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Anil A, Bhagya TC, Bijimol BI, Sasidharan S, Meera MS, Shibli SMA. Architectural Decoration of Bioleached NiFeP Surfaces by Co 3O 4 Flowers for Efficient Electrocatalytic Hydrogen Generation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:42176-42188. [PMID: 39087237 DOI: 10.1021/acsami.4c07039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
In the quest for sustainable hydrogen production via water electrolysis, the development of high-performance, noble-metal-free catalytic systems is highly desired. Herein, we proposed an innovative strategy for the development of an electrocatalyst by refining the surface characteristics of a NiFeP alloy through microbiological techniques and subsequent enrichment of active sites by tailoring 3D hierarchical flower-like structures with intact and interconnected two-dimensional (2D) Co3O4. The resultant 3D Co3O4@NiFeP-5/24h has a porous structure comprised of intercrossed nanoparticles covering the entirety of the catalytic surface. This design ensures comprehensive electrolyte ion penetration and facilitates the release of gas bubbles while reducing bubble adhesion rates. Remarkably, the Co3O4@NiFeP-5/24h electrode demonstrates superior hydrogen evolution (HER) performance in an alkaline medium, characterized by its high stability, low overpotential (106 mV at a current density of 10 mA cm-2), and reduced Tafel slope (98 mV dec-1). Besides, the minimized interfacial contact resistance among the phases of electrode and electrolyte emphasizes the high HER performance of the 3D Co3O4@NiFeP-5/24h electrode. The innovative design and fabrication strategy employed herein holds significant potential for advancing the field of water-splitting electrocatalysis, offering a promising path toward the rational design and development of noble-metal-free electrocatalysts.
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Affiliation(s)
- Anaswara Anil
- Department of Chemistry, University of Kerala, Kariavattom Campus, Thiruvananthapuram 695 581, India
| | | | - Babu Indira Bijimol
- Department of Chemistry, University of Kerala, Kariavattom Campus, Thiruvananthapuram 695 581, India
| | - Sarika Sasidharan
- Centre for Renewable Energy and Materials, University of Kerala, Kariavattom Campus, Thiruvananthapuram 695 581, India
| | | | - Sheik Muhammadhu Aboobakar Shibli
- Department of Chemistry, University of Kerala, Kariavattom Campus, Thiruvananthapuram 695 581, India
- Centre for Renewable Energy and Materials, University of Kerala, Kariavattom Campus, Thiruvananthapuram 695 581, India
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2
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Tang S, Xie M, Yu S, Zhan X, Wei R, Wang M, Guan W, Zhang B, Wang Y, Zhou H, Zheng G, Liu Y, Warner JH, Yu G. General synthesis of high-entropy single-atom nanocages for electrosynthesis of ammonia from nitrate. Nat Commun 2024; 15:6932. [PMID: 39138150 DOI: 10.1038/s41467-024-51112-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 07/30/2024] [Indexed: 08/15/2024] Open
Abstract
Given the growing emphasis on energy efficiency, environmental sustainability, and agricultural demand, there's a pressing need for decentralized and scalable ammonia production. Converting nitrate ions electrochemically, which are commonly found in industrial wastewater and polluted groundwater, into ammonia offers a viable approach for both wastewater treatment and ammonia production yet limited by low producibility and scalability. Here we report a versatile and scalable solution-phase synthesis of high-entropy single-atom nanocages (HESA NCs) in which Fe and other five metals-Co, Cu, Zn, Cd, and In-are isolated via cyano-bridges and coordinated with C and N, respectively. Incorporating and isolating the five metals into the matrix of Fe resulted in Fe-C5 active sites with a minimized symmetry of lattice as well as facilitated water dissociation and thus hydrogenation process. As a result, the Fe-HESA NCs exhibited a high selectivity toward NH3 from the electrocatalytic reduction of nitrate with a Faradaic efficiency of 93.4% while maintaining a high yield rate of 81.4 mg h-1 mg-1.
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Affiliation(s)
- Sishuang Tang
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Minghao Xie
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Saerom Yu
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Xun Zhan
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Ruilin Wei
- Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Maoyu Wang
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Weixin Guan
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Bowen Zhang
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Yuyang Wang
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Hua Zhou
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Gengfeng Zheng
- Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Yuanyue Liu
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Jamie H Warner
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Guihua Yu
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA.
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He J, Tong Y, Wang Z, Zhou G, Ren X, Zhu J, Zhang N, Chen L, Chen P. Oxygenate-induced structural evolution of high-entropy electrocatalysts for multifunctional alcohol electrooxidation integrated with hydrogen production. Proc Natl Acad Sci U S A 2024; 121:e2405846121. [PMID: 39012829 PMCID: PMC11287272 DOI: 10.1073/pnas.2405846121] [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: 03/20/2024] [Accepted: 06/11/2024] [Indexed: 07/18/2024] Open
Abstract
High-entropy compounds have been emerging as promising candidates for electrolysis, yet their controllable electrosynthesis strategy remains a formidable challenge because of the ambiguous ionic interaction and codeposition mechanism. Herein, we report a oxygenates directionally induced electrodeposition strategy to construct high-entropy materials with amorphous features, on which the structural evolution from high-entropy phosphide to oxide is confirmed by introducing vanadate, thus realizing the simultaneous optimization of composition and structure. The representative P-CoNiMnWVOx shows excellent bifunctional catalytic performance toward alkaline hydrogen evolution reaction and ethanol oxidation reaction (EOR), with small potentials of -168 mV and 1.38 V at 100 mA cm-2, respectively. In situ spectroscopy illustrates that the electrochemical reconstruction of P-CoNiMnWVOx induces abundant Co-O species as the main catalytic active species for EOR and follows the conversion pathway of the C2 product. Theoretical calculations reveal the optimized electronic structure and adsorption free energy of reaction intermediates on P-CoNiMnWVOx, thereby resulting in a facilitated kinetic process. A membrane-free electrolyzer delivers both high Faradaic efficiencies of acetate and H2 over 95% and superior stability at100 mA cm-2 during 120 h electrolysis. In addition, the unique composition and structural advantages endow P-CoNiMnWVOx with multifunctional catalytic activity and realize multipathway electrosynthesis of formate-coupled hydrogen production.
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Affiliation(s)
- Jinfeng He
- School of Chemistry and Chemical Engineering, Department of Chemical Engineering, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang310018, China
| | - Yun Tong
- School of Chemistry and Chemical Engineering, Department of Chemical Engineering, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang310018, China
| | - Zhe Wang
- School of Chemistry and Chemical Engineering, Department of Chemical Engineering, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang310018, China
| | - Guorong Zhou
- School of Chemistry and Chemical Engineering, Department of Chemical Engineering, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang310018, China
| | - Xuhui Ren
- School of Chemistry and Chemical Engineering, Department of Chemical Engineering, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang310018, China
| | - Jiaye Zhu
- School of Chemistry and Chemical Engineering, Department of Chemical Engineering, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang310018, China
| | - Nan Zhang
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Sinopec Shanghai Research Institute of Petrochemical Technology Co., Ltd., Shanghai201208, China
| | - Lu Chen
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UKCB2 1EW
| | - Pengzuo Chen
- School of Chemistry and Chemical Engineering, Department of Chemical Engineering, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang310018, China
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Huang L, Ma L, Xu J, Wei B, Xue Y, Zhang N, Zhou X, Yang J, Liu ZH, Jiang R. Strong Electronic Interaction in High-Entropy Oxide Enhances Oxygen Evolution Reaction. Inorg Chem 2024; 63:12433-12444. [PMID: 38907721 DOI: 10.1021/acs.inorgchem.4c00778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/24/2024]
Abstract
High-entropy oxides are a new type of material with significant application potential. However, the lack of a universal HEO preparation method severely limits the property study and application of HEOs. Herein, we report a universal approach of spray pyrolysis for the preparation of various HEOs and study the electrocatalytic performance of HEOs toward the oxygen evolution reaction. FeCoNiMoWOx HEO exhibits an overpotential of 281 mV at 10 mA cm-2 and a Tafel slope of 34.5 mV dec-1, which are far superior to those of the corresponding medium-entropy oxide and low-entropy oxide. It is found that the high entropy of the HEO greatly strengthens the interaction between Fe and Mo/W and produces abundant oxygen vacancies (OVs) around Mo and W. This work not only provides a universal preparation method for HEOs but also deepens our understanding of OER catalytic activity of HEOs.
