1
|
Li S, Mo QL, Xiao Y, Xiao FX. Maneuvering cuprous oxide-based photocathodes for solar-to-fuel conversion. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
2
|
Yu X, Tanaka Y, Kakiuchi T, Ishida T, Saitoh K, Itoigawa F, Kuwahara M, Ono S. Static Hydrophobic Cuprous Oxide Surface Fabricated via One-Step Laser-Induced Oxidation of a Copper Substrate. MICROMACHINES 2023; 14:185. [PMID: 36677246 PMCID: PMC9866595 DOI: 10.3390/mi14010185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/29/2022] [Accepted: 01/09/2023] [Indexed: 06/17/2023]
Abstract
In this study, we developed a one-step method for fabricating hydrophobic surfaces on copper (Cu) substrates. Cuprous oxide (Cu2O) with low free energy was successfully formed after low-fluence laser direct irradiation. The formation of Cu2O enhanced the hydrophobicity of the Cu substrate surface, and the contact angle linearly increased with the proportion of Cu2O. The Cu2O fabricated by low-fluence laser treatment showed the same crystal plane orientation as the pristine Cu substrate, implying an epitaxial growth of Cu2O on a Cu substrate.
Collapse
Affiliation(s)
- Xi Yu
- Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8603, Japan
| | - Yoshiki Tanaka
- Department of Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
| | - Tomoki Kakiuchi
- Department of Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
| | - Takafumi Ishida
- Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8603, Japan
- Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Koh Saitoh
- Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8603, Japan
- Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Fumihiro Itoigawa
- Department of Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
| | - Makoto Kuwahara
- Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8603, Japan
- Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Shingo Ono
- Department of Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
| |
Collapse
|
3
|
Syrek K, Jażdżewska M, Kozieł M, Zaraska L. Photoelectrochemical activity of Cu2O electrochemically deposited at different temperatures. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
4
|
Pawar SA, Poojari SV, A VK. Cu2O‐CD nanosuperstructures as a BiomimeticCatalyst for Oxidation of Benzylicsp3 C–H bonds and SecondaryAmines using Molecular Oxygen:First Total Synthesis ofproposed SwerilactoneO. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Vijay Kumar A
- Institute of Chemical Technology Department of Chemistry C304,Advance CentreDepartment of Chemistry, Institute of Chemical TechnologyNP Marg,Matunga 400019 Mumbai INDIA
| |
Collapse
|
5
|
Patwary MAM, Hossain MA, Ghos BC, Chakrabarty J, Haque SR, Rupa SA, Uddin J, Tanaka T. Copper oxide nanostructured thin films processed by SILAR for optoelectronic applications. RSC Adv 2022; 12:32853-32884. [DOI: 10.1039/d2ra06303d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 11/09/2022] [Indexed: 11/17/2022] Open
Abstract
CuxO nanostructured thin films are potentially appealing materials for many applications. The deposition technique, SILAR, explored in this paper offers many advantages.
Collapse
Affiliation(s)
- Md Abdul Majed Patwary
- Department of Chemistry, Physical Chemistry Research Laboratory, Comilla University, Cumilla 3506, Bangladesh
- Department of Electrical and Electronic Engineering, Saga University, Saga 840-8502, Japan
| | - Md Alauddin Hossain
- Department of Chemistry, Physical Chemistry Research Laboratory, Comilla University, Cumilla 3506, Bangladesh
| | - Bijoy Chandra Ghos
- Department of Chemistry, Physical Chemistry Research Laboratory, Comilla University, Cumilla 3506, Bangladesh
| | - Joy Chakrabarty
- Department of Chemistry, Physical Chemistry Research Laboratory, Comilla University, Cumilla 3506, Bangladesh
| | | | - Sharmin Akther Rupa
- Department of Chemistry, Physical Chemistry Research Laboratory, Comilla University, Cumilla 3506, Bangladesh
| | - Jamal Uddin
- Center for Nanotechnology, Department of Natural Sciences, Coppin State University, Baltimore, MD, USA
| | - Tooru Tanaka
- Department of Electrical and Electronic Engineering, Saga University, Saga 840-8502, Japan
| |
Collapse
|
6
|
Wang J, Zhang S, Li X, Li X, Cai P, Mu Y, Sun M, Yin G, Dong S, Chen A. Synthesis of chip-shaped Te film for enhanced photocatalytic activity under visible light irradiation. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
7
|
Mojtahedi S, Serrapede M, Lamberti A, Pirri CF, Heydari-Bafrooei E, Molaei M, Karimipour M. A facile, safe and controllable morphology synthesis of rGO_Cu2O nanocomposite as a binder-free electrode for electrochemical capacitors. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138856] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
8
|
Chen YC, Dong PH, Hsu YK. Defective Indium Tin Oxide Forms an Ohmic Back Contact to an n-Type Cu 2O Photoanode to Accelerate Charge-Transfer Kinetics for Enhanced Low-Bias Photoelectrochemical Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2021; 13:38375-38383. [PMID: 34357762 DOI: 10.1021/acsami.1c10679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In significant contrast to the tremendous research efforts mostly geared to addressing the severe hole accumulation at the back contact of a p-type Cu2O photocathode with a fluorine-doped tin oxide (FTO) substrate, sluggish electron transfer from an n-type Cu2O photoanode to a tin-doped indium oxide (ITO) substrate has been largely overlooked. To tackle this issue that has been reported to largely limit the photoelectrochemical performance of n-type Cu2O photoanodes at a low bias, the present contribution puts forward a strategy to introduce oxygen vacancies into the ITO substrate via an unprecedented yet facile electrochemical approach. Such defect engineering turns out to decrease the work function of the ITO substrate, which in turn approaches the conduction band extremum of n-Cu2O to highly efficiently extract the photoexcited electrons therein. Moreover, the dendritic growth of n-Cu2O is, in the meantime, interfered by the oxygen vacancy manifested as pinholes distributed over the ITO substrate, which is thereby crystallized into several small grains with augmented surface roughness that is in favor of the injection of the photoexcited hole into the electrolyte. Such facile interfacial charge-transfer kinetics leads to a significant cathodic shift amounting to 200 mV of the onset potential to 0 VAg/AgCl, whereat the n-Cu2O photoanode deposited on the defective ITO substrate delivers the maximum photocurrent density reaching 2 mA cm-2 and, more significantly, its applied bias photon-to-current efficiency (ABPE) reaches 1.1%, which is among the highest performance reported to date for a variety of state-of-the-art metal oxide-based photoanodes in the literature.
