1
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Huang X, Perera IP, Shubhashish S, Suib SL. Unveiling Enhanced PEC Water Oxidation: Morphology Tuning and Interfacial Phase Change in α-Fe 2O 3@K-OMS-2 Branched Core-Shell Nanoarrays. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38691761 DOI: 10.1021/acsami.4c03164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
A simple fabrication method that involves two steps of hydrothermal reaction has been demonstrated for the growth of α-Fe2O3@K-OMS-2 branched core-shell nanoarrays. Different reactant concentrations in the shell-forming step led to different morphologies in the resultant composites, denoted as 0.25 OC, 0.5 OC, and 1.0 OC. Both 0.25 OC and 0.5 OC formed perfect branched core-shell structures, with 0.5 OC possessing longer branches, which were observed by SEM and TEM. The core K-OMS-2 and shell α-Fe2O3 were confirmed by grazing incidence X-ray diffraction (GIXRD), EDS mapping, and atomic alignment from high-resolution STEM images. Further investigation with high-resolution HAADF-STEM, EELS, and XPS indicated the existence of an ultrathin layer of Mn3O4 sandwiched at the interface. All composite materials offered greatly enhanced photocurrent density at 1.23 VRHE, compared to the pristine Fe2O3 photoanode (0.33 mA/cm2), and sample 0.5 OC showed the highest photocurrent density of 2.81 mA/cm2. Photoelectrochemical (PEC) performance was evaluated for the samples by conducting linear sweep voltammetry (LSV), applied bias photo-to-current efficiency (ABPE), electrochemical impedance spectroscopy (EIS), incident-photo-to-current efficiency (IPCE), transient photocurrent responses, and stability tests. The charge separation and transfer efficiencies, together with the electrochemically active surface area, were also investigated. The significant enhancement in sample 0.5 OC is ascribed to the synergetic effect brought by the longer branches in the core-shell structure, the conductive K-OMS-2 core, and the formation of the Mn3O4 thin layer formed between the core and shell.
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Affiliation(s)
- Xueni Huang
- Department of Chemistry, University of Connecticut, U-3060, 55 North Eagleville Rd., Storrs, Connecticut 06269, United States
| | - Inosh P Perera
- Department of Chemistry, University of Connecticut, U-3060, 55 North Eagleville Rd., Storrs, Connecticut 06269, United States
| | - Shubhashish Shubhashish
- Department of Chemistry, University of Connecticut, U-3060, 55 North Eagleville Rd., Storrs, Connecticut 06269, United States
| | - Steven L Suib
- Department of Chemistry, University of Connecticut, U-3060, 55 North Eagleville Rd., Storrs, Connecticut 06269, United States
- Institute of Materials Science, University of Connecticut, 97 North Eagleville Rd., Storrs, Connecticut 06269, United States
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2
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Zhang S, Leng W. Quantitative Determination the Role of the Intrabandgap States in Water Photooxidation over Hematite Electrodes. J Phys Chem Lett 2023; 14:9316-9323. [PMID: 37818854 DOI: 10.1021/acs.jpclett.3c02461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
The intrabandgap states on the hematite (α-Fe2O3) electrodes are believed to play an important role in water photooxidation. Yet, it is not fully understood how the intrabandgap states are involved in the reaction. In this work, the intraband-gap states in water photooxidation on α-Fe2O3 electrodes are investigated by a combination of multiple (photo-) electrochemical techniques and operando spectroscopic methods. Two kinds of surface states are observed on the electrodes during water photooxidation, and their roles are quantitatively determined by the correlation with the steady-state photocurrent. It is demonstrated that the intrinsic electronic surface state close to the conduction band can act only as the recombination center for the photocarriers. However, the photogenerated surface state closer to the valence band is revealed to be the reactant in the rate-determining step in oxygen evolution reaction. These findings may be beneficial to elucidate the actual function of the surface states and provide insights into the kinetic and mechanism studies of water photooxidation on the α-Fe2O3 electrodes.
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Affiliation(s)
- Shufeng Zhang
- Department of Chemistry, Zijingang Campus, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Wenhua Leng
- Department of Chemistry, Zijingang Campus, Zhejiang University, Hangzhou, Zhejiang 310058, China
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3
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Kim YM, Hong Y, Hur K, Kim MS, Sung YM. Surface Rh-Boosted Photoelectrochemical Water Oxidation of α-Fe 2O 3 by Reduced Overpotential in the Rate-Determining Step. ACS APPLIED MATERIALS & INTERFACES 2023; 15:37290-37299. [PMID: 37489940 DOI: 10.1021/acsami.3c04458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
The photoelectrochemical behavior of Rh cluster-deposited hematite (α-Fe2O3) photoanodes (α-Fe2O3@Rh) was investigated. The interactions between Rh clusters and α-Fe2O3 nanorods were elucidated both experimentally and computationally. A facile UV-assisted solution casting deposition method allowed the deposition of 2 nm Rh clusters on α-Fe2O3. The deposited Rh clusters effectively enhanced the photoelectrochemical performance of the α-Fe2O3 photoanode, and electrochemical impedance spectroscopy (EIS) and Mott-Schottky analysis were applied to understand the working mechanism for the α-Fe2O3@Rh photoanodes. The results revealed a distinctive carrier transport mechanism for α-Fe2O3@Rh and increased carrier density, while the absorbance spectra remained unchanged. Furthermore, density functional theory (DFT) calculations of the oxygen evolution reaction (OER) mechanism corresponded well with the experimental results, indicating a reduced overpotential of the rate-determining step. In addition, DFT calculation models based on the X-ray diffraction (XRD) measurements and X-ray photoelectron spectroscopy (XPS) results provided precise water-splitting mechanisms for the fabricated α-Fe2O3 and α-Fe2O3@Rh nanorods. Owing to enhanced carrier generation and hole transfer, the optimum α-Fe2O3@Rh3 sample showed 78% increased photocurrent density, reaching 1.12 mA/cm-2 at 1.23 VRHE compared to that of the pristine α-Fe2O3 nanorods electrode.