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Affiliation(s)
- Luo Huang
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Lixia Ma
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Jing Xu
- Experimental Teaching Department, Northwest Minzu University, Lanzhou 730030, P. R. China
| | - Baoqiang Wei
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Yanzhong Xue
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Nan Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Xiaojie Zhou
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Jie Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Zong-Huai Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Ruibin Jiang
- Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China
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5
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Zhang Y, Wang Z, Wang L, Zong L. Ultra-Small High-Entropy Alloy as Multi-Functional Catalyst for Ammonia Based Fuel Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2400892. [PMID: 38953333 DOI: 10.1002/smll.202400892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 06/06/2024] [Indexed: 07/04/2024]
Abstract
Ammonia fuel cells using carbon-neutral ammonia as fuel are regarded as a fast, furious, and flexible next-generation carbon-free energy conversion technology, but it is limited by the kinetically sluggish ammonia oxidation reaction (AOR), oxygen reduction reaction (ORR), and hydrogen evolution reaction (HER). Platinum can efficiently drive these three types of reactions, but its scale-up application is limited by its susceptibility to poisoning and high cost. In order to reduce the cost and alleviate poisoning, incorporating Pt with various metals proves to be an efficient and feasible strategy. Herein, PtFeCoNiIr/C trifunctional high-entropy alloy (HEA) catalysts are prepared with uniform mixing and ultra-small size of 2 ± 0.5 nm by Joule heating method. PtFeCoNiIr/C exhibits efficient performance in AOR (Jpeak = 139.8 A g-1 PGM), ORR (E1/2 = 0.87 V), and HER (E10 = 20.3 mV), outperforming the benchmark Pt/C, and no loss in HER performance at 100 mA cm-2 for 200 h. The almost unchanged E1/2 in the anti-poisoning test indicates its promising application in real fuel cells powered by ammonia. This work opens up a new path for the development of multi-functional electrocatalysts and also makes a big leap toward the exploration of cost-effective device configurations for novel fuel cells.
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Affiliation(s)
- Yuanyuan Zhang
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Zumin Wang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 1 North 2nd Street, Zhongguancun, Haidian District, Beijing, 100190, China
| | - Lei Wang
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Lingbo Zong
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
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6
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Ahmad A, Nairan A, Feng Z, Zheng R, Bai Y, Khan U, Gao J. Unlocking the Potential of High Entropy Alloys in Electrochemical Water Splitting: A Review. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311929. [PMID: 38396229 DOI: 10.1002/smll.202311929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/04/2024] [Indexed: 02/25/2024]
Abstract
The global pursuit of sustainable energy is focused on producing hydrogen through electrocatalysis driven by renewable energy. Recently, High entropy alloys (HEAs) have taken the spotlight in electrolysis due to their intriguing cocktail effect, broad design space, customizable electronic structure, and entropy stabilization effect. The tunability and complexity of HEAs allow a diverse range of active sites, optimizing adsorption strength and activity for electrochemical water splitting. This review comprehensively covers contemporary advancements in synthesis technique, design framework, and physio-chemical evaluation approaches for HEA-based electrocatalysts. Additionally, it explores design principles and strategies aimed at optimizing the catalytic activity, stability, and effectiveness of HEAs in hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and overall water splitting. Through an in-depth investigation of these aspects, the complexity inherent in constituent element interactions, reaction processes, and active sites associated with HEAs is aimed to unravel. Eventually, an outlook regarding challenges and impending difficulties and an outline of the future direction of HEA in electrocatalysis is provided. The thorough knowledge offered in this review will assist in formulating and designing catalysts based on HEAs for the next generation of electrochemistry-related applications.
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Affiliation(s)
- Abrar Ahmad
- Institute of Functional Porous Materials, School of Material Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Adeela Nairan
- Institute of Functional Porous Materials, School of Material Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Zhuo Feng
- Institute of Functional Porous Materials, School of Material Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Ruiming Zheng
- Institute of Functional Porous Materials, School of Material Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Yelin Bai
- Institute of Functional Porous Materials, School of Material Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Usman Khan
- Institute of Functional Porous Materials, School of Material Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Junkuo Gao
- Institute of Functional Porous Materials, School of Material Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
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7
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Ran B, Li H, Cheng R, Yang Z, Zhong Y, Qin Y, Yang C, Fu C. High-Entropy Oxides for Rechargeable Batteries. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2401034. [PMID: 38647393 PMCID: PMC11220673 DOI: 10.1002/advs.202401034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 04/01/2024] [Indexed: 04/25/2024]
Abstract
High-entropy oxides (HEOs) have garnered significant attention within the realm of rechargeable batteries owing to their distinctive advantages, which encompass diverse structural attributes, customizable compositions, entropy-driven stabilization effects, and remarkable superionic conductivity. Despite the brilliance of HEOs in energy conversion and storage applications, there is still lacking a comprehensive review for both entry-level and experienced researchers, which succinctly encapsulates the present status and the challenges inherent to HEOs, spanning structural features, intrinsic properties, prevalent synthetic methodologies, and diversified applications in rechargeable batteries. Within this review, the endeavor is to distill the structural characteristics, ionic conductivity, and entropy stabilization effects, explore the practical applications of HEOs in the realm of rechargeable batteries (lithium-ion, sodium-ion, and lithium-sulfur batteries), including anode and cathode materials, electrolytes, and electrocatalysts. The review seeks to furnish an overview of the evolving landscape of HEOs-based cell component materials, shedding light on the progress made and the hurdles encountered, as well as serving as the guidance for HEOs compositions design and optimization strategy to enhance the reversible structural stability, electrical properties, and electrochemical performance of rechargeable batteries in the realm of energy storage and conversion.
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Affiliation(s)
- Biao Ran
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced High‐temperature Materials and Precision FormingShanghai Jiao Tong UniversityShanghai200240China
| | - Huanxin Li
- Physical & Theoretical Chemistry Laboratory, Department of ChemistryUniversity of OxfordSouth Parks RoadOxfordOX1 3QZUK
| | - Ruiqi Cheng
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced High‐temperature Materials and Precision FormingShanghai Jiao Tong UniversityShanghai200240China
| | - Zhaohui Yang
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced High‐temperature Materials and Precision FormingShanghai Jiao Tong UniversityShanghai200240China
| | - Yi Zhong
- Faculty of Materials Science and Energy Engineering/Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen518055China
| | - Yonghong Qin
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced High‐temperature Materials and Precision FormingShanghai Jiao Tong UniversityShanghai200240China
| | - Chao Yang
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced High‐temperature Materials and Precision FormingShanghai Jiao Tong UniversityShanghai200240China
| | - Chaopeng Fu
- School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced High‐temperature Materials and Precision FormingShanghai Jiao Tong UniversityShanghai200240China
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Huang X, Wu Z, Zhang B, Yang G, Wang HF, Wang H, Cao Y, Peng F, Li S, Yu H. Formation of Disordered High-Entropy-Alloy Nanoparticles for Highly Efficient Hydrogen Electrocatalysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311631. [PMID: 38513241 DOI: 10.1002/smll.202311631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/31/2024] [Indexed: 03/23/2024]
Abstract
Nanoparticles composed of high-entropy alloys (HEA NPs) exhibit remarkable performance in electrocatalytic processes such as hydrogen evolution and oxidations. In this study, two types of quinary HEA NPs of PtRhPdIrRu, are synthesized, featuring disordered and crystallized nanostructures, both with and without a boiling mixture. The disordered HEA NPs (d-HEA NPs) with a size of 3.5 nm is synthesized under intense boiling conditions, attributed to improved heat and mass transfer during reduction of precursors and particle growth. The disordered HEA NPs displayed an exceptionally high turnover frequency of 33.1 s-1 at an overpotential of 50 mV, surpassing commercial Pt NPs in acidic electrolytes by 5.4 times. Additionally, d-HEA NPs exhibited superior stability at a constant electrolyzing current of 50 mA cm-2 compared to commercial Pt NPs. When employed as the anodic catalyst in an H2-O2 fuel cell, d-HEA NPs demonstrated a remarkable high current power density of 15.3 kW per gram of noble metal. Consequently, these findings highlight the potential of d-HEA NPs in electrochemical applications involving hydrogen.
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Affiliation(s)
- Xianfeng Huang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, China
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, China
| | - Zenan Wu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Bo Zhang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Guangxing Yang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Hao-Fan Wang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Hongjuan Wang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Yonghai Cao
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Feng Peng
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Shuang Li
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, China
| | - Hao Yu
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, China
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9
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Yuan G, Ruiz Pestana L. The Effect of Surface Oxygen Coverage on the Oxygen Evolution Reaction over a CoFeNiCr High-Entropy Alloy. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1058. [PMID: 38921934 PMCID: PMC11206725 DOI: 10.3390/nano14121058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 06/14/2024] [Accepted: 06/17/2024] [Indexed: 06/27/2024]
Abstract
Developing cost-effective and highly active electrocatalysts for the oxygen evolution reaction (OER) is crucial for advancing sustainable energy applications. High-entropy alloys (HEAs) made from earth-abundant transition metals, thanks to their remarkable stability and electrocatalytic performance, provide a promising alternative to expensive electrocatalysts typically derived from noble metals. While pristine HEA surfaces have been theoretically investigated, and the effect of oxygen coverage on conventional metal electrocatalysts has been examined, the impact of surface oxygen coverage on the electrocatalytic performance of HEAs remains poorly understood. To bridge this gap, we employ density functional theory (DFT) calculations to reconstruct the free energy diagram of OER intermediates on CoFeNiCr HEA surfaces with varying oxygen coverages, evaluating their impact on the rate-limiting step and theoretical overpotential. Our findings reveal that increased oxygen coverage weakens the adsorption of HO* and O*, but not HOO*. As a result, the theoretical overpotential for the OER decreases with higher oxygen coverage, and the rate-limiting step shifts from the third oxidation step (HOO* formation) at low coverage to the first oxidation step (HO* formation) at higher coverage.
