51
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Chandrashekar S, van Montfort HPI, Bohra D, Filonenko G, Geerlings H, Burdyny T, Smith WA. Investigating the role of potassium cations during electrochemical CO 2 reduction. NANOSCALE 2022; 14:14185-14190. [PMID: 36124967 DOI: 10.1039/d2nr03438g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The specific identity of electrolyte cations has many implications in various electrochemical reactions. However, the exact mechanism by which cations affect electrochemical reactions is not agreed upon in the literature. In this report, we investigate the role of cations during the electrochemical reduction of CO2 by chelating the cations with cryptands, to change the interaction of the cations with the components of the electric double layer. As previously reported we do see the apparent suppression of CO2 reduction in the absence of cations. However, using in situ-SEIRAS we see that CO2 reduction does indeed take place albeit at very reduced scales. We also observe that cations play a role in tuning the absorption strengths of not only CO2 as has been speculated, but also that of reaction products such as CO.
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Affiliation(s)
- Sanjana Chandrashekar
- Materials for Energy Conversion and Storage (MECS), Department of Chemical Engineering, Delft University of Technology, 2629 HZ, Delft, The Netherlands.
| | - Hugo-Pieter Iglesias van Montfort
- Materials for Energy Conversion and Storage (MECS), Department of Chemical Engineering, Delft University of Technology, 2629 HZ, Delft, The Netherlands.
| | - Divya Bohra
- Materials for Energy Conversion and Storage (MECS), Department of Chemical Engineering, Delft University of Technology, 2629 HZ, Delft, The Netherlands.
| | - Georgy Filonenko
- Inorganic Systems Engineering (ISE), Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Hans Geerlings
- Materials for Energy Conversion and Storage (MECS), Department of Chemical Engineering, Delft University of Technology, 2629 HZ, Delft, The Netherlands.
| | - Thomas Burdyny
- Materials for Energy Conversion and Storage (MECS), Department of Chemical Engineering, Delft University of Technology, 2629 HZ, Delft, The Netherlands.
| | - Wilson A Smith
- Materials for Energy Conversion and Storage (MECS), Department of Chemical Engineering, Delft University of Technology, 2629 HZ, Delft, The Netherlands.
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52
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Tran B, Cai Y, Janik MJ, Milner ST. Hydrogen Bond Thermodynamics in Aqueous Acid Solutions: A Combined DFT and Classical Force-Field Approach. J Phys Chem A 2022; 126:7382-7398. [PMID: 36190836 DOI: 10.1021/acs.jpca.2c04124] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The thermodynamics of hydrogen bonds in aqueous and acidic solutions significantly impacts the kinetics and thermodynamics of acid reaction chemistry. We utilize in this work a multiscale approach, combining density functional theory (DFT) with classical molecular dynamics (MD) to model hydrogen bond thermodynamics in an acidic solution. Using thermodynamic cycles, we split the solution phase free energy into its gas phase counterpart plus solvation free energies. We validate this DFT/MD approach by calculating the aqueous phase hydrogen bond free energy between two water molecules (H2O-···-H2O), the free energy to transform an H3O+ cation into an H5O2+ cation, and the hydrogen bond free energy of protonated water clusters (H3O+-···-H2O and H5O2+-···-H2O). The computed equilibrium hydrogen bond free energy of H2O-···-H2O is remarkably accurate, especially considering the large individual contributions to the thermodynamic cycle. Turning to cations, we find the ion to be more stable than H3O+ by roughly 1-2 kBT. This small free energy difference allows for thermal fluctuation between the two idealized motifs, consistent with spectroscopic and simulation studies. Lastly, hydrogen bonding free energies between either H+ cation and H2O in solution were found to be stronger than between two H2O, though much less so than in vacuum because of dielectric screening in solution. Altogether, our results suggest the DFT/MD approach is promising for application in modeling hydrogen bonding and proton transfer thermodynamics in condensed phases.
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Affiliation(s)
- Bolton Tran
- Department of Chemical Engineering, Pennsylvania State University, University Park, Pennsylvania16801, United States
| | - Yusheng Cai
- Department of Chemical & Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania19104, United States
| | - Michael J Janik
- Department of Chemical Engineering, Pennsylvania State University, University Park, Pennsylvania16801, United States
| | - Scott T Milner
- Department of Chemical Engineering, Pennsylvania State University, University Park, Pennsylvania16801, United States
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53
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Probing the relationship between bulk and local environments to understand impacts on electrocatalytic oxygen reduction reaction. J Catal 2022. [DOI: 10.1016/j.jcat.2022.08.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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54
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Bendadesse E, Morozov AV, Abakumov AM, Perrot H, Tarascon JM, Sel O. Deciphering the Double-Layer Structure and Dynamics on a Model Li xMoO 3 Interface by Advanced Electrogravimetric Analysis. ACS NANO 2022; 16:14907-14917. [PMID: 35984450 DOI: 10.1021/acsnano.2c05784] [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
A major feature of the electrolyte/electrode interface (EEI) that affects charge storage in lithium-ion batteries is the electrical double layer (EDL), but most of the available experimental approaches for probing its structuration have limitations due to electrical field and redox reaction disturbances, hence explaining why it is frequently overlooked. Herein we show that this is no longer true by using an advanced electrochemical quartz crystal microbalance (EQCM)-based method in the form of ac-electrogravimetry. For proof of concept, we studied the effect of various solvent/salt combinations, differing in their dipole moment and size/weight, respectively, on the structure of the EDL forming at the EEI of LixMoO3. We show that a significant amount of solvated lithium ions and anions contribute to charge compensation at the interface, and by varying the nature of the solvents (cyclic vs noncyclic), we provide a solid experimental proof of the direct relationship between the ions' solvation and solvent polarity. Moreover, we demonstrated a disappearance of the anionic motion in the less polar solvent (DMC) most likely due to plausible formation of contact ion pairs and agglomerates at the EDL level. Altogether, ac-electrogravimetry, when combined with classical EQCM, stands as an elegant and powerful method to experimentally assess the chemical structure and dynamics of the electrical double layer. We hope that the community will start to adopt it to better engineer interfaces of electrochemical energy storage devices.
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Affiliation(s)
- Ezzoubair Bendadesse
- Chimie du Solide et de l'Energie, UMR 8260, Collège de France, 11 Place Marcelin Berthelot, 75231 Paris Cedex 05, France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E), CNRS FR 3459, 33 Rue Saint Leu, 80039 Amiens Cedex, France
- Sorbonne Université, CNRS, Laboratoire Interfaces et Systèmes Electrochimiques, LISE, UMR 8235, 4 Place Jussieu, 75005 Paris, France
| | - Anatolii V Morozov
- Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, Nobel Str. 3, 121205 Moscow, Russia
| | - Artem M Abakumov
- Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, Nobel Str. 3, 121205 Moscow, Russia
| | - Hubert Perrot
- Sorbonne Université, CNRS, Laboratoire Interfaces et Systèmes Electrochimiques, LISE, UMR 8235, 4 Place Jussieu, 75005 Paris, France
| | - Jean-Marie Tarascon
- Chimie du Solide et de l'Energie, UMR 8260, Collège de France, 11 Place Marcelin Berthelot, 75231 Paris Cedex 05, France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E), CNRS FR 3459, 33 Rue Saint Leu, 80039 Amiens Cedex, France
| | - Ozlem Sel
- Chimie du Solide et de l'Energie, UMR 8260, Collège de France, 11 Place Marcelin Berthelot, 75231 Paris Cedex 05, France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E), CNRS FR 3459, 33 Rue Saint Leu, 80039 Amiens Cedex, France
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55
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Shin SJ, Choi H, Ringe S, Won DH, Oh HS, Kim DH, Lee T, Nam DH, Kim H, Choi CH. A unifying mechanism for cation effect modulating C1 and C2 productions from CO 2 electroreduction. Nat Commun 2022; 13:5482. [PMID: 36123326 PMCID: PMC9485141 DOI: 10.1038/s41467-022-33199-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 09/07/2022] [Indexed: 02/05/2023] Open
Abstract
Electrocatalysis, whose reaction venue locates at the catalyst-electrolyte interface, is controlled by the electron transfer across the electric double layer, envisaging a mechanistic link between the electron transfer rate and the electric double layer structure. A fine example is in the CO2 reduction reaction, of which rate shows a strong dependence on the alkali metal cation (M+) identity, but there is yet to be a unified molecular picture for that. Using quantum-mechanics-based atom-scale simulation, we herein scrutinize the M+-coupling capability to possible intermediates, and establish H+- and M+-associated ET mechanisms for CH4 and CO/C2H4 formations, respectively. These theoretical scenarios are successfully underpinned by Nernstian shifts of polarization curves with the H+ or M+ concentrations and the first-order kinetics of CO/C2H4 formation on the electrode surface charge density. Our finding further rationalizes the merit of using Nafion-coated electrode for enhanced C2 production in terms of enhanced surface charge density.
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Affiliation(s)
- Seung-Jae Shin
- grid.37172.300000 0001 2292 0500Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, 34141 Republic of Korea
| | - Hansol Choi
- grid.61221.360000 0001 1033 9831School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005 Republic of Korea
| | - Stefan Ringe
- grid.222754.40000 0001 0840 2678Department of Chemistry, Korea University, Seoul, 02841 Republic of Korea
| | - Da Hye Won
- grid.35541.360000000121053345Clean Energy Research Center, Korea Institute of Science and Technology, Seoul, 02792 Republic of Korea
| | - Hyung-Suk Oh
- grid.35541.360000000121053345Clean Energy Research Center, Korea Institute of Science and Technology, Seoul, 02792 Republic of Korea
| | - Dong Hyun Kim
- grid.49100.3c0000 0001 0742 4007Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673 Republic of Korea
| | - Taemin Lee
- grid.417736.00000 0004 0438 6721Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology, Daegu, 42988 Republic of Korea
| | - Dae-Hyun Nam
- grid.417736.00000 0004 0438 6721Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology, Daegu, 42988 Republic of Korea
| | - Hyungjun Kim
- grid.37172.300000 0001 2292 0500Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, 34141 Republic of Korea
| | - Chang Hyuck Choi
- grid.49100.3c0000 0001 0742 4007Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673 Republic of Korea
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56
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Li M, Yang K, Abdinejad M, Zhao C, Burdyny T. Advancing integrated CO 2 electrochemical conversion with amine-based CO 2 capture: a review. NANOSCALE 2022; 14:11892-11908. [PMID: 35938674 DOI: 10.1039/d2nr03310k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Carbon dioxide (CO2) electrolysis is a promising route to utilise captured CO2 as a building block to produce valuable feedstocks and fuels such as carbon monoxide and ethylene. Very recently, CO2 electrolysis has been proposed as an alternative process to replace the amine recovery unit of the commercially available amine-based CO2 capture process. This process would replace the most energy-intensive unit operation in amine scrubbing while providing a route for CO2 conversion. The key enabler for such process integration is to develop an efficient integrated electrolyser that can convert CO2 and recover the amine simultaneously. Herein, this review provides an overview of the fundamentals and recent progress in advancing integrated CO2 conversion in amine-based capture media. This review first discusses the mechanisms for both CO2 absorption in the capture medium and electrochemical conversion of the absorbed CO2. We then summarise recent advances in improving the efficiency of integrated electrolysis via innovating electrodes, tailoring the local reaction environment, optimising operation conditions (e.g., temperatures and pressures), and modifying cell configurations. This review is concluded with future research directions for understanding and developing integrated CO2 electrolysers.
