Operando Leaching of Pre-Incorporated Al and Mechanism in Transition Metal Hybrids for Elaborately Enhanced Charge Storage

2021 ◽  
Author(s):  
Wei Guo ◽  
Feipeng Yang ◽  
Jiuke Chen ◽  
Chang Yu ◽  
Yisheng Liu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Charge Storage ◽  
Metal Hybrids

A Universal Converse Voltage Process for Triggering Transition Metal Hybrids In Situ Phase Restruction toward Ultrahigh‐Rate Supercapacitors

2019 ◽  
Vol 31 (28) ◽  
pp. 1901241 ◽  
Author(s):  
Wei Guo ◽  
Chang Yu ◽  
Shaofeng Li ◽  
Xuedan Song ◽  
Huawei Huang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Hybrids

scholarly journals Toward heterostructured transition metal hybrids with highly promoted electrochemical hydrogen evolution

RSC Advances ◽  
2019 ◽  
Vol 9 (35) ◽  
pp. 19924-19929 ◽  
Author(s):  
Guanhui Gao ◽  
Xiaobin Xie ◽  
Shendong Kang ◽  
Yanhua Lei ◽  
Achim Trampert ◽  
...  
Keyword(s):  
Transition Metal ◽  
Electrochemical Properties ◽  
Hydrogen Evolution ◽  
Low Cost ◽  
Transition Metal Dichalcogenide ◽  
Hydrothermal Approach ◽  
Metal Hybrids ◽  
Sustainable Transition

Low-cost and sustainable transition metal dichalcogenide heterostructures are developed via a hydrothermal approach, which could greatly promote their electrochemical properties for HER performance as electrocatalysts.

Pseudocapacitive Contributions to Charge Storage in Highly Ordered Mesoporous Group V Transition Metal Oxides with Iso-Oriented Layered Nanocrystalline Domains

2010 ◽  
Vol 132 (20) ◽  
pp. 6982-6990 ◽  
Author(s):  
Kirstin Brezesinski ◽  
John Wang ◽  
Jan Haetge ◽  
Christian Reitz ◽  
Sven O. Steinmueller ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Charge Storage ◽  
Group V ◽  
Ordered Mesoporous

scholarly journals Mesoporous MoS2 as a Transition Metal Dichalcogenide Exhibiting Pseudocapacitive Li and Na-Ion Charge Storage

2016 ◽  
Vol 6 (9) ◽  
pp. 1501937 ◽  
Author(s):  
John B. Cook ◽  
Hyung-Seok Kim ◽  
Yan Yan ◽  
Jesse S. Ko ◽  
Shauna Robbennolt ◽  
...  
Keyword(s):  
Transition Metal ◽  
Charge Storage ◽  
Transition Metal Dichalcogenide

MXene Electrode Materials for Electrochemical Energy Storage: First-Principles and Grand Canonical Monte Carlo Simulations

MRS Advances ◽  
2019 ◽  
Vol 4 (33-34) ◽  
pp. 1833-1841
Author(s):  
Yasuaki Okada ◽  
Nathan Keilbart ◽  
James M. Goff ◽  
Shin’ichi Higai ◽  
Kosuke Shiratsuyu ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Energy Storage ◽  
Transition Metal ◽  
First Principles ◽  
Electrode Materials ◽  
Critical Role ◽  
Atomic Charge ◽  
Charge Storage ◽  
Grand Canonical Monte Carlo ◽  
Grand Canonical

MXenes are a novel class of two dimensional materials, discovered by Barsoum and Gogotsi [M. Naguib, J. Come, B. Dyatkin, V. Presser, P. Taberna, P. Simon, M. W. Barsoum, and Y. Gogotsi, Electrochemistry Communications 16, 61-64 (2012); B. Anasori, M. R. Lukatskaya, and Y. Gogotsi, Nature Reviews Materials vol. 2, 16098 (2017)]. Their large specific surface area and the tunability of their physicochemical properties as a function of the transition metal and surface terminal group make them a unique design platform for various applications, a primary example of which is pseudocapacitive energy storage. However, there is still incomplete understanding of how the transition metal chemistry and stoichiometry, and the surface termination affect charge storage mechanisms in MXene. In this study, we have performed systematic first-principles calculations for bulk MXene and found that the atomic charge of the metal cations, which is related to their valence, decreases across the d-electron metal series. Electronic-structure indicators of performance are examined to understand the energy storage behavior, whereby charges are stored between the terminal groups and adsorbing cations. Importantly, we found that the differential Bader charges show good agreement with theoretical capacitances and are useful in predicting charge storage trends in MXene-based pseudocapacitors. Furthermore, we have performed first-principles and grand canonical Monte Carlo calculations for the slab systems, finding that the solvent plays a critical role in enhancing the pseudocapacitive response.

Transition metal dichalcogenides for alkali metal ion batteries: engineering strategies at the atomic level

2020 ◽  
Vol 13 (4) ◽  
pp. 1096-1131 ◽  
Author(s):  
Biao Chen ◽  
Dongliang Chao ◽  
Enzuo Liu ◽  
Mietek Jaroniec ◽  
Naiqin Zhao ◽  
...  
Keyword(s):  
Energy Storage ◽  
Transition Metal ◽  
Alkali Metal ◽  
Metal Ion ◽  
Transition Metal Dichalcogenides ◽  
Atomic Level ◽  
Charge Storage ◽  
Intrinsic Structure ◽  
Metal Dichalcogenides ◽  
Structure Engineering

This review provides enriched information for understanding the charge storage mechanisms of transition metal dichalcogenides (TMDs), as well as the importance of intrinsic structure engineering for enhancing the performance of TMDs in energy storage.

Charge storage mechanism and degradation of P2-type sodium transition metal oxides in aqueous electrolytes

2018 ◽  
Vol 6 (44) ◽  
pp. 22266-22276 ◽  
Author(s):  
Shelby Boyd ◽  
Rohan Dhall ◽  
James M. LeBeau ◽  
Veronica Augustyn
Keyword(s):  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Structural Changes ◽  
Charge Storage ◽  
Aqueous Electrolytes ◽  
Storage Mechanism ◽  
Charge Storage Mechanism

P2-type sodium transition metal oxides undergo water-driven structural changes that strongly affect electrochemical charge storage in aqueous electrolytes.

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