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Che Mohamad NAR, Chae K, Lee H, Kim J, Marques Mota F, Bang J, Kim DH. Synergistic effect of oxygen vacancies and in-situ formed bismuth metal centers on BiVO 4 as an enhanced bifunctional Li-O 2 batteries electrocatalyst. J Colloid Interface Sci 2024; 678:119-129. [PMID: 39182386 DOI: 10.1016/j.jcis.2024.08.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 08/13/2024] [Accepted: 08/18/2024] [Indexed: 08/27/2024]
Abstract
Bismuth Vanadate (BiVO4) is a promising oxide-based photoanode for electrochemical applications, yet its practical use is constrained by poor charge transport properties, particularly under dark conditions. This study introduces a novel BiVO4 variant (Bi-BiVO4-10) that incorporates abundant oxygen vacancies and in-situ formed Bi metal, significantly enhancing its electrical conductivity and catalytic performance. Bi-BiVO4-10 demonstrates superior electrochemical performances compared to conventional BiVO4 (C-BiVO4), demonstrated by its most positive half-wave potential with the highest diffusion-limiting current in the oxygen reduction reaction (ORR) and earliest onset potential in the oxygen evolution reaction (OER). Notably, Bi-BiVO4-10 is explored for the first time as an electrocatalyst for lithium-oxygen (Li-O2) cells, showing reduced overcharge (610 mV) in the first cycle and extended cycle life (1050 h), outperforming carbon (320 h) and C-BiVO4 (450 h) references. The enhancement is attributed to the synergy of oxygen vacancies, Bi metal formation, increased surface area, and improved electrical conductivity, which collectively facilitate Li2O2 growth, enhance charge transport kinetics, and ensure stable cycling. Theoretical calculations reveal enhanced chemical interactions between intermediate molecules and the defect-rich surfaces of Bi-BiVO4-10, promoting efficient discharge and charge processes in Li-O2 batteries. This research highlights the potential of unconventional BiVO4-based materials as durable electrocatalysts and for broader electrochemical applications.
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Affiliation(s)
- Nur Aqlili Riana Che Mohamad
- Department of Chemistry and Nanoscience, Division of Molecular and Life Sciences, College of Natural Sciences, Ewha Womans University, 52, Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea
| | - Kyunghee Chae
- Department of Chemistry and Nanoscience, Division of Molecular and Life Sciences, College of Natural Sciences, Ewha Womans University, 52, Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea
| | - Heejun Lee
- School of Materials Science and Engineering, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Jeongwon Kim
- Nanobio⋅Energy Materials Center (National Research Facilities and Equipment Center), Ewha Womans University, 52, Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea
| | - Filipe Marques Mota
- Joseph Banks Laboratories, Department of Chemistry, University of Lincoln, Lincoln LN6 7TS, United Kingdom.
| | - Joonho Bang
- School of Materials Science and Engineering, Gyeongsang National University, Jinju 52828, Republic of Korea; Department of Materials Engineering and Convergence Technology, Gyeongsang National University, Jinju 52828, Republic of Korea.
| | - Dong Ha Kim
- Department of Chemistry and Nanoscience, Division of Molecular and Life Sciences, College of Natural Sciences, Ewha Womans University, 52, Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea; Nanobio⋅Energy Materials Center (National Research Facilities and Equipment Center), Ewha Womans University, 52, Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea; Basic Sciences Research Institute, Ewha Womans University, 52, Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea.
