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Xu K, Liang L, Li T, Bao M, Yu Z, Wang J, Thalluri SM, Lin F, Liu Q, Cui Z, Song S, Liu L. Pt 1.8Pd 0.2CuGa Intermetallic Nanocatalysts with Enhanced Methanol Oxidation Performance for Efficient Hybrid Seawater Electrolysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2403792. [PMID: 38742953 DOI: 10.1002/adma.202403792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/11/2024] [Indexed: 05/16/2024]
Abstract
Seawater electrolysis is a potentially cost-effective approach to green hydrogen production, but it currently faces substantial challenges for its high energy consumption and the interference of chlorine evolution reaction (ClER). Replacing the energy-demanding oxygen evolution reaction with methanol oxidation reaction (MOR) represents a promising alternative, as MOR occurs at a significantly low anodic potential, which cannot only reduce the voltage needed for electrolysis but also completely circumvents ClER. To this end, developing high-performance MOR catalysts is a key. Herein, a novel quaternary Pt1.8Pd0.2CuGa/C intermetallic nanoparticle (i-NP) catalyst is reported, which shows a high mass activity (11.13 A mgPGM -1), a large specific activity (18.13 mA cmPGM -2), and outstanding stability toward alkaline MOR. Advanced characterization and density functional theory calculations reveal that the introduction of atomically distributed Pd in Pt2CuGa intermetallic markedly promotes the oxidation of key reaction intermediates by enriching electron concentration around Pt sites, resulting in weak adsorption of carbon-containing intermediates and favorable adsorption of synergistic OH- groups near Pd sites. MOR-assisted seawater electrolysis is demonstrated, which continuously operates under 1.23 V for 240 h in simulated seawater and 120 h in natural seawater without notable degradation.
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Affiliation(s)
- Kaiyang Xu
- Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
- Jieyang Branch of Chemistry and Chemical Engineering, Guangdong Laboratory (Rongjiang Laboratory), Jieyang, 515200, China
- Songshan Lake Materials Laboratory (SLAB), Dongguan, 523808, P. R. China
| | - Lecheng Liang
- The Key Laboratory of Fuel Cell Technology of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Tong Li
- Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
- Jieyang Branch of Chemistry and Chemical Engineering, Guangdong Laboratory (Rongjiang Laboratory), Jieyang, 515200, China
| | - Mujie Bao
- Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
- Jieyang Branch of Chemistry and Chemical Engineering, Guangdong Laboratory (Rongjiang Laboratory), Jieyang, 515200, China
| | - Zhipeng Yu
- Songshan Lake Materials Laboratory (SLAB), Dongguan, 523808, P. R. China
- International Iberian Nanotechnology Laboratory (INL), Braga, 4715-330, Portugal
| | - Jingwei Wang
- Songshan Lake Materials Laboratory (SLAB), Dongguan, 523808, P. R. China
| | | | - Fei Lin
- Songshan Lake Materials Laboratory (SLAB), Dongguan, 523808, P. R. China
| | - Quanbing Liu
- Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
- Jieyang Branch of Chemistry and Chemical Engineering, Guangdong Laboratory (Rongjiang Laboratory), Jieyang, 515200, China
| | - Zhiming Cui
- The Key Laboratory of Fuel Cell Technology of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Shuqin Song
- The Key Lab of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, PCFM Lab, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Lifeng Liu
- Songshan Lake Materials Laboratory (SLAB), Dongguan, 523808, P. R. China
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Lu Y, Liang L, Ye S, Chen Z, Zhao W, Cui Z. Pt 3Sn 0.5Mn 0.5 Intermetallic Electrocatalyst with Superior Stability for CO-Resilient Methanol Oxidation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:35134-35142. [PMID: 38940277 DOI: 10.1021/acsami.4c05906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
The sluggish kinetics of methanol oxidation reaction (MOR) and poor long-term durability of catalysts are the main restrictions of the large-scale applications of direct methanol fuel cells (DMFCs). Herein, we demonstrated an inspirational ternary Pt3Sn0.5Mn0.5/DMC intermetallic catalyst that reached 4.78 mA cm-2 and 2.39 A mg-1Pt for methanol oxidation, which were 2.50/2.44 and 5.62/5.31 times that of commercial PtRu/C and Pt/C. After the durability test, Pt3Sn0.5Mn0.5/DMC presented a very low current density attenuation (38.5%), which was significantly lower than those for commercial PtRu/C catalyst (84.2%) and Pt/C (93.1%). Density functional theory (DFT) calculations revealed that the coregulation of Sn and Mn altered the surface electronic structure and endowed Pt3Sn0.5Mn0.5 with selective adsorption of Pt for CO and Sn for OH, which optimized the adsorption strength for intermediates and improved the reaction kinetics of MOR. Beyond offering an advanced electrocatalyst, this study provided a new point of view for the rational design of superior methanol oxidation catalysts for DMFC.