Collapse
Affiliation(s)
- Ying-Chu Chen
- China-UK Low Carbon College, Shanghai Jiao Tong University, No. 3, Yinlian Road, Lingang, Shanghai 201306, People's Republic of China
| | - Pin-Han Dong
- Department of Opto-Electronic Engineering, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Road, Shoufeng, Hualien 97401, Taiwan
| | - Yu-Kuei Hsu
- Department of Opto-Electronic Engineering, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Road, Shoufeng, Hualien 97401, Taiwan
| |
Collapse
|
9
|
Chung WA, Wu CJ, Hung PS, Chou SC, Guo WQ, Wu PW. Templated fabrication of three-dimensional ordered macroporous Cu2O/Ni structure for glucose sensing. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.01.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
10
|
Qiu P, Xu S, Zhang K, Jiang Z, Gong D, Chen C. Influence of deposition potential on the photoelectrochemical cathodic protection behavior of n-type Cu@Cu2O films. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.114984] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
11
|
Ahn J, Lee S, Kim JH, Wajahat M, Sim HH, Bae J, Pyo J, Jahandar M, Lim DC, Seol SK. 3D-printed Cu 2O photoelectrodes for photoelectrochemical water splitting. NANOSCALE ADVANCES 2020; 2:5600-5606. [PMID: 36133885 PMCID: PMC9419027 DOI: 10.1039/d0na00512f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 08/23/2020] [Indexed: 06/16/2023]
Abstract
Photoelectrochemical (PEC) water splitting is an alternative to fossil fuel combustion involving the generation of renewable hydrogen without environmental pollution or greenhouse gas emissions. Cuprous oxide (Cu2O) is a promising semiconducting material for the simple reduction of hydrogen from water, in which the conduction band edge is slightly negative compared to the water reduction potential. However, the solar-to-hydrogen conversion efficiency of Cu2O is lower than the theoretical value due to a short carrier-diffusion length under the effective light absorption depth. Thus, increasing light absorption in the electrode-electrolyte interfacial layer of a Cu2O photoelectrode can enhance PEC performance. In this study, a Cu2O 3D photoelectrode comprised of pyramid arrays was fabricated using a two-step method involving direct-ink-writing of graphene structures. This was followed by the electrodeposition of a Cu current-collecting layer and a p-n homojunction Cu2O photocatalyst layer onto the printed structures. The performance for PEC water splitting was enhanced by increasing the total light absorption area (A a) of the photoelectrode via controlling the electrode topography. The 3D photoelectrode (A a = 3.2 cm2) printed on the substrate area of 1.0 cm2 exhibited a photocurrent (I ph) of -3.01 mA at 0.02 V (vs. RHE), which is approximately three times higher than that of a planar photoelectrode with an A a = 1.0 cm2 (I ph = -0.91 mA). Our 3D printing strategy provides a flexible approach for the design and the fabrication of highly efficient PEC photoelectrodes.