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Affiliation(s)
- Mengran Li
- Materials for Energy Conversion and Storage (MECS), Department of Chemical Engineering, the Delft University of Technology, van der Maasweg 9, 2629 HZ Delft, The Netherlands.
| | - Kailun Yang
- Materials for Energy Conversion and Storage (MECS), Department of Chemical Engineering, the Delft University of Technology, van der Maasweg 9, 2629 HZ Delft, The Netherlands.
| | - Maryam Abdinejad
- Materials for Energy Conversion and Storage (MECS), Department of Chemical Engineering, the Delft University of Technology, van der Maasweg 9, 2629 HZ Delft, The Netherlands.
| | - Chuan Zhao
- School of Chemistry, The University of New South Wales, Sydney, 2052, New South Wales, Australia
| | - Thomas Burdyny
- Materials for Energy Conversion and Storage (MECS), Department of Chemical Engineering, the Delft University of Technology, van der Maasweg 9, 2629 HZ Delft, The Netherlands.
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57
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Ovalle VJ, Hsu YS, Agrawal N, Janik MJ, Waegele MM. Correlating hydration free energy and specific adsorption of alkali metal cations during CO2 electroreduction on Au. Nat Catal 2022. [DOI: 10.1038/s41929-022-00816-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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58
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Rebstock JA, Zhu Q, Baker LR. Comparing interfacial cation hydration at catalytic active sites and spectator sites on gold electrodes: understanding structure sensitive CO 2 reduction kinetics. Chem Sci 2022; 13:7634-7643. [PMID: 35872825 PMCID: PMC9242014 DOI: 10.1039/d2sc01878k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 06/09/2022] [Indexed: 12/12/2022] Open
Abstract
Hydrated cations present in the electrochemical double layer (EDL) are known to play a crucial role in electrocatalytic CO2 reduction (CO2R), and numerous studies have attempted to explain how the cation effect contributes to the complex CO2R mechanism. CO2R is a structure sensitive reaction, indicating that a small fraction of total surface sites may account for the majority of catalytic turnover. Despite intense interest in specific cation effects, probing site-specific, cation-dependent solvation structures remains a significant challenge. In this work, CO adsorbed on Au is used as a vibrational Stark reporter to indirectly probe solvation structure using vibrational sum frequency generation (VSFG) spectroscopy. Two modes corresponding to atop adsorption of CO are observed with unique frequency shifts and potential-dependent intensity profiles, corresponding to direct adsorption of CO to inactive surface sites, and in situ generated CO produced at catalytic active sites. Analysis of the cation-dependent Stark tuning slopes for each of these species provides estimates of the hydrated cation radius upon adsorption to active and inactive sites on the Au electrode. While cations are found to retain their bulk hydration shell upon adsorption at inactive sites, catalytic active sites are characterized by a single layer of water between the Au surface and the electrolyte cation. We propose that the drastic increase in catalytic performance at active sites stems from this unique solvation structure at the Au/electrolyte interface. Building on this evidence of a site-specific EDL structure will be critical to understand the connection between cation-dependent interfacial solvation and CO2R performance.
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Affiliation(s)
- Jaclyn A Rebstock
- Department of Chemistry and Biochemistry, The Ohio State University Columbus Ohio 43210 USA
| | - Quansong Zhu
- Department of Chemistry and Biochemistry, The Ohio State University Columbus Ohio 43210 USA
| | - L Robert Baker
- Department of Chemistry and Biochemistry, The Ohio State University Columbus Ohio 43210 USA
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59
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Schneider S, Brodrecht M, Breitzke H, Wissel T, Buntkowsky G, Varol HS, Brilmayer R, Andrieu-Brunsen A, Vogel M. Local and diffusive dynamics of LiCl aqueous solutions in pristine and modified silica nanopores. J Chem Phys 2022; 157:034503. [DOI: 10.1063/5.0098483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We use 1H, 2H, and 7Li NMR to investigate local and diffusive dynamics of LiCl-7H2O and LiCl-7D2O solutions in pristine and functionalized silica nanopores in a component-selective manner. Recently, we showed that the solution dynamics become slower when the diameter of the pristine pores is reduced. Here, we determine the effects of (aminopropyl)triethoxysilane and dye surface functionalizations on the motions of the water molecules and lithium ions from ambient temperatures down to the glass transition. The local and diffusive solution dynamics are similar in both functionalized pores but, on average, slower than in pristine pores with comparable diameters. When the exchange between different confinement regions is sufficiently slow at reduced temperatures, bimodal water and lithium dynamics may be observed. We attribute this bimodality to bulk-like motion in the pore centers and slowed-down motion at the pore walls. For the lithium ions, a bimodality observed in the pristine pores is absent in the functionalized ones. We conjecture that the steric hindrance and electrostatic interactions associated with the grafted functional groups interfere with the formation of a defined electric double layer, while the enhanced surface roughness and unequal charge distribution result in overall slower dynamics. Thus, the nature of the walls is an important parameter for the solution dynamics. Thereby, in-situ measurements of the pH value inside the silica pores using the grafted dye molecules reveal that observed changes in the pH value in response to the surface functionalization are of limited relevance for the water reorientation.
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Affiliation(s)
| | | | | | | | - Gerd Buntkowsky
- Physical Chemistry, Darmstadt University of Technology, Germany
| | | | | | | | - Michael Vogel
- Institute of Condensed Matter Physics, TU Darmstadt, Germany
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60
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Vos RE, Koper MTM. The Effect of Temperature on the Cation‐Promoted Electrochemical CO
2
Reduction on Gold. ChemElectroChem 2022. [DOI: 10.1002/celc.202200239] [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]
Affiliation(s)
- Rafaël E. Vos
- Leiden Institute of Chemistry Leiden University 2300 RA Leiden
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61
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Chatenet M, Pollet BG, Dekel DR, Dionigi F, Deseure J, Millet P, Braatz RD, Bazant MZ, Eikerling M, Staffell I, Balcombe P, Shao-Horn Y, Schäfer H. Water electrolysis: from textbook knowledge to the latest scientific strategies and industrial developments. Chem Soc Rev 2022; 51:4583-4762. [PMID: 35575644 PMCID: PMC9332215 DOI: 10.1039/d0cs01079k] [Citation(s) in RCA: 172] [Impact Index Per Article: 86.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Indexed: 12/23/2022]
Abstract
Replacing fossil fuels with energy sources and carriers that are sustainable, environmentally benign, and affordable is amongst the most pressing challenges for future socio-economic development. To that goal, hydrogen is presumed to be the most promising energy carrier. Electrocatalytic water splitting, if driven by green electricity, would provide hydrogen with minimal CO2 footprint. The viability of water electrolysis still hinges on the availability of durable earth-abundant electrocatalyst materials and the overall process efficiency. This review spans from the fundamentals of electrocatalytically initiated water splitting to the very latest scientific findings from university and institutional research, also covering specifications and special features of the current industrial processes and those processes currently being tested in large-scale applications. Recently developed strategies are described for the optimisation and discovery of active and durable materials for electrodes that ever-increasingly harness first-principles calculations and machine learning. In addition, a technoeconomic analysis of water electrolysis is included that allows an assessment of the extent to which a large-scale implementation of water splitting can help to combat climate change. This review article is intended to cross-pollinate and strengthen efforts from fundamental understanding to technical implementation and to improve the 'junctions' between the field's physical chemists, materials scientists and engineers, as well as stimulate much-needed exchange among these groups on challenges encountered in the different domains.
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Affiliation(s)
- Marian Chatenet
- University Grenoble Alpes, University Savoie Mont Blanc, CNRS, Grenoble INP (Institute of Engineering and Management University Grenoble Alpes), LEPMI, 38000 Grenoble, France
| | - Bruno G Pollet
- Hydrogen Energy and Sonochemistry Research group, Department of Energy and Process Engineering, Faculty of Engineering, Norwegian University of Science and Technology (NTNU) NO-7491, Trondheim, Norway
- Green Hydrogen Lab, Institute for Hydrogen Research (IHR), Université du Québec à Trois-Rivières (UQTR), 3351 Boulevard des Forges, Trois-Rivières, Québec G9A 5H7, Canada
| | - Dario R Dekel
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
- The Nancy & Stephen Grand Technion Energy Program (GTEP), Technion - Israel Institute of Technology, Haifa 3200003, Israel
| | - Fabio Dionigi
- Department of Chemistry, Chemical Engineering Division, Technical University Berlin, 10623, Berlin, Germany
| | - Jonathan Deseure
- University Grenoble Alpes, University Savoie Mont Blanc, CNRS, Grenoble INP (Institute of Engineering and Management University Grenoble Alpes), LEPMI, 38000 Grenoble, France
| | - Pierre Millet
- Paris-Saclay University, ICMMO (UMR 8182), 91400 Orsay, France
- Elogen, 8 avenue du Parana, 91940 Les Ulis, France
| | - Richard D Braatz
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Martin Z Bazant
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- Department of Mathematics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
| | - Michael Eikerling
- Chair of Theory and Computation of Energy Materials, Division of Materials Science and Engineering, RWTH Aachen University, Intzestraße 5, 52072 Aachen, Germany
- Institute of Energy and Climate Research, IEK-13: Modelling and Simulation of Materials in Energy Technology, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Iain Staffell
- Centre for Environmental Policy, Imperial College London, London, UK
| | - Paul Balcombe
- Division of Chemical Engineering and Renewable Energy, School of Engineering and Material Science, Queen Mary University of London, London, UK
| | - Yang Shao-Horn
- Research Laboratory of Electronics and Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Helmut Schäfer
- Institute of Chemistry of New Materials, The Electrochemical Energy and Catalysis Group, University of Osnabrück, Barbarastrasse 7, 49076 Osnabrück, Germany.