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Affiliation(s)
- Young-Min Kim
- Department of Materials Science & Engineering, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Yerin Hong
- Extreme Materials Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Kahyun Hur
- Extreme Materials Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Min-Seok Kim
- Extreme Materials Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Yun-Mo Sung
- Department of Materials Science & Engineering, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
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4
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Advances in Engineered Metal Oxide Thin Films by Low-Cost, Solution-Based Techniques for Green Hydrogen Production. NANOMATERIALS 2022; 12:nano12121957. [PMID: 35745297 PMCID: PMC9229379 DOI: 10.3390/nano12121957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/06/2022] [Accepted: 05/17/2022] [Indexed: 02/07/2023]
Abstract
Functional oxide materials have become crucial in the continuous development of various fields, including those for energy applications. In this aspect, the synthesis of nanomaterials for low-cost green hydrogen production represents a huge challenge that needs to be overcome to move toward the next generation of efficient systems and devices. This perspective presents a critical assessment of hydrothermal and polymeric precursor methods as potential approaches to designing photoelectrodes for future industrial implementation. The main conditions that can affect the photoanode's physical and chemical characteristics, such as morphology, particle size, defects chemistry, dimensionality, and crystal orientation, and how they influence the photoelectrochemical performance are highlighted in this report. Strategies to tune and engineer photoelectrode and an outlook for developing efficient solar-to-hydrogen conversion using an inexpensive and stable material will also be addressed.
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5
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Kumar GM, Cho HD, Lee DJ, Kumar JR, Siva C, Ilanchezhiyan P, Kim DY, Kang TW. Elevating the charge separation of MgFe 2O 4 nanostructures by Zn ions for enhanced photocatalytic and photoelectrochemical water splitting. CHEMOSPHERE 2021; 283:131134. [PMID: 34157619 DOI: 10.1016/j.chemosphere.2021.131134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 05/19/2021] [Accepted: 06/03/2021] [Indexed: 06/13/2023]
Abstract
Magnesium ferrites (MgFe2O4) are important class of ferrites that have been receiving greater attention as promising excellent photocatalyst due to its low cost, wide light spectrum response and environment-friendly nature. However, its poor electronic conductivity and fast charge carrier recombination hinders its electrocatalytical applications. Hence, accelerating charge carriers separation efficiency is important to modify the photoelectrochemical performance of MgFe2O4. Herein, novel Zn ions doped MgFe2O4 nanospheres are fabricated for the first time. Zn ions are doped into MgFe2O4 nanostructures from surface to enhance their charge separation efficiency. The doped MgFe2O4 nanostructures show significant photocatalytic activity and enhanced photocurrent density than that of pristine MgFe2O4.The improved photoelectrocatalytic performance is attributed to doping effect, were Zn ions actually enhance the conductivity. Zn ions enhance the activity of MgFe2O4 and accelerate the charge transfer properties in MgFe2O4. The results highlight that Zn doped MgFe2O4 nanospheres could be a potential candidate for photocatalytic and photoelectrochemical applications.
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Affiliation(s)
- G Mohan Kumar
- Quantum-Functional Semiconductor Research Center (QSRC), Institute of Future Technology, Dongguk University, Seoul, South Korea
| | - H D Cho
- Quantum-Functional Semiconductor Research Center (QSRC), Institute of Future Technology, Dongguk University, Seoul, South Korea
| | - D J Lee
- Quantum-Functional Semiconductor Research Center (QSRC), Institute of Future Technology, Dongguk University, Seoul, South Korea
| | - J Ram Kumar
- Department of Physics, Faculty of Physical and Mathematical Sciences, University of Concepcion, Concepcion, Chile
| | - C Siva
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, India
| | - P Ilanchezhiyan
- Quantum-Functional Semiconductor Research Center (QSRC), Institute of Future Technology, Dongguk University, Seoul, South Korea.
| | - D Y Kim
- Quantum-Functional Semiconductor Research Center (QSRC), Institute of Future Technology, Dongguk University, Seoul, South Korea
| | - T W Kang
- Quantum-Functional Semiconductor Research Center (QSRC), Institute of Future Technology, Dongguk University, Seoul, South Korea
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6
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Maitra S, Sarkar A, Maitra T, Halder S, Kargupta K, Roy S. Solvothermal phase change induced morphology transformation in CdS/CoFe 2O 4@Fe 2O 3 hierarchical nanosphere arrays as ternary heterojunction photoanodes for solar water splitting. NEW J CHEM 2021. [DOI: 10.1039/d1nj00864a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The design of efficient heterojunction photoanodes with appropriate band alignment and ease of charge separation has been one of the most highly focused research areas in photoelectrodes.
