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Wang L, Huang J, Hu X, Huang Z, Gao M, Yao D, Taylor Isimjan T, Yang X. Synergistic vacancy engineering of Co/MnO@NC catalyst for superior oxygen reduction reaction in liquid/solid zinc-air batteries. J Colloid Interface Sci 2024; 660:989-996. [PMID: 38290325 DOI: 10.1016/j.jcis.2024.01.143] [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: 12/21/2023] [Revised: 01/12/2024] [Accepted: 01/21/2024] [Indexed: 02/01/2024]
Abstract
The pursuit of efficient and economically viable catalysts for liquid/solid-state zinc-air batteries (ZABs) is of paramount importance yet presents formidable challenge. Herein, we synthesized a vacancy-rich cobalt/manganese oxide catalyst (Co/MnO@NC) stabilized on a nitrogen-doped mesoporous carbon (NC) nanosphere matrix by leveraging hydrothermal and high-temperature pyrolysis strategy. The optimized Co/MnO@NC demonstrates fast reaction kinetics and large limiting current densities comparable to commercial Pt/C in alkaline electrolyte for oxygen reduction reaction (ORR). Moreover, the Co/MnO@NC serves as an incredible cathode material for both liquid and flexible solid-state ZABs, delivering impressive peak power densities of 217.7 and 63.3 mW cm-2 and robust long-term stability (459 h), outperforming the state-of-the-art Pt/C and majority of the currently reported catalysts. Research indicates that the superior performance of the Co/MnO@NC catalyst primarily stems from the synergy between the heightened electrical conductivity of metallic Co and the regulatory capacity of MnO on adsorbed oxygen intermediates. In addition, the abundance of vacancies regulates the electronic configuration, and superhydrophilicity facilitates efficient electrolyte diffusion, thereby effectively ensuring optimal contact between the active site and reactants. Besides, the coexisting NC layer avoids the shedding of active sites, resulting in high stability. This work provides a viable approach for designing and advancing high-performance liquid/solid-state ZABs, highlighting the great potential of energy storage technology.
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Affiliation(s)
- Lixia Wang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Jia Huang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Xinran Hu
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Zhiyang Huang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Mingcheng Gao
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Di Yao
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China.
| | - Tayirjan Taylor Isimjan
- Saudi Arabia Basic Industries Corporation (SABIC) at King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Xiulin Yang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China.
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2
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Yang FK, Fang Y, Li FF, Qu WL, Deng C. Sn-doped PdCu alloy nanosheet assemblies as an efficient electrocatalyst for formic acid oxidation. Dalton Trans 2023; 52:14428-14434. [PMID: 37771290 DOI: 10.1039/d3dt01095c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
A ternary alloy catalyst has been confirmed to be an effective catalyst for anode catalysis in direct formic acid fuel cells, which can improve the electrocatalytic performance of the fuel cell by introducing commonly used metal elements to change the Pd electronic structure and can reduce the use of precious metals and the cost of catalyst production. In this study, PdCuSn Ns/C with a special 3D structure was synthesized by a simple two-step wet chemical method. The PdCuSn Ns/C catalyst prepared exhibits excellent catalytic activity and stability for the formic acid oxidation reaction (FAOR). The mass activity of 2420.1 mA mg-1Pd is 3.94 times that of the Pd/C catalyst. The improvement in the electrocatalytic performance stems from the introduction of Cu and Sn atoms and the unique 3D nanosheet structure, which changes the electronic structure of Pd to increase the reactive active site and accelerates the reaction mass transfer rate, and also reduces the content of precious metals, while improving the electrocatalytic performance. Therefore, the PdCuSn Ns/C catalyst has a promising future in the field of electrocatalysis.
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Affiliation(s)
- Fu-Kai Yang
- College of Chemistry and Chemical Engineering, Harbin Normal University, No. 1 Normal University South Road, Harbin, 150025, China.
| | - Yue Fang
- College of Chemistry and Chemical Engineering, Harbin Normal University, No. 1 Normal University South Road, Harbin, 150025, China.
| | - Fang-Fang Li
- College of Chemistry and Chemical Engineering, Harbin Normal University, No. 1 Normal University South Road, Harbin, 150025, China.
| | - Wei-Li Qu
- College of Chemistry and Chemical Engineering, Harbin Normal University, No. 1 Normal University South Road, Harbin, 150025, China.
