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Sun S, Vikrant K, Kim KH, Boukhvalov DW. Titanium dioxide-supported mercury photocatalysts for oxidative removal of hydrogen sulfide from the air using a portable air purification unit. JOURNAL OF HAZARDOUS MATERIALS 2024; 470:134089. [PMID: 38579580 DOI: 10.1016/j.jhazmat.2024.134089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/01/2024] [Accepted: 03/18/2024] [Indexed: 04/07/2024]
Abstract
Photocatalytic removal of gaseous hydrogen sulfide (H2S) has been studied through the control of key process variables using a prototype air purifier (AP) fabricated with titanium dioxide (TiO2)-supported mercury. The performance of Hg/TiO2 systems, prepared with different Hg mass proportions over TiO2 (such as 0.1%, 1%, 2%, and 5%), is measured against 5 ppm H2S at 160 L min-1 under UV irradiation. Accordingly, their removal efficiency (RE) values after 360 s are 40.3%, 74.8%, 99.3%, and 99.9%, respectively (relative to 33.5% of AP (TiO2)). An AP with a 2% Hg/TiO2 unit achieves a clean air delivery rate of 32 L min-1 with kinetic reaction rate (r (at 10% RE)) of 0.774 mmol h-1 g-1, quantum yield of 2.19E-02 molecules photon-1, and space-time yield of 1.46E-04 molecules photon-1 mg-1. The superior photocatalytic performance of Hg/TiO2 is supported by superoxide anion and hydroxyl radicals formed in dry air and humid nitrogen (N2) environments, respectively. A density functional theory simulation suggests that the presence of oxygen vacancies should promote the disparities in the electronic structure to subsequently affect the reaction pathways and energetics. The presence of moisture enhances the robust formation of a mercury-OH bond to favorably yield β-mercury sulfide from H2S.
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Affiliation(s)
- Shaoqing Sun
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seoul 04763, the Republic of Korea
| | - Kumar Vikrant
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seoul 04763, the Republic of Korea
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seoul 04763, the Republic of Korea.
| | - Danil W Boukhvalov
- College of Science, Institute of Materials Physics and Chemistry, Nanjing Forestry University, Nanjing 210037, China; Institute of Physics and Technology, Ural Federal University, Mira Street 19, 620002 Yekaterinburg, Russia
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Barakat NAM, Gamal S, Ghouri ZK, Fadali OA, Abdelraheem OH, Hashem M, Moustafa HM. Graphitized mango seed as an effective 3D anode in batch and continuous mode microbial fuel cells for sustainable wastewater treatment and power generation. RSC Adv 2024; 14:3163-3177. [PMID: 38249675 PMCID: PMC10797328 DOI: 10.1039/d3ra05084j] [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: 07/27/2023] [Accepted: 12/08/2023] [Indexed: 01/23/2024] Open
Abstract
Herein, we explored the utilization of graphitized mango seeds as 3D-packed anodes in microbial fuel cells (MFCs) powered by sewage wastewater. Mango seeds were graphitized at different temperatures (800 °C, 900 °C, 1000 °C, and 1100 °C) and their effectiveness as anodes was evaluated. Surface morphology analysis indicated that the proposed anode was characterized by layered branches and micro-sized deep holes, facilitating enhanced biofilm formation and microorganism attachment. Maximum power densities achieved in the MFCs utilizing the mango seed-packed anodes graphitized at 1100 °C and 1000 °C were 2170.8 ± 90 and 1350.6 ± 125 mW m-2, respectively. Furthermore, the weight of the graphitized seed anode demonstrated a positive correlation with the generated power density and cell potential. Specifically, MFCs fabricated with 9 g and 6 g anodes achieved maximum power densities of 2170.8 ± 90 and 1800.5 ± 40 mW m-2, respectively. A continuous mode air cathode MFC employing the proposed graphitized mango anode prepared at 1100 °C and operated at a flow rate of 2 L h-1 generated a stable current density of approximately 12 A m-2 after 15 hours of operation, maintaining its stability for 75 hours. Furthermore, a chemical oxygen demand (COD) removal efficiency of 85% was achieved in an assembled continuous mode MFC. Considering that the proposed MFC was driven by sewage wastewater without the addition of external microorganisms, atmospheric oxygen was used as the electron acceptor through an air cathode mode, agricultural biomass waste was employed for the preparation of the anode, and a higher power density was achieved (2170.8 mW m-2) compared to reported values; it is evident that the proposed graphitized mango seed anode exhibits high efficiency for application in MFCs.
