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Wang J, Yang L, Li Z, Chen C, Liao X, Guo P, Zhao XS. Morphology Variation of Ternary PdCuSn Nanocrystalline Assemblies and Their Electrocatalytic Oxidation of Alcohols. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 39190921 DOI: 10.1021/acsami.4c04902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/29/2024]
Abstract
Metal alloys not only increase the composition and spatial distribution of elements but also provide the opportunity to adjust their physicochemical properties. Recently, multimetallic alloy nanocatalysts have attracted great attention in energy applications and the chemical industry. This work presents the production of three ternary PdCuSn nanocrystalline assemblies with similar compositions via a one-step hydrothermal method. The shape variation of assembly units from nanosheets and nanowires to nanoparticles were realized by adjusting the percentage of Sn in metal precursors. Experimental data show that PdCuSn nanowire networks showed the best catalytic activity by virtue of their optimized morphological characteristics and microscopic electronic structure. With electrooxidation of methanol, ethanol, ethylene glycol, and glycerol at 30 °C, PdCuSn nanowire networks demonstrated catalytic activity of 1129, 2111, 2540, and 1445 mA mg-1, respectively. The catalytic activity for alcohol oxidation is attributed to the production of the electronic structure and morphology features that are most suitable. This is achieved by introducing the proper quantities of Cu and Sn components in the first stage of synthesis. This study would help with the construction of high-efficiency nanostructured alloy catalysts by regulating the electronic structure and morphology.
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Affiliation(s)
- Jiasheng Wang
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
| | - Likang Yang
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
| | - Ze Li
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
| | - Chen Chen
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
| | - Xuejiang Liao
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
| | - Peizhi Guo
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
| | - X S Zhao
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
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2
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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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3
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Zhang JY, Xia C, Su Y, Zu L, Zhao Z, Li P, Lv Z, Wang J, Mei B, Lan K, Zhao T, Zhang P, Chen W, Zaman S, Liu Y, Peng L, Xia BY, Elzatahry A, Li W, Zhao D. Boosted Oxygen Kinetics of Hierarchically Mesoporous Mo 2C/C for High-current-density Zn-air Battery. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307378. [PMID: 38009801 DOI: 10.1002/smll.202307378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/25/2023] [Indexed: 11/29/2023]
Abstract
The high-current-density Zn-air battery shows big prospects in next-generation energy technologies, while sluggish O2 reaction and diffusion kinetics barricade the applications. Herein, the sequential assembly is innovatively demonstrated for hierarchically mesoporous molybdenum carbides/carbon microspheres with a tunable thickness of mesoporous carbon layers (Meso-Mo2C/C-x, where x represents the thickness). The optimum Meso-Mo2C/C-14 composites (≈2 µm in diameter) are composed of mesoporous nanosheets (≈38 nm in thickness), which possess bilateral mesoporous carbon layers (≈14 nm in thickness), inner Mo2C/C layers (≈8 nm in thickness) with orthorhombic Mo2C nanoparticles (≈2 nm in diameter), a high surface area of ≈426 m2 g-1, and open mesopores (≈6.9 nm in size). Experiments and calculations corroborate the hierarchically mesoporous Mo2C/C can enhance hydrophilicity for supplying sufficient O2, accelerate oxygen reduction kinetics by highly-active Mo2C and N-doped carbon sites, and facilitate O2 diffusion kinetics over hierarchically mesopores. Therefore, Meso-Mo2C/C-14 outputs a high half-wave potential (0.88 V vs RHE) with a low Tafel slope (51 mV dec-1) for oxygen reduction. More significantly, the Zn-air battery delivers an ultrahigh power density (272 mW cm-2), and an unprecedented 100 h stability at a high-current-density condition (100 mA cm-2), which is one of the best performances.
