, a reliable and robust synthesis of such a functional tetrametallic nanoparticle type is presented, where a micro- and mesoporous PdPtIr shell is grown on Au nanorods. The effect of critical synthesis parameters, namely temperature and the addition of HCl are investigated on the hydrodynamic size of the micellar pore template as well as on the stability of the metal chloride complexes and various elemental analysis techniques prove composition of the porous multimetallic shell. Due to the synergistic properties, the tetrametallic nanorods possess extensive negative surface charge making them a promising catalyst in reduction reactions. Dye degradation as well as the conversion of p-nitrophenol to p-aminophenol is catalyzed by the supportless nanorods without light illumination. By depositing the particles onto conductive substrates, the nanostructured electrodes show promising electrocatalytic activity in ethanol oxidation reaction. The nanocatalyst presents excellent morphological stability during all the catalytic test reactions.
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Affiliation(s)
- Dániel Zámbó
- HUN-REN Centre for Energy Research, Konkoly-Thege M. út 29-33, Budapest, H-1121, Hungary
| | - Dávid Kovács
- HUN-REN Centre for Energy Research, Konkoly-Thege M. út 29-33, Budapest, H-1121, Hungary
- Department of Physical Chemistry and Materials Science, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3, Budapest, H-1111, Hungary
| | - GyörgyZ Radnóczi
- HUN-REN Centre for Energy Research, Konkoly-Thege M. út 29-33, Budapest, H-1121, Hungary
| | - Zsolt E Horváth
- HUN-REN Centre for Energy Research, Konkoly-Thege M. út 29-33, Budapest, H-1121, Hungary
| | - Attila Sulyok
- HUN-REN Centre for Energy Research, Konkoly-Thege M. út 29-33, Budapest, H-1121, Hungary
| | - István Tolnai
- HUN-REN Centre for Energy Research, Konkoly-Thege M. út 29-33, Budapest, H-1121, Hungary
| | - András Deák
- HUN-REN Centre for Energy Research, Konkoly-Thege M. út 29-33, Budapest, H-1121, Hungary
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