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Affiliation(s)
- Yongmei Lu
- Guizhou University Key Laboratory of Green Chemical and Clean Energy Technology, Guizhou University Engineering Research Center of Efficient Utilization for Industrial Waste, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, PR China
| | - Lecheng Liang
- The Key Laboratory of Fuel Cell Technology of Guangdong Province, The Key Laboratory of New Energy Technology of Guangdong Universities, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510641, PR China
| | - Shao Ye
- The Key Laboratory of Fuel Cell Technology of Guangdong Province, The Key Laboratory of New Energy Technology of Guangdong Universities, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510641, PR China
| | - Zheng Chen
- Guizhou University Key Laboratory of Green Chemical and Clean Energy Technology, Guizhou University Engineering Research Center of Efficient Utilization for Industrial Waste, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, PR China
| | - Weiyue Zhao
- Guizhou University Key Laboratory of Green Chemical and Clean Energy Technology, Guizhou University Engineering Research Center of Efficient Utilization for Industrial Waste, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, PR China
| | - Zhiming Cui
- The Key Laboratory of Fuel Cell Technology of Guangdong Province, The Key Laboratory of New Energy Technology of Guangdong Universities, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510641, PR China
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Zhan C, Sun H, Yan W, Xia J, Meng XM, Li T, Bu L, Kong Q, Lin H, Liu W, Huang X, Chen N. A Biphasic Strategy to Synergistically Accelerate Activation and CO Spillover in Formic Acid Oxidation Catalysis. NANO LETTERS 2024; 24:8134-8142. [PMID: 38900138 DOI: 10.1021/acs.nanolett.4c02074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Developing highly efficient and carbon monoxide (CO)-tolerant platinum (Pt) catalysts for the formic acid oxidation reaction (FAOR) is vital for direct formic acid fuel cells (DFAFCs), yet it is challenging due to the high energy barrier of direct intermediates (HCOO* and COOH*) as well as the CO poisoning issues associated with Pt alloy catalysts. Here we present a versatile biphasic strategy by creating a hexagonal/cubic crystalline-phase-synergistic PtPb/C (h/c-PtPb/C) catalyst to tackle the aforementioned issues. Detailed investigations reveal that h/c-PtPb/C can simultaneously facilitate the adsorption of direct intermediates while inhibiting CO adsorption, thereby significantly improving the activation and CO spillover. As a result, h/c-PtPb/C showcases an outstanding FAOR activity of 8.1 A mgPt-1, which is 64.5 times higher than that of commercial Pt/C and significantly surpasses monophasic PtPb. Moreover, the h/c-PtPb/C-based membrane electrode assembly exhibits an exceptional peak power density of 258.7 mW cm-2 for practical DFAFC applications.
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Affiliation(s)
- Changhong Zhan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Haoran Sun
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Wei Yan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jing Xia
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiang-Min Meng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Tongtong Li
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Lingzheng Bu
- College of Energy, Xiamen University, Xiamen 361102, China
| | - Qingyu Kong
- Synchrotron Soleil, L'Orme des Merisiers, St-Aubin, 91192 Gif-sur-Yvette Cedex, France
| | - Haixin Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen 361005, China
| | - Wei Liu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Xiaoqing Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen 361005, China
| | - Nanjun Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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Li L, Gao W, Wan Z, Wan X, Ye J, Gao J, Wen D. Confining N-Doped Carbon Dots into PtNi Aerogels Skeleton for Robust Electrocatalytic Methanol Oxidation and Oxygen Reduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2400158. [PMID: 38415969 DOI: 10.1002/smll.202400158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/05/2024] [Indexed: 02/29/2024]
Abstract
Noble metallic aerogels with the self-supported hierarchical structure and remarkable activity are promising for methanol fuel cells, but are limited by the severe poisoning and degradation of active sites during electrocatalysis. Herein, the highly stable electrocatalyst of N-doped carbon dots-PtNi (NCDs-PtNi) aerogels is proposed by confining NCDs with alloyed PtNi for methanol oxidation and oxygen reduction reactions. Comprehensive electrocatalytic measurements and theoretical investigations suggest the improvement in structure stability and regulation in electronic structure for better electrocatalytic durability when confining NCDs with PtNi aerogels. Notably, the NCDs-PtNi aerogels perform 12-fold higher activity than that of Pt/C and maintain 52% of their initial activity after 5000 cycles toward acidic methanol oxidation. The enhanced stability and activity of NCDs-PtNi aerogels are also evident for oxygen reduction reactions in different electrolytes. These results highlight the effectiveness of stabilizing metallic aerogels with NCDs, offering a feasible pathway to develop robust electrocatalysts for fuel cells.
