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Yang S, Liu X, Li S, Yuan W, Yang L, Wang T, Zheng H, Cao R, Zhang W. The mechanism of water oxidation using transition metal-based heterogeneous electrocatalysts. Chem Soc Rev 2024; 53:5593-5625. [PMID: 38646825 DOI: 10.1039/d3cs01031g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
The water oxidation reaction, a crucial process for solar energy conversion, has garnered significant research attention. Achieving efficient energy conversion requires the development of cost-effective and durable water oxidation catalysts. To design effective catalysts, it is essential to have a fundamental understanding of the reaction mechanisms. This review presents a comprehensive overview of recent advancements in the understanding of the mechanisms of water oxidation using transition metal-based heterogeneous electrocatalysts, including Mn, Fe, Co, Ni, and Cu-based catalysts. It highlights the catalytic mechanisms of different transition metals and emphasizes the importance of monitoring of key intermediates to explore the reaction pathway. In addition, advanced techniques for physical characterization of water oxidation intermediates are also introduced, for the purpose of providing information for establishing reliable methodologies in water oxidation research. The study of transition metal-based water oxidation electrocatalysts is instrumental in providing novel insights into understanding both natural and artificial energy conversion processes.
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Affiliation(s)
- Shujiao Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.
| | - Xiaohan Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.
| | - Sisi Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.
| | - Wenjie Yuan
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.
| | - Luna Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.
| | - Ting Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.
| | - Haoquan Zheng
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.
| | - Rui Cao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.
| | - Wei Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.
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2
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Yousaf S, Zulfiqar S, Khalid MU, Warsi MF, Shakir I, Shahid M, Ahmad I, Cochran EW. Beyond the ordinary: exploring the synergistic effect of iodine and nickel doping in cobalt hydroxide for superior energy storage applications. RSC Adv 2024; 14:16661-16677. [PMID: 38784421 PMCID: PMC11110021 DOI: 10.1039/d4ra01907e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 05/05/2024] [Indexed: 05/25/2024] Open
Abstract
This study explores the iodine and nickel-doped cobalt hydroxide (I & Ni-co-doped-Co(OH)2) as a potential material for energy storage and conversion applications owing to its excellent electrochemical characteristics. According to our analysis, it was revealed that this material exhibits pseudocapacitive-like behavior, as evident from distinct redox peaks observed in cyclic voltammetry, which confirms its ability to store charges. The diffusion coefficient analysis reveals that this material possesses conductivity and rapid diffusion kinetics, making it particularly advantageous compared to materials synthesized in previous studies. Charge-discharge measurements were performed to analyze the charge storage capacity and stability of this material after 3000 consecutive cycles, showing its excellent stability with minimum loss of capacitance. Furthermore, its anodic and cathodic linear sweep voltammetry curves were measured to evaluate its oxygen evolution and hydrogen evolution reaction performance. The results showed that the material exhibited an excellent water splitting performance, which suggests its potential practical application for hydrogen production. This increased activity was attributed to the doping of α-Co(OH)2, which improved its structural stability, electrical conductivity, and charge transfer efficiency. Thus, I & Ni-co-doped-Co(OH)2 possesses enhanced properties that make it an excellent material for both energy storage and hydrogen generation applications.
