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Bakadia BM, Zheng R, Qaed Ahmed AA, Shi Z, Babidi BL, Sun T, Li Y, Yang G. Teicoplanin-Decorated Reduced Graphene Oxide Incorporated Silk Protein Hybrid Hydrogel for Accelerating Infectious Diabetic Wound Healing and Preventing Diabetic Foot Osteomyelitis. Adv Healthc Mater 2024; 13:e2304572. [PMID: 38656754 DOI: 10.1002/adhm.202304572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 04/08/2024] [Indexed: 04/26/2024]
Abstract
Developing hybrid hydrogel dressings with anti-inflammatory, antioxidant, angiogenetic, and antibiofilm activities with higher bone tissue penetrability to accelerate diabetic wound healing and prevent diabetic foot osteomyelitis (DFO) is highly desirable in managing diabetic wounds. Herein, the glycopeptide teicoplanin is used for the first time as a green reductant to chemically reduce graphene oxide (GO). The resulting teicoplanin-decorated reduced graphene oxide (rGO) is incorporated into a mixture of silk proteins (SP) and crosslinked with genipin to yield a physicochemically crosslinked rGO-SP hybrid hydrogel. This hybrid hydrogel exhibits high porosity, self-healing, shear-induced thinning, increased cell proliferation and migration, and mechanical properties suitable for tissue engineering. Moreover, the hybrid hydrogel eradicates bacterial biofilms with a high penetrability index in agar and hydroxyapatite disks covered with biofilms, mimicking bone tissue. In vivo, the hybrid hydrogel accelerates the healing of noninfected wounds in a diabetic rat and infected wounds in a diabetic mouse by upregulating anti-inflammatory cytokines and downregulating matrix metalloproteinase-9, promoting M2 macrophage polarization and angiogenesis. The implantation of hybrid hydrogel into the infected site of mouse tibia improves bone regeneration. Hence, the rGO-SP hybrid hydrogel can be a promising wound dressing for treating infectious diabetic wounds, providing a further advantage in preventing DFO.
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Affiliation(s)
- Bianza Moise Bakadia
- Innovation Research Center for AIE Pharmaceutical Biology, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Ruizhu Zheng
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Abeer Ahmed Qaed Ahmed
- Department of Molecular Medicine, Biochemistry Unit, University of Pavia, Pavia, 27100, Italy
| | - Zhijun Shi
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Bakamona Lyna Babidi
- Institut Supérieur des Techniques Médicales de Lubumbashi, Lubumbashi, 4748, Democratic Republic of the Congo
| | - Tun Sun
- Innovation Research Center for AIE Pharmaceutical Biology, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Ying Li
- Innovation Research Center for AIE Pharmaceutical Biology, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Guang Yang
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
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Wang Y, Zhu X, Wu Y, Man Z, Wen X, Lü Z. Boosting the kinetics with graphene quantum dots (GQDs)-decorated NiCo2O4 nanosheets towards high-performance Li-O2 batteries. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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3
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Montserrat-Sisó G, Wickman B. PdNi thin films for hydrogen oxidation reaction and oxygen reduction reaction in alkaline media. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Li J, Sun X, Duan Y, Jia D, Li Y, Wang J. Enhanced oxygen reduction reaction performance over Pd catalysts by oxygen-surface-modified SiC. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63716-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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An B, Li J, Wu X, Li W, Li Y, Sun L, Mi H, Zhang Q, He C, Ren X. One-pot synthesis of N,S-doped pearl chain tube-loaded Ni 3S 2 composite materials for high-performance lithium-air batteries. NANOSCALE 2020; 12:21770-21779. [PMID: 33095215 DOI: 10.1039/d0nr06344d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
To improve the high reversibility of lithium-air batteries, an air electrode needs to have excellent electrochemical performance and spatial structure. Ni3S2 nanoparticles are loaded onto an N,S-doped pearl chain tube (N,S-PCT) by a method called quasi-chemical vapor deposition (Q-CVD). Additionally, N and S are doped during the synthesis process, thereby forming an ideal pipe rack-like structure. The large amount of space in the tube rack can provide sufficient storage to act as a buffer for the discharge products, and the interconnected tubes can effectively promote the dispersion of O2 and electrolyte. The addition of Ni3S2 nanoparticles effectively reduces the charge transfer resistance, thereby increasing the electron mobility of the cathode. Ni3S2@N,S-PCT cathodes effectively improve the cycling and high-rate performance of lithium-air batteries, demonstrating an ultrahigh discharge capacity of 16 733.7 mA h g-1 at a current density of 400 mA g-1 and an ultrahigh discharge capacity of 5088.1 mA h g-1 at a current density of 1000 mA g-1. When the cut-off capacity is 1000 mA h g-1, the battery with the Ni3S2@N,S-PCT-800 electrode can achieve cycling stability for 148 cycles. This research provides a new solution for the design of lithium-air batteries with high electrocatalytic performance.