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Affiliation(s)
- Nasser A M Barakat
- Chemical Engineering Department, Faculty of Engineering, Minia University El-Minia 61516 Egypt +20862364420 +20862348005
| | - Shimaa Gamal
- Chemical Engineering Department, Faculty of Engineering, Minia University El-Minia 61516 Egypt +20862364420 +20862348005
| | - Zafar Khan Ghouri
- School of Computing, Engineering and Digital Technologies, Teesside University UK
| | - Olfat A Fadali
- Chemical Engineering Department, Faculty of Engineering, Minia University El-Minia 61516 Egypt +20862364420 +20862348005
| | - Omnia H Abdelraheem
- Sciences Engineering Department, Faculty of Engineering, Beni-Suef University Beni-Suef 62511 Egypt
| | - Mohamed Hashem
- Dental Health Department, College of Applied Medical Sciences, King Saud University Riyadh 11433 Saudi Arabia
| | - Hager M Moustafa
- Chemical Engineering Department, Faculty of Engineering, Minia University El-Minia 61516 Egypt +20862364420 +20862348005
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Jeong Y, Janani G, Kim D, An TY, Surendran S, Lee H, Moon DJ, Kim JY, Han MK, Sim U. Roles of Heterojunction and Cu Vacancies in the Au@Cu 2-xSe for the Enhancement of Electrochemical Nitrogen Reduction Performance. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37795987 DOI: 10.1021/acsami.3c07947] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
The utilization of hydrogen (H2) as a fuel source is hindered by the limited infrastructure and storage requirements. In contrast, ammonia (NH3) offers a promising solution as a hydrogen carrier due to its high energy density, liquid storage capacity, low cost, and sustainable manufacturing. NH3 has garnered significant attention as a key component in the development of next-generation refueling stations, aligning with the goal of a carbon-free economy. The electrochemical nitrogen reduction reaction (ENRR) enables the production of NH3 from nitrogen (N2) under ambient conditions. However, the low efficiency of the ENRR is limited by challenges such as the electron-stealing hydrogen evolution reaction (HER) and the breaking of the stable N2 triple bond. To address these limitations and enhance ENRR performance, we prepared Au@Cu2-xSe electrocatalysts with a core@shell structure using a seed-mediated growth method and a facile hot-injection method. The catalytic activity was evaluated using both an aqueous electrolyte of KOH solution and a nonaqueous electrolyte consisting of tetrahydrofuran (THF) solvent with lithium perchlorate and ethanol as proton donors. ENRR in both aqueous and nonaqueous electrolytes was facilitated by the synergistic interaction between Au and Cu2-xSe (copper selenide), forming an Ohmic junction between the metal and p-type semiconductor that effectively suppressed the HER. Furthermore, in nonaqueous conditions, the Cu vacancies in the Cu2-xSe layer of Au@Cu2-xSe promoted the formation of lithium nitride (Li3N), leading to improved NH3 production. The synergistic effect of Ohmic junctions and Cu vacancies in Au@Cu2-xSe led to significantly higher ammonia yield and faradaic efficiency (FE) in nonaqueous systems compared to those in aqueous conditions. The maximum NH3 yields were approximately 1.10 and 3.64 μg h-1 cm-2, with the corresponding FE of 2.24 and 67.52% for aqueous and nonaqueous electrolytes, respectively. This study demonstrates an attractive strategy for designing catalysts with increased ENRR activity by effectively engineering vacancies and heterojunctions in Cu-based electrocatalysts in both aqueous and nonaqueous media.