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Affiliation(s)
- Sheraz Yousaf
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur Bahawalpur 63100 Pakistan
| | - Sonia Zulfiqar
- Department of Chemistry, Faculty of Science, University of Ostrava 30. Dubna 22 Ostrava 701 03 Czech Republic
- Department of Chemical and Biological Engineering, Iowa State University Sweeney Hall, 618 Bissell Road Ames Iowa 50011 USA
| | - Muhammad Usman Khalid
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur Bahawalpur 63100 Pakistan
| | - Muhammad Farooq Warsi
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur Bahawalpur 63100 Pakistan
| | - Imran Shakir
- Department of Physics, Faculty of Science, Islamic University of Madinah Madinah 42351 Saudi Arabia
| | - Muhammad Shahid
- Department of Chemistry, College of Science, University of Hafr Al Batin P. O. Box 1803 Hafr Al Batin 31991 Saudi Arabia
| | - Iqbal Ahmad
- Department of Chemistry, Allama Iqbal Open University Islamabad 44000 Pakistan
| | - Eric W Cochran
- Department of Chemical and Biological Engineering, Iowa State University Sweeney Hall, 618 Bissell Road Ames Iowa 50011 USA
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3
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Feng H, Zhang Z, Deng H, Li S, Zu X, Mei Z. Efficient degradation of organics by ultrasonic piezoelectric effect on CuO-BTO/AFC composite. NANOTECHNOLOGY 2024; 35:245703. [PMID: 38387088 DOI: 10.1088/1361-6528/ad2c55] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 02/21/2024] [Indexed: 02/24/2024]
Abstract
The recombination of photoexcited electron-hole pairs greatly limits the degradation performance of photocatalysts. Ultrasonic cavitation and internal electric field induced by the piezoelectric effect are helpful for the separation of electron-hole pairs and degradation efficiency. The activated foam carbon (AFC) owing to its high surface area is often used as the substrate to grow catalysts to provide more reactive active sites. In this work, CuO@BaTiO3(CuO@BTO) heterostructure is prepared by hydrothermal method on the surface of AFC to investigate the ultrasonic piezoelectric catalysis effect. X-ray diffraction (XRD), Raman spectroscopy, energy dispersive x-ray spectroscopy (EDS) and scanning electron microscopy (SEM) were used to analyze the structure and morphology of CuO-BTO/AFC composite. It is found that the CuO-BTO/AFC composite exhibits excellent piezo-catalytic performance for the degradation of organics promoted by ultrasonic vibration. The CuO-BTO/AFC composite can decompose methyl orange and methylene blue with degradation efficiency as high as 93.9% and 97.6% within 25 min, respectively. The mechanism of piezoelectricity enhanced ultrasound supported catalysis effect of system CuO-BTO/AFC is discussed. The formed heterojunction structure between BTO and CuO promotes the separation of positive and negative charges caused by the piezoelectric effect.
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Affiliation(s)
- Haoyang Feng
- School of Mechatronic Engineering, Shenzhen Polytechnic, Shenzhen 518055, People's Republic of China
| | - Zhi Zhang
- CIMC Vehicle (Group) Co., Ltd, Shenzhen 518067, People's Republic of China
| | - Hongxiang Deng
- Yangtze Delta Region Institute (Huzhou) & School of Physics, University of Electronic Science and Technology of China, Huzhou 313001, People's Republic of China
| | - Sean Li
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia
| | - Xiaotao Zu
- Yangtze Delta Region Institute (Huzhou) & School of Physics, University of Electronic Science and Technology of China, Huzhou 313001, People's Republic of China
| | - Zongwei Mei
- Yangtze Delta Region Institute (Huzhou) & School of Physics, University of Electronic Science and Technology of China, Huzhou 313001, People's Republic of China
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4
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Sun W, Liu S, Wang C, Zu X, Li S, Xiang X. Integration of One-Dimensional (1D) Lead-Free Perovskite Microbelts onto Silicon for Ultraviolet-Visible-Near-Infrared (UV-vis-NIR) Heterojunction Photodetectors. J Phys Chem Lett 2024; 15:2359-2368. [PMID: 38391127 DOI: 10.1021/acs.jpclett.4c00165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Lead-free perovskites are considered to be candidates for next-generation photodetectors, because of their excellent charge carrier transport properties and low toxicity. However, their application in integrated circuits is hindered by their inadequate performance and size restrictions. To aim at the development of lead-free perovskite-integrated optoelectronic devices, a CsAg2I3/silicon (CAI/Si) heterojunction is presented in this work by using a spatial confinement growth method, where the in-plane growth of CAI microbelts with high-quality single-crystal characteristics is primarily dependent on the concentration of surrounding precursor solution. The fabricated photodetectors based on the CAI/Si heterojunctions exhibit a broad-spectrum detection capability in the ultraviolet-visible-near-infrared (UV-vis-NIR) range. In addition, the photodetectors show good photoelectric detection performance, including a maximum responsivity of 48.5 mA/W and detectivity of 1.13 × 1011 Jones, respectively. Besides, the photodetectors have a rapid response of 6.5/224 μs and good air stability for over 2 months. This work contributes a new idea to design next-generation optoelectronic devices with high integration density.