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Affiliation(s)
- Jun-Ye Zhang
- Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and State Key Laboratory of Molecular Engineering of Polymers, School of Chemistry and Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Chenfeng Xia
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
| | - Yaqiong Su
- School of Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Lianhai Zu
- Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and State Key Laboratory of Molecular Engineering of Polymers, School of Chemistry and Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Zaiwang Zhao
- Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and State Key Laboratory of Molecular Engineering of Polymers, School of Chemistry and Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Peng Li
- School of Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Zirui Lv
- Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and State Key Laboratory of Molecular Engineering of Polymers, School of Chemistry and Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Jiazheng Wang
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China
| | - Bingbao Mei
- Shanghai Institute of Applied Physics, Shanghai Synchrotron Radiation Facility, Chinese Academy of Sciences, Shanghai, 201204, P. R. China
| | - Kun Lan
- Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and State Key Laboratory of Molecular Engineering of Polymers, School of Chemistry and Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Tiancong Zhao
- Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and State Key Laboratory of Molecular Engineering of Polymers, School of Chemistry and Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Pengfei Zhang
- Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and State Key Laboratory of Molecular Engineering of Polymers, School of Chemistry and Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Weinan Chen
- Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and State Key Laboratory of Molecular Engineering of Polymers, School of Chemistry and Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Shahid Zaman
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
| | - Yi Liu
- Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and State Key Laboratory of Molecular Engineering of Polymers, School of Chemistry and Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Liang Peng
- Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and State Key Laboratory of Molecular Engineering of Polymers, School of Chemistry and Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Bao Yu Xia
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
| | - Ahmed Elzatahry
- Department of Physics and Materials Science, College of Arts and Sciences, Qatar University, PO Box 2713, Doha, 2713, Qatar
| | - Wei Li
- Laboratory of Advanced Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and State Key Laboratory of Molecular Engineering of Polymers, 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, and State Key Laboratory of Molecular Engineering of Polymers, School of Chemistry and Materials, Fudan University, Shanghai, 200433, P. R. China
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Xiao S, Wang L, Qin Z, Chen X, Chen L, Li Y, Shen K. Silanol-Assisted High-Yield Nanofabrication of SnO 2 Single Crystals with Highly Tunable and Ordered Mesoporosity. ACS CENTRAL SCIENCE 2024; 10:374-384. [PMID: 38435532 PMCID: PMC10906242 DOI: 10.1021/acscentsci.3c01374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/01/2024] [Accepted: 01/03/2024] [Indexed: 03/05/2024]
Abstract
Highly ordered mesoporous materials with a single-crystalline structure have attracted broad interest due to their wide applications from catalysis to energy conversion/storage, but constructing them with good controllability and high yields remains a highly daunting task. Herein, we construct a new class of three-dimensionally ordered mesoporous SnO2 single crystals (3DOm-SnO2) with well-defined facets and excellent mesopore tunability. Mechanism studies demonstrate that the silanol groups on ordered silica nanospheres (3DO-SiO2) can induce the efficient heterogeneous crystallization of uniform SnO2 single crystals in its periodic voids by following the hard and soft acid and base theory, affording a much higher yield of ∼96% for 3DOm-SnO2 than that of its solid counterpart prepared in the absence of 3DO-SiO2 (∼1.5%). Benefiting from its permanent ordered mesopores and favorable electronic structure, Pd-supported 3DOm-SnO2 can efficiently catalyze the unprecedented sequential hydrogenation of 4-nitrophenylacetylene to produce 4-nitrostyrene, then 4-nitroethylbenzene, and finally 4-aminoethylbenzene. DFT calculations further reveal the favorable synergistic effect between Pd and 3DOm-SnO2 via moderate electron transfer for realizing this sequential hydrogenation reaction. Our work underlines the crucial role of silanol groups in inducing the high-yield heterogeneous crystallization of 3DOm-SnO2, shedding light on the rational design and construction of various 3DO single crystals that are of great practical significance.
