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Sharaf M, Zahra AA, Alharbi M, Mekky AE, Shehata AM, Alkhudhayri A, Ali AM, Al Suhaimi EA, Zakai SA, Al Harthi N, Liu CG. Bee chitosan nanoparticles loaded with apitoxin as a novel approach to eradication of common human bacterial, fungal pathogens and treating cancer. Front Microbiol 2024; 15:1345478. [PMID: 38559346 PMCID: PMC10978808 DOI: 10.3389/fmicb.2024.1345478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 02/08/2024] [Indexed: 04/04/2024] Open
Abstract
Antimicrobial resistance is one of the largest medical challenges because of the rising frequency of opportunistic human microbial infections across the globe. This study aimed to extract chitosan from the exoskeletons of dead bees and load it with bee venom (commercially available as Apitoxin [Api]). Then, the ionotropic gelation method would be used to form nanoparticles that could be a novel drug-delivery system that might eradicate eight common human pathogens (i.e., two fungal and six bacteria strains). It might also be used to treat the human colon cancer cell line (Caco2 ATCC ATP-37) and human liver cancer cell line (HepG2ATCC HB-8065) cancer cell lines. The x-ray diffraction (XRD), Fourier transform infrared (FTIR), and dynamic light scattering (DLS) properties, ζ-potentials, and surface appearances of the nanoparticles were evaluated by transmission electron microscopy (TEM). FTIR and XRD validated that the Api was successfully encapsulated in the chitosan nanoparticles (ChB NPs). According to the TEM, the ChB NPs and the ChB NPs loaded with Apitoxin (Api@ChB NPs) had a spherical shape and uniform size distribution, with non-aggregation, for an average size of approximately 182 and 274 ± 3.8 nm, respectively, and their Zeta potential values were 37.8 ± 1.2 mV and - 10.9 mV, respectively. The Api@ChB NPs had the greatest inhibitory effect against all tested strains compared with the ChB NPs and Api alone. The minimum inhibitory concentrations (MICs) of the Api, ChB NPs, and Api@ChB NPs were evaluated against the offer mentioned colony forming units (CFU/mL), and their lowest MIC values were 30, 25, and 12.5 μg mL-1, respectively, against Enterococcus faecalis. Identifiable morphological features of apoptosis were observed by 3 T3 Phototox software after Api@ChB NPs had been used to treat the normal Vero ATCC CCL-81, Caco2 ATCC ATP-37, and HepG2 ATCC HB-8065 cancer cell lines for 24 h. The morphological changes were clear in a concentration-dependent manner, and the ability of the cells was 250 to 500 μg mL-1. These results revealed that Api@ChB NPs may be a promising natural nanotreatment for common human pathogens.
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Affiliation(s)
- Mohamed Sharaf
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, China
- Department of Biochemistry, Faculty of Agriculture, AL-Azhar University, Cairo, Egypt
| | - Abdullah A. Zahra
- Department of Plant Protection, Faculty of Agriculture, AL-Azhar University, Cairo, Egypt
| | - Maha Alharbi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Alsayed E. Mekky
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | - Abdelrazeq M. Shehata
- Department of Animal Production, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
| | - Abdulsalam Alkhudhayri
- Department of Biology, College of Sciences, University of Hafr Al Batin, Hafar Al Batin, Saudi Arabia
| | - Ahmed M. Ali
- Department of Biology, Shaqra University, Shaqra, Saudi Arabia
| | - Ebtesam A. Al Suhaimi
- Vice Presidency for Scientific Research and Innovation, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
- King Abdulaziz and his Companions Foundation for Giftedness and Creativity “Mawhiba”, Riyadh, Saudi Arabia
| | - Shadi A. Zakai
- Department of Clinical Microbiology and Immunology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Norah Al Harthi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, Taif, Saudi Arabia
| | - Chen-Guang Liu
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, China
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Adhikari A, Chhetri K, Rai R, Acharya D, Kunwar J, Bhattarai RM, Jha RK, Kandel D, Kim HY, Kandel MR. (Fe-Co-Ni-Zn)-Based Metal-Organic Framework-Derived Electrocatalyst for Zinc-Air Batteries. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2612. [PMID: 37764640 PMCID: PMC10534837 DOI: 10.3390/nano13182612] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023]
Abstract
Zinc-air batteries (ZABs) have garnered significant interest as a viable substitute for lithium-ion batteries (LIBs), primarily due to their impressive energy density and low cost. However, the efficacy of zinc-air batteries is heavily dependent on electrocatalysts, which play a vital role in enhancing reaction efficiency and stability. This scholarly review article highlights the crucial significance of electrocatalysts in zinc-air batteries and explores the rationale behind employing Fe-Co-Ni-Zn-based metal-organic framework (MOF)-derived hybrid materials as potential electrocatalysts. These MOF-derived electrocatalysts offer advantages such as abundancy, high catalytic activity, tunability, and structural stability. Various synthesis methods and characterization techniques are employed to optimize the properties of MOF-derived electrocatalysts. Such electrocatalysts exhibit excellent catalytic activity, stability, and selectivity, making them suitable for applications in ZABs. Furthermore, they demonstrate notable capabilities in the realm of ZABs, encompassing elevated energy density, efficacy, and prolonged longevity. It is imperative to continue extensively researching and developing this area to propel the advancement of ZAB technology forward and pave the way for its practical implementation across diverse fields.