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Affiliation(s)
- Lanqing Li
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
- Chongqing Innovation Center, Northwestern Polytechnical University, Chongqing, 401135, P. R. China
- School of Materials Science and Engineering, Hubei University of Automotive Technology, Shiyan, 442002, P. R. China
| | - Wei Gao
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
- Chongqing Innovation Center, Northwestern Polytechnical University, Chongqing, 401135, P. R. China
| | - Ziqi Wan
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Xinhao Wan
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Jianqi Ye
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Jie Gao
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Dan Wen
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
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Feng F, Ma C, Han S, Ma X, He C, Zhang H, Cao W, Meng X, Xia J, Zhu L, Tian Y, Wang Q, Yun Q, Lu Q. Breaking Highly Ordered PtPbBi Intermetallic with Disordered Amorphous Phase for Boosting Electrocatalytic Hydrogen Evolution and Alcohol Oxidation. Angew Chem Int Ed Engl 2024; 63:e202405173. [PMID: 38622784 DOI: 10.1002/anie.202405173] [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: 03/15/2024] [Revised: 04/10/2024] [Accepted: 04/15/2024] [Indexed: 04/17/2024]
Abstract
Constructing amorphous/intermetallic (A/IMC) heterophase structures by breaking the highly ordered IMC phase with disordered amorphous phase is an effective way to improve the electrocatalytic performance of noble metal-based IMC electrocatalysts because of the optimized electronic structure and abundant heterophase boundaries as active sites. In this study, we report the synthesis of ultrathin A/IMC PtPbBi nanosheets (NSs) for boosting hydrogen evolution reaction (HER) and alcohol oxidation reactions. The resulting A/IMC PtPbBi NSs exhibit a remarkably low overpotential of only 25 mV at 10 mA cm-2 for the HER in an acidic electrolyte, together with outstanding stability for 100 h. In addition, the PtPbBi NSs show high mass activities for methanol oxidation reaction (MOR) and ethanol oxidation reaction (EOR), which are 13.2 and 14.5 times higher than those of commercial Pt/C, respectively. Density functional theory calculations demonstrate that the synergistic effect of amorphous/intermetallic components and multimetallic composition facilitate the electron transfer from the catalyst to key intermediates, thus improving the catalytic activity of MOR. This work establishes a novel pathway for the synthesis of heterophase two-dimensional nanomaterials with high electrocatalytic performance across a wide range of electrochemical applications.