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Affiliation(s)
- Soumyajit Maitra
- Department of Chemical Engineering
- University of Calcutta
- Kolkata
- India
| | - Arundhati Sarkar
- Department of Chemical Engineering
- Jadavpur University
- Kolkata
- India
| | - Toulik Maitra
- Department of Chemical Engineering
- University of Calcutta
- Kolkata
- India
| | - Somoprova Halder
- Department of Chemical Engineering
- University of Calcutta
- Kolkata
- India
| | - Kajari Kargupta
- Department of Chemical Engineering
- Jadavpur University
- Kolkata
- India
| | - Subhasis Roy
- Department of Chemical Engineering
- University of Calcutta
- Kolkata
- India
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7
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Aktar A, Ahmmed S, Hossain J, Ismail ABM. Solution-Processed Synthesis of Copper Oxide (Cu x O) Thin Films for Efficient Photocatalytic Solar Water Splitting. ACS OMEGA 2020; 5:25125-25134. [PMID: 33043191 PMCID: PMC7542592 DOI: 10.1021/acsomega.0c02754] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 09/15/2020] [Indexed: 06/11/2023]
Abstract
This article reports a solution-processed synthesis of copper oxide (Cu x O) to be used as a potential photocathode for solar hydrogen production in the solar water-splitting system. Cu x O thin films were synthesized through the reduction of copper iodide (CuI) thin films by sodium hydroxide (NaOH), which were deposited by the spin coating method from CuI solution in a polar aprotic solvent (acetonitrile). The phase and crystalline quality of the synthesized Cu x O thin films prepared at various annealing temperatures were investigated using various techniques. The X-ray diffraction and energy dispersive X-ray spectroscopy studies confirm the presence of Cu2O, CuO/Cu2O mixed phase, and pure CuO phase at annealing temperatures of 250, 300, and 350 °C, respectively. It is revealed from the experimental findings that the synthesized Cu x O thin films with an annealing temperature of 350 °C possess the highest crystallinity, smooth surface morphology, and higher carrier density. The highest photocurrent density of -19.12 mA/cm2 at -1 V versus RHE was achieved in the photoelectrochemical solar hydrogen production system with the use of the Cu x O photocathode annealed at a temperature of 350 °C. Therefore, it can be concluded that Cu x O synthesized by the spin coating method through the acetonitrile solvent route can be used as an efficient photocathode in the solar water-splitting system.
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Affiliation(s)
- Asma Aktar
- Solar Energy Laboratory, Department
of Electrical and Electronic Engineering, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Shamim Ahmmed
- Solar Energy Laboratory, Department
of Electrical and Electronic Engineering, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Jaker Hossain
- Solar Energy Laboratory, Department
of Electrical and Electronic Engineering, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Abu Bakar Md. Ismail
- Solar Energy Laboratory, Department
of Electrical and Electronic Engineering, University of Rajshahi, Rajshahi 6205, Bangladesh
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8
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Girardi L, Rizzi GA, Bigiani L, Barreca D, Maccato C, Marega C, Granozzi G. Copper Vanadate Nanobelts as Anodes for Photoelectrochemical Water Splitting: Influence of CoO x Overlayers on Functional Performances. ACS APPLIED MATERIALS & INTERFACES 2020; 12:31448-31458. [PMID: 32558537 DOI: 10.1021/acsami.0c06915] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The design and development of environmentally friendly and robust anodes for photoelectrochemical (PEC) water splitting plays a critical role for the efficient conversion of radiant energy into hydrogen fuel. In this regard, quasi-1D copper vanadates (CuV2O6) were grown on conductive substrates by a hydrothermal procedure and processed for use as anodes in PEC cells, with particular attention on the role exerted by cobalt oxide (CoOx) overlayers deposited by radio frequency (RF) sputtering. The target materials were characterized in detail by a multitechnique approach with the aim at elucidating the interplay between their structure, composition, morphology, and the resulting activity as photoanodes. Functional tests were performed by standard electrochemical techniques like linear sweep voltammetry, impedance spectroscopy, and by the less conventional intensity modulated photocurrent spectroscopy, yielding an important insight into the material PEC properties. The obtained results highlight that, despite the fact that the supposedly favorable band alignment between CuV2O6 and Co3O4 did not yield a net current density increase, cobalt oxide-functionalized anodes afforded a remarkable durability enhancement, an important prerequisite for their eventual real-world applications. The concurrent phenomena accounting for the observed behavior are presented and discussed in relation to material physico-chemical properties.
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Affiliation(s)
- Leonardo Girardi
- Department of Chemical Sciences, Padova University and INSTM, Padova 35131, Italy
| | - Gian Andrea Rizzi
- Department of Chemical Sciences, Padova University and INSTM, Padova 35131, Italy
| | - Lorenzo Bigiani
- Department of Chemical Sciences, Padova University and INSTM, Padova 35131, Italy
| | - Davide Barreca
- CNR-ICMATE and INSTM, Department of Chemical Sciences, Padova University, Padova 35131 Italy
| | - Chiara Maccato
- Department of Chemical Sciences, Padova University and INSTM, Padova 35131, Italy
| | | | - Gaetano Granozzi
- Department of Chemical Sciences, Padova University and INSTM, Padova 35131, Italy
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9
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Shabangoli Y, El-Kady MF, Nazari M, Dadashpour E, Noori A, Rahmanifar MS, Lv X, Zhang C, Kaner RB, Mousavi MF. Exploration of Advanced Electrode Materials for Approaching High-Performance Nickel-Based Superbatteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2001340. [PMID: 32519514 DOI: 10.1002/smll.202001340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/30/2020] [Accepted: 04/30/2020] [Indexed: 06/11/2023]
Abstract
The surging interest in high performance, low-cost, and safe energy storage devices has spurred tremendous research efforts in the development of advanced electrode active materials. Herein, the in situ growth of zinc-iron layered double hydroxide (Zn-Fe LDH) on graphene aerogel (GA) substrates through a facile, one-pot hydrothermal method is reported. The strong interaction and efficient electronic coupling between LDH and graphene substantially improve interfacial charge transport properties of the resulting nanocomposite and provide more available redox active sites for faradaic reactions. An LDH-GA||Ni(OH)2 device is also fabricated that results in greatly enhanced specific capacity (187 mAh g-1 at 0.1 A g-1 ), outstanding specific energy (147 Wh kg-1 ), excellent specific power (16.7 kW kg-1 ), along with 88% capacity retention after >10 000 cycles. This approach is further extended to Ni-MH and Ni-Cd batteries to demonstrate the feasibility of compositing with graphene for boosting the energy storage performance of other well-known Ni-based batteries. In contrast to conventional Ni-based batteries, the nearly flat voltage plateau followed by a sloping potential profile of the integrated supercapacitor-battery enables it to be discharged down to 0 V without being damaged. These findings provide new prospects for the design of high-performance and affordable superbatteries based on earth-abundant elements.
