Superior-Performance Aqueous Zinc Ion Battery Based on Structural Transformation of MnO2 by Rare Earth Doping

2019 ◽  
Vol 123 (37) ◽  
pp. 22735-22741 ◽  
Author(s):  
Jianwei Wang ◽  
Xiaolei Sun ◽  
Hongyang Zhao ◽  
Lingling Xu ◽  
Jiale Xia ◽  
...  
Keyword(s):  
Rare Earth ◽  
Structural Transformation ◽  
Zinc Ion ◽  
Superior Performance ◽  
Rare Earth Doping

scholarly journals Oxygen-Deficient β-MnO2@Graphene Oxide Cathode for High-Rate and Long-Life Aqueous Zinc Ion Batteries

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Shouxiang Ding ◽  
Mingzheng Zhang ◽  
Runzhi Qin ◽  
Jianjun Fang ◽  
Hengyu Ren ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Manganese Oxides ◽  
Rate Capability ◽  
High Energy ◽  
Zinc Ion ◽  
Cycling Stability ◽  
High Rate ◽  
High Energy Density ◽  
Superior Performance ◽  
Long Life

AbstractRecent years have witnessed a booming interest in grid-scale electrochemical energy storage, where much attention has been paid to the aqueous zinc ion batteries (AZIBs). Among various cathode materials for AZIBs, manganese oxides have risen to prominence due to their high energy density and low cost. However, sluggish reaction kinetics and poor cycling stability dictate against their practical application. Herein, we demonstrate the combined use of defect engineering and interfacial optimization that can simultaneously promote rate capability and cycling stability of MnO2 cathodes. β-MnO2 with abundant oxygen vacancies (VO) and graphene oxide (GO) wrapping is synthesized, in which VO in the bulk accelerate the charge/discharge kinetics while GO on the surfaces inhibits the Mn dissolution. This electrode shows a sustained reversible capacity of ~ 129.6 mAh g−1 even after 2000 cycles at a current rate of 4C, outperforming the state-of-the-art MnO2-based cathodes. The superior performance can be rationalized by the direct interaction between surface VO and the GO coating layer, as well as the regulation of structural evolution of β-MnO2 during cycling. The combinatorial design scheme in this work offers a practical pathway for obtaining high-rate and long-life cathodes for AZIBs.

Erbium Tris(Amide) Compounds as Source Molecules FOR Rare Earth Doping of Semiconducting Materials

1995 ◽  
Vol 415 ◽  
Author(s):  
Oliver Just ◽  
Anton C. Greenwald ◽  
William S. Rees
Keyword(s):  
Rare Earth ◽  
Solid State ◽  
Earth Element ◽  
Optoelectronic Devices ◽  
Analytical Techniques ◽  
Optically Active ◽  
Rare Earth Doping ◽  
Semiconducting Materials ◽  
Host Materials ◽  
Erbium Doped

ABSTRACTThe homoleptic compound erbium{tris[bis (trimethylsilyl)]amide} displays high doping ability for incorporation of the rare earth element into epitaxially grown semiconducting host materials for fabrication of temperature-independent, monochromatic solid state optoelectronic devices. Electronic characteristics derived from erbium doped semiconducting films have been obtained. Several more volatile and lower melting representatives of this class of compounds have been synthesized, characterized by various analytical techniques and examined for their suitability to incorporate optically-active erbium centers into a semiconducting environment.

Rare-earth doping engineering in nanostructured ZnO: a new type of eco-friendly photocatalyst with enhanced photocatalytic characteristics

2018 ◽  
Vol 124 (9) ◽  
Author(s):  
Yue Fang ◽  
Jihui Lang ◽  
Jiaying Wang ◽  
Qiang Han ◽  
Zhe Zhang ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Doping ◽  
New Type

On the influence of rare earth doping on microstructure and phase composition of sputtered, epitaxial Bi2Sr2(Cax−1REx)Cu2O8+δ films and multilayers

1998 ◽  
Vol 302 (2-3) ◽  
pp. 207-214 ◽  
Author(s):  
A.C. Meltzow ◽  
S. Altmeyer ◽  
H. Kurz ◽  
N.D. Zakharov ◽  
S. Senz ◽  
...  
Keyword(s):  
Rare Earth ◽  
Phase Composition ◽  
Rare Earth Doping

scholarly journals Rare earth doping graphitic carbon nitride endows distinctive multiple emissions with large Stocks shifts