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Affiliation(s)
- Wenfeng Sun
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Shaolong Liu
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Caizheng Wang
- Shenzhen Institute for Advanced Study, University of Electronic Science and Technology of China, Shenzhen 518110, China
| | - Xiaotao Zu
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Sean Li
- School of Materials Science and Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Xia Xiang
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
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Huang SZ, Fang CG, Guo JX, Wang BY, Yang HD, Feng QY, Li B, Xiang X, Zu XT, Deng HX. Boosting thermoelectric performance of HfSe 2 monolayer by selectivity chemical adsorption. J Colloid Interface Sci 2023; 639:14-23. [PMID: 36804787 DOI: 10.1016/j.jcis.2023.02.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 01/29/2023] [Accepted: 02/10/2023] [Indexed: 02/13/2023]
Abstract
In this work, a strategy to boosting thermoelectric (TE) performance of 2D materials is explored. We find that, appropriate chemical adsorption of atoms can effectively increase the TE performance of HfSe2 monolayer. Our results show that the adsorption of Ni atom on HfSe2 monolayer (Ni-HfSe2) can improve the optimal power factor PF and ZT at 300 K, increased by more than ∼67% and ∼340%, respectively. The PF and ZT of Ni-HfSe2 at 300 K can reach 85.06 mW m-1 K-2 and 3.09, respectively. The detailed study reveal that the adsorption of Ni atom can induce additional conductional channels of electrons, enhance the coupling of acoustic-optical phonons and the phonon anharmonicity, resulting in an obvious increment of electrical conductivity (increased by more than ∼89%) in n-type doped system and an ultralow phonon thermal conductivity (1.17 W/mK at 300 K). The high electrical conductivity and ultralow phonon thermal conductivity results in the significant increments of PF and ZT. Our study also shows that, Ni-HfSe2 is a thermal, dynamic and mechanical stable structure, which can be employed in TE application. Our research indicates that selectivity chemical adsorption is a promising way to increase TE performance of 2D materials.
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Affiliation(s)
- Si-Zhao Huang
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Cheng-Ge Fang
- China Academy of Launch Vehicle Technology, Beijing 10076, China
| | - Jia-Xing Guo
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Bi-Yi Wang
- Science and Technology on Electro-Optical Information Security Control Laboratory, Tianjin 300308, China
| | - Hong-Dong Yang
- Shanghai Institute of Space Power-Sources, Shanghai 200245, China
| | - Qing-Yi Feng
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Bo Li
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Xia Xiang
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Xiao-Tao Zu
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Hong-Xiang Deng
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China.
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Wang L, Xue X, Luan Q, Guo J, Chu L, Wang Z, Li B, Yang M, Wang G. Interface engineering of Mo-doped Ni 9S 8/Ni 3S 2 multiphase heterostructure nanoflowers by one step synthesis for efficient overall water splitting. J Colloid Interface Sci 2023; 634:563-574. [PMID: 36549205 DOI: 10.1016/j.jcis.2022.12.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
Accelerating charge transfer efficiency by constructing heterogeneous interfaces on metal-based substrates is an effective way to improve the electrocatalytic performance of materials. However, minimizing the substrate-catalyst interfacial resistance to maximize catalytic activity remains a challenge. This study reports a simple interface engineering strategy for constructing Mo-Ni9S8/Ni3S2 heterostructured nanoflowers. Experimental and theoretical investigations reveal that the primary role assumed by Ni3S2 in Mo-Ni9S8/Ni3S2 heterostructure is to replace nickel foam (NF) substrate for electron conduction, and Ni3S2 has a lower potential energy barrier (0.76 to 1.11 eV) than NF (1.87 eV), resulting in a more effortless electron transfer. The interface between Ni3S2 and Mo-Ni9S8 effectively regulates electron redistribution, and when the electrons from Ni3S2 are transferred to Mo-Ni9S8, the potential energy barriers at the heterogeneous interface are 1.06 eV, lower than that between NF and Ni3S2 (1.53 eV). Mo-Ni9S8/Ni3S2-0.1 exhibited excellent oxygen evolution reaction (OER)/hydrogen evolution reaction (HER) bifunctional catalytic activity in 1 M KOH, with overpotentials of only 223 mV@100 mA cm-2 for OER and 116 mV@10 mA cm-2 for HER. Moreover, when combined with an alkaline electrolytic cell, it required only an ultra-low cell voltage of 1.51 V to drive a current density of 10 mA cm-2. This work provides new inspirations for rationally designing interface engineering for advanced catalytic materials.