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Affiliation(s)
- Bohan An
- College of Chemistry and Environmental Engineering, Shenzhen University, Guangdong 518060, PR China.
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Bimetallic PdZn nanoparticles for oxygen reduction reaction in alkaline medium: The effects of surface structure. J Catal 2020. [DOI: 10.1016/j.jcat.2019.12.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Yu P, Xu H, Jin L, Chen C, Shang H, Liu Q, Du Y. A novel catalyst for efficient electrooxidation of ethanol enabled by 3D open-structured PdCu nanocages. J Colloid Interface Sci 2019; 555:195-202. [DOI: 10.1016/j.jcis.2019.07.092] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 07/27/2019] [Accepted: 07/29/2019] [Indexed: 11/17/2022]
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8
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Pan Y, Zhu Y, Shen J, Chen Y, Li C. Carbon-loaded ultrafine fully crystalline phase palladium-based nanoalloy PdCoNi/C: facile synthesis and high activity for formic acid oxidation. NANOSCALE 2019; 11:17334-17339. [PMID: 31517374 DOI: 10.1039/c9nr06671c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Recent studies have found surface engineering to be an effective strategy to improve the catalytic performance of noble-metal based catalysts. Herein, the successful synthesis of a fully crystalline PdCoNi alloy supported on carbon is reported. The as-synthesized catalyst has an ultrafine nanoparticle size distribution with low-coordination active sites distributed on the surface which was clearly captured by scanning transmission electron microscopy. The fully crystalline PdCoNi/C shows a significant enlarged electrochemical surface area (ECSA) and improved Pd-based mass activity and specific activity compared with bimetallic PdCo/C, PdNi/C and partly crystalline PdCoNi/C. An enhancement of the formic acid oxidation reaction activity can be explained by: (1) ultrafine size distribution from the greatly enlarged ECSA; (2) enhancement of the synergistic effect of the ternary PdCoNi alloy; (3) easier formation of a possible Pd intermediate state, PdHx, due to the regular atom arrangement being fully crystalline. This approach provides a strategy to design noble-metal-based catalysts for improved electrochemical performance.
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Affiliation(s)
- Yu Pan
- Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Yihua Zhu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Jianhua Shen
- Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Ying Chen
- Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Chunzhong Li
- Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China. and School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China.
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Li Z, Gu B, Jiang Z, Zhao X, Zhu W, Zhang Y, Li T, Du X, Wu J. Three-dimensional flower-like Pd3Pb nanocrystals enable efficient ethylene glycol electrocatalytic oxidation. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2018.10.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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One-pot construction of N-doped graphene supported 3D PdAg nanoflower as efficient catalysts for ethylene glycol electrooxidation. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2018.10.059] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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11
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Zhang C, Yang J, Mi H, Li Y, Zhang P, Zhang H. A carob-inspired nanoscale design of yolk–shell Si@void@TiO2-CNF composite as anode material for high-performance lithium-ion batteries. Dalton Trans 2019; 48:6846-6852. [DOI: 10.1039/c9dt01130g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The one-dimensional yolk–shell structured Si@void@TiO2-CNF anode delivers improved specific capacity and cycling performance for lithium ion batteries.
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Affiliation(s)
- Chenle Zhang
- College of Chemistry and Environmental Engineering
- Shenzhen University
- Shenzhen
- P. R. China
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education
| | - Jingbo Yang
- College of Chemistry and Environmental Engineering
- Shenzhen University
- Shenzhen
- P. R. China
| | - Hongwei Mi
- College of Chemistry and Environmental Engineering
- Shenzhen University
- Shenzhen
- P. R. China
- Guangdong Flexible Wearable Energy and Tools Engineering Technology Research Centre
| | - Yongliang Li
- College of Chemistry and Environmental Engineering
- Shenzhen University
- Shenzhen
- P. R. China
- Guangdong Flexible Wearable Energy and Tools Engineering Technology Research Centre
| | - Peixin Zhang
- College of Chemistry and Environmental Engineering
- Shenzhen University
- Shenzhen
- P. R. China
- Guangdong Flexible Wearable Energy and Tools Engineering Technology Research Centre
| | - Han Zhang
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province
- Shenzhen University
- Shenzhen 518060
- P. R. China
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Liu L, Wei Q, Yu X, Zhang Y. Metal-Organic Framework-Derived Co 3O 4/Au Heterostructure as a Catalyst for Efficient Oxygen Reduction. ACS APPLIED MATERIALS & INTERFACES 2018; 10:34068-34076. [PMID: 30220195 DOI: 10.1021/acsami.8b06292] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Porous nanostructures with a yolk-shell complex interior will provide lots of virtues to construct advanced catalysts. In our work, the preparation of novel yolk-shell Au nanocrystal-loaded Co3O4 nanocages (Co3O4/Au heterostructure) from a metal-organic framework-derived composite was reported. Scanning electron microscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, Brunauer-Emmett-Teller analysis, and so forth were used to analyze the morphology, structure, and composition of the heterostructures. Most importantly, Co3O4/Au heterostructures are a kind of low-cost, good performance catalysts for the oxygen reduction reaction to replace the noble-Pt catalysts. The high surface area of the porous structure and the excellent electron transfer properties of well-dispersed Au nanocrystals and also the electronic coupling effect between Co3O4 and Au in the composites are attributed to the good performance.