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Affiliation(s)
- Anup Adhikari
- Central Department of Chemistry, Tribhuvan University, Kathmandu 44618, Nepal; (A.A.); (J.K.)
| | - Kisan Chhetri
- Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 561-756, Republic of Korea; (D.A.); (H.Y.K.)
| | - Rajan Rai
- Department of Chemistry, Tri-Chandra Multiple Campus, Tribhuvan University, Kathmandu 44618, Nepal;
| | - Debendra Acharya
- Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 561-756, Republic of Korea; (D.A.); (H.Y.K.)
| | - Jyotendra Kunwar
- Central Department of Chemistry, Tribhuvan University, Kathmandu 44618, Nepal; (A.A.); (J.K.)
| | - Roshan Mangal Bhattarai
- Department of Chemical Engineering, Jeju National University, Jeju 690-756, Republic of Korea;
| | | | | | - Hak Yong Kim
- Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 561-756, Republic of Korea; (D.A.); (H.Y.K.)
| | - Mani Ram Kandel
- Department of Chemistry, Amrit Campus, Tribhuvan University, Kathmandu 44613, Nepal
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3
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Wang Y, Dutta A, Iarchuk A, Sun C, Vesztergom S, Broekmann P. Boosting Nitrate to Ammonia Electroconversion through Hydrogen Gas Evolution over Cu-foam@mesh Catalysts. ACS Catal 2023; 13:8169-8182. [PMID: 37342835 PMCID: PMC10278070 DOI: 10.1021/acscatal.3c00716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/23/2023] [Indexed: 06/23/2023]
Abstract
The hydrogen evolution reaction (HER) is often considered parasitic to numerous cathodic electro-transformations of high technological interest, including but not limited to metal plating (e.g., for semiconductor processing), the CO2 reduction reaction (CO2RR), the dinitrogen → ammonia conversion (N2RR), and the nitrate reduction reaction (NO3-RR). Herein, we introduce a porous Cu foam material electrodeposited onto a mesh support through the dynamic hydrogen bubble template method as an efficient catalyst for electrochemical nitrate → ammonia conversion. To take advantage of the intrinsically high surface area of this spongy foam material, effective mass transport of the nitrate reactants from the bulk electrolyte solution into its three-dimensional porous structure is critical. At high reaction rates, NO3-RR becomes, however, readily mass transport limited because of the slow nitrate diffusion into the three-dimensional porous catalyst. Herein, we demonstrate that the gas-evolving HER can mitigate the depletion of reactants inside the 3D foam catalyst through opening an additional convective nitrate mass transport pathway provided the NO3-RR becomes already mass transport limited prior to the HER onset. This pathway is achieved through the formation and release of hydrogen bubbles facilitating electrolyte replenishment inside the foam during water/nitrate co-electrolysis. This HER-mediated transport effect "boosts" the effective limiting current of nitrate reduction, as evidenced by potentiostatic electrolyses combined with an operando video inspection of the Cu-foam@mesh catalysts under operating NO3-RR conditions. Depending on the solution pH and the nitrate concentration, NO3-RR partial current densities beyond 1 A cm-2 were achieved.