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Affiliation(s)
- Liyan Wang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Xiangdong Xue
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Qingjie Luan
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Junzhen Guo
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Liang Chu
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Zhaokun Wang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Baozhen Li
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Mu Yang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China.
| | - Ge Wang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China.
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7
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Huang SZ, Fang CG, Feng QY, Wang BY, Yang HD, Li B, Xiang X, Zu XT, Deng HX. Strain Tunable Thermoelectric Material: Janus ZrSSe Monolayer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:2719-2728. [PMID: 36753560 DOI: 10.1021/acs.langmuir.2c03185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Thermoelectric (TE) performance of the Janus ZrSSe monolayer under biaxial strain is systematically explored by the first-principles approach and Boltzmann transport theory. Our results show that the Janus ZrSSe monolayer has excellent chemical, dynamical, thermal, and mechanical stabilities, which provide a reliable platform for strain tuning. The electronic structure and TE transport parameters of the Janus ZrSSe monolayer can be obviously tuned by biaxial strain. Under 2% tensile strain, the optimal power factor PF of the n-type-doped Janus ZrSSe monolayer reaches 46.36 m W m-1 K-2 at 300 K. This value is higher than that of the most classical TE materials. Under 6% tensile strain, the maximum ZT values for the p-type- and n-type-doped Janus ZrSSe monolayers are 4.41 and 4.88, respectively, which are about 3.83 and 1.49 times the results of no strain, respectively. Such high TE performance can be attributed to high band degeneracy and short phonon relaxation time under strain, causing simultaneous increase of the Seebeck coefficient and suppression of the phonon thermal transport. Present work demonstrates that the Janus ZrSSe monolayer is a promising candidate as a strain-tunable TE material and stimulates further experimental synthesis.
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Affiliation(s)
- Si-Zhao Huang
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Cheng-Ge Fang
- China Academy of Launch Vehicle Technology, Beijing 10076, China
| | - Qing-Yi Feng
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Bi-Yi Wang
- Science and Technology on Electro-Optical Information Security Control Laboratory, Tianjin 300308, China
| | - Hong-Dong Yang
- Shanghai Institute of Space Power-Sources, Shanghai 200245, China
| | - Bo Li
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Xia Xiang
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Xiao-Tao Zu
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Hong-Xiang Deng
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
- Science and Technology on Electro-Optical Information Security Control Laboratory, Tianjin 300308, China
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Zheng Z, Morgan M, Maji P, Xia X, Zu X, Zhou W. CuO nanorod arrays by gas-phase cation exchange for efficient photoelectrochemical water splitting. RSC Adv 2023; 13:3487-3493. [PMID: 36756593 PMCID: PMC9871730 DOI: 10.1039/d2ra07648a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 01/13/2023] [Indexed: 01/25/2023] Open
Abstract
CuO has been considered a promising candidate for photoelectrochemical water splitting electrodes owing to its suitable bandgap, favorable band alignments, and earth-abundant nature. In this paper, a novel gas-phase cation exchange method was developed to synthesize CuO nanorod arrays by using ZnO nanorod arrays as the template. ZnO nanorods were fully converted to CuO nanorods with aspect ratios of 10-20 at the temperature range from 350 to 600 °C. The as-synthesized CuO nanorods exhibit a photocurrent as high as 2.42 mA cm-2 at 0 V vs. RHE (reversible hydrogen electrode) under 1.5 AM solar irradiation, demonstrating the potential as the photoelectrode for efficient photoelectrochemical water splitting. Our method provides a new approach for the rational fabrication of high-performance CuO-based nanodevices.