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Affiliation(s)
- Fukai Feng
- State Key Laboratory of Nuclear Power Safety Technology and Equipment, University of Science and Technology Beijing, Beijing, 100083, China
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Chaoqun Ma
- State Key Laboratory of Nuclear Power Safety Technology and Equipment, University of Science and Technology Beijing, Beijing, 100083, China
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Sumei Han
- State Key Laboratory of Nuclear Power Safety Technology and Equipment, University of Science and Technology Beijing, Beijing, 100083, China
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Xiao Ma
- State Key Laboratory of Nuclear Power Safety Technology and Equipment, University of Science and Technology Beijing, Beijing, 100083, China
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Caihong He
- State Key Laboratory of Nuclear Power Safety Technology and Equipment, University of Science and Technology Beijing, Beijing, 100083, China
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Huaifang Zhang
- State Key Laboratory of Nuclear Power Safety Technology and Equipment, University of Science and Technology Beijing, Beijing, 100083, China
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Wenbin Cao
- State Key Laboratory of Nuclear Power Safety Technology and Equipment, University of Science and Technology Beijing, Beijing, 100083, China
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Xiangmin Meng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jing Xia
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Lijie Zhu
- School of Instrument Science and Opto-Electronics Engineering, Beijing Information Science and Technology University, Beijing, 100192, China
| | - Yahui Tian
- State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Qi Wang
- State Key Laboratory of Nuclear Power Safety Technology and Equipment, University of Science and Technology Beijing, Beijing, 100083, China
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Qinbai Yun
- Department of Chemical and Biological Engineering & Energy Institute, The Hong Kong University of Science and Technology, Hong Kong, China
- Guangzhou HKUST Fok Ying Tung Research Institute, Nansha, Guangzhou, 511458, China
| | - Qipeng Lu
- State Key Laboratory of Nuclear Power Safety Technology and Equipment, University of Science and Technology Beijing, Beijing, 100083, China
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
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Lei M, Ding X, Liu J, Tang Y, Chen H, Zhou Y, Zhu C, Yan H. Trace Amount of Bi-Doped Core-Shell Pd@Pt Mesoporous Nanospheres with Specifically Enhanced Peroxidase-Like Activity Enable Sensitive and Accurate Detection of Acetylcholinesterase and Organophosphorus Nerve Agents. Anal Chem 2024; 96:6072-6078. [PMID: 38577757 DOI: 10.1021/acs.analchem.4c00789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
The urgent need for sensitive and accurate assays to monitor acetylcholinesterase (AChE) activity and organophosphorus pesticides (OPs) arises from the imperative to safeguard human health and protect the ecosystem. Due to its cost-effectiveness, ease of operation, and rapid response, nanozyme-based colorimetry has been widely utilized in the determination of AChE activity and OPs. However, the rational design of nanozymes with high activity and specificity remains a great challenge. Herein, trace amount of Bi-doped core-shell Pd@Pt mesoporous nanospheres (Pd@PtBi2) have been successfully synthesized, exhibiting good peroxidase-like activity and specificity. With the incorporation of trace bismuth, there is a more than 4-fold enhancement in the peroxidase-like performance of Pd@PtBi2 compared to that of Pd@Pt. Besides, no significant improvement of oxidase-like and catalase-like activities of Pd@PtBi2 was found, which prevents interference from O2 and undesirable consumption of substrate H2O2. Based on the blocking impact of thiocholine, a colorimetric detection platform utilizing Pd@PtBi2 was constructed to monitor AChE activity with sensitivity and selectivity. Given the inhibition of OPs on AChE activity, a biosensor was further developed by integrating Pd@PtBi2 with AChE to detect OPs, capitalizing on the cascade amplification strategy. The OP biosensor achieved a detection limit as low as 0.06 ng mL-1, exhibiting high sensitivity and anti-interference ability. This work is promising for the construction of nanozymes with high activity and specificity, as well as the development of nanozyme-based colorimetric biosensors.
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Affiliation(s)
- Mengdie Lei
- School of Chemistry and Chemical Engineering, Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
| | - Xilin Ding
- School of Chemistry and Chemical Engineering, Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
| | - Jin Liu
- School of Chemistry and Chemical Engineering, Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
| | - Yinjun Tang
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Hongxiang Chen
- School of Chemistry and Chemical Engineering, Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
| | - Yu Zhou
- School of Chemistry and Chemical Engineering, Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
| | - Chengzhou Zhu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
- College of Material Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Hongye Yan
- School of Chemistry and Chemical Engineering, Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
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Lin F, Li M, Zeng L, Luo M, Guo S. Intermetallic Nanocrystals for Fuel-Cells-Based Electrocatalysis. Chem Rev 2023; 123:12507-12593. [PMID: 37910391 DOI: 10.1021/acs.chemrev.3c00382] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [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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Zhao F, Nie S, Wu L, Yuan Q, Wang X. Porous, Ultrathin PtAgBiTe Nanosheets for Direct Hydrazine Hydrate Fuel Cell Devices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2303672. [PMID: 37378656 DOI: 10.1002/adma.202303672] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/09/2023] [Indexed: 06/29/2023]
Abstract
Ultrathin 2D nanomaterials have attracted extensive attention due to their fascinating applications in sustainable and clean-energy-related devices, but obtaining ultrathin 2D multimetallic polycrystalline structures with large lateral dimensions remains a challenge. In this study, ultrathin 2D porous PtAgBiTe and PtBiTe polycrystalline nanosheets (PNSs) are obtained via a visible-light-photoinduced Bi2 Te3 -nanosheet-mediated route. The PtAgBiTe PNSs are assembled by sub-5 nm grains with widths beyond 700 nm. Strain and ligand effects originating from the porous, curly polycrystalline structure endow the PtAgBiTe PNSs with robust hydrazine hydrate oxidation reaction activity. Theoretical research demonstrates that the modified Pt activates the N-H bonds in N2 H4 during the reaction, and strong hybridization between Pt-5d and N-2p facilitates dehydrogenation while reducing energy consumption. The peak power densities of the PtAgBiTe PNSs in actual hydrazine-O2 /air fuel cell devices are boosted to 532.9/315.9 mW cm-2 , while those of the commercial Pt/C are 394.7/157.9 mW cm-2 . This work provides a strategy not only for preparing ultrathin multimetallic PNSs but also for finding promising electrocatalysts for actual hydrazine fuel cells.