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Affiliation(s)
- Yuzhen Wang
- Department
of Chemistry, Biochemistry and Pharmaceutical Science, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
- State
Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi’an University of Technology, No.5 South Jinhua Road, Xi’an, Shaanxi 710048, China
| | - Abhijit Dutta
- Department
of Chemistry, Biochemistry and Pharmaceutical Science, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
- National
Centre of Competence in Research (NCCR) Catalysis, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Anna Iarchuk
- Department
of Chemistry, Biochemistry and Pharmaceutical Science, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
- National
Centre of Competence in Research (NCCR) Catalysis, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Changzhe Sun
- Department
of Chemistry, Biochemistry and Pharmaceutical Science, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Soma Vesztergom
- Department
of Chemistry, Biochemistry and Pharmaceutical Science, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
- National
Centre of Competence in Research (NCCR) Catalysis, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
- MTA−ELTE
Momentum Interfacial Electrochemistry Research Group, Eötvös Loránd University, Pázmány Péter
sétány 1/A, 1117 Budapest, Hungary
| | - Peter Broekmann
- Department
of Chemistry, Biochemistry and Pharmaceutical Science, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
- National
Centre of Competence in Research (NCCR) Catalysis, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
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Hawsawi NM, Hamad AM, Rashid SN, Alshehri F, Sharaf M, Zakai SA, Al Yousef SA, Ali AM, Abou-Elnour A, Alkhudhayri A, Elrefaei NG, Elkelish A. Biogenic silver nanoparticles eradicate of Pseudomonas aeruginosa and Methicillin-resistant Staphylococcus aureus (MRSA) isolated from the sputum of COVID-19 patients. Front Microbiol 2023; 14:1142646. [PMID: 37143540 PMCID: PMC10153441 DOI: 10.3389/fmicb.2023.1142646] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 03/21/2023] [Indexed: 04/08/2023] Open
Abstract
In recent investigations, secondary bacterial infections were found to be strongly related to mortality in COVID-19 patients. In addition, Pseudomonas aeruginosa and Methicillin-resistant Staphylococcus aureus (MRSA) bacteria played an important role in the series of bacterial infections that accompany infection in COVID-19. The objective of the present study was to investigate the ability of biosynthesized silver nanoparticles from strawberries (Fragaria ananassa L.) leaf extract without a chemical catalyst to inhibit Gram-negative P. aeruginosa and Gram-positive Staph aureus isolated from COVID-19 patient’s sputum. A wide range of measurements was performed on the synthesized AgNPs, including UV–vis, SEM, TEM, EDX, DLS, ζ -potential, XRD, and FTIR. UV-Visible spectral showed the absorbance at the wavelength 398 nm with an increase in the color intensity of the mixture after 8 h passed at the time of preparation confirming the high stability of the FA-AgNPs in the dark at room temperature. SEM and TEM measurements confirmed AgNPs with size ranges of ∼40-∼50 nm, whereas the DLS study confirmed their average hydrodynamic size as ∼53 nm. Furthermore, Ag NPs. EDX analysis showed the presence of the following elements: oxygen (40.46%), and silver (59.54%). Biosynthesized FA-AgNPs (ζ = −17.5 ± 3.1 mV) showed concentration-dependent antimicrobial activity for 48 h in both pathogenic strains. MTT tests showed concentration-dependent and line-specific effects of FA-AgNPs on cancer MCF-7 and normal liver WRL-68 cell cultures. According to the results, synthetic FA-AgNPs obtained through an environmentally friendly biological process are inexpensive and may inhibit the growth of bacteria isolated from COVID-19 patients.
