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1. Nanowires for Electrochemical Energy Storage

Author:
Mai, Liqiang,   et al.   ; Zhou, Guangmin; Xu, Lin; Hu, Guangwu; Cui, Yi;     Show all 5 Authors
Source:
Chemical reviews 2019 v.119 no.20 pp. 11042-11109
ISSN:
1520-6890
Subject:
electrochemistry; electron transfer; energy; lithium batteries; nanowires
Abstract:
... Nanomaterials provide many desirable properties for electrochemical energy storage devices due to their nanoscale size effect, which could be significantly different from bulk or micron-sized materials. Particularly, confined dimensions play important roles in determining the properties of nanomaterials, such as the kinetics of ion diffusion, the magnitude of strain/stress, and the utilization of ...
DOI:
10.1021/acs.chemrev.9b00326

2. Rational Design of a Redox-Active Nonaqueous Electrolyte for a High-Energy-Density Supercapacitor Based on Carbon Nanotubes

Author:
Mai, Liqiang,   et al.   ; Park, Jinwoo; Yoo, Young-Eun; Kim, Woong;     Show all 4 Authors
Source:
ACS sustainable chemistry & engineering 2019 v.7 no.8 pp. 7728-7735
ISSN:
2168-0485
Subject:
capacitance; carbon nanotubes; electric potential difference; electrochemistry; electrolytes; energy density; redox potential; redox reactions
Abstract:
... A redox-active electrolyte supercapacitor (RAES) is a promising system that increases the energy density of a supercapacitor by providing additional pseudocapacitance, which arises from an inserted redox couple in an electrolyte. However, the energy density of RAESs is still considerably low for practical applications, and enhancing the operating voltage window as well as the capacitance of RAESs ...
DOI:
10.1021/acssuschemeng.8b06486

3. Realizing Superior Prussian Blue Positive Electrode for Potassium Storage via Ultrathin Nanosheet Assembly

Author:
Mai, Liqiang,   et al.   ; Qin, Mingsheng; Ren, Wenhao; Meng, Jiashen; Wang, Xuanpeng; Yao, Xuhui; Ke, Yajie; Li, Qi;     Show all 8 Authors
Source:
ACS sustainable chemistry & engineering 2019 v.7 no.13 pp. 11564-11570
ISSN:
2168-0485
Subject:
X-ray diffraction; batteries; electrodes; iron; longevity; nanosheets; potassium; titration
Abstract:
... Prussian blue analogues have attracted growing attention as the positive electrode materials in rechargeable potassium-ion batteries (KIBs) due to the intrinsic open frameworks and high theoretical capacities. However, the bulk synthesized Prussian blue which is accompanied by aggregation inevitably results in the limited K⁺ ion mobility and suppressed potassium storage performance. In this work, ...
DOI:
10.1021/acssuschemeng.9b01454

4. Yolk–shell Nb₂O₅ microspheres as intercalation pseudocapacitive anode materials for high-energy Li-ion capacitors

Author:
Mai, Liqiang,   et al.   ; Fu, Shida; Yu, Qiang; Liu, Zhenhui; Hu, Ping; Chen, Qiang; Feng, Shihao; Zhou, Liang;     Show all 8 Authors
Source:
Journal of materials chemistry A 2019 v.7 no.18 pp. 11234-11240
ISSN:
2050-7496
Subject:
activated carbon; anodes; cathodes; electrical equipment; energy; microparticles; niobium; oxalates; reaction kinetics; spray drying
Abstract:
... Lithium-ion capacitors (LICs) are receiving extensive attention due to their high energy/power densities. However, the imbalance in reaction kinetics between the sluggish diffusion-limited insertion anode and rapid surface-controlled capacitive cathode always leads to limited power density and poor cycling properties. Herein, yolk–shell structured orthorhombic phase Nb₂O₅ microspheres (YS-Nb₂O₅) a ...
DOI:
10.1039/c9ta02342a