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62
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Schmickler W, Santos E. Desorption of hydrogen from graphene induced by charge injection. ChemElectroChem 2022. [DOI: 10.1002/celc.202200511] [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)
| | - Elizabeth Santos
- Ulm University: Universitat Ulm Instiitute of Theoretical Chemistry Albert Einstein Allee 11 89089 Ulm GERMANY
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63
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Lemaire P, Serva A, Salanne M, Rousse G, Perrot H, Sel O, Tarascon JM. Probing the Electrode-Electrolyte Interface of a Model K-Ion Battery Electrode─The Origin of Rate Capability Discrepancy between Aqueous and Non-Aqueous Electrolytes. ACS APPLIED MATERIALS & INTERFACES 2022; 14:20835-20847. [PMID: 35481776 DOI: 10.1021/acsami.1c24111] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Li-ion batteries are the electrochemical energy storage technology of choice of today's electrical vehicles and grid applications with a growing interest for Na-ion and K-ion systems based on either aqueous or non-aqueous electrolyte for power, cost, and sustainable reasons. The rate capability of alkali-metal-ion batteries is influenced by ion transport properties in the bulk of the electrolyte, as well as by diverse effects occurring at the vicinity of the electrode and electrolyte interface. Therefore, identification of the predominant factor affecting the rate capability of electrodes still remains a challenge and requires suitable experimental and computational methods. Herein, we investigate the mechanistic of the K+ insertion process in the Prussian blue phase, Fe4III[FeII(CN)6]3 in both aqueous and non-aqueous electrolytes, which reveals drastic differences. Through combined electrochemical characterizations, electrochemical-quartz-crystal-microbalance and ac-electrogravimetric analyses, we provide evidences that what matters the most for fast ion transport is the positioning of the partially solvated cations adsorbed at the material surface in aqueous as opposed to non-aqueous electrolytes. We rationalized such findings by molecular dynamics simulations that establish the K+ repartition profile within the electrochemical double layer. A similar trend was earlier reported by our group for the aqueous versus non-aqueous insertion of Li+ into LiFePO4. Such a study unveils the critical but overlooked role of the electrode-electrolyte interface in ruling ion transport and insertion processes. Tailoring this interface structuring via the proper salt-solvent interaction is the key to enabling the best power performances in alkali-metal-ion batteries.
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Affiliation(s)
- Pierre Lemaire
- Chimie du Solide et de l'Energie, UMR 8260, Collège de France, 11 Place Marcelin Berthelot, Paris Cedex 05 75231, France
- Sorbonne Université, 4 Place Jussieu, Paris 75005, France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E), CNRS FR 3459, 33 Rue Saint Leu, Amiens Cedex 80039, France
| | - Alessandra Serva
- Sorbonne Université, CNRS, Physico-chimie des Électrolytes et Nanosystèmes Interfaciaux, PHENIX, Paris F-75005, France
| | - Mathieu Salanne
- Sorbonne Université, CNRS, Physico-chimie des Électrolytes et Nanosystèmes Interfaciaux, PHENIX, Paris F-75005, France
- Institut Universitaire de France (IUF), 75231 Paris Cedex 05, France
| | - Gwënaelle Rousse
- Chimie du Solide et de l'Energie, UMR 8260, Collège de France, 11 Place Marcelin Berthelot, Paris Cedex 05 75231, France
- Sorbonne Université, 4 Place Jussieu, Paris 75005, France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E), CNRS FR 3459, 33 Rue Saint Leu, Amiens Cedex 80039, France
- Institut Universitaire de France (IUF), 75231 Paris Cedex 05, France
| | - Hubert Perrot
- Sorbonne Université, CNRS, Laboratoire Interfaces et Systèmes Electrochimiques, LISE, UMR 8235, 4 Place Jussieu, Paris 75005, France
| | - Ozlem Sel
- Chimie du Solide et de l'Energie, UMR 8260, Collège de France, 11 Place Marcelin Berthelot, Paris Cedex 05 75231, France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E), CNRS FR 3459, 33 Rue Saint Leu, Amiens Cedex 80039, France
| | - Jean-Marie Tarascon
- Chimie du Solide et de l'Energie, UMR 8260, Collège de France, 11 Place Marcelin Berthelot, Paris Cedex 05 75231, France
- Réseau sur le Stockage Electrochimique de l'Energie (RS2E), CNRS FR 3459, 33 Rue Saint Leu, Amiens Cedex 80039, France
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64
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Schmickler W, Belletti G, Quaino P. The approach of alkali ions towards an electrode surface – A molecular dynamics study. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139518] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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65
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Dattila F, Seemakurthi RR, Zhou Y, López N. Modeling Operando Electrochemical CO 2 Reduction. Chem Rev 2022; 122:11085-11130. [PMID: 35476402 DOI: 10.1021/acs.chemrev.1c00690] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Since the seminal works on the application of density functional theory and the computational hydrogen electrode to electrochemical CO2 reduction (eCO2R) and hydrogen evolution (HER), the modeling of both reactions has quickly evolved for the last two decades. Formulation of thermodynamic and kinetic linear scaling relationships for key intermediates on crystalline materials have led to the definition of activity volcano plots, overpotential diagrams, and full exploitation of these theoretical outcomes at laboratory scale. However, recent studies hint at the role of morphological changes and short-lived intermediates in ruling the catalytic performance under operating conditions, further raising the bar for the modeling of electrocatalytic systems. Here, we highlight some novel methodological approaches employed to address eCO2R and HER reactions. Moving from the atomic scale to the bulk electrolyte, we first show how ab initio and machine learning methodologies can partially reproduce surface reconstruction under operation, thus identifying active sites and reaction mechanisms if coupled with microkinetic modeling. Later, we introduce the potential of density functional theory and machine learning to interpret data from Operando spectroelectrochemical techniques, such as Raman spectroscopy and extended X-ray absorption fine structure characterization. Next, we review the role of electrolyte and mass transport effects. Finally, we suggest further challenges for computational modeling in the near future as well as our perspective on the directions to follow.
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Affiliation(s)
- Federico Dattila
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Ranga Rohit Seemakurthi
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Yecheng Zhou
- School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Núria López
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007 Tarragona, Spain
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66
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Ge W, Chen Y, Fan Y, Zhu Y, Liu H, Song L, Liu Z, Lian C, Jiang H, Li C. Dynamically Formed Surfactant Assembly at the Electrified Electrode-Electrolyte Interface Boosting CO 2 Electroreduction. J Am Chem Soc 2022; 144:6613-6622. [PMID: 35380035 DOI: 10.1021/jacs.2c02486] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Electrocatalytic reactions occur in the nanoscale space at the electrified electrode-electrolyte interface. It is well known that the electrode-electrolyte interface, also called as interfacial microenvironment, is difficult to investigate due to the interference of bulk electrolytes and its dynamic evolution in response to applied bias potential. Here, we employ electrochemical co-reduction of CO2 and H2O on commercial Ag electrodes as a model system, in conjunction with quaternary ammonium cationic surfactants as electrolyte additives. We probe bias-potential-driven dynamic response of the interfacial microenvironment as well as the mechanistic origin of catalytic selectivity. By virtue of comprehensive in situ vibrational spectroscopy, electrochemical impedance spectroscopy, and molecular dynamics simulations, it is revealed that the structure of surfactants is dynamically changed from a random distribution to a nearly ordered assembly with increasing bias potential. The nearly ordered surfactant assembly regulates the interfacial water environment by repelling isolated water and suppressing water orientation into an ordered structure as well as promotes CO2 enrichment at the electrified interface. Eventually, the formed hydrophobic-aerophilic interface microenvironment reduces the activity of water dissociation and increases the selectivity of CO2 electroreduction to CO. These results highlight the importance of regulating the interfacial microenvironment by organic additives as a means of boosting the electrochemical performance in electrosynthesis and beyond.
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Affiliation(s)
- Wangxin Ge
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China.,Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yuxin Chen
- State Key Laboratory of Chemical Engineering, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yu Fan
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yihua Zhu
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Honglai Liu
- State Key Laboratory of Chemical Engineering, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Li Song
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Zhen Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Cheng Lian
- State Key Laboratory of Chemical Engineering, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hongliang Jiang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Chunzhong Li
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China.,Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
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67
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Water Composition and Electrocatalytic Aspects for Efficient Chlorine Generation. Electrocatalysis (N Y) 2022. [DOI: 10.1007/s12678-022-00728-4] [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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68
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Sinha V, Khramenkova E, Pidko EA. Solvent-mediated outer-sphere CO 2 electro-reduction mechanism over the Ag111 surface. Chem Sci 2022; 13:3803-3808. [PMID: 35432905 PMCID: PMC8966634 DOI: 10.1039/d1sc07119j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 02/23/2022] [Indexed: 12/01/2022] Open
Abstract
The electrocatalytic CO2 reduction reaction (CO2RR) is one of the key technologies of the clean energy economy. Molecular-level understanding of the CO2RR process is instrumental for the better design of electrodes operable at low overpotentials with high current density. The catalytic mechanism underlying the turnover and selectivity of the CO2RR is modulated by the nature of the electrocatalyst, as well as the electrolyte liquid, and its ionic components that form the electrical double layer (EDL). Herein we demonstrate the critical non-innocent role of the EDL for the activation and conversion of CO2 at a high cathodic bias for electrocatalytic conversion over a silver surface as a representative low-cost model cathode. By using a multiscale modeling approach we demonstrate that under such conditions a dense EDL is formed, which hinders the diffusion of CO2 towards the Ag111 electrocatalyst surface. By combining DFT calculations and ab initio molecular dynamics simulations we identify favorable pathways for CO2 reduction directly over the EDL without the need for adsorption to the catalyst surface. The dense EDL promotes homogeneous phase reduction of CO2via electron transfer from the surface to the electrolyte. Such an outer-sphere mechanism favors the formation of formate as the CO2RR product. The formate can undergo dehydration to CO via a transition state stabilized by solvated alkali cations in the EDL. In addition to the commonly accepted inner-sphere mechanism for e− transfer, we show that an outer-sphere electron transfer from the cathode to CO2 is operable at high overpotentials.![]()
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Affiliation(s)
- Vivek Sinha
- Inorganic Systems Engineering, Department of Chemical Engineering, Faculty of Applied Sciences, Delft University of Technology Delft The Netherlands
| | - Elena Khramenkova
- Inorganic Systems Engineering, Department of Chemical Engineering, Faculty of Applied Sciences, Delft University of Technology Delft The Netherlands
| | - Evgeny A Pidko
- Inorganic Systems Engineering, Department of Chemical Engineering, Faculty of Applied Sciences, Delft University of Technology Delft The Netherlands
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69
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Lissaneddine A, Pons MN, Aziz F, Ouazzani N, Mandi L, Mousset E. A critical review on the electrosorption of organic compounds in aqueous effluent - Influencing factors and engineering considerations. ENVIRONMENTAL RESEARCH 2022; 204:112128. [PMID: 34600882 DOI: 10.1016/j.envres.2021.112128] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/10/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Despite being an old process from the end of the 19th century, electrosorption has attracted renewed attention in recent years because of its unique properties and advantages compared to other separation technologies and due to the concomitant development of new porous electrode materials. Electrosorption offer the advantage to separate the pollutants from wastewater with the possibility of selectively adsorbing and desorbing the targeted compounds. A comprehensive review of electrosorption is provided with particular attention given to the electrosorption of organic compounds, unlike existing capacitive deionization review papers that only focus on inorganic salts. The background and principle of electrosorption are first presented, while the influence of the main parameters (e.g., electrode materials, electrode potential, physico-chemistry of the electrolyte solutions, type of compounds, co-sorption effect, reactor design, etc.) is then detailed and the modeling and engineering aspects are discussed. Finally, the main output and future prospects about recovery studies and combination between electro-sorption/desorption and degradation processes are given. This review particularly highlights that carbon-based materials have been mostly employed (85% of studies) as porous electrode in organics electrosorption, while existing studies lack of electrode stability and durability tests in real conditions. These electrodes have been implemented in a fixed-bed reactor design most of the time (43% of studies) due to enhanced mass transport. Moreover, the electrode potential is a major criterion: it should be applied in the non-faradaic domain otherwise unwanted reactions can easily occur, especially the corrosion of carbon from 0.21 V/standard hydrogen electrode or the water oxidation/reduction. Furthermore, there is lack of studies performed with actual effluents and without addition of supporting electrolyte, which is crucial for testing the real efficiency of the process. The associated predictive model will be required by considering the matrix effect along with transport phenomena and physico-chemical characteristics of targeted organic compounds.