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Affiliation(s)
- Fengling Zhao
- State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals, College of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou Province, 550025, P. R. China
| | - Siyang Nie
- Key Lab of Organic Optoelectronics & Molecular Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Liang Wu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Qiang Yuan
- State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals, College of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou Province, 550025, P. R. China
| | - Xun Wang
- Key Lab of Organic Optoelectronics & Molecular Engineering, Tsinghua University, Beijing, 100084, P. R. China
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Hu X, An Z, Wang W, Lin X, Chan TS, Zhan C, Hu Z, Yang Z, Huang X, Bu L. Sub-Monolayer SbO x on PtPb/Pt Nanoplate Boosts Direct Formic Acid Oxidation Catalysis. J Am Chem Soc 2023; 145:19274-19282. [PMID: 37585588 DOI: 10.1021/jacs.3c04580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
To promote the commercialization of direct formic acid fuel cell (DFAFC), it is vital to explore new types of direct formic acid oxidation (FAOR) catalysts with high activity and direct pathway. Here, we report the synthesis of intermetallic platinum-lead/platinum nanoplates inlaid with sub-monolayer antimony oxide surface (PtPb/Pt@sub-SbOx NPs) for efficient catalytic applications in FAOR. Impressively, they can achieve the remarkable FAOR specific and mass activities of 28.7 mA cm-2 and 7.2 A mgPt-1, which are 151 and 60 times higher than those of the state-of-the-art commercial Pt/C, respectively. Furthermore, the X-ray photoelectron spectroscopy and X-ray absorption spectroscopy results collectively reveal the optimization of the local coordination environment by the surface sub-monolayer SbOx, along with the electron transfer from Pb and Sb to Pt, driving the predominant dehydrogenation process. The sub-monolayer SbOx on the surface can effectively attenuate the CO generation, largely improving the FAOR performance of PtPb/Pt@sub-SbOx NPs. This work develops a class of high-performance Pt-based anodic catalyst for DFAFC via constructing the unique intermetallic core/sub-monolayer shell structure.