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Novel Copper Oxide Bio-Nanocrystals to Target Outer Membrane Lectin of Vancomycin-Resistant Enterococcus faecium (VREfm): In Silico, Bioavailability, Antimicrobial, and Anticancer Potential. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227957. [PMID: 36432057 PMCID: PMC9696412 DOI: 10.3390/molecules27227957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/06/2022] [Accepted: 11/09/2022] [Indexed: 11/19/2022]
Abstract
In present study, we used Olea europaea leaf extract to biosynthesize in situ Copper Oxide nanocrystals (CuO @OVLe NCs) with powerful antibacterial and anti-cancer capabilities. Physio-chemical analyses, such as UV/Vis, FTIR, XRD, EDX, SEM, and TEM, were applied to characterize CuO @OVLe NCs. The UV/Vis spectrum demonstrated a strong peak at 345 nm. Furthermore, FTIR, XRD, and EDX validated the coating operation's contact with colloidal CuO @OVLe NCs. According to TEM and SEM analyses, CuO @OVLe NCs exhibited a spherical shape and uniform distribution of size with aggregation, for an average size of ~75 nm. The nanoparticles demonstrated a considerable antibacterial effect against E. faecium bacterial growth, as well as an increased inhibition rate in a dose-dependent manner on the MCF-7, PC3, and HpeG2 cancer cell lines and a decreased inhibition rate on WRL-68. Molecular docking and MD simulation were used to demonstrate the high binding affinity of a ligand (Oleuropein) toward the lectin receptor complex of the outer membrane to vancomycin-resistant E. faecium (VREfm) via amino acids (Leu 195, Thr 288, His 165, and Ser 196). Hence, our results expand the accessibility of OVLe's bioactive components as a promising natural source for the manufacture of physiologically active components and the creation of green biosynthesis of metal nanocrystals.
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In Situ Biosynthesis of Reduced Alpha Hematite (α-Fe2O3) Nanoparticles by Stevia Rebaudiana L. Leaf Extract: Insights into Antioxidant, Antimicrobial, and Anticancer Properties. Antibiotics (Basel) 2022; 11:antibiotics11091252. [PMID: 36140030 PMCID: PMC9495369 DOI: 10.3390/antibiotics11091252] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 09/07/2022] [Accepted: 09/10/2022] [Indexed: 11/17/2022] Open
Abstract
In the present study, we utilized Stevia rebaudiana L. (SRLe) extract to in situ biosynthesize nanoscale alpha hematite (α-Fe2O3) nanoparticles (NPs) with potent antioxidant, antimicrobial, and anticancer properties. SRLe-α-Fe2O3 was characterized using physiochemical analyses, including UV/Vis, FTIR, XRD, DLS, EDX, SEM, and TEM studies. Among tested solvents, CHCl3/MeOH (2:1 v/v) SRL extract (least polar solvent) contained the highest EY, TPC, and antioxidant capacity of ~3.5%, ~75 mg GAE/g extract, and IC50 = 9.87 ± 0.7 mg/mL, respectively. FTIR confirmed the engagement of coating operation to the colloidal α-Fe2O3 NPs. TEM, SEM, and DLS revealed that SRLe-α-Fe2O3 has a spherical shape, uniform size distribution with aggregation for an average size of ~18.34 nm, and ζ = −19.4 mV, forming a repulsive barrier that helped to improve stability. The synthesized nanoparticles displayed considerable antibacterial activity against E. coli and S. aureus bacterial growth, and exhibited superior activity against the A549 lung cancer cell lines. These findings indicate that the increased availability of bioactive substances with antioxidant properties of SRLe makes it a potentially interesting material for the preparation of biologically active compounds and green synthesis of nanoparticles.
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Kong Y, Liu M, Hu H, Hou Y, Vesztergom S, Gálvez-Vázquez MDJ, Zelocualtecatl Montiel I, Kolivoška V, Broekmann P. Cracks as Efficient Tools to Mitigate Flooding in Gas Diffusion Electrodes Used for the Electrochemical Reduction of Carbon Dioxide. SMALL METHODS 2022; 6:e2200369. [PMID: 35810472 DOI: 10.1002/smtd.202200369] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 06/28/2022] [Indexed: 06/15/2023]
Abstract
The advantage of employing gas diffusion electrodes (GDEs) in carbon dioxide reduction electrolyzers is that they allow CO2 to reach the catalyst in gaseous state, enabling current densities that are orders of magnitude larger than what is achievable in standard H-type cells. The gain in the reaction rate comes, however, at the cost of stability issues related to flooding that occurs when excess electrolyte permeates the micropores of the GDE, effectively blocking the access of CO2 to the catalyst. For electrolyzers operated with alkaline electrolytes, flooding leaves clear traces within the GDE in the form of precipitated potassium (hydrogen)carbonates. By analyzing the amount and distribution of precipitates, and by quantifying potassium salts transported through the GDE during operation (electrolyte perspiration), important information can be gained with regard to the extent and means of flooding. In this work, a novel combination of energy dispersive X-ray and inductively coupled plasma mass spectrometry based methods is employed to study flooding-related phenomena in GDEs differing in the abundance of cracks in the microporous layer. It is concluded that cracks play an important role in the electrolyte management of CO2 electrolyzers, and that electrolyte perspiration through cracks is paramount in avoiding flooding-related performance drops.