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Affiliation(s)
- Shoukang Xiao
- Guangdong
Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry
and Chemical Engineering, South China University
of Technology, Guangzhou, Guangdong 510640, China
| | - Li Wang
- Guangdong
Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry
and Chemical Engineering, South China University
of Technology, Guangzhou, Guangdong 510640, China
| | - Ze Qin
- Guangdong
Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry
and Chemical Engineering, South China University
of Technology, Guangzhou, Guangdong 510640, China
| | - Xiao Chen
- Beijing
Key Laboratory of Green Chemical Reaction Engineering and Technology,
Department of Chemical Engineering, Tsinghua
University, Beijing 100084, China
| | - Liyu Chen
- Guangdong
Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry
and Chemical Engineering, South China University
of Technology, Guangzhou, Guangdong 510640, China
| | - Yingwei Li
- Guangdong
Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry
and Chemical Engineering, South China University
of Technology, Guangzhou, Guangdong 510640, China
| | - Kui Shen
- Guangdong
Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry
and Chemical Engineering, South China University
of Technology, Guangzhou, Guangdong 510640, China
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5
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Yang C, Gao Y, Ma T, Bai M, He C, Ren X, Luo X, Wu C, Li S, Cheng C. Metal Alloys-Structured Electrocatalysts: Metal-Metal Interactions, Coordination Microenvironments, and Structural Property-Reactivity Relationships. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2301836. [PMID: 37089082 DOI: 10.1002/adma.202301836] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 04/06/2023] [Indexed: 05/03/2023]
Abstract
Metal alloys-structured electrocatalysts (MAECs) have made essential contributions to accelerating the practical applications of electrocatalytic devices in renewable energy systems. However, due to the complex atomic structures, varied electronic states, and abundant supports, precisely decoding the metal-metal interactions and structure-activity relationships of MAECs still confronts great challenges, which is critical to direct the future engineering and optimization of MAECs. Here, this timely review comprehensively summarizes the latest advances in creating the MAECs, including the metal-metal interactions, coordination microenvironments, and structure-activity relationships. First, the fundamental classification, design, characterization, and structural reconstruction of MAECs are outlined. Then, the electrocatalytic merits and modulation strategies of recent breakthroughs for noble and non-noble metal-structured MAECs are thoroughly discussed, such as solid solution alloys, intermetallic alloys, and single-atom alloys. Particularly, unique insights into the bond interactions, theoretical understanding, and operando techniques for mechanism disclosure are given. Thereafter, the current states of diverse MAECs with a unique focus on structural property-reactivity relationships, reaction pathways, and performance comparisons are discussed. Finally, the future challenges and perspectives for MAECs are systematically discussed. It is believed that this comprehensive review can offer a substantial impact on stimulating the widespread utilization of metal alloys-structured materials in electrocatalysis.
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Affiliation(s)
- Chengdong Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Yun Gao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Tian Ma
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Mingru Bai
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Chao He
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
- Department of Physics, Chemistry, and Pharmacy, Danish Institute for Advanced Study (DIAS), University of Southern Denmark, Campusvej 55, Odense, 5230, Denmark
| | - Xiancheng Ren
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Xianglin Luo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Changzhu Wu
- Department of Physics, Chemistry, and Pharmacy, Danish Institute for Advanced Study (DIAS), University of Southern Denmark, Campusvej 55, Odense, 5230, Denmark
| | - Shuang Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
- Department of Chemistry, Technical University of Berlin, Hardenbergstraße 40, 10623, Berlin, Germany
| | - Chong Cheng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
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6
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Lv H, Liu B. Two-dimensional mesoporous metals: a new era for designing functional electrocatalysts. Chem Sci 2023; 14:13313-13324. [PMID: 38033890 PMCID: PMC10685317 DOI: 10.1039/d3sc04244h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 10/25/2023] [Indexed: 12/02/2023] Open
Abstract
Two-dimensional (2D) mesoporous metals contribute a unique class of electrocatalyst materials for electrochemical applications. The penetrated mesopores of 2D mesoporous metals expose abundant accessible undercoordinated metal sites, while their 2D nanostructures accelerate the transport of electrons and reactants. Therefore, 2D mesoporous metals have exhibited add-in structural functions with great potential in electrocatalysis that not only enhance electrocatalytic activity and stability but also optimize electrocatalytic selectivity. In this Perspective, we summarize recent progress in the design, synthesis, and electrocatalytic performance of 2D mesoporous metals. Four main strategies for synthesizing 2D mesoporous metals, named the CO (and CO container) induced route, halide ion-oriented route, interfacial growth route, and metal oxide atomic reconstruction route, are presented in detail. Moreover, electrocatalytic applications in several important reactions are summarized to highlight the add-in structural functions of 2D mesoporous metals in enhancing electrochemical activity, stability, and selectivity. Finally, current challenges and future directions are discussed in this area. This Perspective offers some important insights into both fundamental investigations and practical applications of novel high-performance functional electrocatalysts.