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Affiliation(s)
- Amina Lissaneddine
- Université de Lorraine, CNRS, LRGP, F-54000, Nancy, France; National Center for Research and Studies on Water and Energy (CNEREE), Cadi Ayyad University, B. 511, 40000, Marrakech, Morocco; Laboratory of Water, Biodiversity, and Climate Change, Faculty of Sciences Semlalia, Cadi Ayyad University, B.P. 2390, 40000, Marrakech, Morocco
| | | | - Faissal Aziz
- National Center for Research and Studies on Water and Energy (CNEREE), Cadi Ayyad University, B. 511, 40000, Marrakech, Morocco; Laboratory of Water, Biodiversity, and Climate Change, Faculty of Sciences Semlalia, Cadi Ayyad University, B.P. 2390, 40000, Marrakech, Morocco
| | - Naaila Ouazzani
- National Center for Research and Studies on Water and Energy (CNEREE), Cadi Ayyad University, B. 511, 40000, Marrakech, Morocco; Laboratory of Water, Biodiversity, and Climate Change, Faculty of Sciences Semlalia, Cadi Ayyad University, B.P. 2390, 40000, Marrakech, Morocco
| | - Laila Mandi
- National Center for Research and Studies on Water and Energy (CNEREE), Cadi Ayyad University, B. 511, 40000, Marrakech, Morocco; Laboratory of Water, Biodiversity, and Climate Change, Faculty of Sciences Semlalia, Cadi Ayyad University, B.P. 2390, 40000, Marrakech, Morocco
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70
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Zhu Q, Wallentine SK, Deng GH, Rebstock JA, Baker LR. The Solvation-Induced Onsager Reaction Field Rather than the Double-Layer Field Controls CO 2 Reduction on Gold. JACS AU 2022; 2:472-482. [PMID: 35252996 PMCID: PMC8889607 DOI: 10.1021/jacsau.1c00512] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Indexed: 06/14/2023]
Abstract
The selectivity and activity of the carbon dioxide reduction (CO2R) reaction are sensitive functions of the electrolyte cation. By measuring the vibrational Stark shift of in situ-generated CO on Au in the presence of alkali cations, we quantify the total electric field present at catalytic active sites and deconvolute this field into contributions from (1) the electrochemical Stern layer and (2) the Onsager (or solvation-induced) reaction field. Contrary to recent theoretical reports, the CO2R kinetics does not depend on the Stern field but instead is closely correlated with the strength of the Onsager reaction field. These results show that in the presence of adsorbed (bent) CO2, the Onsager field greatly exceeds the Stern field and is primarily responsible for CO2 activation. Additional measurements of the cation-dependent water spectra using vibrational sum frequency generation spectroscopy show that interfacial solvation strongly influences the CO2R activity. These combined results confirm that the cation-dependent interfacial water structure and its associated electric field must be explicitly considered for accurate understanding of CO2R reaction kinetics.
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71
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Kamat GA, Zamora Zeledón JA, Gunasooriya GTKK, Dull SM, Perryman JT, Nørskov JK, Stevens MB, Jaramillo TF. Acid anion electrolyte effects on platinum for oxygen and hydrogen electrocatalysis. Commun Chem 2022; 5:20. [PMID: 36697647 PMCID: PMC9814610 DOI: 10.1038/s42004-022-00635-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 01/20/2022] [Indexed: 01/28/2023] Open
Abstract
Platinum is an important material with applications in oxygen and hydrogen electrocatalysis. To better understand how its activity can be modulated through electrolyte effects in the double layer microenvironment, herein we investigate the effects of different acid anions on platinum for the oxygen reduction/evolution reaction (ORR/OER) and hydrogen evolution/oxidation reaction (HER/HOR) in pH 1 electrolytes. Experimentally, we see the ORR activity trend of HClO4 > HNO3 > H2SO4, and the OER activity trend of HClO4 [Formula: see text] HNO3 ∼ H2SO4. HER/HOR performance is similar across all three electrolytes. Notably, we demonstrate that ORR performance can be improved 4-fold in nitric acid compared to in sulfuric acid. Assessing the potential-dependent role of relative anion competitive adsorption with density functional theory, we calculate unfavorable adsorption on Pt(111) for all the anions at HER/HOR conditions while under ORR/OER conditions [Formula: see text] binds the weakest followed by [Formula: see text] and [Formula: see text]. Our combined experimental-theoretical work highlights the importance of understanding the role of anions across a large potential range and reveals nitrate-like electrolyte microenvironments as interesting possible sulfonate alternatives to mitigate the catalyst poisoning effects of polymer membranes/ionomers in electrochemical systems. These findings help inform rational design approaches to further enhance catalyst activity via microenvironment engineering.
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Affiliation(s)
- Gaurav Ashish Kamat
- grid.168010.e0000000419368956Department of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, CA 94305 USA ,grid.445003.60000 0001 0725 7771SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025 USA
| | - José A. Zamora Zeledón
- grid.168010.e0000000419368956Department of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, CA 94305 USA ,grid.445003.60000 0001 0725 7771SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025 USA
| | - G. T. Kasun Kalhara Gunasooriya
- grid.5170.30000 0001 2181 8870Catalysis Theory Center, Department of Physics, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Samuel M. Dull
- grid.168010.e0000000419368956Department of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, CA 94305 USA ,grid.445003.60000 0001 0725 7771SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025 USA
| | - Joseph T. Perryman
- grid.168010.e0000000419368956Department of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, CA 94305 USA ,grid.445003.60000 0001 0725 7771SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025 USA
| | - Jens K. Nørskov
- grid.5170.30000 0001 2181 8870Catalysis Theory Center, Department of Physics, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Michaela Burke Stevens
- grid.168010.e0000000419368956Department of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, CA 94305 USA ,grid.445003.60000 0001 0725 7771SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025 USA
| | - Thomas F. Jaramillo
- grid.168010.e0000000419368956Department of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, CA 94305 USA ,grid.445003.60000 0001 0725 7771SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025 USA
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72
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Li P, Liu Y, Chen S. Microscopic EDL Structures and Charge-Potential Relation on Stepped Platinum Surface: Insights from the Ab Initio Molecular Dynamics Simulations. J Chem Phys 2022; 156:104701. [DOI: 10.1063/5.0080104] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Peng Li
- College of Chemistry and Molecular Sciences, Wuhan University, China
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73
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Zhu Q, Murphy CJ, Baker LR. Opportunities for Electrocatalytic CO 2 Reduction Enabled by Surface Ligands. J Am Chem Soc 2022; 144:2829-2840. [PMID: 35137579 DOI: 10.1021/jacs.1c11500] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
To achieve high selectivity in enzyme catalysis, nature carefully controls both the catalyst active site and the pocket or environment that mediates access and the geometry of a reactant. Despite the many advantages of heterogeneous catalysis, active sites on a surface are rarely defined with atomic precision, making it difficult to control reaction selectivity with the molecular precision of homogeneous systems. In colloidal nanoparticle synthesis, structural control is accomplished using a surface ligand or capping layer that stabilizes a specific particle morphology and prevents nanoparticle aggregation. Usually, these surface ligands are considered detrimental for catalysis because they occupy otherwise active surface sites. However, a number of examples have shown that surface ligands can play a beneficial role in defining the catalytic environment and enhancing performance by a variety of mechanisms. This perspective summarizes recent advances and opportunities using surface ligands to enhance the performance of nanocatalysts for electrochemical CO2 reduction. Several mechanisms are discussed, including selective permeability, modulating interfacial solvation structure and electric fields, chemical activation, and templating active site selection. These examples inform strategies and point to emerging opportunities to design nanocatalysts toward molecular level control of electrochemical CO2 conversion.
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Affiliation(s)
- Quansong Zhu
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Catherine J Murphy
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - L Robert Baker
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
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74
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Das B, Chandra A. Ab Initio Molecular Dynamics Study of Aqueous Solutions of Magnesium and Calcium Nitrates: Hydration Shell Structure, Dynamics and Vibrational Echo Spectroscopy. J Phys Chem B 2022; 126:528-544. [PMID: 35001626 DOI: 10.1021/acs.jpcb.1c08545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ab initio molecular dynamics simulations are performed to study the hydration shell structure, dynamics, and vibrational echo spectroscopy of aqueous Mg(NO3)2 and Ca(NO3)2 solutions. The hydration shell structure is probed through calculations of various ion-ion and ion-water radial and spatial distribution functions. On the dynamical side, calculations have been made for the hydrogen bond dynamics of hydration shells and also residence dynamics and lifetimes of water in different solvation environments. Subsequently, we looked at the dynamics of frequency fluctuations of OD modes of heavy water in different hydration environments. Specifically, the temporal decay of spectral observables of two-dimensional infrared (2DIR) spectroscopy, three pulse echo peak shift (3PEPS) measurements and also of time correlations of frequency fluctuations are calculated to investigate the dynamics of vibrational spectral diffusion of water in different hydration environments in these solutions. The OD stretch frequencies of water molecules in the vicinity of both divalent cations are found to be red-shifted and also fluctuating at a slower rate than other water molecules present in the solutions. The Mg2+ ions are found to be strongly hydrated which can be linked to their lower tendency to form contact ion-pairs and essentially no water exchange between the cationic hydration shells and bulk during the time scale of the current simulations. The stronger hydration of Mg2+ ions make their hydration shells structurally and dynamically more rigid and make the dynamics of hydrogen bonds and vibrational spectral diffusion, as revealed through spectral observables of 2DIR and 3PEPS slower than that for the Ca2+ ions. The structural and spectral dynamics of water molecules outside the cationic solvation shells in the Mg(NO3)2 solution are also found to be relatively slower than that of the Ca(NO3)2 solution and pure water which show the effects of stronger electric fields of Mg2+ ions extending beyond their first hydration shells. Also, water molecules in the hydration shells of the NO3- ions are found to relax at a slower rate in the Mg(NO3)2 solution which manifests the effect countercations have on anionic hydration shells for divalent metal nitrate solutions.