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Affiliation(s)
- Yasin Shabangoli
- Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, 14117-13116, Iran
| | - Maher F El-Kady
- Department of Chemistry and Biochemistry, Department of Materials Science and Engineering, and California NanoSystems Institute, University of California, Los Angeles (UCLA), Los Angeles, CA, 90095, USA
| | - Mahrokh Nazari
- Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, 14117-13116, Iran
| | - Elaheh Dadashpour
- Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, 14117-13116, Iran
| | - Abolhassan Noori
- Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, 14117-13116, Iran
| | | | - Xiaojing Lv
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road, Hangzhou, 310014, P. R. China
| | - Cheng Zhang
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road, Hangzhou, 310014, P. R. China
| | - Richard B Kaner
- Department of Chemistry and Biochemistry, Department of Materials Science and Engineering, and California NanoSystems Institute, University of California, Los Angeles (UCLA), Los Angeles, CA, 90095, USA
| | - Mir F Mousavi
- Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, 14117-13116, Iran
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10
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Tyurikova IA, Alexandrov SE, Tyurikov KS, Kirilenko DA, Speshilova AB, Shakhmin AL. Fast and Controllable Synthesis of Core-Shell Fe 3O 4-C Nanoparticles by Aerosol CVD. ACS OMEGA 2020; 5:8146-8150. [PMID: 32309724 PMCID: PMC7161060 DOI: 10.1021/acsomega.0c00392] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 03/18/2020] [Indexed: 05/30/2023]
Abstract
A method for simple and fast (30-60 s) synthesis of spherical "Fe3O4 core-carbon shell" structures by atmospheric pressure aerosol pyrolysis of benzoic acid in dimethylformamide solutions containing dispersed Fe3O4 nanoparticles is described. It has been experimentally shown that it is possible to control both the size of the core-shell particles and the size of Fe3O4 grains and their amount in the particle core by the variation of benzoic acid concentration in solution and using pre-stabilized by mannitol iron oxide nanoparticles. It has been found that particles with an average size of 250-350 nm are formed at the concentration of benzoic acid in the range 0.5-1 mol/L. At a concentration of about 1 mol/L, preliminary stabilization of iron oxide nanoparticles by mannitol with a size of about 180 nm is performed.
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Affiliation(s)
- Irina A. Tyurikova
- Peter
the Great Saint Petersburg Polytechnic University, Polytechnicheskaya, 29, Saint-Petersburg 195251, Russia
| | - Sergey E. Alexandrov
- Peter
the Great Saint Petersburg Polytechnic University, Polytechnicheskaya, 29, Saint-Petersburg 195251, Russia
| | - Kirill S. Tyurikov
- Peter
the Great Saint Petersburg Polytechnic University, Polytechnicheskaya, 29, Saint-Petersburg 195251, Russia
| | - Demid A. Kirilenko
- Ioffe
Institute, Polytechnicheskaya,
26, Saint-Petersburg 194021, Russia
| | - Anastasiya B. Speshilova
- Peter
the Great Saint Petersburg Polytechnic University, Polytechnicheskaya, 29, Saint-Petersburg 195251, Russia
| | - Alexander L. Shakhmin
- Peter
the Great Saint Petersburg Polytechnic University, Polytechnicheskaya, 29, Saint-Petersburg 195251, Russia
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11
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Perovskite Structure Associated with Precious Metals: Influence on Heterogenous Catalytic Process. Catalysts 2019. [DOI: 10.3390/catal9090721] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
The use of perovskite-based materials and their derivatives can have an important role in the heterogeneous catalytic field based on photochemical processes. Photochemical reactions have a great potential to solve environmental damage issues. The presence of precious metals in the perovskite structure (i.e., Ag, Au, or Pt) may improve its efficiency significantly. The precious metal may comprise the perovskite lattice as well as form a heterostructure with it. The efficiency of catalytic materials is directly related to processing conditions. Based on this, this review will address the use of perovskite materials combined with precious metal as well as their processing methods for the use in catalyzed reactions.
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12
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Gasparotto A, Maccato C, Carraro G, Sada C, Štangar UL, Alessi B, Rocks C, Mariotti D, La Porta A, Altantzis T, Barreca D. Surface Functionalization of Grown-on-Tip ZnO Nanopyramids: From Fabrication to Light-Triggered Applications. ACS APPLIED MATERIALS & INTERFACES 2019; 11:15881-15890. [PMID: 30998315 DOI: 10.1021/acsami.8b22744] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We report on a combined chemical vapor deposition (CVD)/radio frequency (RF) sputtering synthetic strategy for the controlled surface modification of ZnO nanostructures by Ti-containing species. Specifically, the proposed approach consists in the CVD of grown-on-tip ZnO nanopyramids, followed by titanium RF sputtering under mild conditions. The results obtained by a thorough characterization demonstrate the successful ZnO surface functionalization with dispersed Ti-containing species in low amounts. This phenomenon, in turn, yields a remarkable enhancement of photoactivated superhydrophilic behavior, self-cleaning ability, and photocatalytic performances in comparison to bare ZnO. The reasons accounting for such an improvement are unravelled by a multitechnique analysis, elucidating the interplay between material chemico-physical properties and the corresponding functional behavior. Overall, the proposed strategy stands as an amenable tool for the mastering of semiconductor-based functional nanoarchitectures through ad hoc engineering of the system surface.