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Affiliation(s)
- Geng Yuan
- Department of Chemical, Environmental and Materials Engineering, University of Miami, Coral Gables, FL 33146, USA;
| | - Luis Ruiz Pestana
- Department of Civil and Architectural Engineering, University of Miami, Coral Gables, FL 33146, USA
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10
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Wu DH, Ul Haq M, Zhang L, Feng JJ, Yang F, Wang AJ. Noble metal-free FeCoNiMnV high entropy alloy anchored on N-doped carbon nanotubes with prominent activity and durability for oxygen reduction and zinc-air batteries. J Colloid Interface Sci 2024; 662:149-159. [PMID: 38340514 DOI: 10.1016/j.jcis.2024.02.044] [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: 11/30/2023] [Revised: 01/26/2024] [Accepted: 02/04/2024] [Indexed: 02/12/2024]
Abstract
Efficient and stable oxygen reduction reaction (ORR) catalysts are essential for constructing reliable energy conversion and storage devices. Herein, we prepared noble metal-free FeCoNiMnV high-entropy alloy supported on nitrogen-doped carbon nanotubes (FeCoNiMnV HEA/N-CNTs) by a one-step pyrolysis at 800 °C, as certificated by a set of characterizations. The graphitization degree of the N-CHTs was optimized by tuning the pyrolysis temperature in the control groups. The resultant catalyst greatly enhanced the ORR characteristics in the alkaline media, showing the positive onset potential (Eonset) of 0.99 V and half-wave potential (E1/2) of 0.85 V. More importantly, the above FeCoNiMnV HEA/N-CNTs assembled Zn-air battery exhibited a greater open-circuit voltage (1.482 V), larger power density (185.12 mW cm-2), and outstanding cycle stability (1698 cycles, 566 h). This study provides some valuable insights on developing sustainable ORR catalysts in Zn-air batteries.
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Affiliation(s)
- Dong-Hui Wu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Mahmood Ul Haq
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Lu Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Jiu-Ju Feng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Fa Yang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Ai-Jun Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
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11
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Shen T, Xiao D, Deng Z, Wang S, An L, Song M, Zhang Q, Zhao T, Gong M, Wang D. Stabilizing Diluted Active Sites of Ultrasmall High-Entropy Intermetallics for Efficient Formic Acid Electrooxidation. Angew Chem Int Ed Engl 2024; 63:e202403260. [PMID: 38503695 DOI: 10.1002/anie.202403260] [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: 02/15/2024] [Revised: 03/08/2024] [Accepted: 03/19/2024] [Indexed: 03/21/2024]
Abstract
The poisoning of undesired intermediates or impurities greatly hinders the catalytic performances of noble metal-based catalysts. Herein, high-entropy intermetallics i-(PtPdIrRu)2FeCu (HEI) are constructed to inhibit the strongly adsorbed carbon monoxide intermediates (CO*) during the formic acid oxidation reaction. As probed by multiple-scaled structural characterizations, HEI nanoparticles are featured with partially negative Pt oxidation states, diluted Pt/Pd/Ir/Ru atomic sites and ultrasmall average size less than 2 nm. Benefiting from the optimized structures, HEI nanoparticles deliver more than 10 times promotion in intrinsic activity than that of pure Pt, and well-enhanced mass activity/durability than that of ternary i-Pt2FeCu intermetallics counterpart. In situ infrared spectroscopy manifests that both bridge and top CO* are favored on pure Pt but limited on HEI. Further theoretical elaboration indicates that HEI displayed a much weaker binding of CO* on Pt sites and sluggish diffusion of CO* among different sites, in contrast to pure Pt that CO* bound more strongly and was easy to diffuse on larger Pt atomic ensembles. This work verifies that HEIs are promising catalysts via integrating the merits of intermetallics and high-entropy alloys.
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Affiliation(s)
- Tao Shen
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Dongdong Xiao
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Zhiping Deng
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Shuang Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Lulu An
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Min Song
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Qian Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Tonghui Zhao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Mingxing Gong
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Deli Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
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12
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Zhang R, Zhang Y, Xiao B, Zhang S, Wang Y, Cui H, Li C, Hou Y, Guo Y, Yang T, Fan J, Zhi C. Phase Engineering of High-Entropy Alloy for Enhanced Electrocatalytic Nitrate Reduction to Ammonia. Angew Chem Int Ed Engl 2024:e202407589. [PMID: 38703065 DOI: 10.1002/anie.202407589] [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: 04/22/2024] [Accepted: 05/03/2024] [Indexed: 05/06/2024]
Abstract
Directly electrochemical conversion of nitrate (NO3 -) is an efficient and environmentally friendly technology for ammonia (NH3) production but is challenged by highly selective electrocatalysts. High-entropy alloys (HEAs) with unique properties are attractive materials in catalysis, particularly for multi-step reactions. Herein, we first reported the application of HEA (FeCoNiAlTi) for electrocatalytic NO3 - reduction to NH3 (NRA). The bulk HEA is active for NRA but limited by the unsatisfied NH3 yield of 0.36 mg h-1 cm-2 and Faradaic efficiency (FE) of 82.66 %. Through an effective phase engineering strategy, uniform intermetallic nanoparticles are introduced on the bulk HEA to increase electrochemical active surface area and charge transfer efficiency. The resulting nanostructured HEA (n-HEA) delivers enhanced electrochemical NRA performance in terms of NH3 yield (0.52 mg h-1 cm-2) and FE (95.23 %). Further experimental and theoretical investigations reveal that the multi-active sites (Fe, Co, and Ni) dominated electrocatalysis for NRA over the n-HEA. Notably, the typical Co sites exhibit the lowest energy barrier for NRA with *NH2 to *NH3as the rate-determining step.
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Affiliation(s)
- Rong Zhang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Yaqin Zhang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Bo Xiao
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Shaoce Zhang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Yanbo Wang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Huilin Cui
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Chuan Li
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Yue Hou
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Ying Guo
- College of Materials Science and Engineering, Shenzhen University, Shenzhen, Guangdong, 518055, China
| | - Tao Yang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Jun Fan
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Chunyi Zhi
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
- Centre for Functional Photonics, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
- Hong Kong Institute for Advanced Study, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
- Hong Kong Center for Cerebro-Cardiovascular Health Engineering (COCHE), Shatin, NT, HKSAR, 999077, China
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13
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Ling X, Ao Y, Zheng J, Han M, Xu D. Facile Synthesis of High-Entropy Alloy Nanowires for Electrocatalytic Alcohol Oxidation. Chempluschem 2024; 89:e202400010. [PMID: 38238259 DOI: 10.1002/cplu.202400010] [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: 01/05/2024] [Revised: 01/16/2024] [Indexed: 02/02/2024]
Abstract
Considering the structural and compositional advantages of high-entropy alloy (HEA) as high-efficient electrocatalysts, we here present a facile method to prepare high-entropy alloy nanowires with seven elements in an aqueous solution. The as-synthesized PdPtCuAgAuPbCo nanowires possess dispersed one-dimensional morphology and exhibit enhanced electrocatalytic performance with the mass activity of 9.9 A mgPd+Pt -1 toward ethanol electrooxidation. The HEA nanowires also perform superior stability, resistance to CO poisoning, and good electrocatalytic activities toward other alcohols (e. g., ethylene glycol and methanol) oxidation. The synthesis strategy is easy to operate with low cost and has wide application prospects for preparing desired electrocatalysts for fuel cells.
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Affiliation(s)
- Xinyi Ling
- Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Yunyun Ao
- Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Jinyu Zheng
- Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Min Han
- Fujian Cross Strait Institute of Flexible Electronics (Future Technology), Fujian Normal University, Fuzhou, 350117, P. R. China
| | - Dongdong Xu
- Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
- State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210023, P. R. China
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14
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Zhou X, Zou L, Zhu H, Yan M, Wang J, Lan S, Chen S, Hahn H, Feng T. N-Doping Effects On Electrocatalytic Water Splitting of Non-Noble High-Entropy Alloy Nanoparticles Prepared by Inert Gas Condensation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310327. [PMID: 38098433 DOI: 10.1002/smll.202310327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Indexed: 05/25/2024]
Abstract
The unique catalytic activities of high-entropy alloys (HEAs) emerge from the complex interaction among different elements in a single-phase solid solution. As a "green" nanofabrication technique, inert gas condensation (IGC) combined with laser source opens up a highly efficient avenue to develop HEA nanoparticles (NPs) for catalysis and energy storage. In this work, the novel N-doped non-noble HEA NPs are designed and successfully prepared by IGC. The N-doping effects of HEA NPs on oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) are systematically investigated. The results show that N-doping is conducive to improving the OER, but unfavorable for HER activity. The FeCoNiCrN NPs achieve an overpotential of 269.7 mV for OER at a current density of 10 mA cm-2 in 1.0 M KOH solution, which is among the best reported values for non-noble HEA catalysts. The effects of the differences in electronegativity, ionization energy and electron affinity energy among mixed elements in N-doped HEAs are discussed as inducing electron transfer efficiency. Combined with X-ray photoelectron spectroscopy and the extended X-ray absorption fine structure analysis, an element-design strategy in N-doped HEAs electrocatalysts is proposed to improve the intrinsic activity and ameliorate water splitting performance.