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Affiliation(s)
- Hao Lv
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 China
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 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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Lin F, Li M, Zeng L, Luo M, Guo S. Intermetallic Nanocrystals for Fuel-Cells-Based Electrocatalysis. Chem Rev 2023; 123:12507-12593. [PMID: 37910391 DOI: 10.1021/acs.chemrev.3c00382] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Electrocatalysis underpins the renewable electrochemical conversions for sustainability, which further replies on metallic nanocrystals as vital electrocatalysts. Intermetallic nanocrystals have been known to show distinct properties compared to their disordered counterparts, and been long explored for functional improvements. Tremendous progresses have been made in the past few years, with notable trend of more precise engineering down to an atomic level and the investigation transferring into more practical membrane electrode assembly (MEA), which motivates this timely review. After addressing the basic thermodynamic and kinetic fundamentals, we discuss classic and latest synthetic strategies that enable not only the formation of intermetallic phase but also the rational control of other catalysis-determinant structural parameters, such as size and morphology. We also demonstrate the emerging intermetallic nanomaterials for potentially further advancement in energy electrocatalysis. Then, we discuss the state-of-the-art characterizations and representative intermetallic electrocatalysts with emphasis on oxygen reduction reaction evaluated in a MEA setup. We summarize this review by laying out existing challenges and offering perspective on future research directions toward practicing intermetallic electrocatalysts for energy conversions.
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Affiliation(s)
- Fangxu Lin
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
- Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
| | - Menggang Li
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Lingyou Zeng
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Mingchuan Luo
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Shaojun Guo
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
- Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
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8
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Chen W, Huang Z, Ni J, Zhou Q, Wu X, Shen H, Zhao H, Jing G. Enhancing Benzene Combustion Activity through Preferential Platinum Atom Exposure via Strategic Pt-Cu Alloying. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15343-15354. [PMID: 37857276 DOI: 10.1021/acs.langmuir.3c02345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Volatile organic compounds such as benzene are hazardous air pollutants that require effective elimination. Noble metal-based catalysts exhibit high benzene combustion activity, but their prohibitive cost necessitates strategies to enhance utilization efficiency. This study investigates a Pt-Cu alloy catalyst for improved benzene combustion by preferentially exposing Pt active sites through Cu alloying. Aberration-corrected scanning transmission electron microscopy and X-ray spectroscopy characterize the nanoscale distribution and enrichment of Pt on the alloy surface. Kinetic measurements demonstrate substantially enhanced activity compared with Pt catalysts, attributed to increased Pt metallic site exposure rather than alteration of the reaction mechanism. In situ Fourier transform infrared (FTIR) spectroscopy reveals a higher abundance of terrace-like Pt sites in the alloy, beneficial for benzene adsorption. Partial pressure dependence analyses indicate competitive adsorption of benzene and O2, following Langmuir-Hinshelwood kinetics. These findings provide conceptual insights into tuning surface composition in bimetallic catalysts to optimize noble metal efficiency, with broad applicability for sustainable catalytic process advancement.