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Affiliation(s)
- Yujin Jeong
- Hydrogen Energy Technology Laboratory, Korea Institute of Energy Technology (KENTECH), 200 Hyeoksin-ro, Naju, Jeonnam 58330, Republic of Korea
| | - Gnanaprakasam Janani
- Hydrogen Energy Technology Laboratory, Korea Institute of Energy Technology (KENTECH), 200 Hyeoksin-ro, Naju, Jeonnam 58330, Republic of Korea
| | - Dohun Kim
- Department of Energy Science & Engineering, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu 42988, Republic of Korea
| | - Tae-Yong An
- Hydrogen Energy Technology Laboratory, Korea Institute of Energy Technology (KENTECH), 200 Hyeoksin-ro, Naju, Jeonnam 58330, Republic of Korea
| | - Subramani Surendran
- Hydrogen Energy Technology Laboratory, Korea Institute of Energy Technology (KENTECH), 200 Hyeoksin-ro, Naju, Jeonnam 58330, Republic of Korea
| | - Hyunjung Lee
- Hydrogen Energy Technology Laboratory, Korea Institute of Energy Technology (KENTECH), 200 Hyeoksin-ro, Naju, Jeonnam 58330, Republic of Korea
| | - Dae Jun Moon
- Hydrogen Energy Technology Laboratory, Korea Institute of Energy Technology (KENTECH), 200 Hyeoksin-ro, Naju, Jeonnam 58330, Republic of Korea
| | - Joon Young Kim
- Hydrogen Energy Technology Laboratory, Korea Institute of Energy Technology (KENTECH), 200 Hyeoksin-ro, Naju, Jeonnam 58330, Republic of Korea
- Research Institute, NEEL Sciences, INC., Naju, Jeollanamdo 58326, Republic of Korea
| | - Mi-Kyung Han
- Department of Polymer Engineering, Graduate School, Alan G. MacDiarmid Energy Research Institute & School of Polymer Science and Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Uk Sim
- Hydrogen Energy Technology Laboratory, Korea Institute of Energy Technology (KENTECH), 200 Hyeoksin-ro, Naju, Jeonnam 58330, Republic of Korea
- Research Institute, NEEL Sciences, INC., Naju, Jeollanamdo 58326, Republic of Korea
- Center for Energy Storage System, Chonnam National University, Gwangju 61186, Republic of Korea
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Opra DP, Gnedenkov SV, Sinebryukhov SL, Sokolov AA, Podgorbunsky AB, Ustinov AY, Kuryaviy VG, Ziatdinov AM, Sergienko VI. Mesoporous Nanorods of Nickel- and Zinc-Containing TiO2(B) in Rechargeable Lithium and Sodium Current Sources. THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING 2022. [DOI: 10.1134/s0040579522050116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Zhang X, Wang Y, Wei C, Hu Y. One-step synthesis of N-doped porous wall TiO2 nanotube arrays for efficient removal of dibutyl phthalate under visible light. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Tan JZY, Gavrielides S, Maroto-Valer MM. Core-shell TiO 2-x-Cu yO microspheres for photogeneration of cyclic carbonates under simulated sunlight. NANOSCALE 2022; 14:6349-6356. [PMID: 35411888 DOI: 10.1039/d1nr08023g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Propylene carbonates are important organic solvents and feedstocks for different applications, including synthesis of polymers and Li-batteries. The generation of propylene carbonate utilising anthropogenic CO2 and renewable solar energy offers an alternative sustainable process with a closed loop carbon cycle. The development of microstructured photocatalysts with desired properties, including high degree of product selectivity, wide range of optical properties, and maximised conversion yield, plays an important role for effective production of propylene carbonate from CO2. A hierachical hollow core with a double shell of TiO2-x-Cu2O-CuO was fabricated using the versatile solvothermal-microwave synthesis method. The fabricated sample revealed effective cascading of photogenerated electrons and holes that promoted the conversion of propylene carbonate (i.e., 1.6 wt%) under 1 Sun irradiation.
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Affiliation(s)
- Jeannie Z Y Tan
- Research Centre for Carbon Solutions (RCCS), Heriot-Watt University, Edinburgh EH14 4AS, UK.
| | - Stelios Gavrielides
- Research Centre for Carbon Solutions (RCCS), Heriot-Watt University, Edinburgh EH14 4AS, UK.
| | - M Mercedes Maroto-Valer
- Research Centre for Carbon Solutions (RCCS), Heriot-Watt University, Edinburgh EH14 4AS, UK.