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Affiliation(s)
- Banshi Das
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Amalendu Chandra
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
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75
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Shin SJ, Kim DH, Bae G, Ringe S, Choi H, Lim HK, Choi CH, Kim H. On the importance of the electric double layer structure in aqueous electrocatalysis. Nat Commun 2022; 13:174. [PMID: 35013347 PMCID: PMC8748683 DOI: 10.1038/s41467-021-27909-x] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 12/07/2021] [Indexed: 11/09/2022] Open
Abstract
To design electrochemical interfaces for efficient electric-chemical energy interconversion, it is critical to reveal the electric double layer (EDL) structure and relate it with electrochemical activity; nonetheless, this has been a long-standing challenge. Of particular, no molecular-level theories have fully explained the characteristic two peaks arising in the potential-dependence of the EDL capacitance, which is sensitively dependent on the EDL structure. We herein demonstrate that our first-principles-based molecular simulation reproduces the experimental capacitance peaks. The origin of two peaks emerging at anodic and cathodic potentials is unveiled to be an electrosorption of ions and a structural phase transition, respectively. We further find a cation complexation gradually modifies the EDL structure and the field strength, which linearly scales the carbon dioxide reduction activity. This study deciphers the complex structural response of the EDL and highlights its catalytic importance, which bridges the mechanistic gap between the EDL structure and electrocatalysis.
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Affiliation(s)
- Seung-Jae Shin
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Dong Hyun Kim
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Geunsu Bae
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Stefan Ringe
- Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology, Daegu, 42988, Republic of Korea.,Energy Science and Engineering Research Center, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
| | - Hansol Choi
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Hyung-Kyu Lim
- Division of Chemical Engineering and Bioengineering, Kangwon National University, Chuncheon, Gangwon-do, 24341, Republic of Korea
| | - Chang Hyuck Choi
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea.
| | - Hyungjun Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea.
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76
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Yuan T, Wang T, Zhang G, Deng W, Cheng D, Gao H, Zhao J, Yu J, Zhang P, Gong J. The effect of specific adsorption of halide ions on electrochemical CO 2 reduction. Chem Sci 2022; 13:8117-8123. [PMID: 35919439 PMCID: PMC9278460 DOI: 10.1039/d2sc02689a] [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: 05/14/2022] [Accepted: 05/27/2022] [Indexed: 11/21/2022] Open
Abstract
In the electrochemical CO2 reduction reaction (CO2RR), halide ions could impose a significant effect on multi-carbon (C2+) product production for Cu-based catalysts by a combined contribution from various mechanisms. However, the nature of specific adsorption of halide ions remains elusive due to the difficulty in decoupling different effects. This paper describes a facile method to actively immobilize the morphology of Cu-based catalysts during the CO2RR, which makes it possible to reveal the fundamental mechanism of specific adsorption of halide ions. A stable morphology is obtained by pre-reduction in aqueous KX (X = Cl, Br, I) electrolytes followed by conducting the CO2RR using non-buffered and non-specifically adsorbed K2SO4 as the supporting electrolyte, by which the change of local pH and cation concentration is also maintained during the CO2RR. In situ spectroscopy revealed that the specific adsorption of halide ions enhances the adsorption of *CO intermediates, which enables a high selectivity of 84.5% for C2+ products in 1.0 M KI. Reconstruction of catalyst morphology induced by halide ions over of Cu-based catalysts during CO2 electroreduction is suppressed using K2SO4 as supporting electrolyte. Adsorption of halide ions is an enabling factor to enhance CO2 electroreduction.![]()
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Affiliation(s)
- Tenghui Yuan
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science & Engineering, Tianjin 300072, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Tuo Wang
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science & Engineering, Tianjin 300072, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Gong Zhang
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science & Engineering, Tianjin 300072, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Wanyu Deng
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science & Engineering, Tianjin 300072, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Dongfang Cheng
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science & Engineering, Tianjin 300072, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Hui Gao
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science & Engineering, Tianjin 300072, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Jing Zhao
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science & Engineering, Tianjin 300072, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Jia Yu
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science & Engineering, Tianjin 300072, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Peng Zhang
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science & Engineering, Tianjin 300072, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Jinlong Gong
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science & Engineering, Tianjin 300072, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
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77
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Monteiro MCO, Dattila F, López N, Koper MTM. The Role of Cation Acidity on the Competition between Hydrogen Evolution and CO 2 Reduction on Gold Electrodes. J Am Chem Soc 2021; 144:1589-1602. [PMID: 34962791 PMCID: PMC8815072 DOI: 10.1021/jacs.1c10171] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
![]()
CO2 electroreduction
(CO2RR) is a sustainable
alternative for producing fuels and chemicals. Metal cations in the
electrolyte have a strong impact on the reaction, but mainly alkali
species have been studied in detail. In this work, we elucidate how
multivalent cations (Li+, Cs+, Be2+, Mg2+, Ca2+, Ba2+, Al3+, Nd3+, and Ce3+) affect CO2RR and
the competing hydrogen evolution by studying these reactions on polycrystalline
gold at pH = 3. We observe that cations have no effect on proton reduction
at low overpotentials, but at alkaline surface pH acidic cations undergo
hydrolysis, generating a second proton reduction regime. The activity
and onset for the water reduction reaction correlate with cation acidity,
with weakly hydrated trivalent species leading to the highest activity.
Acidic cations only favor CO2RR at low overpotentials and
in acidic media. At high overpotentials, the activity for CO increases
in the order Ca2+ < Li+ < Ba2+ < Cs+. To favor this reaction there must be an interplay
between cation stabilization of the *CO2– intermediate, cation accumulation at the outer Helmholtz plane (OHP),
and activity for water reduction. Ab initio molecular
dynamics simulations with explicit electric field show that nonacidic
cations show lower repulsion at the interface, accumulating more at
the OHP, thus triggering local promoting effects. Water dissociation
kinetics is increasingly promoted by strongly acidic cations (Nd3+, Al3+), in agreement with experimental evidence.
Cs+, Ba2+, and Nd3+ coordinate to
adsorbed CO2 steadily; thus they enable *CO2– stabilization and barrierless protonation to
COOH and further reduction products.
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Affiliation(s)
- Mariana C O Monteiro
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Federico Dattila
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Avenida Paısos Catalans 16, 43007 Tarragona, Spain
| | - Núria López
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Avenida Paısos Catalans 16, 43007 Tarragona, Spain
| | - Marc T M Koper
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
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78
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Lee J, Lim JS, Yim G, Jang H, Joo SH, Sa YJ. Unveiling the Cationic Promotion Effect of H 2O 2 Electrosynthesis Activity of O-Doped Carbons. ACS APPLIED MATERIALS & INTERFACES 2021; 13:59904-59914. [PMID: 34882382 DOI: 10.1021/acsami.1c17727] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
H2O2 electrosynthesis is an emerging clean chemical technology, whose efficiency critically depends on the activity and selectivity of electrocatalysts for two-electron oxygen reduction reaction (2e- ORR). Here, we demonstrate that 2e- ORR activity of oxygen-doped carbons, which have been one of the most promising catalysts for this reaction, can be substantially influenced by the types and concentrations of cations in electrolytes. Heat-treated carbon comprising active oxygen functional groups exhibits cation-dependent 2e- ORR activity trends in alkaline media, following the order Cs+ > K+ > Li+. Importantly, an electrolyte with a high cation concentration (0.1 M KOH + 0.5 M KCl) afforded the highest 2e- ORR mass activity (250 ± 30 A gcat-1 at 0.70 V vs reversible hydrogen electrode) ever reported. We have established that the cation promotion effect correlates with cation-dependent electron-transfer kinetics, which regulates the rate-determining first electron transfer to O2.
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Affiliation(s)
- Juyeon Lee
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea
| | - June Sung Lim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Gyeonghye Yim
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Hongje Jang
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Sang Hoon Joo
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Young Jin Sa
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea
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79
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Govindarajan N, Kastlunger G, Heenen HH, Chan K. Improving the intrinsic activity of electrocatalysts for sustainable energy conversion: where are we and where can we go? Chem Sci 2021; 13:14-26. [PMID: 35059146 PMCID: PMC8694373 DOI: 10.1039/d1sc04775b] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 11/14/2021] [Indexed: 12/19/2022] Open
Abstract
As we are in the midst of a climate crisis, there is an urgent need to transition to the sustainable production of fuels and chemicals. A promising strategy towards this transition is to use renewable energy for the electrochemical conversion of abundant molecules present in the earth's atmosphere such as H2O, O2, N2 and CO2, to synthetic fuels and chemicals. A cornerstone to this strategy is the development of earth abundant electrocatalysts with high intrinsic activity towards the desired products. In this perspective, we discuss the importance and challenges involved in the estimation of intrinsic activity both from the experimental and theoretical front. Through a thorough analysis of published data, we find that only modest improvements in intrinsic activity of electrocatalysts have been achieved in the past two decades which necessitates the need for a paradigm shift in electrocatalyst design. To this end, we highlight opportunities offered by tuning three components of the electrochemical environment: cations, buffering anions and the electrolyte pH. These components can significantly alter catalytic activity as demonstrated using several examples, and bring us a step closer towards complete system level optimization of electrochemical routes to sustainable energy conversion.
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Affiliation(s)
- Nitish Govindarajan
- Catalysis Theory Center, Department of Physics, Technical University of Denmark (DTU) Fysikvej 311 2800 Kgs. Lyngby Denmark
| | - Georg Kastlunger
- Catalysis Theory Center, Department of Physics, Technical University of Denmark (DTU) Fysikvej 311 2800 Kgs. Lyngby Denmark
| | - Hendrik H Heenen
- Catalysis Theory Center, Department of Physics, Technical University of Denmark (DTU) Fysikvej 311 2800 Kgs. Lyngby Denmark .,Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4-6 D-14195 Berlin Germany
| | - Karen Chan
- Catalysis Theory Center, Department of Physics, Technical University of Denmark (DTU) Fysikvej 311 2800 Kgs. Lyngby Denmark
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80
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Paolucci F, Crisá F, De Simoni G, Bours L, Puglia C, Strambini E, Roddaro S, Giazotto F. Electrostatic Field-Driven Supercurrent Suppression in Ionic-Gated Metallic Superconducting Nanotransistors. NANO LETTERS 2021; 21:10309-10314. [PMID: 34851117 DOI: 10.1021/acs.nanolett.1c03481] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Recent experiments have shown the possibility of tuning the transport properties of metallic nanosized superconductors through a gate voltage. These results renewed the longstanding debate on the interaction between electrostatic fields and superconductivity. Indeed, different works suggested competing mechanisms as the cause of the effect: an unconventional electric field-effect or quasiparticle injection. Here, we provide conclusive evidence for the electrostatic-field-driven control of the supercurrent in metallic nanosized superconductors, by realizing ionic-gated superconducting field-effect nanotransistors (ISFETs) where electron injection is impossible. Our Nb ISFETs show giant suppression of the superconducting critical current of up to ∼45%. Moreover, the bipolar supercurrent suppression observed in different ISFETs, together with invariant critical temperature and normal-state resistance, also excludes conventional charge accumulation/depletion. Therefore, the microscopic explanation of this effect calls upon a novel theory able to describe the nontrivial interaction of static electric fields with conventional superconductivity.