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Affiliation(s)
- Ying Kong
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, 3012, Bern, Switzerland
- National Centre of Competence in Research (NCCR) Catalysis, University of Bern, 3012, Bern, Switzerland
| | - Menglong Liu
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, 3012, Bern, Switzerland
- National Centre of Competence in Research (NCCR) Catalysis, University of Bern, 3012, Bern, Switzerland
| | - Huifang Hu
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, 3012, Bern, Switzerland
| | - Yuhui Hou
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, 3012, Bern, Switzerland
- National Centre of Competence in Research (NCCR) Catalysis, University of Bern, 3012, Bern, Switzerland
| | - Soma Vesztergom
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, 3012, Bern, Switzerland
- Department of Physical Chemistry, Eötvös Loránd University, 1117, Budapest, Hungary
| | | | - Iván Zelocualtecatl Montiel
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, 3012, Bern, Switzerland
| | - Viliam Kolivoška
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, 18223, Prague, Czech Republic
| | - Peter Broekmann
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, 3012, Bern, Switzerland
- National Centre of Competence in Research (NCCR) Catalysis, University of Bern, 3012, Bern, Switzerland
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Koolen CD, Torrent L, Agarwal A, Meili-Borovinskaya O, Gasilova N, Li M, Luo W, Züttel A. High-Throughput Sizing, Counting, and Elemental Analysis of Anisotropic Multimetallic Nanoparticles with Single-Particle Inductively Coupled Plasma Mass Spectrometry. ACS NANO 2022; 16:11968-11978. [PMID: 35876240 DOI: 10.1021/acsnano.2c01840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Nanoparticles (NPs) have wide applications in physical and chemical processes, and their individual properties (e.g., shape, size, and composition) and ensemble properties (e.g., distribution and homogeneity) can significantly affect the performance. However, the extrapolation of information from a single particle to the ensemble remains a challenge due to the lack of suitable techniques. Herein, we report a high-throughput single-particle inductively coupled plasma mass spectrometry (SP-ICP-MS)-based protocol to simultaneously determine the size, count, and elemental makeup of several thousands of (an)isotropic NPs independent of composition, size, shape, and dispersing medium with atomistic precision in a matter of minutes. By introducing highly diluted nebulized aqueous dispersions of NPs directly into the plasma torch of an ICP-MS instrument, individual NPs are atomized and ionized, resulting in ion plumes that can be registered by the mass analyzer. Our proposed protocol includes a phase transfer step for NPs synthesized in organic media, which are otherwise incompatible with ICP-MS instruments, and a modeling tool that extends the measurement of particle morphologies beyond spherical to include cubes, truncated octahedra, and tetrahedra, exemplified by anisotropic Cu NPs. Finally, we demonstrate the versatility of our method by studying the doping of bulk-dilute (<1 at. %) CuAg nanosurface alloys as well as the ease with which ensemble composition distributions of multimetallic NPs (i.e., CuPd and CuPdAg) can be obtained providing different insights in the chemistry of nanomaterials. We believe our combined protocol could deepen the understanding of macroscopic phenomena involving nanoscale structures by bringing about a statistics renaissance in research areas including, among others, materials science, materials chemistry, (nano)physics, (nano)photonics, catalysis, and electrochemistry.