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Affiliation(s)
- Xinrui Hu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhengchao An
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Weizhen Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Xin Lin
- College of Energy, Xiamen University, Xiamen 361102, China
| | - Ting-Shan Chan
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Changhong Zhan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhiwei Hu
- College of Chemistry, Max Planck Institute for Chemical Physics of Solids, Nothnitzer Strasse 40, Dresden 01187, Germany
| | | | - Xiaoqing Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Lingzheng Bu
- College of Energy, Xiamen University, Xiamen 361102, China
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10
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Hu X, Xiao Z, Wang W, Bu L, An Z, Liu S, Pao CW, Zhan C, Hu Z, Yang Z, Wang Y, Huang X. Platinum-Lead-Bismuth/Platinum-Bismuth Core/Shell Nanoplate Achieves Complete Dehydrogenation Pathway for Direct Formic Acid Oxidation Catalysis. J Am Chem Soc 2023. [PMID: 37289521 DOI: 10.1021/jacs.3c00262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Designing platinum (Pt)-based formic acid oxidation reaction (FAOR) catalysts with high performance and high selectivity of direct dehydrogenation pathway for direct formic acid fuel cell (DFAFC) is desirable yet challenging. Herein, we report a new class of surface-uneven PtPbBi/PtBi core/shell nanoplates (PtPbBi/PtBi NPs) as the highly active and selective FAOR catalysts, even in the complicated membrane electrode assembly (MEA) medium. They can achieve unprecedented specific and mass activities of 25.1 mA cm-2 and 7.4 A mgPt-1 for FAOR, 156 and 62 times higher than those of commercial Pt/C, respectively, which is the highest for a FAOR catalyst by far. Simultaneously, they show highly weak adsorption of CO and high dehydrogenation pathway selectivity in the FAOR test. More importantly, the PtPbBi/PtBi NPs can reach the power density of 161.5 mW cm-2, along with a stable discharge performance (45.8% decay of power density at 0.4 V for 10 h), demonstrating great potential in a single DFAFC device. The in situ Fourier transform infrared spectroscopy (FTIR) and X-ray absorption spectroscopy (XAS) results collectively reveal a local electron interaction between PtPbBi and PtBi. In addition, the high-tolerance PtBi shell can effectively inhibit the production/adsorption of CO, resulting in the complete presence of the dehydrogenation pathway for FAOR. This work demonstrates an efficient Pt-based FAOR catalyst with 100% direct reaction selectivity, which is of great significance for driving the commercialization of DFAFC.
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Affiliation(s)
- Xinrui Hu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhengyi Xiao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Weizhen Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Lingzheng Bu
- College of Energy, Xiamen University, Xiamen 361102, China
| | - Zhengchao An
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Shangheng Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Chih-Wen Pao
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Changhong Zhan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhiwei Hu
- College of Chemistry, Max Planck Institute for Chemical Physics of Solids, Nothnitzer Strasse 40, Dresden 01187, Germany
| | | | - Yucheng Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xiaoqing Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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11
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Guo J, Liu W, Fu X, Jiao S. Wet-chemistry synthesis of two-dimensional Pt- and Pd-based intermetallic electrocatalysts for fuel cells. NANOSCALE 2023; 15:8508-8531. [PMID: 37114369 DOI: 10.1039/d3nr00955f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Two-dimensional (2D) noble-metal-based nanomaterials have attracted tremendous attention and have widespread promising applications as a result of their unique physical, chemical, and electronic properties. Especially, 2D Pt- and Pd-based intermetallic nanoplates (IMNPs) and nanosheets (IMNSs) are widely studied for fuel cell (FC)-related reactions, including the cathodic oxygen reduction reaction (ORR) and anodic formic acid, methanol and ethanol oxidation reactions (FAOR, MOR and EOR). Wet-chemistry synthesis is a powerful strategy to prepare metallic nanocrystals with well-controlled dispersity, size, and composition. In this review, a fundamental understanding of the FC-related reactions is firstly elaborated. Subsequently, the current wet-chemistry synthesis pathways for 2D Pt- and Pd-based IMNPs and IMNSs are briefly summarized, as well as their electrocatalytic applications including in the ORR, FAOR, MOR, and EOR. Finally, we provide an overview of the opportunities and current challenges and give our perspectives on the development of high-performance 2D Pt- and Pd-based intermetallic electrocatalysts towards FCs. We hope this review offers timely information on the synthesis of 2D Pt- and Pd-based IMNPs and IMNSs and provides guidance for the efficient synthesis and application of them.
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Affiliation(s)
- Jingchun Guo
- Department of Experimental and Practical Teaching Management, West Anhui University, Lu'an 237012, China.
| | - Wei Liu
- Department of Experimental and Practical Teaching Management, West Anhui University, Lu'an 237012, China.
| | - Xucheng Fu
- Department of Experimental and Practical Teaching Management, West Anhui University, Lu'an 237012, China.
| | - Shilong Jiao
- School of Materials, Key Lab for Special Functional Materials of Ministry of Education, Henan University, Jinming Avenue, Kaifeng 475001, China.
