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Cao X, Qiu Z, Chen J, Ai T. Self-Assembled Pt/MoCx/MWCNTs Nano Catalyst for Ethanol Electrooxidation of Fuel Cells. Front Chem 2022; 10:891640. [PMID: 35494650 PMCID: PMC9039006 DOI: 10.3389/fchem.2022.891640] [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: 03/08/2022] [Accepted: 03/28/2022] [Indexed: 11/17/2022] Open
Abstract
Direct ethanol fuel cells (DEFCs) have attracted more and more attention because of their unique advantages such as low cost and low toxicity. However, sluggish C-C bond cleavage during the ethanol electrooxidation reaction (EOR) in acidic media results in a lower energy yield and gravely hinders the commercialization of DEFCs. Therefore, it is very necessary to develop an anode catalyst with high performance, high stability and low cost to solve this problem. In this paper, Pt/MoCx/MWCNTs nanocomposites with different mass ratios of PtMo were obtained through a molecular self-assembly technology. The structure and morphology of Pt/MoCx/MWCNTs nanocomposites were characterized by several techniques such as XRD, FESEM, XPS, etc. The electrochemical performance and stability of Pt/WCx/MWCNTs electrocatalysts toward EOR were investigated in acid electrolytes. The results show that PtMo exists in the form of alloy. The size of Pt/MoCx nanoparticles is very uniform with an average size of ∼24 nm. The Pt/MoC0.25/MWCNTs exhibits excellent electrocatalytic activities with an electrochemically active surface area of 37.1 m2 g−1, a peak current density of 610.4 mA mgPt−1 and a steady-state current density of 39.8 mA mgPt−1 after 7,200 s, suggesting that the Pt/MoC0.25/MWCNTs is a very promising candidate for application in EOR of DEFCs.
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Affiliation(s)
- Xiaochang Cao
- School of Mechanical Engineering, Dongguan University of Technology, Dongguan, China
| | - Zhongming Qiu
- Dongguan JoySun New Energy Co. Ltd., Dongguan, China
| | - Jianjun Chen
- Dongguan JoySun New Energy Co. Ltd., Dongguan, China
| | - Tianyu Ai
- School of Mechanical Engineering, Dongguan University of Technology, Dongguan, China
- School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan, China
- *Correspondence: Tianyu Ai,
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Crawley JM, Gow IE, Lawes N, Kowalec I, Kabalan L, Catlow CRA, Logsdail AJ, Taylor SH, Dummer NF, Hutchings GJ. Heterogeneous Trimetallic Nanoparticles as Catalysts. Chem Rev 2022; 122:6795-6849. [PMID: 35263103 PMCID: PMC8949769 DOI: 10.1021/acs.chemrev.1c00493] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Indexed: 12/13/2022]
Abstract
The development and application of trimetallic nanoparticles continues to accelerate rapidly as a result of advances in materials design, synthetic control, and reaction characterization. Following the technological successes of multicomponent materials in automotive exhausts and photovoltaics, synergistic effects are now accessible through the careful preparation of multielement particles, presenting exciting opportunities in the field of catalysis. In this review, we explore the methods currently used in the design, synthesis, analysis, and application of trimetallic nanoparticles across both the experimental and computational realms and provide a critical perspective on the emergent field of trimetallic nanocatalysts. Trimetallic nanoparticles are typically supported on high-surface-area metal oxides for catalytic applications, synthesized via preparative conditions that are comparable to those applied for mono- and bimetallic nanoparticles. However, controlled elemental segregation and subsequent characterization remain challenging because of the heterogeneous nature of the systems. The multielement composition exhibits beneficial synergy for important oxidation, dehydrogenation, and hydrogenation reactions; in some cases, this is realized through higher selectivity, while activity improvements are also observed. However, challenges related to identifying and harnessing influential characteristics for maximum productivity remain. Computation provides support for the experimental endeavors, for example in electrocatalysis, and a clear need is identified for the marriage of simulation, with respect to both combinatorial element screening and optimal reaction design, to experiment in order to maximize productivity from this nascent field. Clear challenges remain with respect to identifying, making, and applying trimetallic catalysts efficiently, but the foundations are now visible, and the outlook is strong for this exciting chemical field.