Collapse
Affiliation(s)
- Jinhyuck Ahn
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
- Electrical Functionality Material Engineering, University of Science and Technology (UST) Changwon-si Gyeongsangnam-do 51543 Republic of Korea
| | - Sanghyeon Lee
- Department of Mechanical Engineering, The University of Hong Kong Pokfulam Road Hong Kong China
| | - Jung Hyun Kim
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
- Electrical Functionality Material Engineering, University of Science and Technology (UST) Changwon-si Gyeongsangnam-do 51543 Republic of Korea
| | - Muhammad Wajahat
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
- Electrical Functionality Material Engineering, University of Science and Technology (UST) Changwon-si Gyeongsangnam-do 51543 Republic of Korea
| | - Ho Hyung Sim
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
- Electrical Functionality Material Engineering, University of Science and Technology (UST) Changwon-si Gyeongsangnam-do 51543 Republic of Korea
| | - Jongcheon Bae
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
- School of Materials Science and Engineering, Pusan National University Busan Republic of Korea
| | - Jaeyeon Pyo
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
| | - Muhammad Jahandar
- Surface Technology Division, Korea Institute of Materials Science (KIMS) Changwon-si Gyeongsangnam-do 51508 Republic of Korea
| | - Dong Chan Lim
- Surface Technology Division, Korea Institute of Materials Science (KIMS) Changwon-si Gyeongsangnam-do 51508 Republic of Korea
| | - Seung Kwon Seol
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
- Electrical Functionality Material Engineering, University of Science and Technology (UST) Changwon-si Gyeongsangnam-do 51543 Republic of Korea
| |
Collapse
|
12
|
Application of ascorbic acid in the synthesis of rGO/micro-octahedral Cu2O nanocomposites and its effect on the wide linear response range of glucose detection. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105405] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
13
|
Yilmaz M, Handoko AD, Parkin IP, Sankar G. Probing the electronic and geometric structures of photoactive electrodeposited Cu2O films by X-ray absorption spectroscopy. J Catal 2020. [DOI: 10.1016/j.jcat.2020.06.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
14
|
Chen M, Li Z, Chen L. Highly antibacterial rGO/Cu2O nanocomposite from a biomass precursor: Synthesis, performance, and mechanism. NANO MATERIALS SCIENCE 2020. [DOI: 10.1016/j.nanoms.2019.09.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
15
|
Alhumaimess MS, Essawy AA, Kamel MM, Alsohaimi IH, Hassan HMA. Biogenic-Mediated Synthesis of Mesoporous Cu 2O/CuO Nano-Architectures of Superior Catalytic Reductive towards Nitroaromatics. NANOMATERIALS 2020; 10:nano10040781. [PMID: 32325786 PMCID: PMC7221583 DOI: 10.3390/nano10040781] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/15/2020] [Accepted: 04/16/2020] [Indexed: 11/25/2022]
Abstract
Cu2O/CuO nano-architectures were prepared by biogenic-mediated synthesis using pomegranate seeds extract as the reducing/stabilizing mediator during an aqueous solution combustion process of the Cu2+ precursor. The fabricated Cu2O/CuO nanocomposite were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FESEM) and nitrogen sorption. Nitrobenzene (NB) was applied a probe to test the catalytic activities of the fabricated Cu2O/CuO nanocomposite. The results indicated that pomegranate seeds extract (PSE) manifest Cu2O/CuO NPs of tiny particle size, larger pore volume and greater surface area compared to the bulky CuO synthesized in the absence of PSE. The surface area and total pore volume of Cu2O/CuO NPs were 20.1 m2 g−1 and 0.0362 cm3 g−1, respectively. The FESEM image shows the formation of broccoli-like architecture. The fabricated Cu2O/CuO nanocomposite possesses surprising activity towards the reduction of nitro compounds in the presence of NaBH4 into amino compounds with high conversion (94%). The reduction process was performed in water as a green solvent. Over four consecutive cycles the resulting nanocomposite also exhibits outstanding stability. In addition, the resulting Cu2O/CuO nanocomposite suggested herein may encourage scientists to start preparing more cost-effective catalysts for marketing instead of complicated catalysts.
Collapse
Affiliation(s)
- Mosaed S. Alhumaimess
- Chemistry Department, College of Science, Jouf University, P.O. Box 2014, Sakaka 42421, Saudi Arabia; (A.A.E.); (M.M.K.); (H.M.A.H.)
- Correspondence: (M.S.A.); (I.H.A.)
| | - Amr A. Essawy
- Chemistry Department, College of Science, Jouf University, P.O. Box 2014, Sakaka 42421, Saudi Arabia; (A.A.E.); (M.M.K.); (H.M.A.H.)
- Chemistry Department, Faculty of Science, Fayoum University, Fayoum 63514, Egypt
| | - Mahmoud M. Kamel
- Chemistry Department, College of Science, Jouf University, P.O. Box 2014, Sakaka 42421, Saudi Arabia; (A.A.E.); (M.M.K.); (H.M.A.H.)
| | - Ibrahim Hotan Alsohaimi
- Chemistry Department, College of Science, Jouf University, P.O. Box 2014, Sakaka 42421, Saudi Arabia; (A.A.E.); (M.M.K.); (H.M.A.H.)
- Correspondence: (M.S.A.); (I.H.A.)
| | - Hassan M. A. Hassan
- Chemistry Department, College of Science, Jouf University, P.O. Box 2014, Sakaka 42421, Saudi Arabia; (A.A.E.); (M.M.K.); (H.M.A.H.)
- Department of Chemistry, Faculty of Science, Suez University, Suez 43511, Egypt
| |
Collapse
|
16
|
K Markose K, Shaji M, Bhatia S, Nair PR, Saji KJ, Antony A, Jayaraj MK. Novel Boron-Doped p-Type Cu 2O Thin Films as a Hole-Selective Contact in c-Si Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2020; 12:12972-12981. [PMID: 32083458 DOI: 10.1021/acsami.9b22581] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
p-type Cu2O thin films doped with trivalent cation boron are demonstrated for the first time as an efficient hole-selective layer for c-Si heterojunction solar cells. Cu2O and Cu2O:B films were deposited by rf magnetron sputtering, and the optical and electrical properties of the doped and undoped films were investigated. Boron doping enhanced the carrier concentration and the electrical conductivity of the Cu2O film. The band alignment of the Cu2O:B/Si heterojunction was investigated using XPS and UPS measurements. The Cu2O:B/Si interface has a valance band offset of 0.08 eV, which facilitates hole transport, and a conduction band offset of 1.35 eV, which blocks the electrons. A thin SiOx tunnel oxide interlayer was also explored as the passivation layer. The initial trials of incorporating this Cu2O:B layer as a hole transporting layer in a single heterojunction solar cell with the structure, ITO/Cu2O:B/n-Si/Ag, and a cell area of 1 cm2 yielded an open-circuit voltage of 370 mV, a short-circuit current density of 36.5 mA/cm2, and an efficiency of 5.4%. This p-type material could find potential applications in various optoelectronic applications like organic solar cells, TFTs, and LEDs.