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Affiliation(s)
- Zhi Zheng
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China Huzhou 313001 P. R. China .,Department of Physics, Advanced Materials Research Institute, University of New Orleans New Orleans LA 70148 USA .,School of Physics, University of Electronic Science and Technology of China Chengdu 611731 P. R. China
| | - Mikhail Morgan
- Department of Physics, Advanced Materials Research Institute, University of New Orleans New Orleans LA 70148 USA
| | - Pramathesh Maji
- Department of Physics, Advanced Materials Research Institute, University of New Orleans New Orleans LA 70148 USA
| | - Xiang Xia
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China Huzhou 313001 P. R. China .,School of Physics, University of Electronic Science and Technology of China Chengdu 611731 P. R. China
| | - Xiaotao Zu
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China Huzhou 313001 P. R. China .,School of Physics, University of Electronic Science and Technology of China Chengdu 611731 P. R. China
| | - Weilie Zhou
- Department of Physics, Advanced Materials Research Institute, University of New Orleans New Orleans LA 70148 USA
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Chen C, Ma J, Wang Y, Yi Z, Wang S, Gao H, Wu X, Liu G, Yang H. CTAB-assisted synthesis of Bi2MoO6 hierarchical microsphere and its application as a novel efficient and recyclable adsorbent in removing organic pollutants. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130441] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Wang Y, Sun X, Yi Z, Wu X, Liu G, Pu Z, Yang H. Construction of a Z-scheme Ag 2MoO 4/BiOBr heterojunction for photocatalytically removing organic pollutants. Dalton Trans 2022; 51:18652-18666. [PMID: 36448478 DOI: 10.1039/d2dt03345c] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
How to facilitate photogenerated-carrier separation is an important step in developing excellent semiconductor photocatalysts for environmental pollutant removal. Herein, Ag2MoO4 (AMO) nanoparticles were assembled onto the surface of BiOBr (BOB) nanosheets to construct a highly efficient Z-scheme AMO/BOB heterojunction photocatalyst. Several analytical techniques were used to elucidate the characteristics and photocatalytic mechanism of the AMO/BOB heterojunction. Photodegradation experiments for removing methylene blue under simulated-sunlight irradiation reveal that a 20%AMO/BOB heterojunction exhibits excellent photodegradation activity with η(30 min) = 93.8% and kapp = 0.08638 min-1, which were greater by 4.5 and 5.6 times in comparison with that of pure BOB and AMO, respectively. Based on the experimental and density functional theory (DFT) calculation results, it is proposed that the Z-scheme carrier transfer/separation mechanism dominates the enhanced photodegradation performance of the composite photocatalysts. Additionally, the potential application of AMO/BOB photocatalysts in degrading various organic pollutants (including organic dyes, antibiotics and other serious organic pollutants) was also investigated.
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Affiliation(s)
- Yanming Wang
- School of Science, Lanzhou University of Technology, Lanzhou 730050, China.
| | - Xiaofeng Sun
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China
| | - Zao Yi
- Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China
| | - Xianwen Wu
- School of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
| | - Guorong Liu
- School of Science, Lanzhou University of Technology, Lanzhou 730050, China.
| | - Zhongsheng Pu
- School of Science, Lanzhou University of Technology, Lanzhou 730050, China.