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Affiliation(s)
- Xuechun Zhou
- Herbert Gleiter Institute of Nanoscience, School of Material Science and Engineering, Nanjing Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Lvyu Zou
- Herbert Gleiter Institute of Nanoscience, School of Material Science and Engineering, Nanjing Nanjing University of Science and Technology, Nanjing, 210094, China
| | - He Zhu
- Herbert Gleiter Institute of Nanoscience, School of Material Science and Engineering, Nanjing Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Mengyang Yan
- Herbert Gleiter Institute of Nanoscience, School of Material Science and Engineering, Nanjing Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Junjie Wang
- Herbert Gleiter Institute of Nanoscience, School of Material Science and Engineering, Nanjing Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Si Lan
- Herbert Gleiter Institute of Nanoscience, School of Material Science and Engineering, Nanjing Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Shuangqin Chen
- Herbert Gleiter Institute of Nanoscience, School of Material Science and Engineering, Nanjing Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Horst Hahn
- Herbert Gleiter Institute of Nanoscience, School of Material Science and Engineering, Nanjing Nanjing University of Science and Technology, Nanjing, 210094, China
- Institute of Nanotechnology, Karlsruhe Institute of Technology, 76021, Karlsruhe, Germany
| | - Tao Feng
- Herbert Gleiter Institute of Nanoscience, School of Material Science and Engineering, Nanjing Nanjing University of Science and Technology, Nanjing, 210094, China
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15
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Wang D, Lu XF, Luan D, Lou XWD. Selective Electrocatalytic Conversion of Nitric Oxide to High Value-Added Chemicals. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2312645. [PMID: 38271637 DOI: 10.1002/adma.202312645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 12/30/2023] [Indexed: 01/27/2024]
Abstract
The artificial disturbance in the nitrogen cycle has necessitated an urgent need for nitric oxide (NO) removal. Electrochemical technologies for NO conversion have gained increasing attention in recent years. This comprehensive review presents the recent advancements in selective electrocatalytic conversion of NO to high value-added chemicals, with specific emphasis on catalyst design, electrolyte composition, mass diffusion, and adsorption energies of key intermediate species. Furthermore, the review explores the synergistic electrochemical co-electrolysis of NO with specific carbon source molecules, enabling the synthesis of a range of valuable chemicals with C─N bonds. It also provides in-depth insights into the intricate reaction pathways and underlying mechanisms, offering valuable perspectives on the challenges and prospects of selective NO electrolysis. By advancing comprehension and fostering awareness of nitrogen cycle balance, this review contributes to the development of efficient and sustainable electrocatalytic systems for the selective synthesis of valuable chemicals from NO.
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Affiliation(s)
- Dongdong Wang
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center, City University of Hong Kong, Hong Kong, 999077, China
| | - Xue Feng Lu
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Deyan Luan
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Xiong Wen David Lou
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
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16
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Tan Z, Huang B. Independent Multiple-Atom-Site Functionality in Composition Adjustable Immiscible Ru-Rh-Pd-Pt Solid-Solution High-Entropy Alloys for NO x Reduction Outperforming Rh. Angew Chem Int Ed Engl 2024; 63:e202400496. [PMID: 38390642 DOI: 10.1002/anie.202400496] [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: 01/08/2024] [Revised: 02/11/2024] [Accepted: 02/21/2024] [Indexed: 02/24/2024]
Abstract
The high-entropy-alloy (HEA) nanoparticles with four, five or more metals significantly can yield the developments of functional materials with excellent performances in various reactions. However, the underlying reaction mechanisms of heterogeneous catalysis for HEA have been rarely investigated, due to their diverse elements and complex compositions. In this study, we successfully synthesized the homogeneously dispersed Ru-Rh-Pd-Pt HEA with adjustable compositions, as the multiple-atom-site catalysts (MASC). In the NOx reduction performance tests, Ru0.4 (Rh0.33Pd0.33Pt0.33)0.6 MASC showed the highest activity, which was significantly improved compared to that of the best monometal Rh, with the light-off temperature decreasing by ca. 50 °C. The Fourier transform infrared measurements revealed that the outstanding activity of Ru-Rh-Pd-Pt MASC was attributable to the well-coupled elementary steps of the CO adsorption, NO adsorption, NO dissociation and O spillover on the Ru, Rh, Rh-Pd and Pt sites, respectively, which explained the first clear reaction mechanism in heterogeneous catalysis for HEA.
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Affiliation(s)
- Zhe Tan
- National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi'an Jiaotong University, Innovation Harbour, Xi-xian New District, Xi'an, 712-000, China
| | - Bo Huang
- National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi'an Jiaotong University, Innovation Harbour, Xi-xian New District, Xi'an, 712-000, China
- Institute of Chemical Engineering and Technology Xi'an Jiaotong University, Innovation Harbour, Xi-xian New District, Xi'an, 712-000, China
- School of Future Technology, Xi'an Jiaotong University, Innovation Harbour, Xi-xian New District, Xi'an, 712-000, China
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17
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Guo L, Zhou J, Liu F, Meng X, Ma Y, Hao F, Xiong Y, Fan Z. Electronic Structure Design of Transition Metal-Based Catalysts for Electrochemical Carbon Dioxide Reduction. ACS NANO 2024; 18:9823-9851. [PMID: 38546130 DOI: 10.1021/acsnano.4c01456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
With the increasingly serious greenhouse effect, the electrochemical carbon dioxide reduction reaction (CO2RR) has garnered widespread attention as it is capable of leveraging renewable energy to convert CO2 into value-added chemicals and fuels. However, the performance of CO2RR can hardly meet expectations because of the diverse intermediates and complicated reaction processes, necessitating the exploitation of highly efficient catalysts. In recent years, with advanced characterization technologies and theoretical simulations, the exploration of catalytic mechanisms has gradually deepened into the electronic structure of catalysts and their interactions with intermediates, which serve as a bridge to facilitate the deeper comprehension of structure-performance relationships. Transition metal-based catalysts (TMCs), extensively applied in electrochemical CO2RR, demonstrate substantial potential for further electronic structure modulation, given their abundance of d electrons. Herein, we discuss the representative feasible strategies to modulate the electronic structure of catalysts, including doping, vacancy, alloying, heterostructure, strain, and phase engineering. These approaches profoundly alter the inherent properties of TMCs and their interaction with intermediates, thereby greatly affecting the reaction rate and pathway of CO2RR. It is believed that the rational electronic structure design and modulation can fundamentally provide viable directions and strategies for the development of advanced catalysts toward efficient electrochemical conversion of CO2 and many other small molecules.
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Affiliation(s)
- Liang Guo
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
| | - Jingwen Zhou
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
| | - Fu Liu
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
| | - Xiang Meng
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
| | - Yangbo Ma
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
| | - Fengkun Hao
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
| | - Yuecheng Xiong
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
| | - Zhanxi Fan
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
- Hong Kong Institute for Clean Energy (HKICE), City University of Hong Kong, Hong Kong 999077, China
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18
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Balcerzak M, Ponsoni J, Petersen H, Menéndez C, Ternieden J, Zhang L, Winkelmann F, Aguey-Zinsou KF, Hirscher M, Felderhoff M. Hydrogen-Stabilized ScYNdGd Medium-Entropy Alloy for Hydrogen Storage. J Am Chem Soc 2024; 146:5283-5294. [PMID: 38354317 PMCID: PMC10910561 DOI: 10.1021/jacs.3c11943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/23/2023] [Accepted: 01/19/2024] [Indexed: 02/16/2024]
Abstract
The research on the functional properties of medium- and high-entropy alloys (MEAs and HEAs) has been in the spotlight recently. Many significant discoveries have been made lately in hydrogen-based economy-related research where these alloys may be utilized in all of its key sectors: water electrolysis, hydrogen storage, and fuel cell applications. Despite the rapid development of MEAs and HEAs with the ability to reversibly absorb hydrogen, the research is limited to transition-metal-based alloys that crystallize in body-centered cubic solid solution or Laves phase structures. To date, no study has been devoted to the hydrogenation of rare-earth-element (REE)-based MEAs or HEAs, as well as to the alloys crystallizing in face-centered-cubic (FCC) or hexagonal-close-packed structures. Here, we elucidate the formation and hydrogen storage properties of REE-based ScYNdGd MEA. More specifically, we present the astounding stabilization of the single-phase FCC structure induced by the hydrogen absorption process. Moreover, the measured unprecedented high storage capacity of 2.5 H/M has been observed after hydrogenation conducted under mild conditions that proceeded without any phase transformation in the material. The studied MEA can be facilely activated, even after a long passivation time. The results of complementary measurements showed that the hydrogen desorption process proceeds in two steps. In the first, hydrogen is released from octahedral interstitial sites at relatively low temperatures. In the second, high-temperature process, it is associated with the desorption of hydrogen atoms stored in tetrahedral sites. The presented results may impact future research of a novel group of REE-based MEAs and HEAs with adaptable hydrogen storage properties and a broad scope of possible applications.