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Affiliation(s)
| | | | | | | | - Urška Lavrenčič Štangar
- Faculty of Chemistry and Chemical Technology , University of Ljubljana , 1000 Ljubljana , Slovenia
- Laboratory for Environmental and Life Sciences , University of Nova Gorica , 5000 Nova Gorica , Slovenia
| | - Bruno Alessi
- Nanotechnology & Integrated Bio-Engineering Centre (NIBEC) , Ulster University , Newtownabbey BT37 0QB , U.K
| | - Conor Rocks
- Nanotechnology & Integrated Bio-Engineering Centre (NIBEC) , Ulster University , Newtownabbey BT37 0QB , U.K
| | - Davide Mariotti
- Nanotechnology & Integrated Bio-Engineering Centre (NIBEC) , Ulster University , Newtownabbey BT37 0QB , U.K
| | | | | | - Davide Barreca
- CNR-ICMATE and INSTM, Department of Chemical Sciences , Padova University , 35131 Padova , Italy
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13
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14
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Facile synthesis of Bi2S3 nanosheet/Zr:Fe2O3 nanorod heterojunction: Effect of Ag interlayer on the change transport and photoelectrochemical stability. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2018.10.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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15
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Sharma P, Jang J, Lee JS. Key Strategies to Advance the Photoelectrochemical Water Splitting Performance of α‐Fe2O3Photoanode. ChemCatChem 2018. [DOI: 10.1002/cctc.201801187] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Pankaj Sharma
- Department of Energy Engineering School of Energy and Chemical EngineeringUlsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of Korea
| | - Ji‐Wook Jang
- Department of Energy Engineering School of Energy and Chemical EngineeringUlsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of Korea
| | - Jae Sung Lee
- Department of Energy Engineering School of Energy and Chemical EngineeringUlsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of Korea
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16
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Avila JR, Peters AW, Li Z, Ortuño MA, Martinson ABF, Cramer CJ, Hupp JT, Farha OK. Atomic layer deposition of Cu(i) oxide films using Cu(ii) bis(dimethylamino-2-propoxide) and water. Dalton Trans 2018; 46:5790-5795. [PMID: 28406498 DOI: 10.1039/c6dt02572b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
To grow films of Cu2O, bis-(dimethylamino-2-propoxide)Cu(ii), or Cu(dmap), is used as an atomic layer deposition precursor using only water vapor as a co-reactant. Between 110 and 175 °C, a growth rate of 0.12 ± 0.02 Å per cycle was measured using an in situ quartz crystal microbalance (QCM). X-ray photoelectron spectroscopy (XPS) confirms the growth of metal-oxide films featuring Cu(i).
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Affiliation(s)
- J R Avila
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA.
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17
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Construction of hierarchical FeCo2O4@MnO2 core-shell nanostructures on carbon fibers for high-performance asymmetric supercapacitor. J Colloid Interface Sci 2018; 512:419-427. [DOI: 10.1016/j.jcis.2017.09.093] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 09/16/2017] [Accepted: 09/24/2017] [Indexed: 11/18/2022]
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18
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Park JW, Subramanian A, Mahadik MA, Lee SY, Choi SH, Jang JS. Insights into the enhanced photoelectrochemical performance of hydrothermally controlled hematite nanostructures for proficient solar water oxidation. Dalton Trans 2018; 47:4076-4086. [DOI: 10.1039/c7dt04536k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A controlled hydrothermal reaction time showed an improvement in the PEC performance of 1D α-Fe2O3 nanorods due to an optimum aspect ratio and Sn4+ diffusion.
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Affiliation(s)
- Jin Woo Park
- Division of Biotechnology
- Safety
- Environment and Life Science Institute
- College of Environmental and Bioresource Sciences
- Chonbuk National University
| | - Arunprabaharan Subramanian
- Division of Biotechnology
- Safety
- Environment and Life Science Institute
- College of Environmental and Bioresource Sciences
- Chonbuk National University
| | - Mahadeo A. Mahadik
- Division of Biotechnology
- Safety
- Environment and Life Science Institute
- College of Environmental and Bioresource Sciences
- Chonbuk National University
| | - Su Yong Lee
- Pohang Accelerator Laboratory (PAL)
- Pohang University of Science and Technology (POSTECH)
- Pohang 37673
- Republic of Korea
| | - Sun Hee Choi
- Pohang Accelerator Laboratory (PAL)
- Pohang University of Science and Technology (POSTECH)
- Pohang 37673
- Republic of Korea
| | - Jum Suk Jang
- Division of Biotechnology
- Safety
- Environment and Life Science Institute
- College of Environmental and Bioresource Sciences
- Chonbuk National University
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19
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Morphology-controlled synthesis of Ti-doped α-Fe2O3 nanorod arrays as an efficient photoanode for photoelectrochemical applications. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3234-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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The electrochemistry of iron oxide thin films nanostructured by high ion flux plasma exposure. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.11.117] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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21
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Sreedhar A, Jung H, Kwon JH, Yi J, Sohn Y, Gwag JS. Novel composite ZnO/TiO2 thin film photoanodes for enhanced visible-light-driven photoelectrochemical water splitting activity. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.09.045] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Haschke S, Pankin D, Petrov Y, Bochmann S, Manshina A, Bachmann J. Design Rules for Oxygen Evolution Catalysis at Porous Iron Oxide Electrodes: A 1000-Fold Current Density Increase. CHEMSUSCHEM 2017; 10:3644-3651. [PMID: 28745440 DOI: 10.1002/cssc.201701068] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 07/11/2017] [Indexed: 06/07/2023]
Abstract
Nanotubular iron(III) oxide electrodes are optimized for catalytic efficiency in the water oxidation reaction at neutral pH. The nanostructured electrodes are prepared from anodic alumina templates, which are coated with Fe2 O3 by atomic layer deposition. Scanning helium ion microscopy, X-ray diffraction, and Raman spectroscopy are used to characterize the morphologies and phases of samples submitted to various treatments. These methods demonstrate the contrasting effects of thermal annealing and electrochemical treatment. The electrochemical performances of the corresponding electrodes under dark conditions are quantified by steady-state electrolysis and electrochemical impedance spectroscopy. A rough and amorphous Fe2 O3 with phosphate incorporation is critical for the optimization of the water oxidation reaction. For the ideal pore length of 17 μm, the maximum catalytic turnover is reached with an effective current density of 140 μA cm-2 at an applied overpotential of 0.49 V.