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Affiliation(s)
- Lei Liu
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , China
- National Laboratory of Mineral Materials, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, School of Materials Science and Technology , China University of Geosciences , Beijing 100083 , China
| | - Qin Wei
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , China
| | - Xuelian Yu
- National Laboratory of Mineral Materials, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, School of Materials Science and Technology , China University of Geosciences , Beijing 100083 , China
| | - Yihe Zhang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , China
- National Laboratory of Mineral Materials, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, School of Materials Science and Technology , China University of Geosciences , Beijing 100083 , China
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One-pot fabrication of Nitrogen-doped graphene supported binary palladium-sliver nanocapsules enable efficient ethylene glycol electrocatalysis. J Colloid Interface Sci 2018; 535:392-399. [PMID: 30317079 DOI: 10.1016/j.jcis.2018.10.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 09/20/2018] [Accepted: 10/03/2018] [Indexed: 11/20/2022]
Abstract
Fuel cells hold great potential of replacing traditional fossil fuel to alleviate the energy crisis and increasing environmental concerns. Although great progresses have been achieved over decades, the sluggish reaction kinetics and poor durability of electrocatalysts in fuel cells have been the decisive bottleneck that limited their practical applications. Herein, we focus on the design and development of cost-efficient anode electrocatalysts for fuel cells and report the successful creation of an advanced class of N-doped graphene (NG) supported binary PdAg nanocapsules (PdAg NCPs). The well-defined nanocatalysts with highly open structure exhibit greatly improved electrocatalytic performances for ethylene glycol oxidation reaction (EGOR). In particular, the optimized PdAg NCPs/NG show the mass and specific activities of 6118.3 mA mg-1 and 13.8 mA cm-2, which are 5.8 and 6.9 times larger than those of the commercial Pd/C catalysts, respectively. More importantly, such PdAg NCPs/NG can also maintain at least 500 potential cycles with limited catalytic activity attenuation, showing an advanced class of electrocatalysts for fuel cells.
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Wang S, Teng Z, Wang C, Wang G. Stable and Efficient Nitrogen-Containing Carbon-Based Electrocatalysts for Reactions in Energy-Conversion Systems. CHEMSUSCHEM 2018; 11:2267-2295. [PMID: 29770593 DOI: 10.1002/cssc.201800509] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 04/21/2018] [Indexed: 05/14/2023]
Abstract
High activity and stability are crucial for the practical use of electrocatalysts in fuel cells, metal-air batteries, and water electrolysis, including the oxygen reduction reaction, hydrogen evolution reaction, oxygen evolution reaction, and oxidation reactions of formic acid and alcohols. Electrocatalysts based on nitrogen-containing carbon (N-C) materials show promise in catalyzing these reactions; however, there is no systematic review of strategies for the engineering of active and stable N-C-based electrocatalysts. Herein, a comprehensive comparison of recently reported N-C-based electrocatalysts regarding both electrocatalytic activity and long-term stability is presented. In the first part of this review, the relationships between the electrocatalytic reactions and selection of the element to modify the N-C-based materials are discussed. Afterwards, synthesis methods for N-C-based electrocatalysts are summarized, and strategies for the synthesis of highly stable N-C-based electrocatalysts are presented. Multiple tables containing data on crucial parameters for both electrocatalytic activity and stability are displayed in this review. Finally, constructing M-Nx moieties is proposed as the most promising engineering strategy for stable N-C-based electrocatalysts.