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Affiliation(s)
- Wen Chen
- Department of Environmental Science & Engineering, College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian, China
| | - Zhiwei Huang
- Department of Environmental Science & Engineering, College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian, China
| | - Jiangwei Ni
- Department of Environmental Science & Engineering, College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian, China
| | - Qiqi Zhou
- Department of Environmental Science & Engineering, College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian, China
| | - Xiaomin Wu
- Department of Environmental Science & Engineering, College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian, China
| | - Huazhen Shen
- Department of Environmental Science & Engineering, College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian, China
| | - Huawang Zhao
- Department of Environmental Science & Engineering, College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian, China
| | - Guohua Jing
- Department of Environmental Science & Engineering, College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian, China
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9
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Lv H, Wang Y, Sun L, Yamauchi Y, Liu B. A general protocol for precise syntheses of ordered mesoporous intermetallic nanoparticles. Nat Protoc 2023; 18:3126-3154. [PMID: 37710021 DOI: 10.1038/s41596-023-00872-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 06/12/2023] [Indexed: 09/16/2023]
Abstract
Intermetallic nanomaterials consist of two or more metals in a highly ordered atomic arrangement. There are many possible combinations and morphologies, and exploring their properties is an important research area. Their strict stoichiometry requirement and well-defined atom binding environment make intermetallic compounds an ideal research platform to rationally optimize catalytic performance. Making mesoporous intermetallic materials is a further advance; crystalline mesoporosity can expose more active sites, facilitate the mass and electron transfer, and provide the distinguished mesoporous nanoconfinement environment. In this Protocol, we describe how to prepare ordered mesoporous intermetallic nanomaterials with controlled compositions, morphologies/structures and phases by a general concurrent template strategy. In this approach, the concurrent template used is a hybrid of mesoporous platinum or palladium and Korea Advanced Institute of Science and Technology-6 (KIT-6) (meso-Pt/KIT-6 or meso-Pd/KIT-6) that can be transformed by the second precursors under reducing conditions. The second precursor can either be a second metal or a metalloid/non-metal, e.g., boron/phosphorus. KIT-6 is a silica scaffold that is removed using NaOH or HF to form the mesoporous product. Procedures for example catalytic applications include the 3-nitrophenylacetylene semi-hydrogenation reaction, p-nitrophenol reduction reaction and electrochemical hydrogen evolution reaction. The synthetic strategy for preparation of ordered mesoporous intermetallic nanoparticles would take almost 5 d; the physical characterization by electron microscope, X-ray diffraction and inductively coupled plasma-mass spectrometry takes ~2 days and the function characterization depends on the research question, but for catalysis it takes 1-5 h.
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Affiliation(s)
- Hao Lv
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, China
| | - Yanzhi Wang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, China
| | - Lizhi Sun
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, China
| | - Yusuke Yamauchi
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland, Australia
- Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Ben Liu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, China.
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10
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Wang Z, Chen S, Wu W, Chen R, Zhu Y, Jiang H, Yu L, Cheng N. Tailored Lattice Compressive Strain of Pt-Skins by the L1 2 -Pt 3 M Intermetallic Core for Highly Efficient Oxygen Reduction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2301310. [PMID: 37196181 DOI: 10.1002/adma.202301310] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/07/2023] [Indexed: 05/19/2023]
Abstract
The sluggish kinetics of oxygen reduction reaction (ORR) and unsatisfactory durability of Pt-based catalysts are severely hindering the commercialization of proton-exchange-membrane fuel cells (PEMFCs). In this work, the lattice compressive strain of Pt-skins imposed by Pt-based intermetallic cores is tailored for highly effective ORR through the confinement effect of the activated nitrogen-doped porous carbon (a-NPC). The modulated pores of a-NPC not only promote Pt-based intermetallics with ultrasmall size (average size of <4 nm), but also efficiently stabilizes intermetallic nanoparticles and sufficient exposure of active sites during the ORR process. The optimized catalyst (L12 -Pt3 Co@ML-Pt/NPC10 ) achieves excellent mass activity (1.72 A mgPt -1 ) and specific activity (3.49 mA cmPt -2 ), which are 11- and 15-fold that of commercial Pt/C, respectively. Besides, owing to the confinement effect of a-NPC and protection of Pt-skins, L12 -Pt3 Co@ML-Pt/NPC10 retains 98.1% mass activity after 30 000 cycles, and even 95% for 100 000 cycles, while Pt/C retains only 51.2% for 30 000 cycles. Rationalized by density functional theory, compared with other metals (Cr, Mn, Fe, and Zn), L12 -Pt3 Co closer to the top of "volcano" induces a more suitable compressive strain and electronic structure on Pt-skin, leading to an optimal oxygen adsorption energy and a remarkable ORR performance.