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Affiliation(s)
- Sandra Haschke
- Friedrich-Alexander University Erlangen-Nürnberg, Department of Chemistry and Pharmacy, Egerlandstrasse 1, 91058, Erlangen, Germany
| | - Dmitrii Pankin
- Saint-Petersburg State University, Center for Optical and Laser Materials Research, Uljanovskaya 5, 198504, St. Petersburg, Russia
| | - Yuri Petrov
- Saint-Petersburg State University, Interdisciplinary Resource Center for Nanotechnology, Uljanovskaya 1, 198504, St. Petersburg, Russia
| | - Sebastian Bochmann
- Friedrich-Alexander University Erlangen-Nürnberg, Department of Chemistry and Pharmacy, Egerlandstrasse 1, 91058, Erlangen, Germany
| | - Alina Manshina
- Saint-Petersburg State University, Institute of Chemistry, Universitetskii pr. 26, 198504, St. Petersburg, Russia
| | - Julien Bachmann
- Friedrich-Alexander University Erlangen-Nürnberg, Department of Chemistry and Pharmacy, Egerlandstrasse 1, 91058, Erlangen, Germany
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23
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Singh AP, Saini N, Mehta BR. Enhanced Photoelectrochemical Performance of Hydrogen Treated Hematite Thin Films Decorated with a Thin Akaganéite (β-FeOOH) Layer. ChemistrySelect 2017. [DOI: 10.1002/slct.201601356] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Aadesh P Singh
- Department of Physics; Indian Institute of Technology, Hauz Khas; New Delhi 110016 India
| | - Nishant Saini
- Department of Physics; Indian Institute of Technology, Hauz Khas; New Delhi 110016 India
| | - Bodh R Mehta
- Department of Physics; Indian Institute of Technology, Hauz Khas; New Delhi 110016 India
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24
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Encina ER, Passarelli N, Coronado EA. Plasmon enhanced light absorption in aluminium@Hematite core shell hybrid nanocylinders: the critical role of length. RSC Adv 2017. [DOI: 10.1039/c6ra27594j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The absorbed photon flux in cylindrical α-Fe2O3 shells can be enhanced by filling it with an Al core and tailoring its length.
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Affiliation(s)
- Ezequiel R. Encina
- INFIQC
- UNC
- CONICET
- Departamento de Fisicoquímica
- Facultad de Ciencias Químicas
| | - Nicolás Passarelli
- INFIQC
- UNC
- CONICET
- Departamento de Fisicoquímica
- Facultad de Ciencias Químicas
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25
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Barreca D, Carraro G, Gasparotto A, Maccato C, Sada C, Bontempi E, Brisotto M, Pliekhova O, Štangar UL. Novel two-step vapor-phase synthesis of UV-Vis light active Fe 2O 3/WO 3 nanocomposites for phenol degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:20350-20359. [PMID: 27449018 DOI: 10.1007/s11356-016-7226-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 07/11/2016] [Indexed: 06/06/2023]
Abstract
Supported Fe2O3/WO3 nanocomposites were fabricated by an original vapor phase approach, involving the chemical vapor deposition (CVD) of Fe2O3 on Ti sheets and the subsequent radio frequency (RF)-sputtering of WO3. Particular attention was dedicated to the control of the W/Fe ratio, in order to tailor the composition of the resulting materials. The target systems were analyzed by the joint use of complementary techniques, that is, X-ray diffraction (XRD), field emission-scanning electron microscopy (FE-SEM), atomic force microscopy (AFM), energy dispersive X-ray spectroscopy (EDXS), X-ray photoelectron spectroscopy (XPS), secondary ion mass spectrometry (SIMS), and optical absorption spectroscopy. The results showed the uniform decoration of α-Fe2O3 (hematite) globular particles by tiny WO3 aggregates, whose content could be controlled by modulations of the sole sputtering time. The photocatalytic degradation of phenol in the liquid phase was selected as a test reaction for a preliminary investigation of the system behavior in wastewater treatment applications. The system activity under both UV and Vis light illumination may open doors for further material optimization in view of real-world end-uses.
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Affiliation(s)
- Davide Barreca
- CNR-ICMATE, Department of Chemistry, Padova University and INSTM, 35131, Padova, Italy.