| | - Hua Yang
- School of Science, Lanzhou University of Technology, Lanzhou 730050, China. .,State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China
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11
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Rajput P, Kumar J, Mittal U, Nimal A, Arsenin AV, Volkov VS, Mishra P. Thermal sensitivity study of thin film over-layered SAW devices for sensor applications. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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12
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Chen C, Wang Y, Yi Z, Wang S, Ma J, Gao H, Wu X, Liu G, Yang H. PH-induced structural evolution, photodegradation mechanism and application of bismuth molybdate photocatalyst. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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13
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Wang D, Zhu W, Yi Z, Ma G, Gao X, Dai B, Yu Y, Zhou G, Wu P, Liu C. Highly sensitive sensing of a magnetic field and temperature based on two open ring channels SPR-PCF. OPTICS EXPRESS 2022; 30:39055-39067. [PMID: 36258455 DOI: 10.1364/oe.470386] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
A surface plasmon resonance (SPR) sensor comprising photonic crystal fiber (PCF) is designed for magnetic field and temperature dual-parameter sensing. In order to make the SPR detection of magnetic field and temperature effectively, the two open ring channels of the proposed sensor are coated with gold and silver layers and filled with magnetic fluid (MF) and Polydimethylsiloxane (PDMS), respectively. The sensor is analyzed by the finite element method and its mode characteristics, structure parameters and sensing performance are investigated. The analysis reveals when the magnetic field is a range of 40-310 Oe and the temperature is a range of 0-60 °C, the maximum magnetic field sensitivity is 308.3 pm/Oe and temperature sensitivity is 6520 pm/°C. Furthermore, temperature and magnetic field do not crosstalk with each other's SPR peak. Its refractive index sensing performance is also investigated, the maximum sensitivity and FOM of the left channel sensing are 16820 nm/RIU and 1605 RIU-1, that of the right channel sensing are 13320 nm/RIU and 2277 RIU-1. Because of its high sensitivity and special sensing performance, the proposed sensor will have potential application in solving the problems of cross-sensitivity and demodulation due to nonlinear changes in sensitivity of dual-parameter sensing.
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Feng Q, Deng H, Wang B, Li B, Xiang X, Li L, Yuan X, Zheng W, Yang H, Li S, Zu X. First-principle study of neutron irradiation induced performance degradation of amorphous porous silica. OPTICS EXPRESS 2022; 30:35807-35816. [PMID: 36258523 DOI: 10.1364/oe.462862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 09/05/2022] [Indexed: 06/16/2023]
Abstract
Neutron irradiation induced degradation of porous silica film is studied by Molecular Dynamics and Density-Functional theory-based methods. The degradation of microscopic structure, thermal property, and optical property of porous silica film are systematically investigated. Low-energy recoil is used to simulate the neutron irradiation effect. The pair and bond angle distributions, and coordination number distributions reveal that, under neutron irradiation, the microscopic structure of porous silica film is obviously modified, and the coordination defects are induced. We find that the higher recoil energy, the more coordination defects are formed in the film. The increased defects lead to a decrease in thermal conductivity. In addition, neutron irradiation induces additional optical absorption peaks in UV region and increasement in refractive index, resulting in a noticeable reduction in light transmittance. The detailed calculation of density of states reveals that these optical absorption peaks originate from the irradiation induced defect states in band gap. Our work shows that low-energy neutron irradiation can induce obvious defect density and degrade thermal and optical properties of porous silica film, which are responsible for subsequent laser-induced damage.
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Li J, Wang S, Li L, Wei Z, Wang Q, Sun H, Tian J, Guo Y, Liu J, Yu H, Li N, Long G, Bai X, Yang W, Yang R, Shi D, Zhang G. Chemical Vapor Deposition of 4 Inch Wafer‐Scale Monolayer MoSe
2. SMALL SCIENCE 2022. [DOI: 10.1002/smsc.202200062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Jiawei Li
- Songshan Lake Materials Laboratory Dongguan Guangdong 523808 China
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China
- School of Physical Sciences University of Chinese Academy of Sciences Beijing 100190 China
| | - Shuopei Wang
- Songshan Lake Materials Laboratory Dongguan Guangdong 523808 China
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China
| | - Lu Li
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China
- School of Physical Sciences University of Chinese Academy of Sciences Beijing 100190 China
| | - Zheng Wei
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China
- School of Physical Sciences University of Chinese Academy of Sciences Beijing 100190 China
| | - Qinqin Wang
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China
- School of Physical Sciences University of Chinese Academy of Sciences Beijing 100190 China
| | - Huacong Sun