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, China
| | - Chao Deng
- College of Chemistry and Chemical Engineering, Harbin Normal University, No. 1 Normal University South Road, Harbin, 150025, China.
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3
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Chen DN, Wang AJ, Feng JJ, Cheang TY. One-pot wet-chemical fabrication of 3D urchin-like core-shell Au@PdCu nanocrystals for electrochemical breast cancer immunoassay. Mikrochim Acta 2023; 190:353. [PMID: 37581740 DOI: 10.1007/s00604-023-05932-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 07/25/2023] [Indexed: 08/16/2023]
Abstract
Carbohydrate antigen 15-3 (CA15-3) is an important biomarker for early diagnosis of breast cancer. Herein, a label-free electrochemical immunosensor was built based on three-dimensional (3D) urchin-like core-shell Au@PdCu nanocrystals (labeled Au@PdCu NCs) for highly sensitive detection of CA15-3, where K3[Fe(CN)6] behaved as an electroactive probe. The Au@PdCu NCs were synthesized by a simple one-pot wet-chemical approach and the morphology, structures, and electrocatalytic property were investigated by several techniques. The Au@PdCu NCs prepared worked as electrode material to anchor more antibodies and as signal magnification material by virtue of its exceptional catalytic property. The developed biosensor exhibited a wide linear detection range from 0.1 to 300 U mL-1 and a low limit of detection (0.011 U mL-1, S/N = 3) for determination of CA15-3 under the optimal conditions. The established biosensing platform exhibits some insights for detecting other tumor biomarkers in clinical assays and early diagnosis.
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Affiliation(s)
- Di-Nan Chen
- Department of Breast Care Centre, the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, 510080, China
- College of Chemistry and Materials Science, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Ai-Jun Wang
- College of Chemistry and Materials Science, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Jiu-Ju Feng
- Department of Breast Care Centre, the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, 510080, China.
| | - Tuck Yun Cheang
- Department of Breast Care Centre, the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, 510080, China.
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4
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Jiang LY, Tian FM, Chen XY, Ren XX, Feng JJ, Yao Y, Zhang L, Wang AJ. Cu 2+-regulated one-pot wet-chemical synthesis of uniform PdCu nanostars for electrocatalytic oxidation of ethylene glycol and glycerol. J Colloid Interface Sci 2023; 649:118-124. [PMID: 37343391 DOI: 10.1016/j.jcis.2023.06.044] [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: 04/05/2023] [Revised: 05/30/2023] [Accepted: 06/08/2023] [Indexed: 06/23/2023]
Abstract
The fabrication of effective and stable electrocatalysts is crucial for practical applications of direct alcohol fuel cells (DAFCs). In this study, bimetallic PdCu nanostars (PdCu NSs) were fabricated by a Cu2+-modulated one-pot wet-chemical method, where cetyltrimethyl ammonium bromide (CTAB) worked as a structure-regulating reagent. The morphology, compositions, crystal structures and formation mechanism of the as-prepared PdCu NSs were investigated by a series of techniques. The unique architectures created abundant active sites, which resulted in a large electrochemical active surface area (9.5 m2 g-1). The PdCu NSs showed negative shifts in the onset potentials and large forward peak current densities by contrast with those of commercial Pd black for the catalytic ethylene glycol oxidation reaction (EGOR) and glycerol oxidation reaction (GOR). It revealed that the PdCu NSs outperformed Pd black in the similar surroundings. This work provides a constructive strategy for fabrication of high-efficiency electrocatalysts for alcohol fuel cells.