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Rahman S, Nawaz R, Khan JA, Ullah H, Irfan M, Glowacz A, Lyp-Wronska K, Wzorek L, Asif Khan MK, Jalalah M, Alsaiari MA, Almawgani AH. Synthesis and Characterization of Carbon and Carbon-Nitrogen Doped Black TiO 2 Nanomaterials and Their Application in Sonophotocatalytic Remediation of Treated Agro-Industrial Wastewater. MATERIALS 2021; 14:ma14206175. [PMID: 34683764 PMCID: PMC8538577 DOI: 10.3390/ma14206175] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 10/12/2021] [Accepted: 10/15/2021] [Indexed: 11/29/2022]
Abstract
The conventional open ponding system employed for palm oil mill agro-effluent (POME) treatment fails to lower the levels of organic pollutants to the mandatory standard discharge limits. In this work, carbon doped black TiO2 (CB-TiO2) and carbon-nitrogen co-doped black TiO2 (CNB-TiO2) were synthesized via glycerol assisted sol-gel techniques and employed for the remediation of treated palm oil mill effluent (TPOME). Both the samples were anatase phase, with a crystallite size of 11.09–22.18 nm, lower bandgap of 2.06–2.63 eV, superior visible light absorption ability, and a high surface area of 239.99–347.26 m2/g. The performance of CNB-TiO2 was higher (51.48%) compared to only (45.72%) CB-TiO2. Thus, the CNB-TiO2 is employed in sonophotocatalytic reactions. Sonophotocatalytic process based on CNB-TiO2, assisted by hydrogen peroxide (H2O2), and operated at an ultrasonication (US) frequency of 30 kHz and 40 W power under visible light irradiation proved to be the most efficient for chemical oxygen demand (COD) removal. More than 90% of COD was removed within 60 min of sonophotocatalytic reaction, producing the effluent with the COD concentration well below the stipulated permissible limit of 50 mg/L. The electrical energy required per order of magnitude was estimated to be only 177.59 kWh/m3, indicating extreme viability of the proposed process for the remediation of TPOME.
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Affiliation(s)
- Saifur Rahman
- Electrical Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran 61441, Saudi Arabia; (S.R.); (M.I.); (M.J.); (A.H.A.)
| | - Rab Nawaz
- Fundamental and Applied Sciences (FASD), Universiti Teknologi PETRONAS (UTP), Seri Iskandar 32610, Malaysia;
- Centre of Innovative Nanostructures and Nanodevices (COINN), Institute of Autonomous System, Universiti Teknologi PETRONAS (UTP), Seri Iskandar 32610, Malaysia
- Correspondence: (R.N.); (J.A.K.); Tel.: +60-14-305-6299 or +92-30-0568-6547 (R.N.); +60-16-958-2343 (J.A.K.)
| | - Javed Akbar Khan
- Mechanical Engineering Department, Universiti Teknologi Petronas, Seri Iskandar 32610, Malaysia
- Correspondence: (R.N.); (J.A.K.); Tel.: +60-14-305-6299 or +92-30-0568-6547 (R.N.); +60-16-958-2343 (J.A.K.)
| | - Habib Ullah
- Fundamental and Applied Sciences (FASD), Universiti Teknologi PETRONAS (UTP), Seri Iskandar 32610, Malaysia;
| | - Muhammad Irfan
- Electrical Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran 61441, Saudi Arabia; (S.R.); (M.I.); (M.J.); (A.H.A.)
| | - Adam Glowacz
- Department of Automatic Control and Robotics, Faculty of Electrical Engineering, Automatics, Computer Science and Biomedical Engineering, AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Kraków, Poland;
| | - Katarzyna Lyp-Wronska
- Department of Materials Science and Non-Ferrous Metal Engineering, Faculty of Non-Ferrous Metals, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland;
| | - Lukasz Wzorek
- Wzorek.Systems, ul. Kapelanka 10/18, 30-347 Kraków, Poland;
| | - Mohammad Kamal Asif Khan
- Mechanical Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran 11001, Saudi Arabia;
| | - Mohammed Jalalah
- Electrical Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran 61441, Saudi Arabia; (S.R.); (M.I.); (M.J.); (A.H.A.)
| | - Mabkhoot A. Alsaiari
- Empty Qaurter Research Unit, Chemistry Department, College of Science and Art at Sharurah, Najran University Saudi Arabia, Najran 61441, Saudi Arabia;
| | - Abdulkarem H. Almawgani
- Electrical Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran 61441, Saudi Arabia; (S.R.); (M.I.); (M.J.); (A.H.A.)