5. Manganese ion pre-intercalated hydrated vanadium oxide as a high-performance cathode for magnesium ion batteries

Author:
Mai, Liqiang,   et al.   ; Deng, Xuanwei; Xu, Yanan; An, Qinyou; Xiong, Fangyu; Tan, Shuangshuang; Wu, Liming;     Show all 7 Authors
Source:
Journal of materials chemistry A 2019 v.7 no.17 pp. 10644-10650
ISSN:
2050-7496
Subject:
batteries; cathodes; chemistry; ions; magnesium; manganese; nanomaterials; vanadium
Abstract:
... The development of rechargeable magnesium ion batteries (MIBs) has received increasing attention due to its low cost, high theoretical volumetric capacities, environmental friendliness and good safety. However, one of the main challenges faced by MIBs is the difficulty in finding a suitable electrode material due to the sluggish kinetics of the magnesium ion. Herein, we report a manganese ion pre- ...
DOI:
10.1039/c8ta11236c

6. Sodium-based batteries: from critical materials to battery systems

Author:
Mai, Liqiang,   et al.   ; Li, Fang; Wei, Zengxi; Manthiram, Arumugam; Feng, Yuezhan; Ma, Jianmin;     Show all 6 Authors
Source:
Journal of materials chemistry A 2019 v.7 no.16 pp. 9406-9431
ISSN:
2050-7496
Subject:
batteries; carbon dioxide; cathodes; cell structures; electric vehicles; electrochemistry; electrolytes; energy; lithium; reaction mechanisms; selenium; sodium; sulfur
Abstract:
... Sodium-based energy storage systems are attracting tremendous attention along with the growing demand for electric vehicles and grid-scale energy storage. Sharing similar intercalation chemistry to their lithium counterpart, sodium-ion based systems show promising potential for large-scale application due to the benefit of the low cost and natural abundance of sodium sources. However, despite the ...
DOI:
10.1039/c8ta11999f

7. Hierarchical Mn₃O₄/Graphene Microflowers Fabricated via a Selective Dissolution Strategy for Alkali-Metal-Ion Storage

Author:
Mai, Liqiang,   et al.   ; Tang, Chen; Xiong, Fangyu; Yao, Xuhui; Tan, Shuangshuang; Lan, Binxu; An, Qinyou; Luo, Ping;     Show all 8 Authors
Source:
ACS applied materials & interfaces 2019 v.11 no.15 pp. 14120-14125
ISSN:
1944-8252
Subject:
anodes; batteries; lithium; manganese oxides; materials science; potassium; sodium; vanadium
Abstract:
... Mn₃O₄ is a potential anode for alkali-metal (Li/Na/K)-ion batteries because of the high capacity, abundant resources, and eco-friendliness. However, its ion storage performance is limited by poor electronic conductivity and large volume expansion during the charging/discharging process. In this study, we presented a facile dissolution strategy to fabricate ultrathin nanosheet-assembled hierarchica ...
DOI:
10.1021/acsami.9b00771

8. Monodisperse Carbon Sphere-Constructed Pomegranate-Like Structures for High-Volumetric-Capacitance Supercapacitors

Author:
Mai, Liqiang,   et al.   ; Feng, Shihao; Liu, Zhenhui; Yu, Qiang; Zhuang, Zechao; Chen, Qiang; Fu, Shida; Zhou, Liang;     Show all 8 Authors
Source:
ACS applied materials & interfaces 2019 v.11 no.4 pp. 4011-4016
ISSN:
1944-8252
Subject:
capacitance; carbon; electrodes; microparticles; porous media; surface area
Abstract:
... Porous carbons have been extensively studied in supercapacitors. However, it remains a grand challenge for porous carbons to achieve a volumetric capacitance (Cᵥ) of over 200 F cm–³ because of the low intrinsic density and limited capacitance. Herein, we propose a pomegranate-like carbon microsphere (PCS) constructed by monodisperse, submicron, N-doped microporous carbon spheres for high-volumetri ...
DOI:
10.1021/acsami.8b19901