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Affiliation(s)
- Mateusz Balcerzak
- Heterogeneous
Catalysis Department, Max-Planck-Institut
für Kohlenforschung, Mülheim
an der Ruhr 45470, Germany
- Institute
of Materials Science and Engineering, Poznan
University of Technology, Poznan 61-138, Poland
| | - Jéssica
Bruna Ponsoni
- Heterogeneous
Catalysis Department, Max-Planck-Institut
für Kohlenforschung, Mülheim
an der Ruhr 45470, Germany
- Graduate
Program in Materials Science and Engineering (PPGCEM/UFSCar), Federal University of Sao Carlos, São Carlos, São Paulo CEP 13565-905, Brazil
| | - Hilke Petersen
- Heterogeneous
Catalysis Department, Max-Planck-Institut
für Kohlenforschung, Mülheim
an der Ruhr 45470, Germany
| | - César Menéndez
- MERLin,
School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia
| | - Jan Ternieden
- Heterogeneous
Catalysis Department, Max-Planck-Institut
für Kohlenforschung, Mülheim
an der Ruhr 45470, Germany
| | - Linda Zhang
- Max-Planck-Institut
für Intelligente Systeme, Stuttgart 70569, Germany
- Advanced
Institute for Materials Research, Tohoku
University, Katahira
2-1-1, Aoba-ku, Sendai 980-8577, Japan
| | - Frederik Winkelmann
- Heterogeneous
Catalysis Department, Max-Planck-Institut
für Kohlenforschung, Mülheim
an der Ruhr 45470, Germany
| | | | - Michael Hirscher
- Max-Planck-Institut
für Intelligente Systeme, Stuttgart 70569, Germany
- Advanced
Institute for Materials Research, Tohoku
University, Katahira
2-1-1, Aoba-ku, Sendai 980-8577, Japan
| | - Michael Felderhoff
- Heterogeneous
Catalysis Department, Max-Planck-Institut
für Kohlenforschung, Mülheim
an der Ruhr 45470, Germany
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19
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Cheng W, Sun C, Liu W, Wang Z. High-Entropy Alloy PtCuNiCoMn Nanoparticles on rGO for Electrooxidation of Methanol and Formic Acid. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:2343-2351. [PMID: 38230630 DOI: 10.1021/acs.langmuir.3c03540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
High-entropy alloy (HEA) nanoparticles have attracted great attention due to their excellent electrocatalytic properties. Herein, PtCuNiCoMn HEA nanoparticles supported on reduced graphene oxide (rGO) are synthesized via a solvothermal co-reduction method and are used as an electrocatalyst for the electrooxidation of methanol and formic acid. Owing to the synergistic effect between the component metals, the high-entropy effect, and the sluggish diffusion effect, the PtCuNiCoMn HEA nanoparticles possess significantly improved electrocatalytic activity and stability compared to PtCuNiCo, PtCuNi, PtCu, Pt nanoparticles, and the commercial Pt/C catalyst. The results reveal the unique advantages of HEA nanoparticles in the field of electrocatalysis. The synthesis method is simple and effective, which may be valuable for the preparation of other HEA electrocatalysts.
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Affiliation(s)
- Wenting Cheng
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, People's Republic of China
| | - Chengrui Sun
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, People's Republic of China
| | - Wen Liu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, People's Republic of China
| | - Zhenghua Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, People's Republic of China
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20
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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: 10] [Impact Index Per Article: 10.0] [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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21
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Xiao L, Wang Z, Guan J. Optimization strategies of high-entropy alloys for electrocatalytic applications. Chem Sci 2023; 14:12850-12868. [PMID: 38023509 PMCID: PMC10664458 DOI: 10.1039/d3sc04962k] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023] Open
Abstract
High-entropy alloys (HEAs) are expected to become one of the most promising functional materials in the field of electrocatalysis due to their site-occupancy disorder and lattice order. The chemical complexity and component tunability make it possible for them to obtain a nearly continuous distribution of adsorption energy curve, which means that the optimal adsorption strength and maximum activity can be obtained by a multi-alloying strategy. In the last decade, a great deal of research has been performed on the synthesis, element selection and catalytic applications of HEAs. In this review, we focus on the analysis and summary of the advantages, design ideas and optimization strategies of HEAs in electrocatalysis. Combined with experiments and theories, the advantages of high activity and high stability of HEAs are explored in depth. According to the classification of catalytic reactions, how to design high-performance HEA catalysts is proposed. More importantly, efficient strategies for optimizing HEA catalysts are provided, including element regulation, defect regulation and strain engineering. Finally, we point out the challenges that HEAs will face in the future, and put forward some personal proposals. This work provides a deep understanding and important reference for electrocatalytic applications of HEAs.
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Affiliation(s)
- Liyuan Xiao
- Institute of Physical Chemistry, College of Chemistry, Jilin University Changchun 130021 PR China
| | - Zhenlu Wang
- Institute of Physical Chemistry, College of Chemistry, Jilin University Changchun 130021 PR China
| | - Jingqi Guan
- Institute of Physical Chemistry, College of Chemistry, Jilin University Changchun 130021 PR China
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22
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Wang Y, Yang P, Gong Y, Xiao Z, Xiao W, Xin L, Wu Z, Wang L. CoNiFe alloy nanoparticles encapsulated into nitrogen-doped carbon nanotubes toward superior electrocatalytic overall water splitting in alkaline freshwater/seawater under large-current density. J Chem Phys 2023; 159:134701. [PMID: 37787139 DOI: 10.1063/5.0168354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 08/31/2023] [Indexed: 10/04/2023] Open
Abstract
Developing bifunctional catalysts for overall water splitting with high activity and durability at high current density remains a challenge. In an attempt to overcome this bottleneck, in this work, unique CoNiFe-layered double hydroxide nanoflowers are in situ grown on nickel-iron (NiFe) foam through a corrosive approach and following a chemical vapor deposition process to generate nitrogen-doped carbon nanotubes at the presence of melamine (CoNiFe@NCNTs). The coupling effects between various metal species act a key role in accelerating the reaction kinetics. Moreover, the in situ formed NCNTs also favor promoting electrocatalytic activity and stability. For oxygen evolution reaction it requires low overpotentials of 330 and 341 mV in 1M KOH and 1M KOH + seawater to drive 500 mA cm-2. Moreover, water electrolysis can be operated with CoNiFe@NCNTs as both anode and cathode with small voltages of 1.95 and 1.93 V to achieve 500 mA cm-2 in 1M KOH and 1M KOH + seawater, respectively.
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Affiliation(s)
- Yue Wang
- Key Laboratory of Eco-Chemical Engineering, Ministry of Education, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042 Shandong, China
| | - Pengfei Yang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yuecheng Gong
- Key Laboratory of Eco-Chemical Engineering, Ministry of Education, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042 Shandong, China
| | - Zhenyu Xiao
- Key Laboratory of Eco-Chemical Engineering, Ministry of Education, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042 Shandong, China
| | - Weiping Xiao
- College of Science, Nanjing Forestry University, Nanjing, 210037 Jiangsu, China
| | - Liantao Xin
- Key Laboratory of Eco-Chemical Engineering, Ministry of Education, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042 Shandong, China
| | - Zexing Wu
- Key Laboratory of Eco-Chemical Engineering, Ministry of Education, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042 Shandong, China
| | - Lei Wang
- Key Laboratory of Eco-Chemical Engineering, Ministry of Education, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042 Shandong, China
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23
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Magotra VK, Magotra A, Mali SS, Jeon HC, Kang TW, Salunke AS, Hong CK, Shrestha NK, Im H, Inamdar AI. Nanoflake NiMn Layered Double Hydroxide Coated on Porous Membrane-like Ni-Foam for Sustainable and Efficient Electrocatalytic Oxygen Evolution. MEMBRANES 2023; 13:748. [PMID: 37755170 PMCID: PMC10535034 DOI: 10.3390/membranes13090748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/16/2023] [Accepted: 08/21/2023] [Indexed: 09/28/2023]
Abstract
Layered double hydroxides (LDHs) have gained vast importance as an electrocatalyst for water electrolysis to produce carbon-neutral and clean hydrogen energy. In this work, we demonstrated the fabrication of nano-flake-like NiMn LDH thin film electrodes onto porous membrane-like Ni-foam by using a simple and cost-effective electrodeposition method for oxygen evolution reaction (OER). Various Ni1-xMnx LDH (where x = 0.15, 0.25, 0.35, 0.50 and 0.75) thin film electrodes are utilized to achieve the optimal catalyst for an efficient and sustainable OER process. The various composition-dependent surface morphologies and porous-membrane-like structure provided the high electrochemical surface area along with abundant active sites facilitating the OER. The optimized catalyst referred to as Ni0.65Mn0.35 showed excellent OER properties with an ultralow overpotential of 253 mV at a current density of 50 mAcm-2, which outperforms other state-of-the art catalysts reported in the literature. The relatively low Tafel slope of 130 mV dec-1 indicates faster and more favorable reaction kinetics for OER. Moreover, Ni0.65Mn0.35 exhibits excellent durability over continuous operation of 20 h, indicating the great sustainability of the catalyst in an alkaline medium. This study provides knowledge for the fabrication and optimization of the OER catalyst electrode for water electrolysis.