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Affiliation(s)
- Federico Paolucci
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza San Silvestro 12, I-56127 Pisa, Italy
| | - Francesco Crisá
- Department of Physics "E. Fermi", Universitá di Pisa, Largo Pontecorvo 3, I-56127 Pisa, Italy
| | - Giorgio De Simoni
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza San Silvestro 12, I-56127 Pisa, Italy
| | - Lennart Bours
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza San Silvestro 12, I-56127 Pisa, Italy
| | - Claudio Puglia
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza San Silvestro 12, I-56127 Pisa, Italy
| | - Elia Strambini
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza San Silvestro 12, I-56127 Pisa, Italy
| | - Stefano Roddaro
- Department of Physics "E. Fermi", Universitá di Pisa, Largo Pontecorvo 3, I-56127 Pisa, Italy
| | - Francesco Giazotto
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza San Silvestro 12, I-56127 Pisa, Italy
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81
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Ringe S, Hörmann NG, Oberhofer H, Reuter K. Implicit Solvation Methods for Catalysis at Electrified Interfaces. Chem Rev 2021; 122:10777-10820. [PMID: 34928131 PMCID: PMC9227731 DOI: 10.1021/acs.chemrev.1c00675] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
![]()
Implicit solvation
is an effective, highly coarse-grained approach
in atomic-scale simulations to account for a surrounding liquid electrolyte
on the level of a continuous polarizable medium. Originating in molecular
chemistry with finite solutes, implicit solvation techniques are now
increasingly used in the context of first-principles modeling of electrochemistry
and electrocatalysis at extended (often metallic) electrodes. The
prevalent ansatz to model the latter electrodes and the reactive surface
chemistry at them through slabs in periodic boundary condition supercells
brings its specific challenges. Foremost this concerns the difficulty
of describing the entire double layer forming at the electrified solid–liquid
interface (SLI) within supercell sizes tractable by commonly employed
density functional theory (DFT). We review liquid solvation methodology
from this specific application angle, highlighting in particular its
use in the widespread ab initio thermodynamics approach
to surface catalysis. Notably, implicit solvation can be employed
to mimic a polarization of the electrode’s electronic density
under the applied potential and the concomitant capacitive charging
of the entire double layer beyond the limitations of the employed
DFT supercell. Most critical for continuing advances of this effective
methodology for the SLI context is the lack of pertinent (experimental
or high-level theoretical) reference data needed for parametrization.
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Affiliation(s)
- Stefan Ringe
- Department of Energy Science and Engineering, Daegu Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea.,Energy Science & Engineering Research Center, Daegu Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Nicolas G Hörmann
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany.,Chair for Theoretical Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstraße 4, D-85747 Garching, Germany
| | - Harald Oberhofer
- Chair for Theoretical Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstraße 4, D-85747 Garching, Germany.,Chair for Theoretical Physics VII and Bavarian Center for Battery Technology (BayBatt), University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Karsten Reuter
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
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82
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Deng B, Huang M, Zhao X, Mou S, Dong F. Interfacial Electrolyte Effects on Electrocatalytic CO 2 Reduction. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03501] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Bangwei Deng
- Research Center for Environmental Science and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, People’s Republic of China
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, People’s Republic of China
| | - Ming Huang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, 637457, Singapore
| | - Xiaoli Zhao
- Research Center for Environmental Science and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, People’s Republic of China
| | - Shiyong Mou
- Research Center for Environmental Science and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, People’s Republic of China
| | - Fan Dong
- Research Center for Environmental Science and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, People’s Republic of China
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, People’s Republic of China
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83
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Pitawela N, Shaw SK. Imidazolium Triflate Ionic Liquids' Capacitance-Potential Relationships and Transport Properties Affected by Cation Chain Lengths. ACS MEASUREMENT SCIENCE AU 2021; 1:117-130. [PMID: 36785553 PMCID: PMC9885949 DOI: 10.1021/acsmeasuresciau.1c00015] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
In this paper we report the effects of five imidazolium cations with varying alkyl chain lengths to study the effects of cation size on capacitance versus voltage behavior. The cations include ethyl-, butyl-, hexyl-, octyl-, and decyl-3-methylimidazolium, all paired with a triflate anion. We analyze the capacitance with respect to the cation alkyl chain length qualitatively and quantitatively by analyzing changes in the capacitance-potential curvature shape and magnitude across several standard scanning protocols and electrochemical techniques. Further, three transport properties (viscosity, diffusion coefficient, and electrical conductivity) are experimentally determined and integrated into the outcomes. Ultimately, we find higher viscosities, lower diffusion coefficients, and lower electrical conductivities when the alkyl chain length is increased. Also, capacitance values increase with cation size, except 1-octyl-3-methylimidazolium, which does not follow an otherwise linear trend. This capacitive increase is most pronounced when sweeping the potential in the cathodic direction. These findings challenge the conventional hypothesis that increasing the length of the alkyl chain of imidazolium cations diminishes the capacitance and ionic liquid performance in charge storage.
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84
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Monteiro MCO, Goyal A, Moerland P, Koper MTM. Understanding Cation Trends for Hydrogen Evolution on Platinum and Gold Electrodes in Alkaline Media. ACS Catal 2021; 11:14328-14335. [PMID: 34888121 PMCID: PMC8650008 DOI: 10.1021/acscatal.1c04268] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 11/02/2021] [Indexed: 12/03/2022]
Abstract
![]()
In this work, we
study how the cation identity and concentration
alter the kinetics of the hydrogen evolution reaction (HER) on platinum
and gold electrodes. A previous work suggested an inverted activity
trend as a function of alkali metal cation when comparing the performance
of platinum and gold catalysts in alkaline media. We show that weakly
hydrated cations (K+) favor HER on gold only at low overpotentials
(or lower alkalinity), whereas in more alkaline pH (or high overpotentials),
a higher activity is observed using electrolytes containing strongly
hydrated cations (Li+). We find a similar trend for platinum;
however, the inhibition of HER by weakly hydrated cations on platinum
is observed already at lower alkalinity and lower cation concentrations,
suggesting that platinum interacts more strongly with metal cations
than gold. We propose that weakly hydrated cations stabilize the transition
state of the water dissociation step more favorably due to their higher
near-surface concentration in comparison to a strongly hydrated cation
such as Li+. However, at high pH and consequently higher
near-surface cation concentrations, the accumulation of these species
at the outer Helmholtz plane inhibits HER. This is especially pronounced
on platinum, where a change in the rate-determining step is observed
at pH 13 when using a Li+- or K+-containing
electrolyte.
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Affiliation(s)
- Mariana C. O. Monteiro
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Akansha Goyal
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Pricilla Moerland
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Marc T. M. Koper
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
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85
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Boyd S, Ganeshan K, Tsai WY, Wu T, Saeed S, Jiang DE, Balke N, van Duin ACT, Augustyn V. Effects of interlayer confinement and hydration on capacitive charge storage in birnessite. NATURE MATERIALS 2021; 20:1689-1694. [PMID: 34341525 DOI: 10.1038/s41563-021-01066-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 06/25/2021] [Indexed: 06/13/2023]
Abstract
Nanostructured birnessite exhibits high specific capacitance and nearly ideal capacitive behaviour in aqueous electrolytes, rendering it an important electrode material for low-cost, high-power energy storage devices. The mechanism of electrochemical capacitance in birnessite has been described as both Faradaic (involving redox) and non-Faradaic (involving only electrostatic interactions). To clarify the capacitive mechanism, we characterized birnessite's response to applied potential using ex situ X-ray diffraction, electrochemical quartz crystal microbalance, in situ Raman spectroscopy and operando atomic force microscope dilatometry to provide a holistic understanding of its structural, gravimetric and mechanical responses. These observations are supported by atomic-scale simulations using density functional theory for the cation-intercalated structure of birnessite, ReaxFF reactive force field-based molecular dynamics and ReaxFF-based grand canonical Monte Carlo simulations on the dynamics at the birnessite-water-electrolyte interface. We show that capacitive charge storage in birnessite is governed by interlayer cation intercalation. We conclude that the intercalation appears capacitive due to the presence of nanoconfined interlayer structural water, which mediates the interaction between the intercalated cation and the birnessite host and leads to minimal structural changes.
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Affiliation(s)
- Shelby Boyd
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC, USA
| | - Karthik Ganeshan
- Department of Mechanical Engineering, Pennsylvania State University, University Park, PA, USA
| | - Wan-Yu Tsai
- Chemical Science Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Tao Wu
- Department of Chemistry, University of California, Riverside, CA, USA
| | - Saeed Saeed
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC, USA
| | - De-En Jiang
- Department of Chemistry, University of California, Riverside, CA, USA
| | - Nina Balke
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Adri C T van Duin
- Department of Mechanical Engineering, Pennsylvania State University, University Park, PA, USA
| | - Veronica Augustyn
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC, USA.
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86
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Potts DS, Bregante DT, Adams JS, Torres C, Flaherty DW. Influence of solvent structure and hydrogen bonding on catalysis at solid-liquid interfaces. Chem Soc Rev 2021; 50:12308-12337. [PMID: 34569580 DOI: 10.1039/d1cs00539a] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Solvent molecules interact with reactive species and alter the rates and selectivities of catalytic reactions by orders of magnitude. Specifically, solvent molecules can modify the free energies of liquid phase and surface species via solvation, participating directly as a reactant or co-catalyst, or competitively binding to active sites. These effects carry consequences for reactions relevant for the conversion of renewable or recyclable feedstocks, the development of distributed chemical manufacturing, and the utilization of renewable energy to drive chemical reactions. First, we describe the quantitative impact of these effects on steady-state catalytic turnover rates through a rate expression derived for a generic catalytic reaction (A → B), which illustrates the functional dependence of rates on each category of solvent interaction. Second, we connect these concepts to recent investigations of the effects of solvents on catalysis to show how interactions between solvent and reactant molecules at solid-liquid interfaces influence catalytic reactions. This discussion demonstrates that the design of effective liquid phase catalytic processes benefits from a clear understanding of these intermolecular interactions and their implications for rates and selectivities.