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12
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Luo W, Jiang Y, Wang M, Lu D, Sun X, Zhang H. Design strategies of Pt-based electrocatalysts and tolerance strategies in fuel cells: a review. RSC Adv 2023; 13:4803-4822. [PMID: 36760269 PMCID: PMC9903923 DOI: 10.1039/d2ra07644f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 01/29/2023] [Indexed: 02/10/2023] Open
Abstract
As highly efficient conversion devices, proton-exchange-membrane fuel cells (PEMFCs) can directly convert chemical energy to electrical energy with high efficiencies and lower or even zero emissions compared to combustion engines. However, the practical applications of PEMFCs have been seriously hindered by the intermediates (especially CO) poisoning of anodic Pt catalysts. Hence, how to improve the CO tolerance of the needed Pt catalysts and reveal their anti-CO poisoning mechanism are the key points to developing novel anti-toxic Pt-based electrocatalysts. To date, two main strategies have received increasing attention in improving the CO tolerance of Pt-based electrocatalysts, including alloying Pt with a second element and fabricating composites with geometry and interface engineering. Herein, we will first discuss the latest developments of Pt-based alloys and their anti-CO poisoning mechanism. Subsequently, a detailed description of Pt-based composites with enhanced CO tolerance by utilizing the synergistic effect between Pt and carriers is introduced. Finally, a brief perspective and new insights on the design of Pt-based electrocatalysts to inhibit CO poisoning in PEMFCs are also presented.
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Affiliation(s)
- Wenlei Luo
- National Innovation Institute of Defense Technology, Academy of Military Science Beijing 100071 China
| | - Yitian Jiang
- State Key Laboratory of Space Power-sources Technology, Shanghai Institute of Space Power-Sources 2965 Dongchuan Road Shanghai 200245 China
| | - Mengwei Wang
- State Key Laboratory of Space Power-sources Technology, Shanghai Institute of Space Power-Sources 2965 Dongchuan Road Shanghai 200245 China
| | - Dan Lu
- State Key Laboratory of Space Power-sources Technology, Shanghai Institute of Space Power-Sources 2965 Dongchuan Road Shanghai 200245 China
| | - Xiaohui Sun
- State Key Laboratory of Space Power-sources Technology, Shanghai Institute of Space Power-Sources 2965 Dongchuan Road Shanghai 200245 China
| | - Huahui Zhang
- State Key Laboratory of Space Power-sources Technology, Shanghai Institute of Space Power-Sources 2965 Dongchuan Road Shanghai 200245 China
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Wang J, Zhang B, Guo W, Wang L, Chen J, Pan H, Sun W. Toward Electrocatalytic Methanol Oxidation Reaction: Longstanding Debates and Emerging Catalysts. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2211099. [PMID: 36706444 DOI: 10.1002/adma.202211099] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/23/2023] [Indexed: 05/30/2023]
Abstract
The study of direct methanol fuel cells (DMFCs) has lasted around 70 years, since the first investigation in the early 1950s. Though enormous effort has been devoted in this field, it is still far from commercialization. The methanol oxidation reaction (MOR), as a semi-reaction of DMFCs, is the bottleneck reaction that restricts the overall performance of DMFCs. To date, there has been intense debate on the complex six-electron reaction, but barely any reviews have systematically discussed this topic. To this end, the controversies and progress regarding the electrocatalytic mechanisms, performance evaluations as well as the design science toward MOR electrocatalysts are summarized. This review also provides a comprehensive introduction on the recent development of emerging MOR electrocatalysts with a focus on the innovation of the alloy, core-shell structure, heterostructure, and single-atom catalysts. Finally, perspectives on the future outlook toward study of the mechanisms and design of electrocatalysts are provided.
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Affiliation(s)
- Jianmei Wang
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Bingxing Zhang
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Wei Guo
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Lei Wang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore
| | - Jian Chen
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Hongge Pan
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Wenping Sun
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, P. R. China
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14
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Wang X, Liu Y, Ma XY, Chang LY, Zhong Q, Pan Q, Wang Z, Yuan X, Cao M, Lyu F, Yang Y, Chen J, Sham TK, Zhang Q. The Role of Bismuth in Suppressing the CO Poisoning in Alkaline Methanol Electrooxidation: Switching the Reaction from the CO to Formate Pathway. NANO LETTERS 2023; 23:685-693. [PMID: 36594847 DOI: 10.1021/acs.nanolett.2c04568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
While tuning the electronic structure of Pt can thermodynamically alleviate CO poisoning in direct methanol fuel cells, the impact of interactions between intermediates on the reaction pathway is seldom studied. Herein, we contrive a PtBi model catalyst and realize a complete inhibition of the CO pathway and concurrent enhancement of the formate pathway in the alkaline methanol electrooxidation. The key role of Bi is enriching OH adsorbates (OHad) on the catalyst surface. The competitive adsorption of CO adsorbates (COad) and OHad at Pt sites, complementing the thermodynamic contribution from alloying Bi with Pt, switches the intermediate from COad to formate that circumvents CO poisoning. Hence, 8% Bi brings an approximately 6-fold increase in activity compared to pure Pt nanoparticles. This notion can be generalized to modify commercially available Pt/C catalysts by a microwave-assisted method, offering opportunities for the design and practical production of CO-tolerance electrocatalysts in an industrial setting.