CCS Chemistry ◽  
2021 ◽  
pp. 1-19
Author(s):  
Xun Liu ◽  
Shangqing Zhang ◽  
Jinhui Liu ◽  
Xing Wei ◽  
Ting Yang ◽  
...  
Keyword(s):  
Rare Earth ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Rare Earth Doping

Rare-earth doping, various post-growth heat treatments and aging effects on OH− absorption in LiNbO3 crystal

2012 ◽  
Vol 135 (2-3) ◽  
pp. 416-424 ◽  
Author(s):  
De-Long Zhang ◽  
Wen-Zhu Zhang ◽  
Jian Gao ◽  
Ping-Rang Hua ◽  
Bei Chen ◽  
...  
Keyword(s):  
Rare Earth ◽  
Heat Treatments ◽  
Rare Earth Doping ◽  
Aging Effects ◽  
Linbo3 Crystal

scholarly journals Influence of the La3+, Eu3+, and Er3+ Doping on Structural, Optical, and Electrical Properties of BiFeO3 Nanoparticles Synthesized by Microwave-Assisted Solution Combustion Method

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Angelika Wrzesinska ◽  
Alexander Khort ◽  
Izabela Bobowska ◽  
Adam Busiakiewicz ◽  
Aleksandra Wypych-Puszkarz
Keyword(s):  
Rare Earth ◽  
Electrical Properties ◽  
Bismuth Ferrite ◽  
Solution Combustion Synthesis ◽  
Combustion Method ◽  
Band Gap Energy ◽  
Rare Earth Doping ◽  
Optical And Electrical Properties ◽  
Solution Combustion ◽  
Microwave Assisted

In this study, nanocrystalline (18–28 nm) perovskite-like bismuth ferrite rare earth-doped powders (Bi0.9RE0.1FeO3, where RE = La (BLaFO), Eu (BEuFO), and Er (BErFO)) were obtained by microwave-assisted modification of solution combustion synthesis (SCS). The influence of high load La3+, Eu3+, and Er3+ doping on structural, optical, and electrical properties of BiFeO3 was investigated. It was found that rare earth doping along with fast phase formation and quenching significantly distorts the crystal cells of the obtained materials, which results in the formation of mixed rhombohedral- (R3c-) orthorhombic (Pbnm) crystal structures with decreased lengths of Bi-O and Fe-O bonds along with a decreasing radius size of doping ions. This promotes reduction of the optical band gap energy and suppression of ionic polarization at high frequencies and results in enhanced dielectric permittivity of the materials at 1 MHz.

Unveiling the mechanism of rare earth doping to optimize the optical performance of the CsPbBr3 perovskite

2020 ◽  
Vol 7 (23) ◽  
pp. 4669-4676
Author(s):  
Lingjun He ◽  
Junling Meng ◽  
Jing Feng ◽  
Xiaojuan Liu ◽  
Hongjie Zhang
Keyword(s):  
Rare Earth ◽  
Electronic Transitions ◽  
Rare Earth Doping ◽  
Optical Performance

The types of electronic transitions in the lanthanide-activated CsPbBr3:RE family.

Effects of rare earth doping on electrochemical properties of NdBaCo2O6- cathode materials

2020 ◽  
Vol 837 ◽  
pp. 155563
Author(s):  
Yu Anbo ◽  
Xia Tian ◽  
Sun Liping ◽  
Li Qiang ◽  
Huo Lihua ◽  
...  
Keyword(s):  
Rare Earth ◽  
Electrochemical Properties ◽  
Cathode Materials ◽  
Rare Earth Doping

Influence of rare-earth doping on the structural and dielectric properties of orthoferrite La0.50R0.50FeO3 ceramics synthesized under high pressure

2020 ◽  
Vol 842 ◽  
pp. 155859 ◽  
Author(s):  
I.I. Makoed ◽  
N.A. Liedienov ◽  
A.V. Pashchenko ◽  
G.G. Levchenko ◽  
D.D. Tatarchuk ◽  
...  
Keyword(s):  
High Pressure ◽  
Rare Earth ◽  
Dielectric Properties ◽  
Rare Earth Doping
Sign in / Sign up

Export Citation Format

Share Document