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Opra DP, Gnedenkov SV, Sinebryukhov SL, Gerasimenko AV, Ziatdinov AM, Sokolov AA, Podgorbunsky AB, Ustinov AY, Kuryavyi VG, Mayorov VY, Tkachenko IA, Sergienko VI. Enhancing Lithium and Sodium Storage Properties of TiO 2(B) Nanobelts by Doping with Nickel and Zinc. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1703. [PMID: 34203554 PMCID: PMC8306191 DOI: 10.3390/nano11071703] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 06/23/2021] [Accepted: 06/24/2021] [Indexed: 11/16/2022]
Abstract
Nickel- and zinc-doped TiO2(B) nanobelts were synthesized using a hydrothermal technique. It was found that the incorporation of 5 at.% Ni into bronze TiO2 expanded the unit cell by 4%. Furthermore, Ni dopant induced the 3d energy levels within TiO2(B) band structure and oxygen defects, narrowing the band gap from 3.28 eV (undoped) to 2.70 eV. Oppositely, Zn entered restrictedly into TiO2(B), but nonetheless, improves its electronic properties (Eg is narrowed to 3.21 eV). The conductivity of nickel- (2.24 × 10-8 S·cm-1) and zinc-containing (3.29 × 10-9 S·cm-1) TiO2(B) exceeds that of unmodified TiO2(B) (1.05 × 10-10 S·cm-1). When tested for electrochemical storage, nickel-doped mesoporous TiO2(B) nanobelts exhibited improved electrochemical performance. For lithium batteries, a reversible capacity of 173 mAh·g-1 was reached after 100 cycles at the current load of 50 mA·g-1, whereas, for unmodified and Zn-doped samples, around 140 and 151 mAh·g-1 was obtained. Moreover, Ni doping enhanced the rate capability of TiO2(B) nanobelts (104 mAh·g-1 at a current density of 1.8 A·g-1). In terms of sodium storage, nickel-doped TiO2(B) nanobelts exhibited improved cycling with a stabilized reversible capacity of 97 mAh·g-1 over 50 cycles at the current load of 35 mA·g-1.
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Affiliation(s)
- Denis P. Opra
- Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia; (S.V.G.); (S.L.S.); (A.V.G.); (A.M.Z.); (A.A.S.); (A.B.P.); (A.Y.U.); (V.G.K.); (V.Y.M.); (I.A.T.); (V.I.S.)
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Tan JZY, Gavrielides S, Belekoukia M, Thompson WA, Negahdar L, Xia F, Maroto-Valer MM, Beale AM. Synthesis of TiO 2-x/W 18O 49 hollow double-shell and core-shell microspheres for CO 2 photoreduction under visible light. Chem Commun (Camb) 2020; 56:12150-12153. [PMID: 32909021 DOI: 10.1039/d0cc04036c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
TiO2-x/W18O49 with core-shell or double-shelled hollow microspheres were synthesized through a facile multi-step solvothermal method. The formation of the hollow microspheres with a double-shell was a result of the Kirkendall effect during the solvothermal treatment with concentrated NaOH. The advanced architecture significantly enhanced the electronic properties of TiO2-x/W18O49, improving by more than 30 times the CO2 photoreduction efficiency compared to the pristine W18O49. Operando DRIFTS measurements revealed that the yellow TiO2-x was a preferable CO2 adsorption and conversion site.
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Affiliation(s)
- Jeannie Z Y Tan
- Research Centre for Carbon Solutions (RCCS), Heriot-Watt University, Edinburgh EH14 4AS, UK.
| | - Stelios Gavrielides
- Research Centre for Carbon Solutions (RCCS), Heriot-Watt University, Edinburgh EH14 4AS, UK.
| | - Meltiani Belekoukia
- Research Centre for Carbon Solutions (RCCS), Heriot-Watt University, Edinburgh EH14 4AS, UK.
| | - Warren A Thompson
- Research Centre for Carbon Solutions (RCCS), Heriot-Watt University, Edinburgh EH14 4AS, UK.
| | - Leila Negahdar
- Department of Chemistry, UCL, 20 Gordon Street, London, WC1H 0AJ, UK and UK Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Oxfordshire OX11 0FA, UK
| | - Fang Xia
- College of Science, Health, Engineering and Education, Murdoch University, Murdoch, Western Australia 6150, Australia
| | - M Mercedes Maroto-Valer
- Research Centre for Carbon Solutions (RCCS), Heriot-Watt University, Edinburgh EH14 4AS, UK.
