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Article: Preparation of Porous Ellipsoidal Bismuth Oxyhalide Microspheres and Their Photocatalytic Performances.

Luo, Bing / Wu, Canfeng / Zhang, Fuzeng / Wang, Tingting / Yao, Yingbang

2022 Volume 15, Issue 17

Abstract: Well-dispersed and uniform porous ellipsoidal-shaped bismuth oxyhalides (nominal composition: 80%BiOCl/20%BiOI) microspheres were obtained by a facile solvothermal method, in which process the use of polyvinylpyrrolidone (PVP) as template agent was found ...

Abstract	Well-dispersed and uniform porous ellipsoidal-shaped bismuth oxyhalides (nominal composition: 80%BiOCl/20%BiOI) microspheres were obtained by a facile solvothermal method, in which process the use of polyvinylpyrrolidone (PVP) as template agent was found to be crucial. At 150 °C, elliptical porous particles with a particle size of 0.79 μm were formed. Instead of forming solid solutions, the study of X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) shows that the prepared 80%BiOCl/20%BiOI microspheres are composite of BiOCl and BiOI in nature and the obtained crystallite size is about 5.6 nm. The optical bandgap of 80%BiOCl/20%BiOI was measured to be 2.93 eV, which is between the bandgap values of BiOCl and BiOI. The 80%BiOCl/20%BiOI microspheres were able to decompose various organic dyes (rhodamine B-RhB, methyl orange-MO, methylene blue-MB, methyl violet-MV) under an illuminated condition with the degradation rate in the order of RhB > MB > MV > MO, and 98% of RhB can be degraded in 90 min. Radical scavenger tests showed that photogenerated holes are the main active species for the photocatalytic decomposition of all of the tested organic dyes. Our results show that the obtained porous ellipsoidal-shaped 80%BiOCl/20%BiOI microspheres are promising for the degradation of various organic pollutants under the illumination of visible light.
Language	English
Publishing date	2022-09-01
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2487261-1
ISSN	1996-1944
ISSN	1996-1944
DOI	10.3390/ma15176035
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Conversion of layered materials to ultrathin amorphous nanosheets induced by ball-milling insertion and pure-water exfoliation

Deng, Chao / Gao, Yuxuan / Yao, Yingbang / Liang, Bo / Lu, Shengguo / Tao, Tao

Journal of materials chemistry A. 2022 May 31, v. 10, no. 21

2022

Abstract: Two-dimensional nanostructures have a wide range of applications in various kinds of fields. However, the current exfoliation technology still needs to be improved for large-scale production. Here, a simple, universal two-step strategy, “ball-milling ... ...

Abstract	Two-dimensional nanostructures have a wide range of applications in various kinds of fields. However, the current exfoliation technology still needs to be improved for large-scale production. Here, a simple, universal two-step strategy, “ball-milling insertion and pure-water exfoliation”, is proposed to produce high quality ultrathin amorphous 2D nanosheets with a thickness of ∼1 nm. Such a method is available not only for a single layered material, but is extendable to its composites. The resulting amorphous multiphase heterostructure nanosheets with multiple interfaces are employed for fabricating multifunctional separators in lithium-sulfur batteries, which show an improved cycling stability at a high current of 1 A g⁻¹ and a high rate capability, due to an interfacial synergetic effect. Besides, the modified separators exhibit enhanced mechanical properties and thermal conductivity.
Keywords	nanosheets ; synergism ; thermal conductivity
Language	English
Dates of publication	2022-0531
Size	p. 11766-11773.
Publishing place	The Royal Society of Chemistry
Document type	Article
ZDB-ID	2702232-8
ISSN	2050-7496 ; 2050-7488
ISSN (online)	2050-7496
ISSN	2050-7488
DOI	10.1039/d2ta02237k
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Surface decoration of ceria nanoparticles as propane/air partial oxidation catalyst integrated in a micro-tubular solid oxide fuel cell

Guo, Jin / Yao, Yue / Yang, Wenhuan / Ma, Yue / Wang, Chengpeng / Yao, Yingbang / Tao, Tao / Lu, Shengguo / Zhao, Xiaobo / Wang, Chao / Liang, Bo

International Journal of Green Energy. 2023 Sept. 02, v. 20, no. 11 p.1204-1213

2023

Abstract: In this study, a ceria (CeO₂) support, synthesized using a hydrothermal method, was decorated with nano-sized Ni-particles using an impregnation method. A micro-tubular solid oxide fuel cell (MTSOFC) was integrated with a corundum tube, in which the Ni- ... ...