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2
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Amblard D, Blase X, Duchemin I. Static versus dynamically polarizable environments within the many-body GW formalism. J Chem Phys 2024; 160:154104. [PMID: 38624115 DOI: 10.1063/5.0203637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 03/28/2024] [Indexed: 04/17/2024] Open
Abstract
Continuum- or discrete-polarizable models for the study of optoelectronic processes in embedded subsystems rely mostly on the restriction of the surrounding electronic dielectric response to its low frequency limit. Such a description hinges on the assumption that the electrons in the surrounding medium react instantaneously to any excitation in the central subsystem, thus treating the environment in the adiabatic limit. Exploiting a recently developed embedded GW formalism with an environment described at the fully ab initio level, we assess the merits of the adiabatic limit with respect to an environment where the full dynamics of the dielectric response are considered. Furthermore, we show how to properly take the static limit of the environment's susceptibility by introducing the so-called Coulomb-hole and screened-exchange contributions to the reaction field. As a first application, we consider a C60 molecule at the surface of a C60 crystal, namely, a case where the dynamics of the embedded and embedding subsystems are similar. The common adiabatic assumption, when properly treated, generates errors below 10% on the polarization energy associated with frontier energy levels and associated energy gaps. Finally, we consider a water molecule inside a metallic nanotube, the worst case for the environment's adiabatic limit. The error on the gap polarization energy remains below 10%, even though the error on the frontier orbital polarization energies can reach a few tenths of an electronvolt.
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Affiliation(s)
- David Amblard
- University Grenoble Alpes, CNRS, Inst NEEL, F-38042 Grenoble, France
| | - Xavier Blase
- University Grenoble Alpes, CNRS, Inst NEEL, F-38042 Grenoble, France
| | - Ivan Duchemin
- University Grenoble Alpes, CEA, IRIG-MEM-L_Sim, 38054 Grenoble, France
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3
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Bigham A, Raucci MG, Zheng K, Boccaccini AR, Ambrosio L. Oxygen-Deficient Bioceramics: Combination of Diagnosis, Therapy, and Regeneration. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2302858. [PMID: 37259776 DOI: 10.1002/adma.202302858] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/15/2023] [Indexed: 06/02/2023]
Abstract
The journey of ceramics in medicine has been synchronized with an evolution from the first generation-alumina, zirconia, etc.-to the third -3D scaffolds. There is an up-and-coming member called oxygen-deficient or colored bioceramics, which have recently found their way through biomedical applications. The oxygen vacancy steers the light absorption toward visible and near infrared regions, making the colored bioceramics multifunctional-therapeutic, diagnostic, and regenerative. Oxygen-deficient bioceramics are capable of turning light into heat and reactive oxygen species for photothermal and photodynamic therapies, respectively, and concomitantly yield infrared and photoacoustic images. Different types of oxygen-deficient bioceramics have been recently developed through various synthesis routes. Some of them like TiO2- x , MoO3- x , and WOx have been more investigated for biomedical applications, whereas the rest have yet to be scrutinized. The most prominent advantage of these bioceramics over the other biomaterials is their multifunctionality endowed with a change in the microstructure. There are some challenges ahead of this category discussed at the end of the present review. By shedding light on this recently born bioceramics subcategory, it is believed that the field will undergo a big step further as these platforms are naturally multifunctional.
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Affiliation(s)
- Ashkan Bigham
- Institute of Polymers, Composites and Biomaterials-National Research Council (IPCB-CNR), Viale J. F. Kennedy 54-Mostra d'Oltremare pad. 20, Naples, 80125, Italy
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, Piazzale V. Tecchio 80, Naples, 80125, Italy
| | - Maria Grazia Raucci
- Institute of Polymers, Composites and Biomaterials-National Research Council (IPCB-CNR), Viale J. F. Kennedy 54-Mostra d'Oltremare pad. 20, Naples, 80125, Italy
| | - Kai Zheng
- Jiangsu Key Laboratory of Oral Diseases and Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, 210029, China
| | - Aldo R Boccaccini
- Institute for Biomaterials, University of Erlangen-Nuremberg, 91058, Erlangen, Germany
| | - Luigi Ambrosio
- Institute of Polymers, Composites and Biomaterials-National Research Council (IPCB-CNR), Viale J. F. Kennedy 54-Mostra d'Oltremare pad. 20, Naples, 80125, Italy
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4
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Kumar M, Vaish R, Kebaili I, Boukhris I, Kwang Benno Park H, Hwan Joo Y, Hyun Sung T, Kumar A. Ball-milling synthesized Bi 2VO 5.5 for piezo-photocatalytic assessment. Sci Rep 2023; 13:8188. [PMID: 37210398 DOI: 10.1038/s41598-023-33658-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/17/2023] [Indexed: 05/22/2023] Open
Abstract
The mechanochemical ball milling followed by heating at 650 °C for 5 h successfully produced the single-phase Bi2VO5.5 powder. Catalytic activity for methylene blue dye degradation was investigated. Raman spectroscopy and X-ray diffraction were used to confirm the phase formation. The sample's charge carrier transportation behavior was ascertained using time-dependent photocurrent analysis. The piezo-photocatalysis experiment yielded a 63% degradation efficiency for the ball-milled Bi2VO5.5 sample. The pseudo-first-order kinetics of the piezo-photocatalytic dye degradation are discerned, and the significant k value of 0.00529 min-1 is achieved. The scavenger test declares the h+ radical is the predominant active species during the piezo-photocatalysis experiment. Vigna radiata seeds were used in a phytotoxicity test to evaluate the germination index. The mechanochemical activation method facilitates reactions by lowering reaction temperature and time. The effect of improved piezo-photocatalytic efficiency on the ball-milled Bi2VO5.5 powder is an unexplored area, and we have attempted to investigate it. Here, ball-milled Bi2VO5.5 powder achieved improved dye degradation performance.