9. Lithium Deficiencies Engineering in Li-Rich Layered Oxide Li₁.₀₉₈Mn₀.₅₃₃Ni₀.₁₁₃Co₀.₁₃₈O₂ for High-Stability Cathode

Author:
Mai, Liqiang,   et al.   ; Liu, Pengfei; Zhang, Hong; He, Wei; Xiong, Tengfei; Cheng, Yong; Xie, Qingshui; Ma, Yating; Zheng, Hongfei; Wang, Laisen; Zhu, Zi-Zhong; Peng, Yong; Peng, Dong-Liang;     Show all 13 Authors
Source:
Journal of the American Chemical Society 2019 v.141 no.27 pp. 10876-10882
ISSN:
1520-5126
Subject:
cathodes; coatings; lithium; nickel; oxides; prototypes
Abstract:
... Li-rich layered oxides have been in focus because of their high specific capacity. However, they usually suffer from poor kinetics, severe voltage decay, and capacity fading. Herein, a long-neglected Li-deficient method is demonstrated to address these problems by simply reducing the lithium content. Appropriate lithium vacancies can improve dynamics features and induce in situ surface spinel coat ...
DOI:
10.1021/jacs.9b04974

10. Interconnected Vertically Stacked 2D-MoS₂ for Ultrastable Cycling of Rechargeable Li-Ion Battery

Author:
Mai, Liqiang,   et al.   ; Sun, Congli; Zhao, Kangning; He, Yang; Zheng, Jianming; Xu, Wangwang; Zhang, Chenyu; Wang, Xiang; Guo, Mohan; Wang, Chongmin; Gu, Meng;     Show all 11 Authors
Source:
ACS applied materials & interfaces 2019 v.11 no.23 pp. 20762-20769
ISSN:
1944-8252
Subject:
electrochemistry; energy; graphene; lithium; lithium batteries; molybdenum disulfide; nanoflowers; nanosheets; transmission electron microscopy
Abstract:
... A two-dimensional (2D) layer-structured material is often a high-capacity ionic storage material with fast ionic transport within the layers. This appears to be the case for nonconversion layer structure, such as graphite. However, this is not the case for conversion-type layered structure such as transition-metal sulfide, in which localized congestion of ionic species adjacent to the surface will ...
DOI:
10.1021/acsami.9b02359

11. Spray-pyrolysis-assisted synthesis of yolk@shell anatase with rich oxygen vacancies for efficient sodium storage

Author:
Mai, Liqiang,   et al.   ; Chen, Zhuo; Xu, Linhan; Chen, Qiang; Hu, Ping; Liu, Zhenhui; Yu, Qiang; Zhu, Ting; Liu, Huancheng; Hu, Guangwu; Zhu, Zizhong; Zhou, Liang;     Show all 12 Authors
Source:
Journal of materials chemistry A 2019 v.7 no.12 pp. 6740-6746
ISSN:
2050-7496
Subject:
chemistry; electrical conductivity; electrodes; energy; hydrogen; microparticles; oxygen; sodium; titanium dioxide
Abstract:
... Herein, yolk@shell structured anatase TiO₂ microspheres are produced by a facile spray-pyrolysis-assisted method. Through introducing oxygen vacancies by hydrogen treatment, yolk@shell structured TiO₂₋ₓ microspheres are also obtained. The as-synthesized yolk@shell TiO₂₋ₓ demonstrates a high reversible capacity (230.7 mA h g⁻¹ after 200 cycles at 0.05 A g⁻¹) and remarkable long-term cycling stabili ...
DOI:
10.1039/c8ta11440d

12. Silicon oxides: a promising family of anode materials for lithium-ion batteries

Author:
Mai, Liqiang,   et al.   ; LiuThese authors contributed equally to this work., Zhenhui; Yu, Qiang; Zhao, Yunlong; He, Ruhan; Xu, Ming; Feng, Shihao; Li, Shidong; Zhou, Liang;     Show all 9 Authors
Source:
Chemical Society reviews 2019 v.48 no.1 pp. 285-309
ISSN:
1460-4744
Subject:
anodes; lithium; lithium batteries; silicon
Abstract:
... Silicon oxides have been recognized as a promising family of anode materials for high-energy lithium-ion batteries (LIBs) owing to their abundant reserve, low cost, environmental friendliness, easy synthesis, and high theoretical capacity. However, the extended application of silicon oxides is severely hampered by the intrinsically low conductivity, large volume change, and low initial coulombic e ...
DOI:
10.1039/c8cs00441b