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Affiliation(s)
- James
W. M. Crawley
- Max
Planck−Cardiff Centre on the Fundamentals of Heterogeneous
Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10
3AT, United Kingdom
| | - Isla E. Gow
- Max
Planck−Cardiff Centre on the Fundamentals of Heterogeneous
Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10
3AT, United Kingdom
| | - Naomi Lawes
- Max
Planck−Cardiff Centre on the Fundamentals of Heterogeneous
Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10
3AT, United Kingdom
| | - Igor Kowalec
- Max
Planck−Cardiff Centre on the Fundamentals of Heterogeneous
Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10
3AT, United Kingdom
| | - Lara Kabalan
- Max
Planck−Cardiff Centre on the Fundamentals of Heterogeneous
Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10
3AT, United Kingdom
| | - C. Richard A. Catlow
- Max
Planck−Cardiff Centre on the Fundamentals of Heterogeneous
Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10
3AT, United Kingdom
- UK
Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot OX11 OFA, U.K.
- Department
of Chemistry, University College London, Gordon Street, London WC1H 0AJ, U.K.
| | - Andrew J. Logsdail
- Max
Planck−Cardiff Centre on the Fundamentals of Heterogeneous
Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10
3AT, United Kingdom
| | - Stuart H. Taylor
- Max
Planck−Cardiff Centre on the Fundamentals of Heterogeneous
Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10
3AT, United Kingdom
| | - Nicholas F. Dummer
- Max
Planck−Cardiff Centre on the Fundamentals of Heterogeneous
Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10
3AT, United Kingdom
| | - Graham J. Hutchings
- Max
Planck−Cardiff Centre on the Fundamentals of Heterogeneous
Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10
3AT, United Kingdom
- UK
Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot OX11 OFA, U.K.
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Yin H, Xing K, Zhang Y, Dissanayake DMAS, Lu Z, Zhao H, Zeng Z, Yun JH, Qi DC, Yin Z. Periodic nanostructures: preparation, properties and applications. Chem Soc Rev 2021; 50:6423-6482. [PMID: 34100047 DOI: 10.1039/d0cs01146k] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Periodic nanostructures, a group of nanomaterials consisting of single or multiple nano units/components periodically arranged into ordered patterns (e.g., vertical and lateral superlattices), have attracted tremendous attention in recent years due to their extraordinary physical and chemical properties that offer a huge potential for a multitude of applications in energy conversion, electronic and optoelectronic applications. Recent advances in the preparation strategies of periodic nanostructures, including self-assembly, epitaxy, and exfoliation, have paved the way to rationally modulate their ferroelectricity, superconductivity, band gap and many other physical and chemical properties. For example, the recent discovery of superconductivity observed in "magic-angle" graphene superlattices has sparked intensive studies in new ways, creating superlattices in twisted 2D materials. Recent development in the various state-of-the-art preparations of periodic nanostructures has created many new ideas and findings, warranting a timely review. In this review, we discuss the current advances of periodic nanostructures, including their preparation strategies, property modulations and various applications.
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Affiliation(s)
- Hang Yin
- Research School of Chemistry, Australian National University, ACT 2601, Australia.
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Xie J, Yang H, Dong Q, Qin Q, Hu C, Yu G. Oxygen-rich PdSnCu nanocrystals with particle connection features as enhanced catalysts for ethanol oxidation reaction. NANOTECHNOLOGY 2021; 32:325704. [PMID: 33862606 DOI: 10.1088/1361-6528/abf8dc] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 04/16/2021] [Indexed: 06/12/2023]
Abstract
Most electrocatalysts show a high mass and special activity during the ethanol oxidation reaction, but those still suffer from limited stability, finite renewable capability and poor anti-poisoning durability. Furthermore, the reliable structure and appropriate composition of catalysts are fairly associated with the electrocatalysis performance. Herein, we report the development of trimetallic Pd61Sn34Cu5nanocrystals (NCs) whose rough surfaces are rich in step atoms and coupled with abundant of SnOxand CuO, which may effectively boost reaction activity and rapidly remove carbonaceous intermediate, respectively. Under the tuning on the composition, the defect rich Pd61Sn34Cu5NCs exhibit elevated electrocatalysis activity and durability for ethanol oxidation reaction with an optimized mass activity (1.26 AmgPd-1) and specific activity (10.6 mA cm-2), which is about 2.21 and 2.58 times greater than that of the commercial Pd/C catalyst (0.57 AmgPd-1and 4.1 mA cm-2).
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Affiliation(s)
- Jian Xie
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Hui Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Qizhi Dong
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Qian Qin
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Chao Hu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Gang Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
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