Abstract	In this study, a ceria (CeO₂) support, synthesized using a hydrothermal method, was decorated with nano-sized Ni-particles using an impregnation method. A micro-tubular solid oxide fuel cell (MTSOFC) was integrated with a corundum tube, in which the Ni-CeO₂ (10 wt% Ni) served as the catalyst for partial oxidation (POX). Using propane and air, there was no noticeable deactivation in the MTSOFC over a 48-h period. The maximum power density (MPD) was 0.57 W cm ⁻² at 700°C using propane and air (12.3 vol% propane), which is 0.01 W cm⁻² higher than the cell using 20 vol% of hydrogen (0.56 W cm ⁻²). When using propane and air as fuel and operating at 700°C, MPD values for intermediate and inlet current collector modes were 0.57 and 0.48 W cm⁻², respectively. Carbon deposition at the fuel inlet was determined to be the primary cause of low current collection efficiency.
Keywords	air ; carbon ; catalysts ; fuel cells ; fuels ; hot water treatment ; hydrogen ; nanoparticles ; oxidation ; propane ; renewable energy sources ; partial oxidation reformer ; tubular solid oxide fuel cell ; Ni decorated CeO2
Language	English
Dates of publication	2023-0902
Size	p. 1204-1213.
Publishing place	Taylor & Francis
Document type	Article ; Online
ISSN	1543-5083
DOI	10.1080/15435075.2022.2155964
Database	NAL-Catalogue (AGRICOLA)

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Article: Dielectric Tunability Properties in (110)-Oriented Epitaxial 0.5Ba(Ti

Luo, Bing / Xu, Yiwen / Zhang, Fuzeng / Wang, Tingting / Yao, Yingbang

Materials (Basel, Switzerland)

2020 Volume 13, Issue 21

Abstract: Epitaxial 0.5Ba( ... ...

Abstract	Epitaxial 0.5Ba(Ti
Language	English
Publishing date	2020-10-26
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2487261-1
ISSN	1996-1944
ISSN	1996-1944
DOI	10.3390/ma13214771
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: A Cofuel Channel Microtubular Solid Oxide Fuel/Electrolysis Cell

Yao, Yue / Ma, Yue / Wang, Chenpeng / Ye, Hao / Liu, Yinglong / Liu, Jiawei / Zhao, Xiaobo / Tao, Tao / Yao, Yingbang / Lu, Shengguo / Yang, Huazheng / Liang, Bo

Applied energy. 2022 Sept. 19,

2022

Abstract: A co-fuel channel microtubular solid oxide fuel/electrolysis cell is successfully fabricated by adding an insulating ceramic connector. The active electrode area of both of the abovementioned cells is approximately 10.73 cm². Hydrogen-steam mixtures act ... ...

Abstract	A co-fuel channel microtubular solid oxide fuel/electrolysis cell is successfully fabricated by adding an insulating ceramic connector. The active electrode area of both of the abovementioned cells is approximately 10.73 cm². Hydrogen-steam mixtures act as either reactants or products in the ceramic tubes. A ring-like anodic current collector is located in the middle of the anode, while silver paste is coated on the cathode as a cathodic current collector. When operating the cells at 750 ℃, 0.6 A cm⁻² at 0.6 V and 1.0 A cm⁻² at 1.7 V are achieved for the SOFC and SOEC, respectively. By using the co-fuel channel, the power generation of the SOFC is 3.9 W, while the simultaneous power consumption of the SOEC is 18.2 W. After 11 hours of operation, no microcracks were observed, and the anode-electrolyte interface structure exhibited no Ni agglomeration or active phase loss.
Keywords	anodes ; cathodes ; ceramics ; electrolysis ; energy ; energy use and consumption ; fuels ; power generation ; silver
Language	English
Dates of publication	2022-0919
Publishing place	Elsevier Ltd
Document type	Article
Note	Pre-press version
ZDB-ID	2000772-3
ISSN	0306-2619
ISSN	0306-2619
DOI	10.1016/j.apenergy.2022.120010
Database	NAL-Catalogue (AGRICOLA)

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Article: Propane-fuelled microtubular solid oxide fuel cell stack electrically connected by an anodic rectangular window

Liang, Bo / Yao, Yue / Guo, Jin / Yang, Huazheng / Liang, Jiajiang / Zhao, Zhijiang / Wu, Gang / Zhan, Yuedong / Zhao, Xiaobo / Tao, Tao / Yao, Yingbang / Lu, Shengguo / Ruirui, Zhao

Applied energy. 2022 Mar. 01, v. 309

2022

Abstract: A current collecting window (0.4 cm²), without an electrolyte and cathode, is located in the middle of an anode and connected electrically to the cathode of another microtubular solid oxide fuel cell (MTSOFC) when building a short stack. No apparent open- ...