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Affiliation(s)
- Lu-Yao Jiang
- 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
| | - Fang-Min Tian
- 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
| | - Xiao-Yan Chen
- 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
| | - Xin-Xin Ren
- 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.
| | - Youqiang Yao
- Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, No. 1219, Zhongguan West Road, Zhenhai District, Ningbo 315201, 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
| | - 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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5
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Liu Z, Xue J, Li Y. Ultrathin PdCu Nanosheet as Bifunctional Electrocatalysts for Formate Oxidation Reaction and Oxygen Reduction Reaction. SMALL METHODS 2023:e2300021. [PMID: 36960934 DOI: 10.1002/smtd.202300021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/27/2023] [Indexed: 06/18/2023]
Abstract
The development of robust nonplatinum electrocatalysts to enhance the performance of formate oxidation reaction (FOR) and oxygen reduction reaction (ORR) is one of the key issues for the commercialization of direct formate fuel cells (DFFCs), but still challenging. Herein, a structurally controlled 3D flower-like PdCu nanosheet (NS) catalyst is synthesized by a method of oil bath reduction under mild conditions as a bifunctional electrocatalyst for DFFCs. Under the dual tuning on the composition and intermetallic phase, the PdCu nanosheet catalyst exhibits 8.67 times higher mass activity for anodic formate oxidation reaction than the commercial Pd/C. For the cathodic ORR, a positive shift half-wave potential is obtained for PdCu nanosheets exceeding Pt/C. Moreover, after a long-term stability test, the current density of the PdCu nanosheet catalyst for FOR and ORR can be well maintained with the least activity decay. When the PdCu NSs are used as optimized anode and cathode electrodes for DFFCs enable a peak power density as high as 53 mW cm-2 at room temperature, which is about 1.3 times higher than that of the commercial Pd/C and Pt/C as anode and cathode electrodes. This work provides a potential strategy to improve the catalytic performance of non-Pt-based nanocatalysts.
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Affiliation(s)
- Zhipeng Liu
- Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Jinling Xue
- Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Yinshi Li
- Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
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6
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Huang S, Li J, Wang X, Kang Y, Zhao Y, Wang H, Zhang P, Zhang L, Zhao C. Boosting the Electrocatalytic Formic Acid Oxidation Activity via P-PdAuAg Quaternary Alloying. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 36916029 DOI: 10.1021/acsami.3c00708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Direct formic acid fuel cells (DFAFCs) are considered promising sustainable power sources due to their high energy density, nonflammability, and low fuel crossover. However, serious CO poisoning and activity attenuation of the anodic formic acid oxidation reaction (FAOR) greatly restrict the output and durability of DFAFCs. Inspired by the specific relationship between the composition, type, and property of alloys, in this work, we synthesize a series of hybrid substitutional/interstitial quaternary alloys P-PdAuAg by means of a novel polyphosphide route to address these issues. Due to the simultaneous interstitial P-doping and metal (Au, Ag, Pd) co-reduction, the P-PdAuAg quaternary alloy obtained is only 3 nm in diameter with abundant defects. It not only achieves a new high mass activity of 8.08 A mgPd-1 (6.78 A mgcatalyst-1) but also maintains high stability in the high potential range and harsh reaction conditions. Both the activity and anti-poisoning ability are far exceeding those of the currently reported FAOR catalysts. Detailed density functional theory (DFT) calculations reveal that the superb electrochemical performances originate from the shift of the d-band center of Pd as a result of the synergistic electronic/ligand effects between Pd, Au, Ag, and P. The introduction of interstitial P inhibits the occurrence of an indirect reaction pathway on Pd, while Au and Ag suppress the adsorption of CO and optimize the sequential dehydrogenation steps, leading to boosted reaction kinetics and CO tolerance. This work pioneered a facile way for the synthesis of Pd-based substitutional/interstitial hybrid alloys, providing a promising means of further improving the performance of alloying catalysts.