| | - Andrew M Beale
- Department of Chemistry, UCL, 20 Gordon Street, London, WC1H 0AJ, UK and UK Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Oxfordshire OX11 0FA, UK
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Kim N, Raj MR, Lee G. Nitrogen-doped TiO 2(B) nanobelts enabling enhancement of electronic conductivity and efficiency of lithium-ion storage. NANOTECHNOLOGY 2020; 31:415401. [PMID: 32580178 DOI: 10.1088/1361-6528/ab9fb6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
To enhance the intrinsic electrical conductivities of TiO2(B) nanobelts, nitrogen(N)-doped TiO2(B) nanobelts (N-TNB) were prepared in this study by a facile and cost-effective hydrothermal method using urea as the nitrogen source with TiO2 (P25) nanoparticles. x-ray photoelectron spectroscopy confirmed that the N-atoms preferentially occupied up to ∼0.516 atom% in the interstitial sites of the N-TNB and the maximum concentration of substituted-N bonds in the N-TNB was ∼0.154 atom%, thereby the total concentration of doped nitrogen elements of ∼0.67 atom% improved the high intrinsic electrical conductivity and ionic diffusivity of the TiO2(B) nanobelts. The as-prepared N-TNB electrode delivered the highest specific capacity of 133.9 mAh g-1 in the first cycle, with an exceptional cyclic capacity retention at an ultrafast current rate of 1000 mA g-1; this is not less than 51% after 500 cycles and represents an excellent rate capability of ∼37 mAh g-1 at an ultra-high rate of 40 C. These values are among the best ever reported on comparison of the delivered highest discharge capacity of N-TNB at 1000 mA g-1 and high-rate capabilities of its Li+ ion storage with the literature data for N-TNB (∼231.5 mAh g-1 at a very low current density of 16.75 mA g-1, ∼0.1 C) of similar materials used in sodium-ion batteries. This implies the potential feasibility of these N-TNB as high-capacity anode materials for next-generation, high-energy-density, electrochemical energy-storage devices.
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Affiliation(s)
- Nangyeong Kim
- Advanced Energy Materials Design Lab, School of Chemical Engineering, Yeungnam University, Gyeongsan-Si 38541 Republic of Korea
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11
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Wang Y, Zhang X, You S, Hu Y. One-step electrosynthesis of visible light responsive double-walled alloy titanium dioxide nanotube arrays for use in photocatalytic degradation of dibutyl phthalate. RSC Adv 2020; 10:21238-21247. [PMID: 35518757 PMCID: PMC9054373 DOI: 10.1039/d0ra03627g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 05/27/2020] [Indexed: 11/21/2022] Open
Abstract
Using Ti-6Al-4V (TC4) alloy as a substrate, double-walled alloy titanium dioxide nanotube arrays (DW-ATNTAs) with a special porous inner wall and visible light response are synthesized in situ by an improved anodization method. During the anodization, the V element in the TC4 alloy converts into V2O5 which dominates the visible light response of DW-ATNTAs. After 3 h of irradiation with visible light, there is a nearly 97% reduction of dibutyl phthalate (DBP) by DW-ATNTAs in which the degradation kinetic constant is 50 and 7 times higher than that of titanium dioxide nanotube arrays (TNTAs) and alloy titanium dioxide layers (A-TiO2(plate)), respectively. The richly porous inner wall structure of DW-ATNTAs can provide sufficient vacancies for adsorption and active sites for photocatalytic reaction. Furthermore, the differences in the morphology of the inner and outer walls are attributed to the thicker carbon and fluorine-rich oxide layer (C, F-rich oxide layer) resulting from a longer time that the inner wall spends in contact with the electrolyte during the anodization process. This special porous inner wall structure was formed due to the anti-corrosion properties of the alloy caused by appropriate amounts of V and Al as well as the removal of C and F elements during the calcination process.