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Affiliation(s)
- Verjesh Kumar Magotra
- Quantum-Functional Semiconductor Research Center, Dongguk University, Seoul 13557, Republic of Korea
| | - Arjun Magotra
- Department of Computer Science and Engineering, Faculty of Engineering and Technology, Jain (Deemed-to-be University), Bengaluru 562112, India
| | - Sawanta S. Mali
- Polymer Energy Materials Laboratory, School of Applied Chemical Engineering, Chonnam National University, Gwangju 500757, Republic of Korea
| | - Hee C. Jeon
- Quantum-Functional Semiconductor Research Center, Dongguk University, Seoul 13557, Republic of Korea
| | - Tae W. Kang
- Quantum-Functional Semiconductor Research Center, Dongguk University, Seoul 13557, Republic of Korea
| | - Amol S. Salunke
- Division of Physics and Semiconductor Science, Dongguk University, Seoul 04620, Republic of Korea
| | - Chang Kook Hong
- Polymer Energy Materials Laboratory, School of Applied Chemical Engineering, Chonnam National University, Gwangju 500757, Republic of Korea
| | - Nabeen K. Shrestha
- Division of Physics and Semiconductor Science, Dongguk University, Seoul 04620, Republic of Korea
| | - Hyunsik Im
- Division of Physics and Semiconductor Science, Dongguk University, Seoul 04620, Republic of Korea
| | - Akbar I. Inamdar
- Division of Physics and Semiconductor Science, Dongguk University, Seoul 04620, Republic of Korea
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24
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Shi Y, Zhang L, Zhou H, Liu R, Nie S, Ye G, Wu F, Niu W, Han JL, Wang AJ. Te-induced fabrication of Pt 3PdTe 0.2 alloy nanocages by the self-diffusion of Pd atoms with unique MOR electrocatalytic performance. NANOSCALE ADVANCES 2023; 5:2804-2812. [PMID: 37205282 PMCID: PMC10187029 DOI: 10.1039/d2na00576j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 04/05/2023] [Indexed: 05/21/2023]
Abstract
The key to the application of direct methanol fuel cells is to improve the activity and durability of Pt-based catalysts. Based on the upshift of the d-band centre and exposure to more Pt active sites, Pt3PdTe0.2 catalysts with significantly enhanced electrocatalytic performance for the methanol oxidation reaction (MOR) were designed in this study. A series of different Pt3PdTex (x = 0.2, 0.35, and 0.4) alloy nanocages with hollow and hierarchical structures were synthesized using cubic Pd nanoparticles as sacrificial templates and PtCl62- and TeO32- metal precursors as oxidative etching agents. The Pd nanocubes were oxidized into an ionic complex, which was further co-reduced with Pt and Te precursors by reducing agents to form the hollow Pt3PdTex alloy nanocages with a face-centred cubic lattice. The sizes of the nanocages were around 30-40 nm, which were larger than the Pd templates (18 nm) and the thicknesses of the walls were 7-9 nm. The Pt3PdTe0.2 alloy nanocages exhibited the highest catalytic activities and stabilities toward the MOR after electrochemical activation in sulfuric acid solution. CO-stripping tests suggested the enhanced CO-tolerant ability due to the doping of Te. The specific activity of Pt3PdTe0.2 for the MOR reached 2.71 mA cm-2 in acidic conditions, which was higher than those of Pd@Pt core-shell and PtPd1.5 alloy nanoparticles and commercial Pt/C. A DMFC with Pt3PdTe0.2 as the anodic catalyst output a higher power density by 2.6 times than that of commercial Pt/C, demonstrating its practicable application in clean energy conversions. Density functional theory (DFT) confirmed that the alloyed Te atoms altered the electron distributions of Pt3PdTe0.2, which could lower the Gibbs free energy of the rate-determining methanol dehydrogenation step and greatly improve the MOR catalytic activity and durability.
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Affiliation(s)
- Yuhe Shi
- School of Science, Harbin Institute of Technology Shenzhen 518055 China
| | - Ling Zhang
- School of Science, Harbin Institute of Technology Shenzhen 518055 China
| | - Huiwen Zhou
- School of Science, Harbin Institute of Technology Shenzhen 518055 China
| | - Ruanshan Liu
- School of Science, Harbin Institute of Technology Shenzhen 518055 China
| | - Shichen Nie
- Shandong Hynar Water Environmental Protection Co., Ltd Heze 274400 China
| | - Guojie Ye
- Hynar Water Group Co., Ltd Shenzhen 518052 China
| | - Fengxia Wu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun 130022 China
- University of Science and Technology of China Anhui 230026 China
| | - Wenxin Niu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun 130022 China
- University of Science and Technology of China Anhui 230026 China
| | - Jing Long Han
- School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen 518055 China
- State Key Laboratory of Urban Water Resource and Environment (Shenzhen), Harbin Institute of Technology Shenzhen 518055 China
| | - Ai Jie Wang
- School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen 518055 China
- State Key Laboratory of Urban Water Resource and Environment (Shenzhen), Harbin Institute of Technology Shenzhen 518055 China
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25
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Lee SA, Bu J, Lee J, Jang HW. High‐Entropy Nanomaterials for Advanced Electrocatalysis. SMALL SCIENCE 2023. [DOI: 10.1002/smsc.202200109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023] Open
Affiliation(s)
- Sol A Lee
- Department of Materials Science and Engineering Research Institute of Advanced Materials (RIAM) Seoul National University Seoul 08826 South Korea
- Liquid Sunlight Alliance (LiSA) Department of Applied Physics and Materials Science California Institute of Technology Pasadena CA 91106 USA
| | - Jeewon Bu
- Department of Materials Science and Engineering Research Institute of Advanced Materials (RIAM) Seoul National University Seoul 08826 South Korea
| | - Jiwoo Lee
- Department of Materials Science and Engineering Research Institute of Advanced Materials (RIAM) Seoul National University Seoul 08826 South Korea
| | - Ho Won Jang
- Department of Materials Science and Engineering Research Institute of Advanced Materials (RIAM) Seoul National University Seoul 08826 South Korea
- Advanced Institute of Convergence Technology Seoul National University Suwon 16229 Republic of Korea
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26
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Zhang Y, Liu H, Zhao S, Xie C, Huang Z, Wang S. Insights into the Dynamic Evolution of Defects in Electrocatalysts. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2209680. [PMID: 36631395 DOI: 10.1002/adma.202209680] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/04/2022] [Indexed: 06/17/2023]
Abstract
This review focuses on the formation and preparation of defects, the dynamic evolution process of defects, and the influence of defect dynamic evolution on catalytic reactions. The summary of the current advances in the dynamic evolution process of defects in oxygen evolution reaction, hydrogen evolution reaction, nitrogen reduction reaction, oxygen reduction reaction, and carbon dioxide reduction reaction, and the given perspectives are expected to provide a more comprehensive understanding of defective electrocatalysts on the structural evolution process during electrocatalysis and the reaction mechanisms, especially for the defect dynamic evolution on the performance in catalytic reactions.
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Affiliation(s)
- Yiqiong Zhang
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, 410114, P. R. China
| | - Hanwen Liu
- School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia
- School of Chemical Engineering, The University of Queensland, St Lucia, Brisbane, QLD, 4072, Australia
| | - Siyuan Zhao
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, 410114, P. R. China
| | - Chao Xie
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha, 410082, China
| | - Zhenguo Huang
- School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Shuangyin Wang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha, 410082, China
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27
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Barbero A, Moreira Da Silva C, Ortiz Pena N, Kefane N, Jaafar A, Thorey M, Bouaia H, Nelayah J, Wang G, Amara H, Ricolleau C, Huc V, Alloyeau D. Synthesis and structural properties of high-entropy nanoalloys made by physical and chemical routes. Faraday Discuss 2023; 242:129-143. [PMID: 36331026 DOI: 10.1039/d2fd00118g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The development of synthesis methods with enhanced control over the composition, size and atomic structure of High Entropy Nano-Alloys (HENA) could give rise to a new repertoire of nanomaterials with unprecedented functionalities, notably for mechanical, catalytic or hydrogen storage applications. Here, we have developed two original synthesis methods, one by a chemical route and the other by a physical one, to fabricate HENA with a size between 3 and 10 nm and a face centered cubic structure containing three (CoNiPt), four (CoNiPtCu and CoNiPtAu) or five (CoNiPtAuCu) metals close to the equiatomic composition. The key point in the proposed chemical synthesis method is to compensate the difference in reactivity of the different metal precursors by increasing the synthesis temperature using high boiling solvents. Physical syntheses were performed by pulsed laser ablation using a precise alternating deposition of the individual metals on a heated amorphous carbon substrate. Finally, we have exploited aberration-corrected transmission electron microscopy to explore the nanophase diagram of these nanostructures and reveal intrinsic thermodynamic properties of those complex nanosystems. In particular, we have shown (i) that the complete mixing of all elements can only occur close to the equiatomic composition and (ii) how the Ostwald ripening during HENA synthesis can induce size-dependent deviations from the equiatomic composition leading to the formation of large core-shell nanoparticles.