Collapse
Affiliation(s)
- Kurias K Markose
- Department of Physics, Cochin University of Science and Technology, Kochi 682022, India
| | - Manu Shaji
- Department of Physics, Cochin University of Science and Technology, Kochi 682022, India
| | - Swasti Bhatia
- Department of Electrical Engineering, Indian Institute of Technology, Bombay, Powai, Mumbai 400076, India
| | - Pradeep R Nair
- Department of Electrical Engineering, Indian Institute of Technology, Bombay, Powai, Mumbai 400076, India
| | - Kachirayil J Saji
- International School of Photonics, Cochin University of Science and Technology, Kochi 682022, India
- Centre of Excellence in Advanced Technology, Cochin University of Science and Technology, Kochi 682022, India
- Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kochi 682022, India
| | - Aldrin Antony
- Department of Physics, Cochin University of Science and Technology, Kochi 682022, India
- Department of Electrical Engineering, Indian Institute of Technology, Bombay, Powai, Mumbai 400076, India
- NCPRE, Department of Electrical Engineering, Indian Institute of Technology, Bombay, Powai, Mumbai 400076, India
| | - Madambi K Jayaraj
- Department of Physics, Cochin University of Science and Technology, Kochi 682022, India
- Centre of Excellence in Advanced Technology, Cochin University of Science and Technology, Kochi 682022, India
- Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kochi 682022, India
| |
Collapse
|
17
|
Nanocrystal-engineered thin CuO film photocatalyst for visible-light-driven photocatalytic degradation of organic pollutant in aqueous solution. Catal Today 2020. [DOI: 10.1016/j.cattod.2018.12.019] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
18
|
Activated carbon fiber for adsorption/electrodeposition of Cu (II) and the recovery of Cu (0) by controlling the applied voltage during membrane capacitive deionization. J Colloid Interface Sci 2019; 548:160-169. [DOI: 10.1016/j.jcis.2019.04.030] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 04/08/2019] [Accepted: 04/09/2019] [Indexed: 11/19/2022]
|
19
|
Single step synthesis of rGO, copper oxide and polyaniline nanocomposites for high energy supercapacitors. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.09.033] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
20
|
Mezine Z, Kadri A, Hamadou L, Benbrahim N, Chaouchi A. Electrodeposition of copper oxides (CuxOy) from acetate bath. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.03.055] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
21
|
Masudy-Panah S, Siavash Moakhar R, Chua CS, Kushwaha A, Dalapati GK. Stable and Efficient CuO Based Photocathode through Oxygen-Rich Composition and Au-Pd Nanostructure Incorporation for Solar-Hydrogen Production. ACS APPLIED MATERIALS & INTERFACES 2017; 9:27596-27606. [PMID: 28731678 DOI: 10.1021/acsami.7b02685] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Enhancing stability against photocorrosion and improving photocurrent response are the main challenges toward the development of cupric oxide (CuO) based photocathodes for solar-driven hydrogen production. In this paper, stable and efficient CuO-photocathodes have been developed using in situ materials engineering and through gold-palladium (Au-Pd) nanoparticles deposition on the CuO surface. The CuO photocathode exhibits a photocurrent generation of ∼3 mA/cm2 at 0 V v/s RHE. Time-of-flight secondary ion mass spectrometry (TOF-SIMS) analysis and X-ray spectroscopy (XPS) confirm the formation of oxygen-rich (O-rich) CuO film which demonstrates a highly stable photocathode with retained photocurrent of ∼90% for 20 min. The influence of chemical composition on the photocathode performance and stability has been discussed in detail. In addition, O-rich CuO photocathodes deposited with Au-Pd nanostructures have shown enhanced photoelectrochemical performance. Linear scan voltammetry characteristic shows ∼25% enhancement in photocurrent after Au-Pd deposition and reaches ∼4 mA/cm2 at "0" V v/s RHE. Hydrogen evolution rate significantly depends on the elemental composition of CuO and metal nanostructure. The present work has demonstrated a stable photocathode with high photocurrent for visible-light-driven water splitting and hydrogen production.
Collapse
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
- Low Energy Electronic System (LEES), Singapore-MIT Alliance for Research and Technology (SMART) , 1 CREATE Way, #09-01/02 CREATE Tower, Singapore 138602
- Electrical and Computer Engineering, National University of Singapore , Singapore 119260
| | - 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
- Department of Materials Science and Engineering, Sharif University of Technology , Tehran 11155-9466, Iran
| | - 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
| | - Ajay Kushwaha
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634
- Discipline of Metallurgy Engineering and Materials Science, IIT Indore , Indore, Madhya Pradesh 453552, India
| | - 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
| |
Collapse
|
22
|
Achilli E, Vertova A, Visibile A, Locatelli C, Minguzzi A, Rondinini S, Ghigna P. Structure and Stability of a Copper(II) Lactate Complex in Alkaline Solution: a Case Study by Energy-Dispersive X-ray Absorption Spectroscopy. Inorg Chem 2017; 56:6982-6989. [PMID: 28558207 DOI: 10.1021/acs.inorgchem.7b00553] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Energy-dispersive X-ray absorption spectroscopy was applied, aimed at solving the problem of the structure and stability of a copper(II) lactate complex in alkaline solution, used as a precursor for the electrodeposition of Cu2O. The application of multiple scattering calculations to the simulation of the X-ray absorption near-edge structure part of the spectra allowed an accurate resolution of the structure: the copper(II) cation is surrounded by four lactate ions in a distorted tetrahedral environment, with the lactate anions acting as monodentate ligands. This results in an atomic arrangement where copper is surrounded by four oxygen atoms located at quite a short distance (ca. 1.87 Å) and four oxygen atoms located quite far apart (ca. 3.1-3.2 Å). The complex was finally found to be stable in a wide range of applied potentials.