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Affiliation(s)
- Shuke Huang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518071, China
| | - Jun Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518071, China
| | - Xiaosha Wang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518071, China
| | - Yongshuai Kang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518071, China
| | - Yongjian Zhao
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518071, China
| | - Hu Wang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518071, China
| | - Peixin Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518071, China
| | - Lei Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518071, China
| | - Chenyang Zhao
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518071, China
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7
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One-pot controllable epitaxial growth of Pd-based heterostructures for enhanced formic acid oxidation. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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8
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Yang P, Zhang L, Wei X, Dong S, Ouyang Y. Pd 3Co 1 Alloy Nanocluster on the MWCNT Catalyst for Efficient Formic Acid Electro-Oxidation. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4182. [PMID: 36500805 PMCID: PMC9740167 DOI: 10.3390/nano12234182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/19/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
In this study, the Pd3Co1 alloy nanocluster from a multiwalled carbon nanotube (MWCTN) catalyst was fabricated in deep eutectic solvents (DESs) (referred to Pd3Co1/CNTs). The catalyst shows a better mass activity towards the formic acid oxidation reaction (FAOR) (2410.1 mA mgPd-1), a better anti-CO toxicity (0.36 V) than Pd/CNTs and commercial Pd/C. The improved performance of Pd3Co1/CNTs is attributed to appropriate Co doping, which changed the electronic state around the Pd atom, lowered the d-band of Pd, formed a new Pd-Co bond act at the active sites, affected the adsorption of the toxic intermediates and weakened the dissolution of Pd; moreover, with the assistance of DES, the obtained ultrafine Pd3Co1 nanoalloy exposes more active sites to enhance the dehydrogenation process of the FAOR. The study shows a new way to construct a high-performance Pd-alloy catalyst for the direct formic acid fuel cell.
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9
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Fan F, Chen DH, Yang L, Qi J, Fan Y, Wang Y, Chen W. PtCuFe alloy nanochains: Synthesis and composition-performance relationship in methanol oxidation and hydrogen evolution reactions. J Colloid Interface Sci 2022; 628:153-161. [PMID: 35987154 DOI: 10.1016/j.jcis.2022.08.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 08/02/2022] [Accepted: 08/05/2022] [Indexed: 11/19/2022]
Abstract
The controllable synthesis of 1-dimensional (1D) multi-metal Pt-based alloys, with enhanced electro-chemical properties remains a challenge, despite the wide application of Pt-based catalysts in fuel cells and in the hydrogen evolution reaction (HER). Herein, we fabricate PtCuFe alloy nanochains (NCs) that have a tunable composition by flexibly adjusting the molar ratios of the metal precursors. It was found that Cu2+ is key in the formation of 1D NCs, as confirmed by transmission electron microscopy characterizations. In addition, the alloyed Fe can further increase the content of the metallic state of Cu in the PtCuFe NCs. The as-prepared PtCuFe NCs exhibited higher catalytic activity and stability than those of the Pt nanoparticles (NPs), PtFe NPs, and PtCu NCs, for the methanol oxidation reaction (MOR) and HER. Additionally, the composition-performance relationship of PtCuxFey NCs toward the MOR and HER were investigated. The hybrid density functional theory calculation and analysis showed that the 1D PtCuFe NCs have a lower lowest unoccupied molecular orbital (LUMO) than those of the 2- and 3-dimensional PtCuFe, verifying that the 1D PtCuFe NCs exhibit the highest activity for the MOR. This work has established a new method for the controllable synthesis of multi-metal Pt-based NCs/alloy catalysts and their subsequent applications in other electro-catalytic reactions.
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Affiliation(s)
- Fangfang Fan
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Du-Hong Chen
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Linjuan Yang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Jiuhui Qi
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Youjun Fan
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China.
| | - Yixuan Wang
- Department of Chemistry and Forensic Science, Albany State University, Albany, GA 31705, USA.
| | - Wei Chen
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China.