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Affiliation(s)
- Manish Kumar
- School of Engineering, Indian Institute of Technology Mandi, Mandi, Himachal Pradesh, 175005, India
| | - Rahul Vaish
- School of Engineering, Indian Institute of Technology Mandi, Mandi, Himachal Pradesh, 175005, India
| | - Imen Kebaili
- Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia
| | - Imed Boukhris
- Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia
| | - Hyeong Kwang Benno Park
- Department of Electrical Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
| | - Yun Hwan Joo
- Department of Electrical Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
| | - Tae Hyun Sung
- Department of Electrical Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
| | - Anuruddh Kumar
- Center for Creative Convergence Education, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea.
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5
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Kumar M, Vaish R, Sung TH, Kumar A, Yousef ES. Mechanochemical Synthesis of Bi 2VO 5.5 for Improved Photocatalytic Dye Degradation. GLOBAL CHALLENGES (HOBOKEN, NJ) 2023; 7:2200172. [PMID: 37020623 PMCID: PMC10069314 DOI: 10.1002/gch2.202200172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 12/09/2022] [Indexed: 06/19/2023]
Abstract
A single-phase Bi2VO5.5 powder is formed effectively through a mechanochemical ball milling approach at 650 °C in 5 h and its photocatalytic performance on methylene blue dye is explored. X-ray diffraction and Raman spectroscopy analytical instruments are utilized to confirm the phase formation. The evident presence of irregular-shaped grains is affirmed using a scanning electron microscope. To ascertain the chemical condition of the components present, the Bi2VO5.5 powdered sample undergo an X-Ray photoelectron spectroscopy investigation. The sample is analyzed using a time-dependent photocurrent to discern its charge carrier transportation behavior. A photocatalytic study using Bi2VO5.5 powder produced through the mechanochemical ball milling method has not been explored till now. The efficacy of the ball-milled Bi2VO5.5 powder to attain enhanced photocatalytic efficiency which hasn't been investigated till now, is explored. The ball-milled Bi2VO5.5 sample achieved 70% degradation efficiency when performing the photocatalysis investigation. The photocatalytic dye degradation discerns pseudo-first-order kinetics and achieves a notable k value of 0.00636 min-1. The scavenger test indicates that h+ radicals are the prominent active species during the photocatalysis experiment. The germination index is determined by conducting a phytotoxicity test with the use of Vigna radiata seeds. Here ball-milled Bi2VO5.5 powder attains enhanced dye degradation efficiency.