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Affiliation(s)
- Zichen Wang
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Suhao Chen
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Wei Wu
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Runzhe Chen
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Yu Zhu
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Haoran Jiang
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Liyue Yu
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Niancai Cheng
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, P. R. China
- Key Laboratory of Fuel Cell Technology of Guangdong Province, Guangzhou, 510641, P. R. China
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11
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Zhu Y, Zhao R, Feng L, Wang C, Dong S, Zyuzin MV, Timin A, Hu N, Liu B, Yang P. Dual Nanozyme-Driven PtSn Bimetallic Nanoclusters for Metal-Enhanced Tumor Photothermal and Catalytic Therapy. ACS NANO 2023; 17:6833-6848. [PMID: 36974997 DOI: 10.1021/acsnano.3c00423] [Citation(s) in RCA: 41] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Specific generation of reactive oxygen species (ROS) within tumors in situ catalyzed by nanozymes is a promising strategy for cancer therapeutics. However, it remains a significant challenge to fabricate highly efficient nanozymes acting in the tumor microenvironment. Herein, we develop a bimetallic nanozyme (Pt50Sn50) with the photothermal enhancement of dual enzymatic activities for tumor catalytic therapy. The structures and activities of PtSn bimetallic nanoclusters (BNCs) with different Sn content are explored and evaluated systematically. Experimental comparisons show that the Pt50Sn50 BNCs exhibit the highest activities among all those investigated, including enzymatic activity and photothermal property, due to the generation of SnO2-x with oxygen vacancy (Ovac) sites on the surface of Pt50Sn50 BNCs. Specifically, the Pt50Sn50 BNCs exhibit photothermal-enhanced peroxidase-like and catalase-like activities, as well as a significantly enhanced anticancer efficacy in both multicellular tumor spheroids and in vivo experiments. Due to the high X-ray attenuation coefficient and excellent light absorption property, the Pt50Sn50 BNCs also show dual-mode imaging capacity of computed tomography and photoacoustic imaging, which could achieve in vivo real-time monitoring of the therapeutic process. Therefore, this work will advance the development of noble-metal nanozymes with optimal composition for efficient tumor catalytic therapy.
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Affiliation(s)
- Yanlin Zhu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China
| | - Ruoxi Zhao
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China
| | - Lili Feng
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China
| | - Chen Wang
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning 530021, P. R. China
| | - Shuming Dong
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China
| | - Mikhail V Zyuzin
- School of Physics and Engineering, ITMO University, St. Petersburg 191002, Russian Federation
| | - Alexander Timin
- School of Physics and Engineering, ITMO University, St. Petersburg 191002, Russian Federation
| | - Narisu Hu
- Oral Implant Center, Second Affiliated Hospital of Harbin Medical University, Harbin 150086, P. R. China
| | - Bin Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China
| | - Piaoping Yang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China
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12
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Zhong Y, Liao P, Kang J, Liu Q, Wang S, Li S, Liu X, Li G. Locking Effect in Metal@MOF with Superior Stability for Highly Chemoselective Catalysis. J Am Chem Soc 2023; 145:4659-4666. [PMID: 36791392 DOI: 10.1021/jacs.2c12590] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Ultrasmall metal nanoparticles (NPs) show high catalytic activity in heterogeneous catalysis but are prone to reunion and loss during the catalytic process, resulting in low chemoselectivity and poor efficiency. Herein, a locking effect strategy is proposed to synthesize high-loading and ultrafine metal NPs in metal-organic frameworks (MOFs) for efficient chemoselective catalysis with high stability. Briefly, the MOF ZIF-90 with aldehyde groups cooperating with diamine chains via aldimine condensation was interlocked, which was employed to confine in situ formation of Au NPs, denoted as Au@L-ZIF-90. The optimized Au@La-ZIF-90 has highly dispersed Au NPs (2.60 ± 0.81 nm) with a loading amount around 22 wt % and shows a great performance toward 3-aminophenylacetylene (3-APA) from the selective hydrogenation of 3-nitrophenylacetylene (3-NPA) with a high yield (99%) and excellent durability (over 20 cycles), far superior to contrast catalysts without chains locking and other reported catalysts. In addition, experimental characterization and systematic density functional theory calculations further demonstrate that the locked MOF modulates the charge of Au nanoparticles, making them highly specific for nitro group hydrogenation to obtain 3-APA with high selectivity (99%). Furthermore, this locking effect strategy is also applicable to other metal nanoparticles confined in a variety of MOFs, and all of these catalysts locked with chains show great selectivity (≥90%) of 3-APA. The proposed strategy in this work provides a novel and universal method for precise control of the inherent activity of accessible metal nanoparticles with a programmable MOF microenvironment toward highly specific catalysis.