Collapse
Affiliation(s)
- Elisabetta Achilli
- Dipartimento di Chimica, Università degli Studi di Pavia and Unita di Ricerca INSTM di Pavia , Viale Taramelli 16, 27100, Pavia, Italy
| | - Alberto Vertova
- Dipartimento di Chimica, Università degli Studi di Milano and Unita di Ricerca INSTM di Milano , Via Golgi 19, 20133, Milan, Italy
| | - Alberto Visibile
- Dipartimento di Chimica, Università degli Studi di Milano and Unita di Ricerca INSTM di Milano , Via Golgi 19, 20133, Milan, Italy
| | - Cristina Locatelli
- Dipartimento di Chimica, Università degli Studi di Milano and Unita di Ricerca INSTM di Milano , Via Golgi 19, 20133, Milan, Italy
| | - Alessandro Minguzzi
- Dipartimento di Chimica, Università degli Studi di Milano and Unita di Ricerca INSTM di Milano , Via Golgi 19, 20133, Milan, Italy
| | - Sandra Rondinini
- Dipartimento di Chimica, Università degli Studi di Milano and Unita di Ricerca INSTM di Milano , Via Golgi 19, 20133, Milan, Italy
| | - Paolo Ghigna
- Dipartimento di Chimica, Università degli Studi di Pavia and Unita di Ricerca INSTM di Pavia , Viale Taramelli 16, 27100, Pavia, Italy
| |
Collapse
|
23
|
Liu X, Sun Z, Cui S, Du P. Cuprous oxide thin film directly electrodeposited from a simple copper salt on conductive electrode for efficient oxygen evolution reaction. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2015.11.059] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
24
|
Li X, Ma Y, Yang Z, Xu S, Wei L, Huang D, Wang T, Hu N, Zhang Y. Hierarchical heterostructures based on prickly Ni nanowires/Cu2O nanoparticles with enhanced photocatalytic activity. Dalton Trans 2016; 45:7258-66. [DOI: 10.1039/c5dt04484g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metal-semiconductor-based photocatalysts show high efficiencies and catalytic activities in the photocatalysis process.
Collapse
Affiliation(s)
- Xiaolin Li
- Key Laboratory for Thin Film and Microfabrication of Ministry of Education
- Department of Micro/Nano Electronics
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Yujie Ma
- Key Laboratory for Thin Film and Microfabrication of Ministry of Education
- Department of Micro/Nano Electronics
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Zhi Yang
- Key Laboratory for Thin Film and Microfabrication of Ministry of Education
- Department of Micro/Nano Electronics
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Shusheng Xu
- Key Laboratory for Thin Film and Microfabrication of Ministry of Education
- Department of Micro/Nano Electronics
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Liangming Wei
- Key Laboratory for Thin Film and Microfabrication of Ministry of Education
- Department of Micro/Nano Electronics
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Da Huang
- Key Laboratory for Thin Film and Microfabrication of Ministry of Education
- Department of Micro/Nano Electronics
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Tao Wang
- Key Laboratory for Thin Film and Microfabrication of Ministry of Education
- Department of Micro/Nano Electronics
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Nantao Hu
- Key Laboratory for Thin Film and Microfabrication of Ministry of Education
- Department of Micro/Nano Electronics
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Yafei Zhang
- Key Laboratory for Thin Film and Microfabrication of Ministry of Education
- Department of Micro/Nano Electronics
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
| |
Collapse
|
25
|
Singh BK, Shaikh A, Badrayyana S, Mohapatra D, Dusane RO, Parida S. Nanoporous gold–copper oxide based all-solid-state micro-supercapacitors. RSC Adv 2016. [DOI: 10.1039/c6ra19744b] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Development of nanoporous gold (NPG)-based micro-supercapacitor by simple annealing–dealloying processes.