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Affiliation(s)
- Sicong Wang
- College of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Environmental Engineering and Monitoring, Yangzhou University, 180 Si-Wang-Ting Road, Yangzhou, 225002, PR China
| | - Zhengyuan Teng
- College of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Environmental Engineering and Monitoring, Yangzhou University, 180 Si-Wang-Ting Road, Yangzhou, 225002, PR China
| | - Chengyin Wang
- College of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Environmental Engineering and Monitoring, Yangzhou University, 180 Si-Wang-Ting Road, Yangzhou, 225002, PR China
| | - Guoxiu Wang
- Center for Clean Energy Technology, Faculty of Science, University of Technology Sydney, Broadway, Sydney, NSW, 2007, Australia
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Maiti K, Balamurugan J, Peera SG, Kim NH, Lee JH. Highly Active and Durable Core-Shell fct-PdFe@Pd Nanoparticles Encapsulated NG as an Efficient Catalyst for Oxygen Reduction Reaction. ACS APPLIED MATERIALS & INTERFACES 2018; 10:18734-18745. [PMID: 29756758 DOI: 10.1021/acsami.8b04060] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Development of highly active and durable catalysts for oxygen reduction reaction (ORR) alternative to Pt-based catalyst is an essential topic of interest in the research community but a challenging task. Here, we have developed a new type of face-centered tetragonal (fct) PdFe-alloy nanoparticle-encapsulated Pd (fct-PdFe@Pd) anchored onto nitrogen-doped graphene (NG). This core-shell fct-PdFe@Pd@NG hybrid is fabricated by a facile and cost-effective technique. The effect of temperature on the transformation of face-centered cubic (fcc) to fct structure and their effect on ORR activity are systematically investigated. The core-shell fct-PdFe@Pd@NG hybrid exerts high synergistic interaction between fct-PdFe@Pd NPs and NG shell, beneficial to enhance the catalytic ORR activity and excellent durability. Impressively, core-shell fct-PdFe@Pd@NG hybrid exhibits an excellent catalytic activity for ORR with an onset potential of ∼0.97 V and a half-wave potential of ∼0.83 V versus relative hydrogen electrode, ultrahigh current density, and decent durability after 10 000 potential cycles, which is significantly higher than that of marketable Pt/C catalyst. Furthermore, the core-shell fct-PdFe@Pd@NG hybrid also shows excellent tolerance to methanol, unlike the commercial Pt/C catalyst. Thus, these findings open a new protocol for fabricating another core-shell hybrid by facile and cost-effective techniques, emphasizing great prospect in next-generation energy conversion and storage applications.
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Electrocatalytic Performance of Carbon Supported WO3-Containing Pd–W Nanoalloys for Oxygen Reduction Reaction in Alkaline Media. Catalysts 2018. [DOI: 10.3390/catal8060225] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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3D-ordered porous nitrogen and sulfur Co-Doped carbon supported PdCuW nanoparticles as efficient catalytic cathode materials for Li-O 2 batteries. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.03.150] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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18
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Zhang K, Xu H, Yan B, Wang J, Du Y, Liu Q. Superior ethylene glycol oxidation electrocatalysis enabled by hollow PdNi nanospheres. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.02.123] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Wu XT, Li JC, Pan QR, Li N, Liu ZQ. Gallic acid-assisted synthesis of Pd uniformly anchored on porous N-rGO as efficient electrocatalyst for microbial fuel cells. Dalton Trans 2018; 47:1442-1450. [PMID: 29299573 DOI: 10.1039/c7dt04063f] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The sluggish kinetic rate-limiting oxygen reduction reaction (ORR) at the cathode remains the foremost issue hindering the commercialization of microbial fuel cells (MFCs). Utilization of the effect of micromolecule conjugation and the synergistic effect between Pd nanoparticles and N-rGO (nitrogen-doped reduced graphene oxide) to stabilize a precious metal onto carbon materials is a promising strategy to design and synthesize highly efficient cathode catalysts. In this study, gallic acid is used to facilitate the coupling of palladium (Pd) with N-rGO to form GN@Pd-GA via a simple hydrothermal process. Notably, the as-synthesized GN@Pd-GA as a cathode catalyst shows an approximately direct four-electron feature and demonstrates a high ORR performance in 0.1 M KOH. Furthermore, the stability and methanol tolerance of GN@Pd-GA are superior to those of the commercial Pt/C catalysts. In addition, a maximum power density of 391.06 ± 0.2 mW m-2 of MFCs equipped with GN@Pd-GA was obtained, which was 96.2% of the power density of MFCs equipped with a commercial Pt/C catalyst.
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Affiliation(s)
- Xiao-Tong Wu
- School of Chemistry and Chemical Engineering/Guangzhou Key Laboratory for Environmentally Functional Materials and Technology/Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, PR China.