Abstract	A current collecting window (0.4 cm²), without an electrolyte and cathode, is located in the middle of an anode and connected electrically to the cathode of another microtubular solid oxide fuel cell (MTSOFC) when building a short stack. No apparent open-circuit voltage (OCV) drops were observed during 31 thermal cycles for an 8-cell stack using H₂ and syngas. Furthermore, 24.1, 53.6 and 103.5 W power levels are achieved employing this current collecting mode at 700 °C for an 8, 10 and 20-cell stack, respectively. The propane-fuelled 8-cell stack has a maximum power density (MPD) of 0.30 W cm⁻² when integrated with a catalytic partial oxidation (CPOX) reformer, at a flow rate of 0.32 g min⁻¹ of propane. A Pt-Ru nanoparticle is fabricated by impregnation treatment of the alumina honeycomb ceramic support. The Pt-based catalyst, with an average size of ∼10.0 nm, is well distributed on the surface of the honeycomb ceramic channel. Moreover, Pt-Ru/Al₂O₃, as a CPOX catalyst, exhibits high propane conversions (94.2%) at 700 °C.
Keywords	aluminum oxide ; anodes ; catalysts ; cathodes ; ceramics ; electric potential difference ; electrolytes ; fuel cells ; oxidation ; propane ; synthesis gas
Language	English
Dates of publication	2022-0301
Publishing place	Elsevier Ltd
Document type	Article
ZDB-ID	2000772-3
ISSN	0306-2619
ISSN	0306-2619
DOI	10.1016/j.apenergy.2021.118404
Database	NAL-Catalogue (AGRICOLA)

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Article: Toward the Growth of Self-Catalyzed ZnO Nanowires Perpendicular to the Surface of Silicon and Glass Substrates, by Pulsed Laser Deposition.

ElZein, Basma / Yao, Yingbang / Barham, Ahmad S / Dogheche, Elhadj / Jabbour, Ghassan E

Materials (Basel, Switzerland)

2020 Volume 13, Issue 19

Abstract: Vertically-oriented zinc oxide (ZnO) nanowires were synthesized on glass and silicon substrates by Pulsed Laser Deposition and without the use of a catalyst. An intermediate c-axis oriented nanotextured ZnO seed layer in the form of nanowall network with ...

Abstract	Vertically-oriented zinc oxide (ZnO) nanowires were synthesized on glass and silicon substrates by Pulsed Laser Deposition and without the use of a catalyst. An intermediate c-axis oriented nanotextured ZnO seed layer in the form of nanowall network with honey comb structure allows the growth of high quality, self-forming, and vertically-oriented nanowires at relatively low temperature (<400 °C) and under argon atmosphere at high pressure (>5 Torr). Many parameters were shown to affect the growth of the ZnO nanowires such as gas pressure, substrate-target distance, and laser energy. Growth of a c-axis-crystalline array of nanowires growing vertically from the energetically favorable sites on the seed layer is observed. Nucleation occurs due to the matching lattice structure and the polar nature of the ZnO seed layer. Morphological, structural, and optical properties were investigated. X-ray diffraction (XRD) revealed highly c-axis aligned nanowires along the (002) crystal plane. Room temperature photoluminescence (PL) measurements showed a strong and narrow bandwidth of Ultraviolet (UV) emission, which shifts to lower wavelength with the increase of pressure.
Language	English
Publishing date	2020-10-05
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2487261-1
ISSN	1996-1944
ISSN	1996-1944
DOI	10.3390/ma13194427
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Toward High Micro-Supercapacitive Performance by Constructing Graphene-Supported NiMoS4 Hybrid Materials on 3D Current Collectors

Wei, Min / Wu, Xudong / Yao, Yingbang / Yu, Shuhui / Sun, Rong / Wong, ChingPing

ACS sustainable chemistry & engineering. 2019 Nov. 10, v. 7, no. 24

2019

Abstract: NiMoS4 with an amorphous phase was deposited on the surface of reduced graphene oxide (rGO) to form a NiMoS4–rGO composite through a facile hydrothermal process. To maximize the loading of active materials, interdigitated electrodes were patterned on a ... ...

Abstract	NiMoS4 with an amorphous phase was deposited on the surface of reduced graphene oxide (rGO) to form a NiMoS4–rGO composite through a facile hydrothermal process. To maximize the loading of active materials, interdigitated electrodes were patterned on a three-dimensional (3D) nickel foam using direct-laser cutting. The active material (NiMoS4–rGO) was applied into the interdigitated nickel foam collector, which exhibits a high capacitance (1000 F g–1 at 1 A g–1) in an ionic liquid electrolyte and superior cycling performance (specific capacity retention of 96.05% at 8 A g–1over 5000 cycles). Owing to the synergistic effect of three-dimensional nickel foam with the amorphous structured NiMoS4–rGO, the coplanar 3D micro-supercapacitor exhibits a high energy density of 69.51 W h kg–1 at a power density of 849.99 W kg–1, as well as an exceptional cycle performance (94.06% retained over 7000 cycles). The comprehensive performance of the coplanar hybrid supercapacitor developed in this study is superior in comparison with most of the previously reported ones.
Keywords	capacitance ; collectors ; cutting ; electrochemical capacitors ; electrodes ; electrolytes ; energy density ; foams ; graphene ; graphene oxide ; ionic liquids ; lasers ; nickel ; sulfides ; synergism
Language	English
Dates of publication	2019-1110
Size	p. 19779-19786.
Publishing place	American Chemical Society
Document type	Article
ISSN	2168-0485
DOI	10.1021/acssuschemeng.9b04582
Database	NAL-Catalogue (AGRICOLA)