Collapse
Affiliation(s)
- Balwant Kr Singh
- Department of Metallurgical Engineering and Materials Science
- Indian Institute of Technology-Bombay
- Mumbai – 400076
- India
| | - Aasiya Shaikh
- Department of Metallurgical Engineering and Materials Science
- Indian Institute of Technology-Bombay
- Mumbai – 400076
- India
| | - Subramanya Badrayyana
- Department of Metallurgical Engineering and Materials Science
- Indian Institute of Technology-Bombay
- Mumbai – 400076
- India
| | - Debananda Mohapatra
- Department of Metallurgical Engineering and Materials Science
- Indian Institute of Technology-Bombay
- Mumbai – 400076
- India
| | - Rajiv O. Dusane
- Department of Metallurgical Engineering and Materials Science
- Indian Institute of Technology-Bombay
- Mumbai – 400076
- India
| | - Smrutiranjan Parida
- Department of Metallurgical Engineering and Materials Science
- Indian Institute of Technology-Bombay
- Mumbai – 400076
- India
| |
Collapse
|
26
|
Li Z, Xin Y, Zhang Z. New Photocathodic Analysis Platform with Quasi-Core/Shell-Structured TiO2@Cu2O for Sensitive Detection of H2O2 Release from Living Cells. Anal Chem 2015; 87:10491-7. [DOI: 10.1021/acs.analchem.5b02644] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Zhenzhen Li
- School of Chemistry and Molecular
Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yanmei Xin
- School of Chemistry and Molecular
Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Zhonghai Zhang
- School of Chemistry and Molecular
Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| |
Collapse
|
27
|
Sun S. Recent advances in hybrid Cu2O-based heterogeneous nanostructures. NANOSCALE 2015; 7:10850-10882. [PMID: 26059894 DOI: 10.1039/c5nr02178b] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Hybrid Cu2O-based heterogeneous nanostructures possess novel synergistic properties that arise from the integrated interaction between the disparate components, thereby showing promising potential for various important applications including solar cells, carbon monoxide oxidation, photocatalysts, field emission, sensors, templates and so on. With the rapid progress in nanomaterials science and nanotechnology, hybrid Cu2O-based heterogeneous nanostructures with well-controlled compositions, shapes and sizes have been rationally designed and synthesized. This review attempts to summarize the important advances in the development of different types of hybrid Cu2O-based heterogeneous nanostructures, such as hybrid Cu2O-metal nanostructures, hybrid Cu2O-metal oxide nanostructures and hybrid Cu2O-carbon nanostructures. The correlations between the improved performances and interfacial structures of the hybrid Cu2O-based heterogeneous nanostructures are discussed based on some important and representative examples. Several key scientific issues and perspective research directions in this field are also given.
Collapse
Affiliation(s)
- Shaodong Sun
- School of Science, State Key Laboratory for Mechanical Behavior of Materials, MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, People's Republic of China.
| |
Collapse
|
28
|
Tsai CH, Chen CH, Fei PH, Hsu YK. Novel Semiconductor-Liquid Heterojunction Solar Cells Based on Cuprous Oxide and Iodine Electrolyte. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.03.158] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
29
|
Chakravarty A, Bhowmik K, Mukherjee A, De G. Cu₂O Nanoparticles Anchored on Amine-Functionalized Graphite Nanosheet: A Potential Reusable Catalyst. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:5210-5219. [PMID: 25902017 DOI: 10.1021/acs.langmuir.5b00970] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Synthesis of Cu2O-amine-functionalized graphite nanosheet (AFGNS) composite has been accomplished at room temperature. In the first step, AFGNS is synthesized by wet chemical functionalization where the -NH2 groups formed on nanosheet surface help to anchor the Cu(2+) ions homogeneously through coordinate bonds. Reduction of Cu(2+) (3.4 × 10(-2) mmol) in the presence of NaBH4 (1.8 mmol) can be restricted to Cu(1+) on AFGNS surface at room temperature. This leads to the formation of uniform Cu2O nanoparticles (NP) on AFGNS. The role played by the -NH2 groups in anchoring Cu(2+) ions and followed by stabilizing the Cu2O NP on AFGNS was understood by controlled reactions in the absence of -NH2 groups and without any graphitic support, respectively. The prepared Cu2O-AFGNS composite shows excellent catalytic activity toward degradation of an azo dye, methyl orange, which is an environmental pollutant. The dye degradation proceeds with high rate constant value, and the composite shows high stability and excellent reuse capability.
Collapse
|
30
|
Liu X, Zheng H, Sun Z, Han A, Du P. Earth-Abundant Copper-Based Bifunctional Electrocatalyst for Both Catalytic Hydrogen Production and Water Oxidation. ACS Catal 2015. [DOI: 10.1021/cs501480s] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xiang Liu
- Key Laboratory of Materials
for Energy Conversion, Chinese Academy of Sciences, Department of
Materials Science and Engineering, and the Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, No. 96 Jinzhai Road, Hefei, Anhui Province 230026, P. R. China
| | - Huafei Zheng
- Key Laboratory of Materials
for Energy Conversion, Chinese Academy of Sciences, Department of
Materials Science and Engineering, and the Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, No. 96 Jinzhai Road, Hefei, Anhui Province 230026, P. R. China
| | - Zijun Sun
- Key Laboratory of Materials
for Energy Conversion, Chinese Academy of Sciences, Department of
Materials Science and Engineering, and the Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, No. 96 Jinzhai Road, Hefei, Anhui Province 230026, P. R. China
| | - Ali Han
- Key Laboratory of Materials
for Energy Conversion, Chinese Academy of Sciences, Department of
Materials Science and Engineering, and the Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, No. 96 Jinzhai Road, Hefei, Anhui Province 230026, P. R. China
| | - Pingwu Du
- Key Laboratory of Materials
for Energy Conversion, Chinese Academy of Sciences, Department of
Materials Science and Engineering, and the Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, No. 96 Jinzhai Road, Hefei, Anhui Province 230026, P. R. China
| |
Collapse
|
31
|
Wang J, Li Q, Mu Y, Zhou X, Yang L, Lv P, Su S, Niu J, Fu W, Yang H. Effect of sodium chloride on the electrochemistry activity of electrodeposited CdTe films with various morphologies. RSC Adv 2015. [DOI: 10.1039/c5ra05885f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this paper, a cadmium telluride (CdTe) film is successfully synthesized on Ni foils via a simple electrochemical deposition method.