13. Lithium- and Magnesium-Storage Mechanisms of Novel Hexagonal NbSe₂

Author:
Mai, Liqiang,   et al.   ; Peng, Chen; Lyu, Haoying; Wu, Lu; Xiong, Tengfei; Xiong, Fangyu; Liu, Ziang; An, Qinyou;     Show all 8 Authors
Source:
ACS applied materials & interfaces 2018 v.10 no.43 pp. 36988-36995
ISSN:
1944-8252
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; cathodes; electrochemistry; lithium batteries; magnesium; materials science; scanning electron microscopy; transmission electron microscopy
Abstract:
... As a novel and potential transition metal dichalcogenide (TMDC), NbSe₂ has low ion diffusion barrier when applied in energy-storage systems, such as traditional lithium-ion batteries and novel magnesium-ion batteries (MIBs). In this work, we have developed a novel hexagonal NbSe₂ material with a nanosized surface via a facile microwave–hydrothermal method. The Li⁺-storage mechanism of NbSe₂ with s ...
DOI:
10.1021/acsami.8b12662

14. General and precise carbon confinement of functional nanostructures derived from assembled metal–phenolic networks for enhanced lithium storage

Author:
Mai, Liqiang,   et al.   ; Xiao, Zhitong; Meng, Jiashen; Li, Qi; Zhang, Xiao; Liu, Ziang; Wen, Bo; Han, Chunhua;     Show all 8 Authors
Source:
Journal of materials chemistry 2018 v.6 no.38 pp. 18605-18614
ISSN:
2050-7496
Subject:
carbon; coatings; electrochemistry; electrodes; energy; ferric oxide; ligands; lithium; metal ions; nanomaterials; pyrolysis; tin dioxide
Abstract:
... Carbon coating strategies have been widely used to enhance the electrochemical performance of electrode materials. However, several issues, including substrate material selectivity, hard control on precise coatings and a limited enhancement of electronic conductivity, hinder the conventional strategies from further practical application. Here, we develop a general, facile and programmable strategy ...
DOI:
10.1039/c8ta06279j

15. Ultrafine SiOₓ/C nanospheres and their pomegranate-like assemblies for high-performance lithium storage

Author:
Mai, Liqiang,   et al.   ; Yu, Qiang; Ge, Peipei; Liu, Zhenhui; Xu, Ming; Yang, Wei; Zhou, Liang; Zhao, Dongyuan;     Show all 8 Authors
Source:
Journal of materials chemistry 2018 v.6 no.30 pp. 14903-14909
ISSN:
2050-7496
Subject:
anodes; lithium; lithium batteries; nanospheres; spray drying
Abstract:
... The application of silicon oxide (SiOₓ)-based anode materials in lithium-ion batteries is hampered by their low conductivity and large volume expansion. To tackle both issues, ultrafine SiOₓ/C composite nanospheres with a uniform diameter of ∼40 nm were fabricated through a tri-component co-assembly approach. The ultrafine SiOₓ/C nanospheres demonstrated a high specific capacity of 895 mA h g⁻¹ af ...
DOI:
10.1039/c8ta03987a

16. Boosting the Deep Discharging/Charging Lithium Storage Performances of Li3VO4 through Double-Carbon Decoration

Author:
Mai, Liqiang,   et al.   ; Liu, Huancheng; Hu, Ping; Yu, Qiang; Liu, Zhenhui; Zhu, Ting; Luo, Wen; Zhou, Liang;     Show all 8 Authors
Source:
ACS applied materials & interfaces 2018 v.10 no.28 pp. 23938-23944
ISSN:
1944-8252
Subject:
X-ray diffraction; anodes; electrical conductivity; electron transfer; graphene; graphene oxide; lithium; lithium batteries; microparticles; reaction mechanisms; spray drying; titanium dioxide
Abstract:
... With high theoretical capacity, good ionic conductivity, and suitable working plateaus, Li₃VO₄ has emerged as an eye-catching intercalation anode material for lithium storage. However, Li₃VO₄ suffers from poor electrical conductivity and 20% volume variation under deep discharging/charging conditions. Herein, we present a “double-carbon decoration” strategy to tackle both issues. Deflated balloon- ...
DOI:
10.1021/acsami.8b08483