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Affiliation(s)
- Andrea Barbero
- Université Paris Cité, CNRS, Laboratoire Matériaux et Phénomènes Quantiques, 75013 Paris, France.
| | | | - Nathaly Ortiz Pena
- Université Paris Cité, CNRS, Laboratoire Matériaux et Phénomènes Quantiques, 75013 Paris, France.
| | - Nour Kefane
- Laboratoire d'Etude des Microstructures, ONERA - CNRS, Chatillon, France
| | - Abdallah Jaafar
- Université Paris Cité, CNRS, Laboratoire Matériaux et Phénomènes Quantiques, 75013 Paris, France.
| | - Maxence Thorey
- Université Paris Cité, CNRS, Laboratoire Matériaux et Phénomènes Quantiques, 75013 Paris, France.
| | - Hicham Bouaia
- Université Paris Cité, CNRS, Laboratoire Matériaux et Phénomènes Quantiques, 75013 Paris, France.
| | - Jaysen Nelayah
- Université Paris Cité, CNRS, Laboratoire Matériaux et Phénomènes Quantiques, 75013 Paris, France.
| | - Guillaume Wang
- Université Paris Cité, CNRS, Laboratoire Matériaux et Phénomènes Quantiques, 75013 Paris, France.
| | - Hakim Amara
- Université Paris Cité, CNRS, Laboratoire Matériaux et Phénomènes Quantiques, 75013 Paris, France. .,Institut de Chimie Moléculaire et des Matériaux d'Orsay, Université de Paris Saclay - CNRS, Orsay, France
| | - Christian Ricolleau
- Université Paris Cité, CNRS, Laboratoire Matériaux et Phénomènes Quantiques, 75013 Paris, France.
| | - Vincent Huc
- Laboratoire d'Etude des Microstructures, ONERA - CNRS, Chatillon, France
| | - Damien Alloyeau
- Université Paris Cité, CNRS, Laboratoire Matériaux et Phénomènes Quantiques, 75013 Paris, France.
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28
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Surface Modified CoCrFeNiMo High Entropy Alloys for Oxygen Evolution Reaction in Alkaline Seawater. Processes (Basel) 2023. [DOI: 10.3390/pr11010245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Electrolysis of seawater is a promising technique to desalinate seawater and produce high-purity hydrogen production for freshwater and renewable energy, respectively. For the application of seawater electrolysis technique on a large scale, simplicity of manufacture method, repeatability of catalyst products, and stable product quality is generally required in the industry. In this work, a facile, one-step, and metal salt-free fabrication method was developed for the seawater-oxygen-evolution-active catalysts composed of CoCrFeNiMo layered double hydroxide array self-supported on CoCrFeNiMo high entropy alloy substrate. The obtained catalysts show improved performance for oxygen evolution reaction in alkaline artificial seawater solution. The best-performing sample delivered the current densities of 10, 50, and 100 mA cm−2 at low overpotentials of 260.1, 294.3, and 308.4 mV, respectively. In addition, high stability is also achieved since no degradation was observed over the chronoamperometry test of 24 h at the overpotential corresponding to 100 mA cm−2. Furthermore, a failure mechanism OER activity of multi-element LDHs catalysts was put forward in order to enhance catalytic performance and design catalysts with long-term durability.
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29
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Li H, Huang H, Chen Y, Lai F, Fu H, Zhang L, Zhang N, Bai S, Liu T. High-Entropy Alloy Aerogels: A New Platform for Carbon Dioxide Reduction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2209242. [PMID: 36373568 DOI: 10.1002/adma.202209242] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 10/29/2022] [Indexed: 06/16/2023]
Abstract
High-entropy alloy aerogels (HEAAs) combined with the advantages of high-entropy alloys and aerogels are prospective new platforms in catalytic reactions. However, due to the differences in reduction potentials and miscibility behavior of different metals, the realization of HEAAs with a single phase is still a great challenge. Herein, a series of HEAAs is fabricated via the freeze-thaw method as highly active and durable electrocatalysts for the carbon dioxide reduction reaction (CO2 RR). Especially, the PdCuAuAgBiIn HEAAs can achieve Faradaic efficiency (FE) of C1 products almost 100% from -0.7 to -1.1 V versus reversible hydrogen electrode (VRHE ), and a maximum FE for formic acid (FEHCOOH ) of 98.1% at -1.1 VRHE , outperforming PdCuAuAgBiIn high-entropy alloy particles (HEAPs) and Pd metallic aerogels (MAs). Specifically, the current density and FEHCOOH are almost 200 mA cm-2 and 87% in a flow cell. The impressive CO2 RR performance of the PdCuAuAgBiIn HEAAs is attributed to the strong interactions between the different metals and the surface unsaturated sites, which can regulate the electronic structures of different metals and allow the optimal HCOO* intermediate adsorption and desorption onto the catalysts surface to enhance HCOOH production. The work not only provides a facile synthetic strategy to fabricate HEAAs, but also opens the avenue for development of efficient catalysts and beyond.
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Affiliation(s)
- Hanjun Li
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, International Joint Research Laboratory for Nano Energy Composites, Jiangnan University, Wuxi, 214122, China
| | - Honggang Huang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, International Joint Research Laboratory for Nano Energy Composites, Jiangnan University, Wuxi, 214122, China
| | - Yao Chen
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, International Joint Research Laboratory for Nano Energy Composites, Jiangnan University, Wuxi, 214122, China
| | - Feili Lai
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, Leuven, 3001, Belgium
| | - Hui Fu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, International Joint Research Laboratory for Nano Energy Composites, Jiangnan University, Wuxi, 214122, China
| | - Longsheng Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, International Joint Research Laboratory for Nano Energy Composites, Jiangnan University, Wuxi, 214122, China
| | - Nan Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, International Joint Research Laboratory for Nano Energy Composites, Jiangnan University, Wuxi, 214122, China
| | - Shuxing Bai
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, China
| | - Tianxi Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, International Joint Research Laboratory for Nano Energy Composites, Jiangnan University, Wuxi, 214122, China
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30
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Chen T, Ning F, Qi J, Feng G, Wang Y, Song J, Yang T, Liu X, Chen L, Xia D. PtFeCoNiCu high-entropy solid solution alloy as highly efficient electrocatalyst for the oxygen reduction reaction. iScience 2022; 26:105890. [PMID: 36691611 PMCID: PMC9860490 DOI: 10.1016/j.isci.2022.105890] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/06/2022] [Accepted: 12/23/2022] [Indexed: 12/29/2022] Open
Abstract
Searching for an efficient, durable, and low cost catalyst toward oxygen reduction reaction (ORR) is of paramount importance for the application of fuel cell technology. Herein, PtFeCoNiCu high-entropy alloy nanoparticles (PFCNC-HEA) is reported as electrocatalyst toward ORR. It shows remarkable ORR catalytic mass activity of 1.738 A mg-1 Pt at 0.90 V, which is 15.8 times higher than that of the state-of-art commercial Pt/C catalyst. It also exhibits outstanding stability with negligible voltage decay (3 mV) after 10k cycles accelerated durability test. High ORR activity is ascribed to the ligand effect caused by polymetallic elements, the optimization of the surface electronic structure, and the formation of multiple active sites on the surface. In the proton exchange membrane fuel cell setup, this cell delivers a power density of up to 1.380 W cm-2 with a cathodic Pt loading of 0.03 mgPt cm-2, demonstrating a promising catalyst design direction for highly efficient ORR.
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Affiliation(s)
- Tao Chen
- Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, School of Materials Science and Engineering, Peking University, Beijing 100871, PR China
| | - Fanghua Ning
- Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, School of Materials Science and Engineering, Peking University, Beijing 100871, PR China
| | - Jizhen Qi
- I-Lab, CAS Center for Excellence in Nanoscience, Suzhou Institute of Nano-Tech and Nano Bionics, Chinese Academy of Sciences, Suzhou 215123, PR China
| | - Guang Feng
- Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, School of Materials Science and Engineering, Peking University, Beijing 100871, PR China
| | - Yucheng Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jin Song
- Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, School of Materials Science and Engineering, Peking University, Beijing 100871, PR China
| | - Tonghuan Yang
- Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, School of Materials Science and Engineering, Peking University, Beijing 100871, PR China
| | - Xi Liu
- In-situ Center for Physical Sciences, School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, PR China
| | - Liwei Chen
- In-situ Center for Physical Sciences, School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, PR China,Corresponding author
| | - Dingguo Xia
- Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, School of Materials Science and Engineering, Peking University, Beijing 100871, PR China,Corresponding author
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31
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Kang Y, Tang Y, Zhu L, Jiang B, Xu X, Guselnikova O, Li H, Asahi T, Yamauchi Y. Porous Nanoarchitectures of Nonprecious Metal Borides: From Controlled Synthesis to Heterogeneous Catalyst Applications. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Yunqing Kang
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo169-8555, Japan
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki305-0044, Japan
| | - Yi Tang
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki305-0044, Japan
| | - Liyang Zhu
- Department of Nanoscience and Nanoengineering, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo169-8555, Japan
| | - Bo Jiang
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai200234, China
| | - Xingtao Xu
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki305-0044, Japan
| | - Olga Guselnikova
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki305-0044, Japan
| | - Hexing Li
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai200234, China
| | - Toru Asahi
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo169-8555, Japan
- Department of Nanoscience and Nanoengineering, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo169-8555, Japan
- Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku, Tokyo169-0051, Japan
| | - Yusuke Yamauchi
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki305-0044, Japan
- Department of Nanoscience and Nanoengineering, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo169-8555, Japan
- Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku, Tokyo169-0051, Japan
- Australian Institute for Bioengineering and Nanotechnology (AIBN) and School of Chemical Engineering, The University of Queensland, Brisbane, Queensland4072, Australia
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32
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Mosali VSS, Bond AM, Zhang J. Alloying strategies for tuning product selectivity during electrochemical CO 2 reduction over Cu. NANOSCALE 2022; 14:15560-15585. [PMID: 36254597 DOI: 10.1039/d2nr03539a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Excessive reliance on fossil fuels has led to the release and accumulation of large quantities of CO2 into the atmosphere which has raised serious concerns related to environmental pollution and global warming. One way to mitigate this problem is to electrochemically recycle CO2 to value-added chemicals or fuels using electricity from renewable energy sources. Cu is the only metallic electrocatalyst that has been shown to produce a wide range of industrially important chemicals at appreciable rates. However, low product selectivity is a fundamental issue limiting commercial applications of electrochemical CO2 reduction over Cu catalysts. Combining copper with other metals that actively contribute to the electrochemical CO2 reduction reaction process can selectively facilitate generation of desirable products. Alloying Cu can alter surface binding strength through electronic and geometric effects, enhancing the availability of surface confined carbon species, and stabilising key reduction intermediates. As a result, significant research has been undertaken to design and fabricate copper-based alloy catalysts with structures that can enhance the selectivity of targeted products. In this article, progress with use of alloying strategies for development of Cu-alloy catalysts are reviewed. Challenges in achieving high selectivity and possible future directions for development of new copper-based alloy catalysts are considered.