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Article: Two-Dimensional Electron Gas at the Spinel/Perovskite Interface: Suppression of Polar Catastrophe by an Ultrathin Layer of Interfacial Defects

Ding, Junfeng / Cheng, Jianli / Dogan, Fatih / Li, Yangyang / Lin, Weinan / Yao, Yingbang / Manchon, Aurelien / Yang, Kesong / Wu, Tom

ACS applied materials & interfaces. 2020 Aug. 24, v. 12, no. 38

2020

Abstract: Two-dimensional electron gas (2DEG) at the interface between two insulating perovskite oxides has attracted much interest for both fundamental physics and potential applications. Here, we report the discovery of a new 2DEG formed at the interface between ...

Abstract	Two-dimensional electron gas (2DEG) at the interface between two insulating perovskite oxides has attracted much interest for both fundamental physics and potential applications. Here, we report the discovery of a new 2DEG formed at the interface between spinel MgAl₂O₄ and perovskite SrTiO₃. Transport measurements, electron microscopy imaging, and first-principles calculations reveal that the interfacial 2DEG is closely related to the symmetry breaking at the MgAl₂O₄/SrTiO₃ interface. The critical film thickness for the insulator-to-metal transition is approximately 32 Å, which is twice as thick as that reported on the widely studied LaAlO₃/SrTiO₃ system. Scanning transmission electron microscopy imaging indicates the formation of interfacial Ti–Al antisite defects with a thickness of ∼4 Å. First-principles density functional theory calculations indicate that the coexistence of the antisite defects and surface oxygen vacancies may explain the formation of interfacial 2DEG as well as the observed critical film thickness. The discovery of 2DEG at the spinel/perovskite interface introduces a new material platform for designing oxide interfaces with desired characteristics.
Keywords	density functional theory ; oxygen ; physics ; transmission electron microscopy
Language	English
Dates of publication	2020-0824
Size	p. 42982-42991.
Publishing place	American Chemical Society
Document type	Article
Note	NAL-AP-2-clean
ISSN	1944-8252
DOI	10.1021/acsami.0c13337
Database	NAL-Catalogue (AGRICOLA)

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Article: Highly reversible lithium storage in Li2C2 nanosheets

Fan, Ye / Deng, Chao / Gao, Yuxuan / Ding, Yi / Wu, Yuchen / Mo, Shiman / Yao, Yingbang / Liang, Bo / Lu, Shengguo / Qi, Wen / Tao, Tao

Carbon. 2021 June 15, v. 177

2021

Abstract: Using Li-carbon composites as anodes in high-energy-density lithium batteries leads to significant improvements in cycling life and safety compared with lithium metal. Li₂C₂ consisting of dumbbell anions is the most thermodynamically stable phase in the ... ...

Abstract	Using Li-carbon composites as anodes in high-energy-density lithium batteries leads to significant improvements in cycling life and safety compared with lithium metal. Li₂C₂ consisting of dumbbell anions is the most thermodynamically stable phase in the family of lithium-carbon materials, however its low conductivity is a critical obstacle to the practical applications. sp²-hybridizing carbon is one promising option for unique electronic structures. Here, Li₂C₂ alloy nanosheets composed of sp²-hybridized carbon atoms are directly formed from Li element and carbon during ball milling process, presenting a metallic feature at ambient conditions. After removing lithium from these alloy nanosheets, amorphous carbon ultrathin nanosheets are obtained. A vertically aligned Li₂C₂ nanosheet foil prepared by pressing the milled powder, can be used as free-standing, binder-free electrodes for fabricating various types of lithium batteries, and their excellent electrochemical performance is attributed to a highly reversible Li atoms uptake in amorphous carbon nanosheets.
Keywords	alloys ; carbon ; electrochemistry ; foil ; lithium ; nanosheets ; thermodynamics
Language	English
Dates of publication	2021-0615
Size	p. 357-365.
Publishing place	Elsevier Ltd
Document type	Article
Note	NAL-AP-2-clean
ISSN	0008-6223
DOI	10.1016/j.carbon.2021.02.095
Database	NAL-Catalogue (AGRICOLA)

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