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Affiliation(s)
- Yicheng Zhong
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P.R. China
| | - Peisen Liao
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P.R. China
| | - Jiawei Kang
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P.R. China
| | - Qinglin Liu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P.R. China
| | - Shihan Wang
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P.R. China
| | - Suisheng Li
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P.R. China
| | - Xianlong Liu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P.R. China
| | - Guangqin Li
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P.R. China
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13
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Gao M, Yang Z, Zhang H, Ma J, Zou Y, Cheng X, Wu L, Zhao D, Deng Y. Ordered Mesopore Confined Pt Nanoclusters Enable Unusual Self-Enhancing Catalysis. ACS CENTRAL SCIENCE 2022; 8:1633-1645. [PMID: 36589882 PMCID: PMC9801509 DOI: 10.1021/acscentsci.2c01290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Indexed: 06/17/2023]
Abstract
As an important kind of emerging heterogeneous catalyst for sustainable chemical processes, supported metal cluster (SMC) catalysts have received great attention for their outstanding activity; however, the easy aggregation of metal clusters due to their migration along the substrate's surface usually deteriorates their activity and even causes catalyst failure during cycling. Herein, stable Pt nanoclusters (NCs, ∼1.06 nm) are homogeneously confined in the uniform spherical mesopores of mesoporous titania (mpTiO2) by the interaction between Pt NCs and metal oxide pore walls made of polycrystalline anatase TiO2. The obtained Pt-mpTiO2 exhibits excellent stability with well-retained CO conversion (∼95.0%) and Pt NCs (∼1.20 nm) in the long term water-gas shift (WGS) reaction. More importantly, the Pt-mpTiO2 displays an unusual increasing activity during the cyclic catalyzing WGS reaction, which was found to stem from the in situ generation of interfacial active sites (Ti3+-Ov-Ptδ+) by the reduction effect of spillover hydrogen generated at the stably supported Pt NCs. The Pt-mpTiO2 catalysts also show superior performance toward the selective hydrogenation of furfural to 2-methylfuran. This work discloses an efficient and robust Pt-mpTiO2 catalyst and systematically elucidates the mechanism underlying its unique catalytic activity, which helps to design stable SMC catalysts with self-enhancing interfacial activity in sustainable heterogeneous catalysis.