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Affiliation(s)
| | - Alan M Bond
- School of Chemistry, Monash University, Clayton 3800, Victoria, Australia.
- ARC Centre of Excellence for Electromaterials Science, Monash University, Clayton 3800, Victoria, Australia
| | - Jie Zhang
- School of Chemistry, Monash University, Clayton 3800, Victoria, Australia.
- ARC Centre of Excellence for Electromaterials Science, Monash University, Clayton 3800, Victoria, Australia
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33
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Defect engineering for advanced electrocatalytic conversion of nitrogen-containing molecules. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1419-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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34
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Chen W, Luo S, Sun M, Wu X, Zhou Y, Liao Y, Tang M, Fan X, Huang B, Quan Z. High-Entropy Intermetallic PtRhBiSnSb Nanoplates for Highly Efficient Alcohol Oxidation Electrocatalysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2206276. [PMID: 36063819 DOI: 10.1002/adma.202206276] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/28/2022] [Indexed: 06/15/2023]
Abstract
The control of multimetallic ensembles at the atomic-level is challenging, especially for high-entropy alloys (HEAs) possessing five or more elements. Herein, the one-pot synthesis of hexagonal-close-packed (hcp) PtRhBiSnSb high-entropy intermetallic (HEI) nanoplates with intrinsically isolated Pt, Rh, Bi, Sn, and Sb atoms is reported, to boost the electrochemical oxidation of liquid fuels. Taking advantage of these combined five metals, the well-defined PtRhBiSnSb HEI nanoplates exhibit a remarkable mass activity of 19.529, 15.558, and 7.535 A mg-1 Pt+Rh toward the electrooxidation of methanol, ethanol, and glycerol in alkaline electrolytes, respectively, representing a state-of-the-art multifunctional electrocatalyst for alcohol oxidation reactions. In particular, the PtRhBiSnSb HEI achieves record-high methanol oxidation reaction (MOR) activity in an alkaline environment. Theoretical calculations demonstrate that the introduction of the fifth metal Rh enhances the electron-transfer efficiency in PtRhBiSnSb HEI nanoplates, which contributes to the improved oxidation capability. Meanwhile, robust electronic structures of the active sites are achieved due to the synergistic protections from Bi, Sn, and Sb sites. This work offers significant research advances in developing well-defined HEA with delicate control over compositions and properties.
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Affiliation(s)
- Wen Chen
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China
- Department of Chemistry and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong, 518055, China
| | - Shuiping Luo
- Department of Chemistry and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong, 518055, China
| | - Mingzi Sun
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, 999077, China
| | - Xiaoyu Wu
- Department of Chemistry and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong, 518055, China
| | - Yongsheng Zhou
- Department of Chemistry and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong, 518055, China
| | - Yujia Liao
- Department of Chemistry and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong, 518055, China
| | - Min Tang
- Department of Chemistry and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong, 518055, China
| | - Xiaokun Fan
- Department of Chemistry and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong, 518055, China
| | - Bolong Huang
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, 999077, China
| | - Zewei Quan
- Department of Chemistry and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong, 518055, China
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Zhang T, Meng YL, Zhao YH, Ni JC, Pan Y, Dai Y, Tan Z, Wang XF, Song XZ. Boosting the oxygen evolution electrocatalysis of high-entropy hydroxides by high-valence nickel species regulation. Chem Commun (Camb) 2022; 58:7682-7685. [PMID: 35730446 DOI: 10.1039/d2cc02367a] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The addition of an extra metal source induces the transformation from crystalline α-Ni(OH)2 to an amorphous NiCoFeCrMo-based high-entropy hydroxide (HEH) and maximizes the high-valence Ni3+ content in HEH. For OER electrocatalysis, the quinary HEH possesses an overpotential of 292 mV at 10 mA cm-2, a Tafel slope of 54.31 mV dec-1 and the boosted intrinsic activity, surpassing other subsystems.
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Affiliation(s)
- Tao Zhang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Panjin Campus, Panjin, 124221, China.
| | - Yu-Lan Meng
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Panjin Campus, Panjin, 124221, China.
| | - Yu-Hang Zhao
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Panjin Campus, Panjin, 124221, China.
| | - Jing-Chang Ni
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Panjin Campus, Panjin, 124221, China.
| | - Yu Pan
- Institute of Functional Textiles and Advanced Materials, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-textiles, Qingdao University, Qingdao, 266071, China.
| | - Yan Dai
- Panjin Institute of Industrial Technology, Liaoning Key Laboratory of Chemical Additive Synthesis and Separation, Dalian University of Technology, Panjin, 124221, Liaoning, China
| | - Zhenquan Tan
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Panjin Campus, Panjin, 124221, China.
| | - Xiao-Feng Wang
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Ministry of Education), School of Physics, Dalian University of Technology, Dalian, 116024, China.
| | - Xue-Zhi Song
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Panjin Campus, Panjin, 124221, China.
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Yang J, Liu Z, Zhou H, Jia L, Wu A, Jiang L. Enhanced Electromagnetic-Wave Absorbing Performances and Corrosion Resistance via Tuning Ti Contents in FeCoNiCuTi x High-Entropy Alloys. ACS APPLIED MATERIALS & INTERFACES 2022; 14:12375-12384. [PMID: 35244391 DOI: 10.1021/acsami.1c25079] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Efficient and stable electromagnetic-wave (EMW) absorption materials have attracted great attention in the field of reducing microwave pollution. Herein, FeCoNiCuTix high-entropy alloys (HEAs) as electromagnetic-wave absorbing materials were prepared by a high-energy ball-milling method. The as-milled HEA powders presented a flaky shape with a high aspect ratio. Impedance matching was efficiently optimized by severe lattice distortion, which was caused by Ti incorporation. The introduced plentiful defects in FeCoNiCuTix HEAs provided abundant polarization sites for dielectric loss. By tuning Ti contents, FeCoNiCuTi0.2 HEAs delivered excellent EMW absorption performances. The maximal reflection loss (RLmax) values reached -47.8 dB at 10.86 GHz as thin as 2.16 mm, and the widest bandwidth was 4.76 GHz (5.97-10.73 GHz). Furthermore, the introduction of Ti enhanced corrosion resistance via increasing the charge transfer resistance of a passivated film. Those characteristics of FeCoNiCuTix HEAs made these materials a practical gigahertz-range EMW absorber. Additionally, our findings provided a facile and tunable strategy for designing EMW absorbing materials, which was aimed at lightweight, highly efficient absorption, and resistance to harsh environments.
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Affiliation(s)
- Jianping Yang
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Ningbo University, Ningbo 315211, P. R. China
| | - Zhonghao Liu
- Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China
| | - Haoran Zhou
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Ningbo University, Ningbo 315211, P. R. China
| | - Lei Jia
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Ningbo University, Ningbo 315211, P. R. China
| | - Anhua Wu
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, P. R. China
| | - Linwen Jiang
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Ningbo University, Ningbo 315211, P. R. China
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Electrocatalysts for the Oxygen Reduction Reaction: From Bimetallic Platinum Alloys to Complex Solid Solutions. CHEMENGINEERING 2022. [DOI: 10.3390/chemengineering6010019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The oxygen reduction reaction has been the object of intensive research in an attempt to improve the sluggish kinetics that limit the performance of renewable energy storage and utilization systems. Platinum or platinum bimetallic alloys are common choices as the electrode material, but prohibitive costs hamper their use. Complex alloy materials, such as high-entropy alloys (HEAs), or more generally, multiple principal component alloys (MPCAs), have emerged as a material capable of overcoming the limitations of platinum and platinum-based materials. Theoretically, due to the large variety of active sites, this new kind of material offers the opportunity to identify experimentally the optimal binding site on the catalyst surface. This review discusses recent advances in the application of such alloys for the oxygen reduction reaction and existing experimental challenges in the benchmarking of the electrocatalytic properties of these materials.
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