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Affiliation(s)
- Xuchun Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P. R. China
- Department of Chemistry, and Soochow-Western Center for Synchrotron Radiation Research, University of Western Ontario, London, Ontario N6A5B7, Canada
| | - Yu Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P. R. China
| | - Xing-Yu Ma
- Key Laboratory of General Chemistry of National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Lo-Yueh Chang
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Qixuan Zhong
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P. R. China
| | - Qi Pan
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P. R. China
| | - Zhiqiang Wang
- Department of Chemistry, and Soochow-Western Center for Synchrotron Radiation Research, University of Western Ontario, London, Ontario N6A5B7, Canada
| | - Xiaolei Yuan
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Muhan Cao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P. R. China
| | - Fenglei Lyu
- Soochow Institute for Energy and Materials Innovations, College of Energy, Soochow University, Suzhou 215006, China
| | - Yaoyue Yang
- Key Laboratory of General Chemistry of National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Jinxing Chen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P. R. China
| | - Tsun-Kong Sham
- Department of Chemistry, and Soochow-Western Center for Synchrotron Radiation Research, University of Western Ontario, London, Ontario N6A5B7, Canada
| | - Qiao Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P. R. China
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15
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Wang X, Chu M, Wang M, Zhong Q, Chen J, Wang Z, Cao M, Yang H, Cheng T, Chen J, Sham TK, Zhang Q. Unveiling the Local Structure and Electronic Properties of PdBi Surface Alloy for Selective Hydrogenation of Propyne. ACS NANO 2022; 16:16869-16879. [PMID: 36250595 DOI: 10.1021/acsnano.2c06834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Building a reliable relationship between the electronic structure of alloyed metallic catalysts and catalytic performance is important but remains challenging due to the interference from many entangled factors. Herein, a PdBi surface alloy structural model, by tuning the deposition rate of Bi atoms relative to the atomic interdiffusion rate at the interface, realizes a continuous modulation of the electronic structure of Pd. Using advanced X-ray characterization techniques, we provide a precise depiction of the electronic structure of the PdBi surface alloy. As a result, the PdBi catalysts show enhanced propene selectivity compared with the pure Pd catalyst in the selective hydrogenation of propyne. The prevented formation of saturated β-hydrides in the subsurface layers and weakened propene adsorption on the surface contribute to the high selectivity. Our work provides in-depth understanding of the electronic properties of surface alloy structure and underlies the study of the electronic structure-performance relationship in bimetallic catalysts.
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Affiliation(s)
- Xuchun Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'Ai Road, Suzhou215123, China
- Department of Chemistry, University of Western Ontario, 1151 Richmond Street, London, OntarioN6A5B7, Canada
| | - Mingyu Chu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'Ai Road, Suzhou215123, China
| | - Mengwen Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'Ai Road, Suzhou215123, China
| | - Qixuan Zhong
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'Ai Road, Suzhou215123, China
| | - Jiatang Chen
- Department of Chemistry, University of Western Ontario, 1151 Richmond Street, London, OntarioN6A5B7, Canada
| | - Zhiqiang Wang
- Department of Chemistry, University of Western Ontario, 1151 Richmond Street, London, OntarioN6A5B7, Canada
| | - Muhan Cao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'Ai Road, Suzhou215123, China
| | - Hao Yang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'Ai Road, Suzhou215123, China
| | - Tao Cheng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'Ai Road, Suzhou215123, China
| | - Jinxing Chen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'Ai Road, Suzhou215123, China
| | - Tsun-Kong Sham
- Department of Chemistry, University of Western Ontario, 1151 Richmond Street, London, OntarioN6A5B7, Canada
| | - Qiao Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'Ai Road, Suzhou215123, China
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16
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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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