| | - Giorgio Carraro
- Department of Chemistry, Padova University and INSTM, 35131, Padova, Italy
| | - Alberto Gasparotto
- Department of Chemistry, Padova University and INSTM, 35131, Padova, Italy
| | - Chiara Maccato
- Department of Chemistry, Padova University and INSTM, 35131, Padova, Italy
| | - Cinzia Sada
- Department of Physics and Astonomy, Padova University and INSTM, 35131, Padova, Italy
| | - Elza Bontempi
- Chemistry for Technologies Laboratory, Brescia University, 25123, Brescia, Italy
| | - Mariangela Brisotto
- Chemistry for Technologies Laboratory, Brescia University, 25123, Brescia, Italy
| | - Olena Pliekhova
- Laboratory for Environmental Research, Nova Gorica University, 5001, Nova Gorica, Slovenia
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26
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Yang KY, Hsu HW, Hsieh HY, Chang WC, Li MC, Lin PC, Lee CC, Liu CL, Lee TC. Facile Spray Deposition of Photocatalytic ZnO/Cu-In-Zn-S Heterostructured Composite Thin Film. ChemistrySelect 2016. [DOI: 10.1002/slct.201600855] [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)
- Kai-Yu Yang
- Department of Chemical and Materials Engineering; National Central University; Taoyuan 32001 Taiwan
| | - Han-Wen Hsu
- Department of Chemical and Materials Engineering; National Central University; Taoyuan 32001 Taiwan
| | - Hsin-Yi Hsieh
- Department of Chemical and Materials Engineering; National Central University; Taoyuan 32001 Taiwan
| | - Wei-Chieh Chang
- Department of Chemical and Materials Engineering; National Central University; Taoyuan 32001 Taiwan
| | - Meng-Chi Li
- Thin Film Technology Center/ Department of Optics and Photons; National Central University; Taoyuan 32001 Taiwan
| | - Po-Chang Lin
- National Synchrotron Radiation Research Center; Hsinchu 30076 Taiwan
| | - Cheng-Chung Lee
- Thin Film Technology Center/ Department of Optics and Photons; National Central University; Taoyuan 32001 Taiwan
| | - Cheng-Liang Liu
- Department of Chemical and Materials Engineering; National Central University; Taoyuan 32001 Taiwan
| | - Tai-Chou Lee
- Department of Chemical and Materials Engineering; National Central University; Taoyuan 32001 Taiwan
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27
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Li Y, Zhang L, Liu R, Cao Z, Sun X, Liu X, Luo J. WO3@α-Fe2O3Heterojunction Arrays with Improved Photoelectrochemical Behavior for Neutral pH Water Splitting. ChemCatChem 2016. [DOI: 10.1002/cctc.201600475] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yuan Li
- Center for Electron Microscopy, Institute for New Energy Materials & Low-Carbon Technologies, Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science and Engineering; Tianjin University of Technology; Tianjin 300384 P.R. China
| | - Lihan Zhang
- Center for Electron Microscopy, Institute for New Energy Materials & Low-Carbon Technologies, Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science and Engineering; Tianjin University of Technology; Tianjin 300384 P.R. China
| | - Ruirui Liu
- Center for Electron Microscopy, Institute for New Energy Materials & Low-Carbon Technologies, Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science and Engineering; Tianjin University of Technology; Tianjin 300384 P.R. China
| | - Zhen Cao
- Center for Electron Microscopy, Institute for New Energy Materials & Low-Carbon Technologies, Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science and Engineering; Tianjin University of Technology; Tianjin 300384 P.R. China
| | - Xiaoming Sun
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Xijun Liu
- Center for Electron Microscopy, Institute for New Energy Materials & Low-Carbon Technologies, Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science and Engineering; Tianjin University of Technology; Tianjin 300384 P.R. China
| | - Jun Luo
- Center for Electron Microscopy, Institute for New Energy Materials & Low-Carbon Technologies, Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science and Engineering; Tianjin University of Technology; Tianjin 300384 P.R. China
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28
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Ji M, Cai J, Ma Y, Qi L. Controlled Growth of Ferrihydrite Branched Nanosheet Arrays and Their Transformation to Hematite Nanosheet Arrays for Photoelectrochemical Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2016; 8:3651-3660. [PMID: 26517010 DOI: 10.1021/acsami.5b08116] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The morphology engineering represents an alternative route toward efficient hematite photoanodes for photoelectrochemical (PEC) water splitting without changing the chemical composition. In this work, a facile and mild solvothermal synthesis of unique ferrihydrite branched nanosheet arrays vertically aligned on FTO substrate was achieved at around 100 °C. The hierarchical branched ferrihydrite nanosheet arrays consisted of tiny branches up to 40 nm in length grown almost vertically on stem nanosheets ∼10 nm in thickness. Moreover, the variation of the morphology of the ferrihydrite nanostructures from bare nanosheet arrays through branched nanosheet arrays to dense branched structures can be readily achieved through the regulation of the reaction time and temperature. The obtained ferrihydrite branched nanosheet arrays can be in situ transformed into α-Fe2O3 nanosheet arrays with small surface protrusions upon annealing at 550 °C. After a simple postgrowth Ti-doping process, the resulting Ti-doped α-Fe2O3 nanosheet arrays showed a good PEC performance for water splitting with a photocurrent density of 1.79 mA/cm(2) at 1.6 V vs RHE under AM 1.5G illumination (100 mW/cm(2)). In contrast, the Ti-doped irregular aggregates of the α-Fe2O3 nanograins transformed from dense ferrihydrite branched structures exhibited a much lower photocurrent density (0.41 mA/cm(2) at 1.6 V vs RHE), demonstrating the important influence of the morphology of α-Fe2O3 photoanodes on the PEC performance.
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Affiliation(s)
- Mei Ji
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry, Peking University , Beijing 100871, China
| | - Jinguang Cai
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry, Peking University , Beijing 100871, China
| | - Yurong Ma
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry, Peking University , Beijing 100871, China
| | - Limin Qi
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry, Peking University , Beijing 100871, China
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29
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Masudy-Panah S, Siavash Moakhar R, Chua CS, Tan HR, Wong TI, Chi D, Dalapati GK. Nanocrystal Engineering of Sputter-Grown CuO Photocathode for Visible-Light-Driven Electrochemical Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2016; 8:1206-13. [PMID: 26694248 DOI: 10.1021/acsami.5b09613] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Cupric oxide (CuO) thin film was sputtered onto fluorine-doped tin oxide (FTO) coated glass substrate and incorporated into a photoelectrochemical (PEC) cell as a photocathode. Through in situ nanocrystal engineering, sputtered CuO film shows an improvement in its stability and photocurrent generation capability. For the same CuO film thickness (150 nm), films deposited at a sputtering power of 300 W exhibit a photocurrent of ∼0.92 mAcm(-2) (0 V vs RHE), which is significantly higher than those deposited at 30 W (∼0.58 mAcm(-2)). By increasing the film thickness to 500 nm, the photocurrent is further enhanced to 2.5 mAcm(-2), which represents a photocurrent conversion efficiency of 3.1%. Systematic characterization using Raman, XRD, and HR-TEM reveals that the high sputtering power results in an improvement in CuO film crystallinity, which enhances its charge transport property and, hence, its photocurrent generation capabilities.