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Affiliation(s)
- Yuan Wang
- School of Environment and Energy, South China University of Technology Guangzhou 510006 P. R. China +86-20-3938-0573
| | - Xueke Zhang
- School of Environment and Energy, South China University of Technology Guangzhou 510006 P. R. China +86-20-3938-0573
| | - Suzhen You
- School of Environment and Energy, South China University of Technology Guangzhou 510006 P. R. China +86-20-3938-0573
| | - Yun Hu
- School of Environment and Energy, South China University of Technology Guangzhou 510006 P. R. China +86-20-3938-0573.,Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control Guangzhou 510006 P. R. China.,The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education Guangzhou 510006 P. R. China
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12
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Yin Z, Wang Z, Wang J, Wang X, Song T, Wang Z, Ma Y. HF promoted increased nitrogen doping in TiO 2(B) photocatalyst. Chem Commun (Camb) 2020; 56:5609-5612. [PMID: 32297618 DOI: 10.1039/d0cc01388a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Increased nitrogen doping in TiO2(B) with obviously enhanced visible light absorption ability was achieved via a facile pretreatment of HF followed by an annealing process in NH3. The optimized samples showed a 2.8 times photocatalytic hydrogen evolution rate and 4.2 times RhB degradation rate compared with the original TiO2(B).
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Affiliation(s)
- Zhiguang Yin
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, China.
| | - Zihao Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, China.
| | - Jiani Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, China.
| | - Xinyu Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, China.
| | - Tingting Song
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, China.
| | - Zenglin Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, China.
| | - Yi Ma
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, China.
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Synergistic effect of N-doping and rich oxygen vacancies induced by nitrogen plasma endows TiO2 superior sodium storage performance. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.04.051] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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14
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Nie S, Liu L, Liu J, Xie J, Zhang Y, Xia J, Yan H, Yuan Y, Wang X. Nitrogen-Doped TiO 2-C Composite Nanofibers with High-Capacity and Long-Cycle Life as Anode Materials for Sodium-Ion Batteries. NANO-MICRO LETTERS 2018. [PMID: 30393719 DOI: 10.1016/j.jallcom.2018.09.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Nitrogen-doped TiO2-C composite nanofibers (TiO2/N-C NFs) were manufactured by a convenient and green electrospinning technique in which urea acted as both the nitrogen source and a pore-forming agent. The TiO2/N-C NFs exhibit a large specific surface area (213.04 m2 g-1) and a suitable nitrogen content (5.37 wt%). The large specific surface area can increase the contribution of the extrinsic pseudocapacitance, which greatly enhances the rate capability. Further, the diffusion coefficient of sodium ions (D Na+) could be greatly improved by the incorporation of nitrogen atoms. Thus, the TiO2/N-C NFs display excellent electrochemical properties in Na-ion batteries. A TiO2/N-C NF anode delivers a high reversible discharge capacity of 265.8 mAh g-1 at 0.05 A g-1 and an outstanding long cycling performance even at a high current density (118.1 mAh g-1) with almost no capacity decay at 5 A g-1 over 2000 cycles. Therefore, this work sheds light on the application of TiO2-based materials in sodium-ion batteries.
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Affiliation(s)
- Su Nie
- National Base for International Science and Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, People's Republic of China
| | - Li Liu
- National Base for International Science and Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, People's Republic of China.
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, 300071, People's Republic of China.
| | - Junfang Liu
- National Base for International Science and Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, People's Republic of China
| | - Jianjun Xie
- National Base for International Science and Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, People's Republic of China
| | - Yue Zhang
- National Base for International Science and Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, People's Republic of China
| | - Jing Xia
- National Base for International Science and Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, People's Republic of China
| | - Hanxiao Yan
- National Base for International Science and Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, People's Republic of China
| | - Yiting Yuan
- National Base for International Science and Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, People's Republic of China
| | - Xianyou Wang
- National Base for International Science and Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, People's Republic of China
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15
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Nie S, Liu L, Liu J, Xie J, Zhang Y, Xia J, Yan H, Yuan Y, Wang X. Nitrogen-Doped TiO 2-C Composite Nanofibers with High-Capacity and Long-Cycle Life as Anode Materials for Sodium-Ion Batteries. NANO-MICRO LETTERS 2018; 10:71. [PMID: 30393719 PMCID: PMC6199118 DOI: 10.1007/s40820-018-0225-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 09/20/2018] [Indexed: 05/05/2023]
Abstract
Nitrogen-doped TiO2-C composite nanofibers (TiO2/N-C NFs) were manufactured by a convenient and green electrospinning technique in which urea acted as both the nitrogen source and a pore-forming agent. The TiO2/N-C NFs exhibit a large specific surface area (213.04 m2 g-1) and a suitable nitrogen content (5.37 wt%). The large specific surface area can increase the contribution of the extrinsic pseudocapacitance, which greatly enhances the rate capability. Further, the diffusion coefficient of sodium ions (D Na+) could be greatly improved by the incorporation of nitrogen atoms. Thus, the TiO2/N-C NFs display excellent electrochemical properties in Na-ion batteries. A TiO2/N-C NF anode delivers a high reversible discharge capacity of 265.8 mAh g-1 at 0.05 A g-1 and an outstanding long cycling performance even at a high current density (118.1 mAh g-1) with almost no capacity decay at 5 A g-1 over 2000 cycles. Therefore, this work sheds light on the application of TiO2-based materials in sodium-ion batteries.