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10
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He P, Liu X, Yang X, Yan Z, Chen Y, Tian Z, Tian Q. Two-Step Fabrication of Carbon-Supported Cu@Pd Nanoparticles for Electro-Oxidation of Formic Acid. Catal Letters 2022. [DOI: 10.1007/s10562-022-04020-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Yang Q, Lin H, Wang X, Zhang LY, Jing M, Yuan W, Li CM. Dynamically self-assembled adenine-mediated synthesis of pristine graphene-supported clean Pd nanoparticles with superior electrocatalytic performance toward formic acid oxidation. J Colloid Interface Sci 2022; 613:515-523. [DOI: 10.1016/j.jcis.2022.01.061] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/09/2022] [Accepted: 01/09/2022] [Indexed: 10/19/2022]
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12
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Zeng T, Meng X, Huang H, Zheng L, Chen H, Zhang Y, Yuan W, Zhang LY. Controllable Synthesis of Web-Footed PdCu Nanosheets and Their Electrocatalytic Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107623. [PMID: 35152558 DOI: 10.1002/smll.202107623] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/09/2022] [Indexed: 05/13/2023]
Abstract
Morphological control of noble-metal-based nanocrystals has attracted enormous attention because their catalytic behaviors can be optimized well by adjusting the size and shape. Herein, the controllable synthesis of web-footed PdCu nanosheets via a facile surfactant-free method is reported. It is discovered that the Cu(II) precursor in this synthetic system displays a critical role in growing branches along the lateral of nanosheets. This work demonstrates a Pd-based alloy nanoarchitecture for efficient and stable electrocatalysis of both ethanal and formic acid oxidation reactions.
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Affiliation(s)
- Tiantian Zeng
- Institute of Materials for Energy and Environment, Qingdao University, Qingdao, 266071, P. R. China
| | - Xiaomin Meng
- Institute of Materials for Energy and Environment, Qingdao University, Qingdao, 266071, P. R. China
| | - Haowei Huang
- Institute of Materials for Energy and Environment, Qingdao University, Qingdao, 266071, P. R. China
| | - Linwei Zheng
- Institute of Materials for Energy and Environment, Qingdao University, Qingdao, 266071, P. R. China
| | - Haibo Chen
- Institute of Materials for Energy and Environment, Qingdao University, Qingdao, 266071, P. R. China
| | - Yun Zhang
- Institute of Materials for Energy and Environment, Qingdao University, Qingdao, 266071, P. R. China
| | - Weiyong Yuan
- Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies, Institute for Clean Energy and Advanced Materials, Southwest University, Chongqing, 400715, P. R. China
| | - Lian Ying Zhang
- Institute of Materials for Energy and Environment, Qingdao University, Qingdao, 266071, P. R. China
- Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies, Institute for Clean Energy and Advanced Materials, Southwest University, Chongqing, 400715, P. R. China
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13
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Huang S, Li J, Chen Y, Yan L, Zhang P, Zhang X, Zhao C. Boosting the anti-poisoning ability of palladium towards electrocatalytic formic acid oxidation via polyphosphide chemistry. J Colloid Interface Sci 2022; 615:366-374. [PMID: 35149350 DOI: 10.1016/j.jcis.2022.01.193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/20/2022] [Accepted: 01/30/2022] [Indexed: 10/19/2022]
Abstract
In this work, we reported a novel polyphosphide strategy for the synthesis of phosphorus doped Pd (P-Pd) using red phosphorus as the starting material at quasi-ambient conditions. Polyphophide anions, as the key reaction intermediates, served as the reducing agent and phosphorus source to modulate the surface electronic structure of Pd. The P-Pd obtained exhibited topmost CO tolerance and electrocatalytic activity to formic acid oxidation among the state-of-arts reports. The mass activity and turnover frequency of P-Pd reached 4413 mA mg-1Pd and 16.04 s-1 at 0.8 V, which were 23.7 and 6.4 times that of commercial Pd/C respectively. After 1000 repeated cycles, 82% initial activity was reserved. Combined with the electrochemical analysis and the density functional theory calculation, the boosted electrochemical performances can be attributed to the size and electronic effects induced by the P doping, which increase the surface actives sites, inhibit the adsorption of CO and change the reaction pathway to favorable CO2 route. A full cell was also assembled to demonstrate the practical potential of the P-Pd, which showed a maximum power density of 21.56 mW cm-2. This polyphophide-based reaction route provides a new strategy for the preparation of efficient and durable phosphorus doped alloys for electrocatalysis.
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Affiliation(s)
- Shuke Huang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518071, China
| | - Jun Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518071, China
| | - Yilan Chen
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518071, China
| | - Liwei Yan
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518071, China
| | - Peixin Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518071, China
| | - Xueyan Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518071, China
| | - Chenyang Zhao
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518071, China.
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