Collapse
Affiliation(s)
- Jun Wang
- State Key Laboratory of Superhard Materials
- Jilin University
- Changchun
- People's Republic of China
| | - Qian Li
- Beijing National Laboratory for Condensed Matter Physics
- Institute of Physics
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Yannan Mu
- State Key Laboratory of Superhard Materials
- Jilin University
- Changchun
- People's Republic of China
- Department of Physics and Chemistry
| | - Xiaoming Zhou
- College of Physics
- Beihua University
- Jilin 132013
- PR China
| | - Lihua Yang
- College of Electronic Science and Engineering
- Jilin University
- Changchun 130012
- PR China
| | - Pin Lv
- State Key Laboratory of Superhard Materials
- Jilin University
- Changchun
- People's Republic of China
| | - Shi Su
- State Key Laboratory of Superhard Materials
- Jilin University
- Changchun
- People's Republic of China
| | - Jiasheng Niu
- State Key Laboratory of Superhard Materials
- Jilin University
- Changchun
- People's Republic of China
| | - Wuyou Fu
- State Key Laboratory of Superhard Materials
- Jilin University
- Changchun
- People's Republic of China
| | - Haibin Yang
- State Key Laboratory of Superhard Materials
- Jilin University
- Changchun
- People's Republic of China
| |
Collapse
|
32
|
Yang Y, Han J, Ning X, Cao W, Xu W, Guo L. Controllable morphology and conductivity of electrodeposited Cu₂O thin film: effect of surfactants. ACS APPLIED MATERIALS & INTERFACES 2014; 6:22534-22543. [PMID: 25453498 DOI: 10.1021/am506657v] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Both the morphology and conductivity of Cu2O films are controlled in a facile electrodeposition process by tuning the concentration of surfactants. With the increase of the concentration of sodium dodecyl sulfate (SDS) in the plating solution, the average size of Cu2O crystals increases, and the electrical conductivity of Cu2O films changes from n-type to p-type. When the concentrations of SDS are lower than 0.85 mM, the electrodeposited Cu2O films show n-type conductivity because of the formation of oxygen vacancies or copper atoms. When the concentration of SDS is higher than 1.70 mM, the electrodeposited Cu2O films show p-type conductivity owing to the formation of copper vacancies. The concentrations of both the donors and the acceptors increase with the concentration of SDS. The effects of surfactants on the morphology and conductivity of electrodeposited Cu2O films are attributed to the adsorption of SDS molecules on the electrode substrate occupying the deposition sites of Cu(2+) ions and the adsorption of SDS micelles to Cu(2+) ions hindering the diffusion of Cu(2+) ions to the electrode, which affect the reduction rate of Cu(2+) ions and the formation of oxygen vacancies or copper vacancies during the electrodeposition.
Collapse
Affiliation(s)
- Ying Yang
- Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry, Institute of Analytical Science, Northwest University , Xi'an, Shaanxi 710069, People's Republic of China
| | | | | | | | | | | |
Collapse
|
33
|
Jiang X, Zhang M, Shi S, He G, Song X, Sun Z. Microstructure and optical properties of nanocrystalline Cu2O thin films prepared by electrodeposition. NANOSCALE RESEARCH LETTERS 2014; 9:219. [PMID: 24872805 PMCID: PMC4019351 DOI: 10.1186/1556-276x-9-219] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Accepted: 04/14/2014] [Indexed: 05/27/2023]
Abstract
Cuprous oxide (Cu2O) thin films were prepared by using electrodeposition technique at different applied potentials (-0.1, -0.3, -0.5, -0.7, and -0.9 V) and were annealed in vacuum at a temperature of 100°C for 1 h. Microstructure and optical properties of these films have been investigated by X-ray diffractometer (XRD), field-emission scanning electron microscope (SEM), UV-visible (vis) spectrophotometer, and fluorescence spectrophotometer. The morphology of these films varies obviously at different applied potentials. Analyses from these characterizations have confirmed that these films are composed of regular, well-faceted, polyhedral crystallites. UV-vis absorption spectra measurements have shown apparent shift in optical band gap from 1.69 to 2.03 eV as the applied potential becomes more cathodic. The emission of FL spectra at 603 nm may be assigned as the near band-edge emission.
Collapse
Affiliation(s)
- Xishun Jiang
- School of Physics and Material Science, Anhui University, Hefei 230601, China
- School of Mechanical and Electronic Engineering, Chuzhou University, Chuzhou 239000, China
| | - Miao Zhang
- School of Physics and Material Science, Anhui University, Hefei 230601, China
| | - Shiwei Shi
- School of Physics and Material Science, Anhui University, Hefei 230601, China
| | - Gang He
- School of Physics and Material Science, Anhui University, Hefei 230601, China
| | - Xueping Song
- School of Physics and Material Science, Anhui University, Hefei 230601, China
| | - Zhaoqi Sun
- School of Physics and Material Science, Anhui University, Hefei 230601, China
| |
Collapse
|
34
|
Yang L, Lv J, Sui Y, Fu W, Zhou X, Ma J, Su S, Zhang W, Lv P, Wu D, Mu Y, Yang H. Fabrication of Cu2O/Ag composite nanoframes as surface-enhanced Raman scattering substrates in a successive one-pot procedure. CrystEngComm 2014. [DOI: 10.1039/c3ce42052c] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
35
|
Sun S, Yang Z. Cu2O-templated strategy for synthesis of definable hollow architectures. Chem Commun (Camb) 2014; 50:7403-15. [DOI: 10.1039/c4cc00304g] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
36
|
Sun S, Yang Z. Recent advances in tuning crystal facets of polyhedral cuprous oxide architectures. RSC Adv 2014. [DOI: 10.1039/c3ra45445b] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
37
|