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Affiliation(s)
- Su Nie
- National Base for International Science and Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, People's Republic of China
| | - Li Liu
- National Base for International Science and Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, People's Republic of China.
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, 300071, People's Republic of China.
| | - Junfang Liu
- National Base for International Science and Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, People's Republic of China
| | - Jianjun Xie
- National Base for International Science and Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, People's Republic of China
| | - Yue Zhang
- National Base for International Science and Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, People's Republic of China
| | - Jing Xia
- National Base for International Science and Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, People's Republic of China
| | - Hanxiao Yan
- National Base for International Science and Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, People's Republic of China
| | - Yiting Yuan
- National Base for International Science and Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, People's Republic of China
| | - Xianyou Wang
- National Base for International Science and Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, People's Republic of China
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Song W, Zhao H, Wang L, Liu S, Li Z. Co-doping Nitrogen/Sulfur through a Solid-State Reaction to Enhance the Electrochemical Performance of Anatase TiO2
Nanoparticles as a Sodium-Ion Battery Anode. ChemElectroChem 2017. [DOI: 10.1002/celc.201701015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Wei Song
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province; Taiyuan University of Technology; Taiyuan 030024 China
| | - Hanqing Zhao
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province; Taiyuan University of Technology; Taiyuan 030024 China
| | - Liqin Wang
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province; Taiyuan University of Technology; Taiyuan 030024 China
| | - Shibin Liu
- College of Chemistry and Chemical Engineering; Taiyuan University of Technology; Taiyuan 030024 China
| | - Zhong Li
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province; Taiyuan University of Technology; Taiyuan 030024 China
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17
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Yan D, Yu C, Zhang X, Li J, Li J, Lu T, Pan L. Enhanced electrochemical performances of anatase TiO2 nanotubes by synergetic doping of Ni and N for sodium-ion batteries. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.09.120] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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18
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Wang Q, Zhao C, Lu Y, Li Y, Zheng Y, Qi Y, Rong X, Jiang L, Qi X, Shao Y, Pan D, Li B, Hu YS, Chen L. Advanced Nanostructured Anode Materials for Sodium-Ion Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1701835. [PMID: 28926687 DOI: 10.1002/smll.201701835] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 08/02/2017] [Indexed: 06/07/2023]
Abstract
Sodium-ion batteries (NIBs), due to the advantages of low cost and relatively high safety, have attracted widespread attention all over the world, making them a promising candidate for large-scale energy storage systems. However, the inherent lower energy density to lithium-ion batteries is the issue that should be further investigated and optimized. Toward the grid-level energy storage applications, designing and discovering appropriate anode materials for NIBs are of great concern. Although many efforts on the improvements and innovations are achieved, several challenges still limit the current requirements of the large-scale application, including low energy/power densities, moderate cycle performance, and the low initial Coulombic efficiency. Advanced nanostructured strategies for anode materials can significantly improve ion or electron transport kinetic performance enhancing the electrochemical properties of battery systems. Herein, this Review intends to provide a comprehensive summary on the progress of nanostructured anode materials for NIBs, where representative examples and corresponding storage mechanisms are discussed. Meanwhile, the potential directions to obtain high-performance anode materials of NIBs are also proposed, which provide references for the further development of advanced anode materials for NIBs.
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Affiliation(s)
- Qidi Wang
- Division of Energy and Environment, Engineering Laboratory for the Next Generation Power and Energy Storage Batteries, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China
- School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Chenglong Zhao
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Yaxiang Lu
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Yunming Li
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Yuheng Zheng
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Yuruo Qi
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Xiaohui Rong
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Liwei Jiang
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Xinguo Qi
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Yuanjun Shao
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Du Pan
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Baohua Li
- Division of Energy and Environment, Engineering Laboratory for the Next Generation Power and Energy Storage Batteries, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China
| | - Yong-Sheng Hu
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Liquan Chen
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100190, China
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