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Affiliation(s)
- Manish Kumar
- School of Mechanical and Materials EngineeringIndian Institute of Technology MandiMandi175005India
| | - Rahul Vaish
- School of Mechanical and Materials EngineeringIndian Institute of Technology MandiMandi175005India
| | - Tae Hyun Sung
- Department of Electrical EngineeringHanyang University222, Wangsimni‐ro, Seongdong‐guSeoul04763Korea
| | - Anuruddh Kumar
- Center for Creative Convergence Education, Hanyang University222, Wangsimni‐ro, Seongdong‐gu04763SeoulKorea
| | - El Sayed Yousef
- Research Center for Advanced Materials Science (RCAMS)King Khalid University61413, P. O. Box 9004Abha9004Saudi Arabia
- Physics DepartementFaculty of ScienceKing Khalid UniversityP. O. Box 9004Abha9004Saudi Arabia
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6
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Jiang S, Mushrif SH. Determining surface-specific Hubbard- U corrections and identifying key adsorbates on nickel and cobalt oxide catalyst surfaces. Phys Chem Chem Phys 2023; 25:8903-8912. [PMID: 36916613 DOI: 10.1039/d2cp04814k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
NiO is a popular transition metal oxide (TMO) with high thermal and chemical stability and Co3O4 is a relatively more reducible TMO due to weaker metal-oxygen bonds. Both are often used as catalysts in a variety of chemical transformations. Density functional theory (DFT) and X-ray photoelectron spectroscopy (XPS) are used to investigate catalysis on TMO surfaces, yet both techniques have their own limitations. The accuracy of DFT highly depends on the choice of Hubbard U correction. The bulk-property optimized U value of 5.3 eV for NiO and different U values for Co3O4, without any consensus, are often used in the literature to simulate surface catalysis. However, U values optimized using bulk properties often fail to reproduce surface-adsorbate interactions on TMOs. Similarly, there exists arbitrariness in assigning observed XPS shifts to different surface species on these metal oxides. Hence, a synergistic application of XPS and DFT+U is implemented to determine the surface specific U values for NiO and Co3O4, and to identify adsorbed surface moieties corresponding to experimentally observed XPS shifts. For the NiO (100) surface, the U value of ∼2 eV is able to reproduce the experimentally observed XPS O1s core level binding energy shifts correctly, instead of the bulk property optimized and commonly used U value of 5.3 eV. Using this surface specific U value of 2 eV, the experimentally observed XPS shifts are assigned. Similarly, for Co3O4 (100) surface, ∼3 eV of U value could successfully predict the experimentally observed XPS shifts and corresponding adsorbates. The surface adsorbates and configurations suggested in this work will help analyze experimental XPS data and the surface specific U values will ensure accurate predictions of adsorption and reaction energetics on these catalysts.
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Affiliation(s)
- Shang Jiang
- Department of Chemical and Materials Engineering, University of Alberta, 9211-116 Street Northwest, Edmonton, Alberta T6G 1H9, Canada.
| | - Samir H Mushrif
- Department of Chemical and Materials Engineering, University of Alberta, 9211-116 Street Northwest, Edmonton, Alberta T6G 1H9, Canada.
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7
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Hinuma Y, Mine S, Toyao T, Shimizu KI. Trends in Surface Oxygen Formation Energy in Perovskite Oxides. ACS OMEGA 2022; 7:18427-18433. [PMID: 35694487 PMCID: PMC9178614 DOI: 10.1021/acsomega.2c00702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 04/27/2022] [Indexed: 06/15/2023]
Abstract
Perovskite oxides comprise an important class of materials, and some of their applications depend on the surface reactivity characteristics. We calculated, using density functional theory, the surface O vacancy formation energy (E Ovac) for perovskite-structure oxides, with a transition metal (Ti-Fe) as the B-site cation, to estimate the catalytic reactivity of perovskite oxides. The E Ovac value correlated well with the band gap and bulk formation energy, which is a trend also found in other oxides. A low E Ovac value, which is expected to result in higher catalytic activity via the Mars-van Krevelen mechanism, was found in metallic perovskites such as CaCoO3, BaFeO3, and SrFeO3. On the other hand, titanates had high E Ovac values, typically exceeding 4 eV/atom, suggesting that these materials are less reactive when O vacancy formation is involved in the reaction mechanism.