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Affiliation(s)
- Meiqi Gao
- Department
of Chemistry, Department of Gastroenterology and Hepatology, Zhongshan
Hospital, State Key Laboratory of Molecular Engineering of Polymers,
Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials,
Collaborative Innovation Center of Chemistry for Energy Materials
(iChEM), Fudan University, Shanghai200433, China
| | - Zhirong Yang
- State
Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai200237, China
| | - Haijiao Zhang
- Institute
of Nanochemistry and Nanobiology, School of Environmental and Chemical
Engineering, Shanghai University, Shanghai200444, People’s Republic of China
| | - Junhao Ma
- Department
of Chemistry, Department of Gastroenterology and Hepatology, Zhongshan
Hospital, State Key Laboratory of Molecular Engineering of Polymers,
Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials,
Collaborative Innovation Center of Chemistry for Energy Materials
(iChEM), Fudan University, Shanghai200433, China
| | - Yidong Zou
- Department
of Chemistry, Department of Gastroenterology and Hepatology, Zhongshan
Hospital, State Key Laboratory of Molecular Engineering of Polymers,
Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials,
Collaborative Innovation Center of Chemistry for Energy Materials
(iChEM), Fudan University, Shanghai200433, China
| | - Xiaowei Cheng
- Department
of Chemistry, Department of Gastroenterology and Hepatology, Zhongshan
Hospital, State Key Laboratory of Molecular Engineering of Polymers,
Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials,
Collaborative Innovation Center of Chemistry for Energy Materials
(iChEM), Fudan University, Shanghai200433, China
| | - Limin Wu
- Institute
of Energy and Materials Chemistry, Inner
Mongolia University, Hohhot010021, China
| | - Dongyuan Zhao
- Department
of Chemistry, Department of Gastroenterology and Hepatology, Zhongshan
Hospital, State Key Laboratory of Molecular Engineering of Polymers,
Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials,
Collaborative Innovation Center of Chemistry for Energy Materials
(iChEM), Fudan University, Shanghai200433, China
| | - Yonghui Deng
- Department
of Chemistry, Department of Gastroenterology and Hepatology, Zhongshan
Hospital, State Key Laboratory of Molecular Engineering of Polymers,
Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials,
Collaborative Innovation Center of Chemistry for Energy Materials
(iChEM), Fudan University, Shanghai200433, China
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14
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Sun L, Lv H, Feng J, Guselnikova O, Wang Y, Yamauchi Y, Liu B. Noble-Metal-Based Hollow Mesoporous Nanoparticles: Synthesis Strategies and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2201954. [PMID: 35695354 DOI: 10.1002/adma.202201954] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Indexed: 06/15/2023]
Abstract
As second-generation mesoporous materials, mesoporous noble metals (NMs) are of significant interest for their wide applications in catalysis, sensing, bioimaging, and biotherapy owing to their structural and metallic features. The introduction of interior hollow cavity into NM-based mesoporous nanoparticles (MNs), which subtly integrate hierarchical hollow and mesoporous structure into one nanoparticle, produces a new type of hollow MNs (HMNs). Benefiting from their higher active surface, better electron/mass transfer, optimum electronic structure, and nanoconfinement space, NM-based HMNs exhibit their high efficiency in enhancing catalytic activity and stability and tuning catalytic selectivity. In this review, recent progress in the design, synthesis, and catalytic applications of NM-based HMNs is summarized, including the findings of the groups. Five main strategies for synthesizing NM-based HMNs, namely silica-assisted surfactant-templated nucleation, surfactant-templated sequential nucleation, soft "dual"-template, Kirkendall effect in synergistic template, and galvanic-replacement-assisted surfactant template, are described in detail. In addition, the applications in ethanol oxidation electrocatalysis and hydrogenation reactions are discussed to highlight the high activity, enhanced stability, and optimal selectivity of NM-based HMNs in (electro)catalysis. Finally, the further outlook that may lead the directions of synthesis and applications of NM-based HMNs is prospected.
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Affiliation(s)
- Lizhi Sun
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Hao Lv
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Ji Feng
- Department of Chemistry, University of California Riverside, Riverside, CA, 92521, USA
| | - Olga Guselnikova
- JST-ERATO Yamauchi Materials Space-Tectonics Project, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Yanzhi Wang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Yusuke Yamauchi
- JST-ERATO Yamauchi Materials Space-Tectonics Project, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, 4072, Australia
- Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, 2-8-26 Nishi-Waseda, Shinjuku, Tokyo, 169-0051, Japan
| | - 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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15
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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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