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Affiliation(s)
- David S Potts
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
| | - Daniel T Bregante
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
| | - Jason S Adams
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
| | - Chris Torres
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
| | - David W Flaherty
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
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87
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Saeed S, Fortunato J, Ganeshan K, Duin ACT, Augustyn V. Decoupling Proton and Cation Contributions to Capacitive Charge Storage in Birnessite in Aqueous Electrolytes. ChemElectroChem 2021. [DOI: 10.1002/celc.202100992] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Saeed Saeed
- Dept. of Materials Science & Engineering North Carolina State University Raleigh NC 27695 USA
| | - Jenelle Fortunato
- Dept. of Materials Science & Engineering North Carolina State University Raleigh NC 27695 USA
| | - Karthik Ganeshan
- Department of Mechanical Engineering Pennsylvania State University University Park PA 16803 USA
| | - Adri C. T. Duin
- Department of Mechanical Engineering Pennsylvania State University University Park PA 16803 USA
| | - Veronica Augustyn
- Dept. of Materials Science & Engineering North Carolina State University Raleigh NC 27695 USA
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88
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Huang J, Li M, Eslamibidgoli MJ, Eikerling M, Groß A. Cation Overcrowding Effect on the Oxygen Evolution Reaction. JACS AU 2021; 1:1752-1765. [PMID: 34723278 PMCID: PMC8549051 DOI: 10.1021/jacsau.1c00315] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Indexed: 05/05/2023]
Abstract
The influence of electrolyte ions on the catalytic activity of electrode/electrolyte interfaces is a controversial topic for many electrocatalytic reactions. Herein, we focus on an effect that is usually neglected, namely, how the local reaction conditions are shaped by nonspecifically adsorbed cations. We scrutinize the oxygen evolution reaction (OER) at nickel (oxy)hydroxide catalysts, using a physicochemical model that integrates density functional theory calculations, a microkinetic submodel, and a mean-field submodel of the electric double layer. The aptness of the model is verified by comparison with experiments. The robustness of model-based insights against uncertainties and variations in model parameters is examined, with a sensitivity analysis using Monto Carlo simulations. We interpret the decrease in OER activity with the increasing effective size of electrolyte cations as a consequence of cation overcrowding near the negatively charged electrode surface. The same reasoning could explain why the OER activity increases with solution pH on the RHE scale and why the OER activity decreases in the presence of bivalent cations. Overall, this work stresses the importance of correctly accounting for local reaction conditions in electrocatalytic reactions to obtain an accurate picture of factors that determine the electrode activity.
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Affiliation(s)
- Jun Huang
- Institute
of Theoretical Chemistry, Ulm University, 89069 Ulm, Germany
- Institute
of Energy and Climate Research, IEK-13: Theory and Computation of
Energy Materials, Forschungszentrum Jülich
GmbH, 52425 Jülich, Germany
| | - Mengru Li
- Institute
of Theoretical Chemistry, Ulm University, 89069 Ulm, Germany
| | - Mohammad J. Eslamibidgoli
- Institute
of Energy and Climate Research, IEK-13: Theory and Computation of
Energy Materials, Forschungszentrum Jülich
GmbH, 52425 Jülich, Germany
| | - Michael Eikerling
- Institute
of Energy and Climate Research, IEK-13: Theory and Computation of
Energy Materials, Forschungszentrum Jülich
GmbH, 52425 Jülich, Germany
- Jülich
Aachen Research Alliance: JARA-Energy, 52425 Jülich, Germany
| | - Axel Groß
- Institute
of Theoretical Chemistry, Ulm University, 89069 Ulm, Germany
- Helmholtz
Institute Ulm (HIU) Electrochemical Energy Storage, 89069 Ulm, Germany
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89
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Briega-Martos V, Sarabia FJ, Climent V, Herrero E, Feliu JM. Cation Effects on Interfacial Water Structure and Hydrogen Peroxide Reduction on Pt(111). ACS MEASUREMENT SCIENCE AU 2021; 1:48-55. [PMID: 36785745 PMCID: PMC9836069 DOI: 10.1021/acsmeasuresciau.1c00004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The interface between the Pt(111) surface and several MeF/HClO4 (Me+ = Li+, Na+, or Cs+) aqueous electrolytes is investigated by means of cyclic voltammetry and laser-induced temperature jump experiments. Results point out that the effect of the electrolyte on the interfacial water structure is different depending on the nature of the metal alkali cation, with the values of the potential of maximum entropy (pme) following the order pme (Li+) < pme (Na+) < pme (Cs+). In addition, the hydrogen peroxide reduction reaction is studied under these conditions. This reaction is inhibited at low potentials as a consequence of the build up of negative charges on the electrode surface. The potential where this inhibition takes place (E inhibition) follows the same trend as the pme. These results evidence that the activity of an electrocatalytic reaction can depend to great extent on the structure of the interfacial water adlayer and that the latter can be modulated by the nature of the alkali metal cation.
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90
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Wang M, Feng Z. Interfacial processes in electrochemical energy systems. Chem Commun (Camb) 2021; 57:10453-10468. [PMID: 34494049 DOI: 10.1039/d1cc01703a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Electrochemical energy systems such as batteries, water electrolyzers, and fuel cells are considered as promising and sustainable energy storage and conversion devices due to their high energy densities and zero or negative carbon dioxide emission. However, their widespread applications are hindered by many technical challenges, such as the low efficiency and poor long-term cyclability, which are mostly affected by the changes at the reactant/electrode/electrolyte interfaces. These interfacial processes involve ion/electron transfer, molecular/ion adsorption/desorption, and complex interface restructuring, which lead to irreversible modifications to the electrodes and the electrolyte. The understanding of these interfacial processes is thus crucial to provide strategies for solving those problems. In this review, we will discuss different interfacial processes at three representative interfaces, namely, solid-gas, solid-liquid, and solid-solid, in various electrochemical energy systems, and how they could influence the performance of electrochemical systems.
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Affiliation(s)
- Maoyu Wang
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, Oregon, USA.
| | - Zhenxing Feng
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, Oregon, USA.
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91
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Bhargava SS, Cofell ER, Chumble P, Azmoodeh D, Someshwar S, Kenis PJ. Exploring multivalent cations-based electrolytes for CO2 electroreduction. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139055] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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92
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Lang C, Li J, Yang KR, Wang Y, He D, Thorne JE, Croslow S, Dong Q, Zhao Y, Prostko G, Brudvig GW, Batista VS, Waegele MM, Wang D. Observation of a potential-dependent switch of water-oxidation mechanism on Co-oxide-based catalysts. Chem 2021. [DOI: 10.1016/j.chempr.2021.03.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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93
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Srivastava P, Gunawan C, Soeriyadi A, Amal R, Hoehn K, Marquis C. In vitro coronal protein signatures and biological impact of silver nanoparticles synthesized with different natural polymers as capping agents. NANOSCALE ADVANCES 2021; 3:4424-4439. [PMID: 36133466 PMCID: PMC9418127 DOI: 10.1039/d0na01013h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 05/16/2021] [Indexed: 06/15/2023]
Abstract
Biopolymer-capped particles, sodium alginate-, gelatin- and reconstituted silk fibroin-capped nanosilver (AgNPs), were synthesized with an intention to study, simultaneously, their in vitro and in vivo haemocompatibility, one of the major safety factors in biomedical applications. Solid state characterization showed formation of spherical nanoparticles with 5 to 30 nm primary sizes (transmission electron microscopy) and X-ray photoelectron spectroscopy analysis of particles confirmed silver bonding with the biopolymer moieties. The degree of aggregation of the biopolymer-capped AgNPs in the synthesis medium (ultrapure water) is relatively low, with comparable hydrodynamic size with those of the control citrate-stabilized NPs, and remained relatively unchanged even after 6 weeks. The polymer-capped nanoparticles showed different degrees of aggregation in biologically relevant media - PBS (pH 7.4) and 2% human blood plasma - with citrate- (control) and alginate-capped particles showing the highest aggregation, while gelatin- and silk fibroin-capped particles revealed better stability and less aggregation in these media. In vitro cytotoxicity studies revealed that the polymer-capped particles exhibited both concentration and (hydrodynamic) size-dependent haemolytic activity, the extent of which was higher (up to 100% in some cases) in collected whole blood samples of healthy human volunteers when compared to that in the washed erythrocytes. This difference is thought to result from the detected protein corona formation on the nanoparticle surface in the whole blood system, which was associated with reduced particle aggregation, causing more severe cytotoxic effects. At the tested particle concentration range in vitro, we observed a negligible haemolysis effect in vivo (Balb/c mice). Polymer-capped particles did accumulate in organs, with the highest levels detected in the liver (up to 422 μg per g tissue), yet no adverse behavioural effects were observed in the mice during the duration of the nanoparticle exposure.