Ji R, Sun W, Chu Y. One-Step Hydrothermal Synthesis of a Porous Cu2O Film and Its Photoelectrochemical Properties. Chemphyschem 2013; 14:3971-6. [DOI: 10.1002/cphc.201300735] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Revised: 09/04/2013] [Indexed: 12/25/2022]
|
38
|
|
39
|
Hsu YK, Yu CH, Lin HH, Chen YC, Lin YG. Template synthesis of copper oxide nanowires for photoelectrochemical hydrogen generation. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2013.06.008] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
40
|
Hsu YK, Yu CH, Chen YC, Lin YG. Synthesis of novel Cu2O micro/nanostructural photocathode for solar water splitting. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.05.003] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
41
|
Zhang Z, Dua R, Zhang L, Zhu H, Zhang H, Wang P. Carbon-layer-protected cuprous oxide nanowire arrays for efficient water reduction. ACS NANO 2013; 7:1709-1717. [PMID: 23363436 DOI: 10.1021/nn3057092] [Citation(s) in RCA: 151] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In this work, we propose a solution-based carbon precursor coating and subsequent carbonization strategy to form a thin protective carbon layer on unstable semiconductor nanostructures as a solution to the commonly occurring photocorrosion problem of many semiconductors. A proof-of-concept is provided by using glucose as the carbon precursor to form a protective carbon coating onto cuprous oxide (Cu₂O) nanowire arrays which were synthesized from copper mesh. The carbon-layer-protected Cu₂O nanowire arrays exhibited remarkably improved photostability as well as considerably enhanced photocurrent density. The Cu₂O nanowire arrays coated with a carbon layer of 20 nm thickness were found to give an optimal water splitting performance, producing a photocurrent density of -3.95 mA cm⁻² and an optimal photocathode efficiency of 0.56% under illumination of AM 1.5G (100 mW cm⁻²). This is the highest value ever reported for a Cu₂O-based electrode coated with a metal/co-catalyst-free protective layer. The photostability, measured as the percentage of the photocurrent density at the end of 20 min measurement period relative to that at the beginning of the measurement, improved from 12.6% on the bare, nonprotected Cu₂O nanowire arrays to 80.7% on the continuous carbon coating protected ones, more than a 6-fold increase. We believe that the facile strategy presented in this work is a general approach that can address the stability issue of many nonstable photoelectrodes and thus has the potential to make a meaningful contribution in the general field of energy conversion.
Collapse
Affiliation(s)
- Zhonghai Zhang
- Water Desalination and Reuse Center, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | | | | | | | | | | |
Collapse
|
42
|
Gan J, Lu X, Wu J, Xie S, Zhai T, Yu M, Zhang Z, Mao Y, Wang SCI, Shen Y, Tong Y. Oxygen vacancies promoting photoelectrochemical performance of In(2)O(3) nanocubes. Sci Rep 2013; 3:1021. [PMID: 23293740 PMCID: PMC3537160 DOI: 10.1038/srep01021] [Citation(s) in RCA: 363] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Accepted: 10/12/2012] [Indexed: 12/23/2022] Open
Abstract
This work reports a facile method for preparing the new photoactive In2O3 films as well as their implementation in photoelectrochemical (PEC) application. We firstly investigated the relationship between oxygen vacancies (VO) and PEC performance and revealed a rule between them. We found that the optimized In2O3−n sample yielded a photocurrent density up to 3.83 mA/cm2 in 1 M Na2SO4 solution under the solar illumination. It also gave efficiency as high as 75% over 400 nm in the incident-photon-to-current-conversion efficiency (IPCE) spectrum, which is the best value for an In2O3 photoanode reported. Moreover, the PEC performance of these films is enhanced as the VO increased and then decreased with further increasing VO. This two-side effect means VO can favor the photoelectron activation, or act as recombination centers to prohibit the generation of photocurrent. Making highly photoactive In2O3 nanostructures in this work will open up new opportunities in various areas.
Collapse
Affiliation(s)
- Jiayong Gan
- KLGHEI of Environment and Energy Chemistry, MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Luo B, Li X, Li X, Xue L, Li S, Li X. Copper nanocubes and nanostructured cuprous oxide prepared by surfactant-assisted electrochemical deposition. CrystEngComm 2013. [DOI: 10.1039/c3ce40708j] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
44
|
Parisi J, Liu Y, Su L, Lei Y. In situ synthesis of vertical 3-D copper-core/carbon-sheath nanowalls in microfluidic devices. RSC Adv 2013. [DOI: 10.1039/c2ra22183g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
|
45
|
Zhao L, Dong W, Zheng F, Fang L, Shen M. Interrupted growth and photoelectrochemistry of Cu2O and Cu particles on TiO2. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.07.034] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
46
|
Zhang P, Wang Y, Sui Y, Wang C, Liu B, Zou G, Zou B. A facile method to synthesize nanosized metal oxides from their corresponding bulk materials. CrystEngComm 2012. [DOI: 10.1039/c2ce25398d] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
47
|
Xiao G, Ning J, Liu Z, Sui Y, Wang Y, Dong Q, Tian W, Liu B, Zou G, Zou B. Solution synthesis of copper selenide nanocrystals and their electrical transport properties. CrystEngComm 2012. [DOI: 10.1039/c2ce06270d] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
48
|
Yang L, Sui Y, Zhao W, Fu W, Yang H, Zhang L, Zhou X, Cheng S, Ma J, Zhao H, Li M. One-pot shorter time synthesis of Cu2O particles and nanoframes with novel shapes. CrystEngComm 2011. [DOI: 10.1039/c1ce05505d] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|