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Affiliation(s)
- Yoyo Hinuma
- Department
of Energy and Environment, National Institute
of Advanced Industrial Science and Technology (AIST), 1-8-31, Midorigaoka, Ikeda 563-8577, Japan
| | - Shinya Mine
- Institute
for Catalysis, Hokkaido University, N-21, W-10, 1-5, Sapporo 001-0021, Japan
| | - Takashi Toyao
- Institute
for Catalysis, Hokkaido University, N-21, W-10, 1-5, Sapporo 001-0021, Japan
- Elements
Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Kyoto 615-8520, Japan
| | - Ken-ichi Shimizu
- Institute
for Catalysis, Hokkaido University, N-21, W-10, 1-5, Sapporo 001-0021, Japan
- Elements
Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Kyoto 615-8520, Japan
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8
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Kumar M, Ansari MNM, Boukhris I, Al‐Buriahi MS, Alrowaili ZA, Alfryyan N, Thomas P, Vaish R. Sonophotocatalytic Dye Degradation Using rGO-BiVO 4 Composites. GLOBAL CHALLENGES (HOBOKEN, NJ) 2022; 6:2100132. [PMID: 35712021 PMCID: PMC9189135 DOI: 10.1002/gch2.202100132] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 01/21/2022] [Indexed: 05/06/2023]
Abstract
Reduced graphene oxide (rGO)/bismuth vanadate BiVO4 composites are fabricated with varied rGO amounts (0, 1, 2, and 3 wt%) through the synergetic effects of ultrasonication, photoinduced reduction, and hydrothermal methods, and the materials are tested as tools for sonophotocatalytic methylene blue (MB) dye degradation. The effect of rGO content on the sonophotocatalytic dye degradation capabilities of the composites are explored. Characterization of the proposed materials is done through transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transformation infrared spectroscopy as well as scanning electron microscopy. The coexistence of BiVO4 and rGO is confirmed using Raman spectroscopy and XRD. TEM confirms the existence of interfaces between rGO and BiVO4 and XPS affirms the existence of varied elemental oxidation states. In order to investigate the charge carriers transportation, time-dependent photocurrent responses of BiVO4 and 2 wt%- rGO/BiVO4 are done under visible light irradiation. The sonophotocatalytic MB dye degradation in an aqueous medium displays promising enhancement with rGO doping in rGO/BiVO4 composite. The 2 wt%- rGO/BiVO4 sample exhibits ≈52% MB dye degradation efficiency as compared to pure BiVO4 (≈25%) in 180 min of the sonophotocatalysis experiment. Phytotoxicity analysis through germination index is done using vigna radiata seeds.
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Affiliation(s)
- Manish Kumar
- School of EngineeringIndian Institute of Technology MandiMandiHimachal Pradesh175005India
| | - M. N. M. Ansari
- Institute of Power EngineeringUniversiti Tenaga NasionalKajangSelangor43000Malaysia
| | - Imed Boukhris
- Department of PhysicsFaculty of ScienceKing Khalid UniversityP. O. Box 9004AbhaSaudi Arabia
- Laboratoire des matériaux composites céramiques et polymères (LaMaCoP)Département de PhysiqueFaculté des Sciences de SfaxUniversité de Sfax BP 805Sfax3000Tunisia
| | - M. S. Al‐Buriahi
- Department of PhysicsSakarya UniversityEsentepe CampusSakarya54187Turkey
| | - Z. A. Alrowaili
- Physics departmentCollege of ScienceJouf UniversityP. O. Box 2014SakakaSaudi Arabia
| | - Nada Alfryyan
- Department of PhysicsCollege of SciencePrincess Nourah bint Abdulrahman UniversityP. O. Box 84428Riyadh11671Saudi Arabia
| | - P. Thomas
- Central Power Research InstituteDielectric Materials Division BengaluruKarnataka560080India
| | - Rahul Vaish
- School of EngineeringIndian Institute of Technology MandiMandiHimachal Pradesh175005India
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9
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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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10
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Abdelgaid M, Mpourmpakis G. Structure–Activity Relationships in Lewis Acid–Base Heterogeneous Catalysis. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mona Abdelgaid
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Giannis Mpourmpakis
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
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11
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Mine S, Toyao T, Hinuma Y, Shimizu KI. Understanding and controlling the formation of surface anion vacancies for catalytic applications. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00014h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Systematic computational efforts aimed at calculating surface anion vacancy formation energies as important descriptors of catalytic performance are summarized.