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Lu Y, Zhao S, Yang R, Xu D, Yang J, Lin Y, Shi NE, Dai Z, Bao J, Han M. Well-Coupled Nanohybrids Obtained by Component-Controlled Synthesis and in Situ Integration of Mn xPd y Nanocrystals on Vulcan Carbon for Electrocatalytic Oxygen Reduction. ACS APPLIED MATERIALS & INTERFACES 2018; 10:8155-8164. [PMID: 29384648 DOI: 10.1021/acsami.7b13872] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Development of cheap, highly active, and robust bimetallic nanocrystal (NC)-based nanohybrid (NH) electrocatalysts for oxygen reduction reaction (ORR) is helpful for advancing fuel cells or other renewable energy technologies. Here, four kinds of well-coupled Mn xPd y(MnPd3, MnPd-Pd, Mn2Pd3, Mn2Pd3-Mn11Pd21)/C NHs have been synthesized by in situ integration of Mn xPd y NCs with variable component ratios on pretreated Vulcan XC-72 C using the solvothermal method accompanied with annealing under Ar/H2 atmosphere and used as electrocatalysts for ORR. Among them, the MnPd3/C NHs possess the unique "half-embedded and half-encapsulated" interfaces and exhibit the highest catalytic activity, which can compete with some currently reported non-Pt catalysts (e.g., Ag-Co nanoalloys, Pd2NiAg NCs, PdCo/N-doped porous C, G-Cu3Pd nanocomposites, etc.), and close to commercial Pt/C. Electrocatalytic dynamic measurements disclose that their ORR mechanism abides by the direct 4e- pathway. Moreover, their durability and methanol-tolerant capability are much higher than that of Pt/C. As revealed by spectroscopic and electrochemical analyses, the excellent catalytic performance of MnPd3/C NHs results from the proper component ratio of Mn and Pd and the strong interplay of their constituents, which not only facilitate to optimize the d-band center or the electronic structure of Pd but also induce the phase transformation of MnPd3 active components and enhance their conductivity or interfacial electron transfer dynamics. This work demonstrates that MnPd3/C NHs are promising methanol-tolerant cathode electrocatalysts that may be employed in fuel cells or other renewable energy option.
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Affiliation(s)
- Yanan Lu
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , P. R. China
| | - Shulin Zhao
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , P. R. China
- Hefei National Laboratory for Physical Sciences at the Microscale , University of Science & Technology of China , Hefei 230026 , China
| | - Rui Yang
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , P. R. China
- Key Laboratory for Organic Electronics and Information Displays, Institute of Advanced Materials , Nanjing University of Posts & Telecommunications , Nanjing 210023 , P. R. China
| | - Dongdong Xu
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , P. R. China
| | - Jing Yang
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , P. R. China
| | - Yue Lin
- Hefei National Laboratory for Physical Sciences at the Microscale , University of Science & Technology of China , Hefei 230026 , China
| | - Nai-En Shi
- Key Laboratory for Organic Electronics and Information Displays, Institute of Advanced Materials , Nanjing University of Posts & Telecommunications , Nanjing 210023 , P. R. China
| | - Zhihui Dai
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , P. R. China
| | - Jianchun Bao
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , P. R. China
| | - Min Han
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , P. R. China
- State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Solid State Microstructures , Nanjing University , Nanjing 210093 , P. R. China
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Li Y, Lin S, Ren X, Mi H, Zhang P, Sun L, Deng L, Gao Y. One-step rapid in-situ synthesis of nitrogen and sulfur co-doped three-dimensional honeycomb-ordered carbon supported PdNi nanoparticles as efficient electrocatalyst for oxygen reduction reaction in alkaline solution. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.08.143] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Xu H, Yan B, Zhang K, Wang J, Li S, Wang C, Xiong Z, Shiraishi Y, Du Y. Self-Supported Worm-like PdAg Nanoflowers as Efficient Electrocatalysts towards Ethylene Glycol Oxidation. ChemElectroChem 2017. [DOI: 10.1002/celc.201700611] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hui Xu
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Bo Yan
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Ke Zhang
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Jin Wang
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Shumin Li
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Caiqin Wang
- Department of Chemistry University of Toronto; Toronto M5S3H4 Canada
| | - Zhiping Xiong
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Yukihide Shiraishi
- Tokyo University of Science Yamaguchi; Sanyo-Onoda-shi Yamaguchi 756-0884 Japan
| | - Yukou Du
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
- Tokyo University of Science Yamaguchi; Sanyo-Onoda-shi Yamaguchi 756-0884 Japan
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