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Affiliation(s)
- Priyanka Srivastava
- School of Biotechnology and Biomolecular Sciences, University of New South Wales Sydney NSW 2052 Australia
- School of Biosciences and Technology, Vellore Institute of Technology Vellore Tamil Nadu 632014 India
| | - Cindy Gunawan
- i3 Institute, University of Technology Sydney NSW 2006 Australia
| | - Alexander Soeriyadi
- School of Chemistry, University of New South Wales Sydney NSW 2052 Australia
- Mochtar Riady Institute for Nanotechnology Tangerang 15810 Indonesia
| | - Rose Amal
- School of Chemical Engineering, University of New South Wales Sydney NSW 2052 Australia
| | - Kyle Hoehn
- School of Biotechnology and Biomolecular Sciences, University of New South Wales Sydney NSW 2052 Australia
| | - Christopher Marquis
- School of Biotechnology and Biomolecular Sciences, University of New South Wales Sydney NSW 2052 Australia
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94
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Absence of CO2 electroreduction on copper, gold and silver electrodes without metal cations in solution. Nat Catal 2021. [DOI: 10.1038/s41929-021-00655-5] [Citation(s) in RCA: 118] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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95
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Bhattacharyya D, Videla PE, Cattaneo M, Batista VS, Lian T, Kubiak CP. Vibrational Stark shift spectroscopy of catalysts under the influence of electric fields at electrode-solution interfaces. Chem Sci 2021; 12:10131-10149. [PMID: 34377403 PMCID: PMC8336477 DOI: 10.1039/d1sc01876k] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 07/13/2021] [Indexed: 11/24/2022] Open
Abstract
External control of chemical processes is a subject of widespread interest in chemical research, including control of electrocatalytic processes with significant promise in energy research. The electrochemical double-layer is the nanoscale region next to the electrode/electrolyte interface where chemical reactions typically occur. Understanding the effects of electric fields within the electrochemical double layer requires a combination of synthesis, electrochemistry, spectroscopy, and theory. In particular, vibrational sum frequency generation (VSFG) spectroscopy is a powerful technique to probe the response of molecular catalysts at the electrode interface under bias. Fundamental understanding can be obtained via synthetic tuning of the adsorbed molecular catalysts on the electrode surface and by combining experimental VSFG data with theoretical modelling of the Stark shift response. The resulting insights at the molecular level are particularly valuable for the development of new methodologies to control and characterize catalysts confined to electrode surfaces. This Perspective article is focused on how systematic modifications of molecules anchored to surfaces report information concerning the geometric, energetic, and electronic parameters of catalysts under bias attached to electrode surfaces. Heterogeneous electrocatalysis: characterization of interfacial electric field within the electrochemical double layer.![]()
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Affiliation(s)
- Dhritiman Bhattacharyya
- Department of Chemistry, Emory University 1515 Dickey Drive Northeast Atlanta Georgia 30322 USA
| | - Pablo E Videla
- Department of Chemistry and Energy Sciences Institute, Yale University 225 Prospect Street New Haven Connecticut 06520 USA
| | - Mauricio Cattaneo
- INQUINOA-UNT-CONICET, Facultad de Bioquímica, Química y Farmacia, Instituto de Química Física, Universidad Nacional de Tucumán Ayacucho 471 (4000) San Miguel de Tucumán Argentina
| | - Victor S Batista
- Department of Chemistry and Energy Sciences Institute, Yale University 225 Prospect Street New Haven Connecticut 06520 USA
| | - Tianquan Lian
- Department of Chemistry, Emory University 1515 Dickey Drive Northeast Atlanta Georgia 30322 USA
| | - Clifford P Kubiak
- Department of Chemistry and Biochemistry, University of California, San Diego 9500 Gilman Drive, MC 0358 La Jolla California 92093 USA
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96
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Buckley AK, Cheng T, Oh MH, Su GM, Garrison J, Utan SW, Zhu C, Toste FD, Goddard WA, Toma FM. Approaching 100% Selectivity at Low Potential on Ag for Electrochemical CO 2 Reduction to CO Using a Surface Additive. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00830] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Aya K. Buckley
- Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Tao Cheng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, 199 Renai Road, Suzhou, Jiangsu 215123, PR China
- Joint Center for Artificial Photosynthesis and Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States
| | - Myoung Hwan Oh
- Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
- Department of Energy Technology, Korea Institute of Energy Technology, Naju 58322, Republic of Korea
| | - Gregory M. Su
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Jennifer Garrison
- Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Sean W. Utan
- Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Chenhui Zhu
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
| | - F. Dean Toste
- Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - William A. Goddard
- Joint Center for Artificial Photosynthesis and Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States
| | - Francesca M. Toma
- Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
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97
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Barry E, Burns R, Chen W, De Hoe GX, De Oca JMM, de Pablo JJ, Dombrowski J, Elam JW, Felts AM, Galli G, Hack J, He Q, He X, Hoenig E, Iscen A, Kash B, Kung HH, Lewis NHC, Liu C, Ma X, Mane A, Martinson ABF, Mulfort KL, Murphy J, Mølhave K, Nealey P, Qiao Y, Rozyyev V, Schatz GC, Sibener SJ, Talapin D, Tiede DM, Tirrell MV, Tokmakoff A, Voth GA, Wang Z, Ye Z, Yesibolati M, Zaluzec NJ, Darling SB. Advanced Materials for Energy-Water Systems: The Central Role of Water/Solid Interfaces in Adsorption, Reactivity, and Transport. Chem Rev 2021; 121:9450-9501. [PMID: 34213328 DOI: 10.1021/acs.chemrev.1c00069] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The structure, chemistry, and charge of interfaces between materials and aqueous fluids play a central role in determining properties and performance of numerous water systems. Sensors, membranes, sorbents, and heterogeneous catalysts almost uniformly rely on specific interactions between their surfaces and components dissolved or suspended in the water-and often the water molecules themselves-to detect and mitigate contaminants. Deleterious processes in these systems such as fouling, scaling (inorganic deposits), and corrosion are also governed by interfacial phenomena. Despite the importance of these interfaces, much remains to be learned about their multiscale interactions. Developing a deeper understanding of the molecular- and mesoscale phenomena at water/solid interfaces will be essential to driving innovation to address grand challenges in supplying sufficient fit-for-purpose water in the future. In this Review, we examine the current state of knowledge surrounding adsorption, reactivity, and transport in several key classes of water/solid interfaces, drawing on a synergistic combination of theory, simulation, and experiments, and provide an outlook for prioritizing strategic research directions.
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Affiliation(s)
- Edward Barry
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Applied Materials Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Center for Molecular Engineering, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States
| | - Raelyn Burns
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Applied Materials Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States
| | - Wei Chen
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Center for Molecular Engineering, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - Guilhem X De Hoe
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Center for Molecular Engineering, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - Joan Manuel Montes De Oca
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - Juan J de Pablo
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - James Dombrowski
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208 United States
| | - Jeffrey W Elam
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Applied Materials Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Center for Molecular Engineering, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States
| | - Alanna M Felts
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208 United States
| | - Giulia Galli
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - John Hack
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Department of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - Qiming He
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Center for Molecular Engineering, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - Xiang He
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States
| | - Eli Hoenig
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - Aysenur Iscen
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208 United States
| | - Benjamin Kash
- Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - Harold H Kung
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208 United States
| | - Nicholas H C Lewis
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Department of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - Chong Liu
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - Xinyou Ma
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Department of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - Anil Mane
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Applied Materials Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States
| | - Alex B F Martinson
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Center for Molecular Engineering, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States
| | - Karen L Mulfort
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States
| | - Julia Murphy
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Department of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - Kristian Mølhave
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Technical University of Denmark, Anker Engelunds Vej 1 Bygning 101A, Kgs. Lyngby, Lyngby, Hovedstaden 2800, DK Denmark
| | - Paul Nealey
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - Yijun Qiao
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Center for Molecular Engineering, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States
| | - Vepa Rozyyev
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Applied Materials Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States
| | - George C Schatz
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208 United States
| | - Steven J Sibener
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Department of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - Dmitri Talapin
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Department of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - David M Tiede
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States
| | - Matthew V Tirrell
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Center for Molecular Engineering, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - Andrei Tokmakoff
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Department of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - Gregory A Voth
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Department of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - Zhongyang Wang
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - Zifan Ye
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637 United States
| | - Murat Yesibolati
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Technical University of Denmark, Anker Engelunds Vej 1 Bygning 101A, Kgs. Lyngby, Lyngby, Hovedstaden 2800, DK Denmark
| | - Nestor J Zaluzec
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Photon Sciences Directorate, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States
| | - Seth B Darling
- Advanced Materials for Energy-Water Systems (AMEWS) Energy Frontier Research Center (EFRC), Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Center for Molecular Engineering, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439 United States.,Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637 United States
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98
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Sarkar S, Maitra A, Lake WR, Warburton RE, Hammes-Schiffer S, Dawlaty JM. Mechanistic Insights about Electrochemical Proton-Coupled Electron Transfer Derived from a Vibrational Probe. J Am Chem Soc 2021; 143:8381-8390. [PMID: 34042429 DOI: 10.1021/jacs.1c01977] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Proton-coupled electron transfer (PCET) is a fundamental step in a wide range of electrochemical processes, including those of interest in energy conversion and storage. Despite its importance, several mechanistic details of such reactions remain unclear. Here, we have combined a proton donor (tertiary ammonium) with a vibrational Stark-shift probe (benzonitrile), to track the process from the entry of the reactants into the electrical double layer (EDL), to the PCET reaction associated with proton donation to the electrode, and the formation of products. We have used operando vibrational spectroscopy and periodic density functional theory under electrochemical bias to assign the reactant and product peaks and their Stark shifts. We have identified three main stages for the progress of the PCET reaction as a function of applied potential. First, we have determined the potential necessary for desolvation of the reactants and their entry into the polarizing environment of the EDL. Second, we have observed the appearance of product peaks prior to the onset of steady state electrochemical current, indicating formation of a stationary population of products that does not turn over. Finally, more negative of the onset potential, the electrode attracts additional reactants, displacing the stationary products and enabling steady state current. This work shows that the integration of a vibrational Stark-shift probe with a proton donor provides critical insight into the interplay between interfacial electrostatics and heterogeneous chemical reactions. Such insights cannot be obtained from electrochemical measurements alone.
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Affiliation(s)
- Sohini Sarkar
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Anwesha Maitra
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - William R Lake
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Robert E Warburton
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Sharon Hammes-Schiffer
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Jahan M Dawlaty
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
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99
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Shatla AS, Landstorfer M, Baltruschat H. On the Differential Capacitance and Potential of Zero Charge of Au(111) in Some Aprotic Solvents. ChemElectroChem 2021. [DOI: 10.1002/celc.202100316] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ahmed S. Shatla
- Institute of Physical and Theoretical Chemistry University of Bonn 53117 Bonn Germany
- Permanent address: Menoufia University Faculty of Science, Chemistry Dept. Shebin Elkoom 32511 Egypt
| | - Manuel Landstorfer
- Weierstrass Institute for Applied Analysis and Stochastics (WIAS) Mohrenstraße 39 Berlin 10117 Germany
| | - Helmut Baltruschat
- Institute of Physical and Theoretical Chemistry University of Bonn 53117 Bonn Germany
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Granda-Marulanda LP, McCrum IT, Koper MTM. A simple method to calculate solution-phase free energies of charged species in computational electrocatalysis. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:204001. [PMID: 33761487 DOI: 10.1088/1361-648x/abf19d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 03/24/2021] [Indexed: 06/12/2023]
Abstract
Determining the adsorption potential of adsorbed ions in the field of computational electrocatalysis is of great interest to study their interaction with the electrode material and the solvent, and to map out surface phase diagrams and reaction pathways. Calculating the adsorption potentials of ions with density functional theory and comparing across various ions requires an accurate reference energy of the ion in solution and electrons at the same electrochemical scale. Here we highlight a previously used method for determining the reference free energy of solution phase ions using a simple electrochemical thermodynamic cycle, which allows this free energy to be calculated from that of a neutral gas-phase or solid species and an experimentally measured equilibrium potential, avoiding the need to model solvent around the solution phase ion in the electronic structure calculations. While this method is not new, we describe its use and utility in detail and show that this same method can be used to find the free energy of any ion from any reaction, as long as the half-cell equilibrium potential is known, even for reactions that do not transfer the same number of protons and electrons. To illustrate its usability, we compare the adsorption potentials obtained with DFT of I*, Br*, Cl*, and SO4*on Pt(111) and Au(111) and OH*and Ag*on Pt(111) with those measured experimentally and find that this simple and computationally affordable method reproduces the experimental trends.
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Affiliation(s)
| | - Ian T McCrum
- Leiden Institute of Chemistry, Leiden University, PO Box 9502, 2300 RA Leiden, The Netherlands
- Department of Chemical & Biomolecular Engineering, Clarkson University, 8 Clarkson Ave., Potsdam, NY 13699, United States of America
| | - Marc T M Koper
- Leiden Institute of Chemistry, Leiden University, PO Box 9502, 2300 RA Leiden, The Netherlands
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