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Affiliation(s)
- Shinya Mine
- Institute for Catalysis, Hokkaido University, N-21, W-10, 1-5, Sapporo 001-0021, Japan
| | - Takashi Toyao
- Institute for Catalysis, Hokkaido University, N-21, W-10, 1-5, Sapporo 001-0021, Japan
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Nishigyo, Kyoto 615-8520, Japan
| | - Yoyo Hinuma
- Department of Energy and Environment, National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31, Midorigaoka, Ikeda 563-8577, Japan
| | - Ken-ichi Shimizu
- Institute for Catalysis, Hokkaido University, N-21, W-10, 1-5, Sapporo 001-0021, Japan
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Nishigyo, Kyoto 615-8520, Japan
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12
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Pan J, Ma X, Zhang W, Hu J. Enhancing the photocatalytic hydrogen production activity of BiVO 4 [110] facets using oxygen vacancies. RSC Adv 2021; 12:540-545. [PMID: 35424485 PMCID: PMC8978636 DOI: 10.1039/d1ra07121a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 12/09/2021] [Indexed: 11/21/2022] Open
Abstract
The activity of the hydrogen evolution reaction (HER) during photoelectrochemical (PEC) water-splitting is limited when using BiVO4 with an exposed [110] facet because the conduction band minimum is below the H+/H2O potential. Here, we enhance the photocatalytic hydrogen production activity through introducing an oxygen vacancy. Our first-principles calculations show that the oxygen vacancy can tune the band edge positions of the [110] facet, originating from an induced internal electric field related to geometry distortion and charge rearrangement. Furthermore, the induced electric field favors photogenerated electron-hole separation and the enhancement of atomic activity. More importantly, oxygen-vacancy-induced electronic states can increase the probability of photogenerated electron transitions, thus improving optical absorption. This study indicates that oxygen-defect engineering is an effective method for improving the photocatalytic activity when using PEC technology.
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Affiliation(s)
- Jing Pan
- College of Physics Science and Technology, Yangzhou University Yangzhou 225002 China
| | - Xiaoxue Ma
- College of Physics Science and Technology, Yangzhou University Yangzhou 225002 China
| | - Wannian Zhang
- College of Physics Science and Technology, Yangzhou University Yangzhou 225002 China
| | - Jingguo Hu
- College of Physics Science and Technology, Yangzhou University Yangzhou 225002 China
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13
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Nikačević P, Hegner FS, Galán-Mascarós JR, López N. Influence of Oxygen Vacancies and Surface Facets on Water Oxidation Selectivity toward Oxygen or Hydrogen Peroxide with BiVO 4. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03256] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Pavle Nikačević
- Institut Català d’Investigació Química (ICIQ), The Barcelona Institute of Science and Technology (BIST), Avda. Països Catalans, 16, 43007 Tarragona, Spain
| | - Franziska S. Hegner
- Institut Català d’Investigació Química (ICIQ), The Barcelona Institute of Science and Technology (BIST), Avda. Països Catalans, 16, 43007 Tarragona, Spain
| | - José Ramón Galán-Mascarós
- Institut Català d’Investigació Química (ICIQ), The Barcelona Institute of Science and Technology (BIST), Avda. Països Catalans, 16, 43007 Tarragona, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluís Companys 23, 08010 Barcelona, Spain
| | - Núria López
- Institut Català d’Investigació Química (ICIQ), The Barcelona Institute of Science and Technology (BIST), Avda. Països Catalans, 16, 43007 Tarragona, Spain
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Baker LR, Diebold U, Park JY, Selloni A. Oxide chemistry and catalysis. J Chem Phys 2020; 153:050401. [DOI: 10.1063/5.0021819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- L. Robert Baker
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43221, USA
| | - Ulrike Diebold
- Institute of Applied Physics, TU Wien, 1040 Vienna, Austria
| | - Jeong Young Park
- Department of Chemistry, KAIST, Daejeon 34141, South Korea
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon 34141, South Korea
| | - Annabella Selloni
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA
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