17. Novel layered iron vanadate cathode for high-capacity aqueous rechargeable zinc batteries

Author:
Mai, Liqiang,   et al.   ; Peng, Zhuo; Wei, Qiulong; Tan, Shuangshuang; He, Pan; Luo, Wen; An, Qinyou;     Show all 7 Authors
Source:
Chemical communications 2018 v.54 no.32 pp. 4041-4044
ISSN:
1364-548X
Subject:
batteries; cathodes; chemical reactions; iron; nanosheets; zinc
Abstract:
... A layered iron vanadate Fe₅V₁₅O₃₉(OH)₉·9H₂O nanosheet is first introduced to an aqueous zinc battery system as a cathode material, which delivers a high capacity of 385 mA h g⁻¹ at 0.1 A g⁻¹ and remarkable cycling performance at high current density (over 80% capacity retention after 300 cycles at 5 A g⁻¹). ...
DOI:
10.1039/c8cc00987b

18. Heterostructured Bi2S3–Bi2O3 Nanosheets with a Built-In Electric Field for Improved Sodium Storage

Author:
Mai, Liqiang,   et al.   ; Luo, Wen; Li, Feng; Li, Qidong; Wang, Xuanpeng; Yang, Wei; Zhou, Liang;     Show all 7 Authors
Source:
ACS applied materials & interfaces 2018 v.10 no.8 pp. 7201-7207
ISSN:
1944-8252
Subject:
anodes; batteries; catalytic activity; electric field; electrochemistry; electronics; energy conversion; nanosheets; physicochemical properties; sodium
Abstract:
... Constructing novel heterostructures has great potential in tuning the physical/chemical properties of functional materials for electronics, catalysis, as well as energy conversion and storage. In this work, heterostructured Bi₂S₃–Bi₂O₃ nanosheets (BS–BO) have been prepared through an easy water-bath approach. The formation of such unique BS–BO heterostructures was achieved through a controllable t ...
DOI:
10.1021/acsami.8b01613

19. Porous V₂O₅ microspheres: a high-capacity cathode material for aqueous zinc–ion batteries

Author:
Mai, Liqiang,   et al.   ; HuP. Hu, T. Zhu, and J. X. Ma contributed equally to this work., Ping; Zhu, Ting; Ma, Jingxuan; Cai, Congcong; Hu, Guangwu; Wang, Xuanpeng; Liu, Ziang; Zhou, Liang;     Show all 9 Authors
Source:
Chemical communications 2019 v.55 no.58 pp. 8486-8489
ISSN:
1364-548X
Subject:
batteries; cathodes; chemical compounds; chemical reactions; electrochemistry; microparticles; specific energy; spray drying
Abstract:
... Porous V₂O₅ microspheres are synthesized via spray-drying and employed as the cathode material for aqueous zinc–ion batteries (ZIBs). The obtained porous V₂O₅ microspheres exhibit an ultrahigh reversible capacity and superior rate and cycling performances. In particular, a discharge capacity of 401 mA h g⁻¹ can be achieved at 100 mA g⁻¹. The specific energy density reaches 286 W h kg⁻¹, surpassing ...
DOI:
10.1039/c9cc04053f

20. Boosting oxygen reduction activity with low-temperature derived high-loading atomic cobalt on nitrogen-doped graphene for efficient Zn–air batteries

Author:
Mai, Liqiang,   et al.   ; LiThese authors contributed equally to this work., Jiantao; Liu, Haoyun; Wang, Manman; Lin, Chao; Yang, Wei; Meng, Jiashen; Xu, Yanan; Owusu, Kwadwo Asare; Jiang, Benli; Chen, Chuanxi; Fan, Danian; Zhou, Liang;     Show all 13 Authors
Source:
Chemical communications 2019 v.55 no.3 pp. 334-337
ISSN:
1364-548X
Subject:
cobalt; zinc; catalysts; electrochemistry; air; pyrolysis; graphene; temperature; oxygen; batteries
Abstract:
... High-loading atomic cobalt (12.8 wt%) dispersed on nitrogen-doped graphene was successfully synthesized via considerably low temperature pyrolysis. The catalyst exhibits excellent electrocatalytic performance towards the oxygen reduction reaction with a large limiting diffusion current density of 5.60 mA cm⁻² (10% higher than that of commercial Pt/C), and when acting as the air catalyst of Zn–air ...
DOI:
10.1039/c8cc08992b