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Affiliation(s)
- Cedric David Koolen
- Laboratory of Materials for Renewable Energy (LMER), Institute of Chemical Sciences and Engineering (ISIC), Basic Science Faculty (SB), École Polytechnique Fédérale de Lausanne (EPFL) Valais/Wallis, Energypolis, Sion 1951, Switzerland
- Empa Materials Science and Technology, Dübendorf 8600, Switzerland
| | - Laura Torrent
- Bioenergy and Catalysis Laboratory (LBK), Energy and Environment Research Division (ENE), Paul Scherrer Institute (PSI), Villigen 5232, Switzerland
| | - Ayush Agarwal
- Bioenergy and Catalysis Laboratory (LBK), Energy and Environment Research Division (ENE), Paul Scherrer Institute (PSI), Villigen 5232, Switzerland
- School of Architecture, Civil and Environmental Engineering (ENAC IIE GR-LUD), École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1035, Switzerland
| | | | - Natalia Gasilova
- Mass Spectrometry and Elemental Analysis Platform (MSEAP), Institute of Chemical Sciences and Engineering (ISIC), Basic Science Faculty (SB), École Polytechnique Fédérale de Lausanne (EPFL) Valais/Wallis, Energypolis, Sion 1951, Switzerland
| | - Mo Li
- Laboratory of Materials for Renewable Energy (LMER), Institute of Chemical Sciences and Engineering (ISIC), Basic Science Faculty (SB), École Polytechnique Fédérale de Lausanne (EPFL) Valais/Wallis, Energypolis, Sion 1951, Switzerland
- Empa Materials Science and Technology, Dübendorf 8600, Switzerland
| | - Wen Luo
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Andreas Züttel
- Laboratory of Materials for Renewable Energy (LMER), Institute of Chemical Sciences and Engineering (ISIC), Basic Science Faculty (SB), École Polytechnique Fédérale de Lausanne (EPFL) Valais/Wallis, Energypolis, Sion 1951, Switzerland
- Empa Materials Science and Technology, Dübendorf 8600, Switzerland
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Hu H, Liu M, Kong Y, Montiel IZ, Hou Y, Rudnev AV, Broekmann P. Size‐dependent Structural Alterations in Ag Nanoparticles During CO2 Electrolysis in a Gas‐fed Zero‐gap Electrolyzer. ChemElectroChem 2022. [DOI: 10.1002/celc.202200615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Huifang Hu
- University of Bern: Universitat Bern Chemistry, Biochemistry and Pharmaceutical Sciences SWITZERLAND
| | - Menglong Liu
- University of Bern: Universitat Bern Chemistry, Biochemistry and Pharmaceutical Sciences SWITZERLAND
| | - Ying Kong
- University of Bern: Universitat Bern Chemistry, Biochemistry and Pharmaceutical Sciences SWITZERLAND
| | | | - Yuhui Hou
- University of Bern: Universitat Bern Chemistry, Biochemistry and Pharmaceutical Sciences SWITZERLAND
| | - Alexander V. Rudnev
- University of Bern: Universitat Bern Chemistry, Biochemistry and Pharmaceutical Sciences Freiestrasse 3 3012 Bern SWITZERLAND
| | - Peter Broekmann
- University of Bern: Universitat Bern Chemistry, Biochemistry and Pharmaceutical Sciences SWITZERLAND
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Liu M, Kong Y, Hu H, Kovács N, Sun C, Zelocualtecatl Montiel I, Gálvez Vázquez MDJ, Hou Y, Mirolo M, Martens I, Drnec J, Vesztergom S, Broekmann P. The capping agent is the key: Structural alterations of Ag NPs during CO2 electrolysis probed in a zero-gap gas-flow configuration. J Catal 2021. [DOI: 10.1016/j.jcat.2021.10.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Popovic S, Bele M, Hodnik N. Reconstruction of Copper Nanoparticles at Electrochemical CO
2
Reduction Reaction Conditions Occurs
via
Two‐step Dissolution/Redeposition Mechanism. ChemElectroChem 2021. [DOI: 10.1002/celc.202100387] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Stefan Popovic
- Department of Materials Chemistry National Institute of Chemistry Hajdrihova 19 1000 Ljubljana Slovenia
- University of Nova Gorica Vipavska 13 5000 Nova Gorica Slovenia
| | - Marjan Bele
- Department of Materials Chemistry National Institute of Chemistry Hajdrihova 19 1000 Ljubljana Slovenia
| | - Nejc Hodnik
- Department of Materials Chemistry National Institute of Chemistry Hajdrihova 19 1000 Ljubljana Slovenia
- University of Nova Gorica Vipavska 13 5000 Nova Gorica Slovenia
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