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China
- School of Physical Sciences University of Chinese Academy of Sciences Beijing 100190 China
| | - Jinpeng Tian
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China
- School of Physical Sciences University of Chinese Academy of Sciences Beijing 100190 China
| | - Yutuo Guo
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China
- School of Physical Sciences University of Chinese Academy of Sciences Beijing 100190 China
| | - Jieying Liu
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China
- School of Physical Sciences University of Chinese Academy of Sciences Beijing 100190 China
| | - Hua Yu
- Songshan Lake Materials Laboratory Dongguan Guangdong 523808 China
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China
| | - Na Li
- Songshan Lake Materials Laboratory Dongguan Guangdong 523808 China
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China
| | - Gen Long
- Songshan Lake Materials Laboratory Dongguan Guangdong 523808 China
| | - Xuedong Bai
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China
- School of Physical Sciences University of Chinese Academy of Sciences Beijing 100190 China
| | - Wei Yang
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China
- School of Physical Sciences University of Chinese Academy of Sciences Beijing 100190 China
| | - Rong Yang
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China
- School of Physical Sciences University of Chinese Academy of Sciences Beijing 100190 China
| | - Dongxia Shi
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China
- School of Physical Sciences University of Chinese Academy of Sciences Beijing 100190 China
| | - Guangyu Zhang
- Songshan Lake Materials Laboratory Dongguan Guangdong 523808 China
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China
- School of Physical Sciences University of Chinese Academy of Sciences Beijing 100190 China
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Wang W, Guo Y, Xiong W, Fu Y, Elmarakbi A, Zu X. Highly Sensitive and Selective Surface Acoustic Wave Ammonia Sensor Operated at Room Temperature with a Polyacrylic Acid Sensing Layer. SENSORS (BASEL, SWITZERLAND) 2022; 22:6349. [PMID: 36080809 PMCID: PMC9460326 DOI: 10.3390/s22176349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/15/2022] [Accepted: 08/17/2022] [Indexed: 06/15/2023]
Abstract
In this study, polyacrylic acid (PAA) films were deposited onto a quartz surface acoustic wave (SAW) resonator using a spin-coating technique for ammonia sensing operated at room temperature, and the sensing mechanisms and performance were systematically studied. The oxygen-containing functional groups on the surfaces of the PAA film make it sensitive and selective to ammonia molecules, even when tested at room temperature. The ammonia molecules adsorbed by the oxygen-containing functional groups of PAA (e.g., hydroxyl and epoxy groups) increase the membrane's stiffness, which was identified as the primary mechanism leading to the positive frequency shifts. However, mass loading due to adsorption of ammonia molecules is not a major reason as it will result in a negative frequency shifts. When the PAA coated SAW sensor was exposed to ammonia with a low concentration of 500 ppb, it showed a positive frequency shift of 225 Hz, with both good repeatability and stability, as well as a good selectivity to ammonia compared with those to C2H5OH, H2, HCl, H2S, CO, NO2, NO, and CH3COCH3.
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Affiliation(s)
- Weiqiang Wang
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Yuanjun Guo
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Wenkai Xiong
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Yongqing Fu
- Faculty of Engineering & Environment, University of Northumbria, Newcastle upon Tyne, NE1 8ST, UK
| | - Ahmed Elmarakbi
- Faculty of Engineering & Environment, University of Northumbria, Newcastle upon Tyne, NE1 8ST, UK
| | - Xiaotao Zu
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
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Co-Based Nanosheets with Transitional Metal Doping for Oxygen Evolution Reaction. NANOMATERIALS 2022; 12:nano12111788. [PMID: 35683643 PMCID: PMC9182512 DOI: 10.3390/nano12111788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 05/19/2022] [Accepted: 05/20/2022] [Indexed: 11/16/2022]
Abstract
Activated two-dimension (2D) materials are used in various applications as high-performance catalysts. Breaking the long-range order of the basal plane of 2D materials can highly promote catalytic activity by supplying more active sites. Here we developed a method to synthesize ultrathin MCoOx (M = V, Mn, Fe, Ni, Cu, Zn) amorphous nanosheets (ANSs). These Co-based ANSs show high oxygen evolution reaction (OER) activity in alkaline solution due to the broken long-range order and the presence of abundant low bonded O on the basal plane. The stable Fe1Co1Ox ANSs also show an overpotential of ca. 240 mV of achieving 10 mA/cm2 in OER, better than most reported transition metal-based electrocatalysts.
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Porous aza-doped graphene-analogous 2D material a unique catalyst for CO2 conversion to formic-acid by hydrogenation and electroreduction approaches. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112285] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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