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Affiliation(s)
- Saeid Masudy-Panah
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way; Innovis, #08-03, Singapore 138634
| | - Roozbeh Siavash Moakhar
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way; Innovis, #08-03, Singapore 138634
| | - Chin Sheng Chua
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way; Innovis, #08-03, Singapore 138634
| | - Hui Ru Tan
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way; Innovis, #08-03, Singapore 138634
| | - Ten It Wong
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way; Innovis, #08-03, Singapore 138634
| | - Dongzhi Chi
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way; Innovis, #08-03, Singapore 138634
| | - Goutam Kumar Dalapati
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way; Innovis, #08-03, Singapore 138634
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30
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Balbuena J, Carraro G, Cruz M, Gasparotto A, Maccato C, Pastor A, Sada C, Barreca D, Sánchez L. Advances in photocatalytic NOx abatement through the use of Fe2O3/TiO2 nanocomposites. RSC Adv 2016. [DOI: 10.1039/c6ra15958c] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Supported Fe2O3/TiO2 nanocomposites were prepared for the first time by a plasma-assisted route and successfully tested in photocatalytic NOx abatement driven by solar illumination.
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Affiliation(s)
- José Balbuena
- Department of Inorganic Chemistry and Engineering Chemistry
- Córdoba University
- 14071 Córdoba
- Spain
| | - Giorgio Carraro
- Department of Chemistry
- Padova University and INSTM
- 35131 Padova
- Italy
| | - Manuel Cruz
- Department of Inorganic Chemistry and Engineering Chemistry
- Córdoba University
- 14071 Córdoba
- Spain
| | | | - Chiara Maccato
- Department of Chemistry
- Padova University and INSTM
- 35131 Padova
- Italy
| | - Adrián Pastor
- Department of Inorganic Chemistry and Engineering Chemistry
- Córdoba University
- 14071 Córdoba
- Spain
| | - Cinzia Sada
- Department of Physics and Astronomy
- Padova University and INSTM
- 35131 Padova
- Italy
| | - Davide Barreca
- ICMATE-CNR and INSTM
- Department of Chemistry
- Padova University and INSTM
- 35131 Padova
- Italy
| | - Luis Sánchez
- Department of Inorganic Chemistry and Engineering Chemistry
- Córdoba University
- 14071 Córdoba
- Spain
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31
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Basnet P, Zhao Y. Tuning the CuxO nanorod composition for efficient visible light induced photocatalysis. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01464f] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Single and mixed phase Cu2O/CuO nanorod arrays prepared by thermal oxidation were tested for photocatalysis and photoelectrochemical properties.
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Affiliation(s)
- Pradip Basnet
- Department of Physics and Astronomy, and Nanoscale Science and Engineering Center
- University of Georgia
- Athens
- USA
| | - Yiping Zhao
- Department of Physics and Astronomy, and Nanoscale Science and Engineering Center
- University of Georgia
- Athens
- USA
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32
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Carraro G, Gasparotto A, Maccato C, Bontempi E, Barreca D. PECVD ofHematiteNanoblades and Nanocolumns: Synthesis, Characterization, and Growth Model. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/cvde.201507182] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Giorgio Carraro
- Department of Chemistry; Padova University and INSTM; via Marzolo 1 35131 Padova Italy
| | - Alberto Gasparotto
- Department of Chemistry; Padova University and INSTM; via Marzolo 1 35131 Padova Italy
| | - Chiara Maccato
- Department of Chemistry; Padova University and INSTM; via Marzolo 1 35131 Padova Italy
| | - Elza Bontempi
- Chemistry for Technologies Laboratory; Brescia University; via Branze 38 25123 Brescia Italy
| | - Davide Barreca
- IENI-CNR and INSTM, Department of Chemistry; Padova University; via Marzolo 1 35131 Padova Italy
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33
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Li FT, Ran J, Jaroniec M, Qiao SZ. Solution combustion synthesis of metal oxide nanomaterials for energy storage and conversion. NANOSCALE 2015; 7:17590-610. [PMID: 26457657 DOI: 10.1039/c5nr05299h] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The design and synthesis of metal oxide nanomaterials is one of the key steps for achieving highly efficient energy conversion and storage on an industrial scale. Solution combustion synthesis (SCS) is a time- and energy-saving method as compared with other routes, especially for the preparation of complex oxides which can be easily adapted for scale-up applications. This review summarizes the synthesis of various metal oxide nanomaterials and their applications for energy conversion and storage, including lithium-ion batteries, supercapacitors, hydrogen and methane production, fuel cells and solar cells. In particular, some novel concepts such as reverse support combustion, self-combustion of ionic liquids, and creation of oxygen vacancies are presented. SCS has some unique advantages such as its capability for in situ doping of oxides and construction of heterojunctions. The well-developed porosity and large specific surface area caused by gas evolution during the combustion process endow the resulting materials with exceptional properties. The relationship between the structural properties of the metal oxides studied and their performance is discussed. Finally, the conclusions and perspectives are briefly presented.
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Affiliation(s)
- Fa-tang Li
- College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China and School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
| | - Jingrun Ran
- School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
| | - Mietek Jaroniec
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44240, USA
| | - Shi Zhang Qiao
- School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
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34
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Warwick MEA, Barreca D, Bontempi E, Carraro G, Gasparotto A, Maccato C, Kaunisto K, Ruoko TP, Lemmetyinen H, Sada C, Gönüllü Y, Mathur S. Pt-functionalized Fe2O3 photoanodes for solar water splitting: the role of hematite nano-organization and the platinum redox state. Phys Chem Chem Phys 2015; 17:12899-907. [DOI: 10.1039/c5cp01636c] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pt/α-Fe2O3 nanocomposite photoanodes for solar water splitting are synthesized and deeply investigated to unravel the role of hematite nano-organization and the platinum redox state in photoelectrochemical performances.
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