Revealing High-Rate and High Volumetric Pseudo-Intercalation Charge Storage from Boron-Vacancy Doped MXenes

Article Chemistry, Physical

Unconventional s-p-d hybridization in modulating frontier orbitals of carbonaceous radicals on PdBi nanosheets for efficient ethanol electrooxidation

Liang Ji et al.

Summary: Rational design of highly efficient ethanol electrooxidation catalysts involves modulation of their band structure, adsorption and energy transfer for enhanced activity and selectivity.

APPLIED CATALYSIS B-ENVIRONMENTAL (2023)

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Article Chemistry, Multidisciplinary

Simplified Synthesis of Fluoride-Free Ti3C2Tx via Electrochemical Etching toward High- Performance Electrochemical Capacitors

Jizhang Chen et al.

Summary: A facile and time-saving electrochemical etching method is developed to synthesize F-free and Cl-containing Ti3C2Tx. Sonification alone is able to delaminate Ti3C2Tx without using any hazardous organic intercalant. The obtained Ti3C2Tx flakes exhibit suitable size and stability, and show excellent performance in supercapacitors and hybrid capacitors.

ACS NANO (2022)

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Article Chemistry, Multidisciplinary

Manipulating the Interlayer Spacing of 3D MXenes with Improved Stability and Zinc-Ion Storage Capability

Mengke Peng et al.

Summary: 2D transition metal carbides/nitrides (MXenes) show great potential for electrochemical energy storage devices, but their self-stacking and narrow interlayer spacing limit their application in multivalent ion energy storage systems. This study successfully inserted fatty diamines and aromatic diamines between MXene interlayers to inhibit self-stacking and achieve expanded interlayer spacings, leading to improved antioxidant stability. The intercalation of small organic molecules provides a route for precise control of MXene interlayer spacing, enabling efficient charge storage in MXene-based electrochemical energy storage devices.

ADVANCED FUNCTIONAL MATERIALS (2022)

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Article Chemistry, Physical

Relationship between Electric Double-Layer Structure of MXene Electrode and Its Surface Functional Groups

Tatau Shimada et al.

Summary: In this study, the atomic-scale double-layer structure of MXene electrodes with different terminated halogen elements was systematically investigated using density functional theory calculations. The results showed a clear relationship between the atomic number of the terminated halogen atoms and the capacitance.

CHEMISTRY OF MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Compacting Electric Double Layer Enables Carbon Electrode with Ultrahigh Zn Ion Storage Capability

Xin Shi et al.

Summary: This study proposes a universal surface charge modulation strategy to enhance the capacitance of carbon materials by reducing the thickness of the electric double layer (EDL). Amino groups are used to increase the surface charge density and enhance the interaction between carbon electrodes and zinc ions, leading to a compacted EDL. The amino-functionalized porous carbon-based ZHSCs demonstrate a high capacity and excellent cycling stability in 1 M ZnCl2 electrolyte.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

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Article Chemistry, Physical

Remove the -F Terminal Groups on Ti3C2Tx by Reaction with Sodium Metal to Enhance Pseudocapacitance

Xuewen Hu et al.

Summary: MXenes, a new family of two-dimensional materials, have unique chemical and physical properties that make them promising candidates for supercapacitors. This study demonstrates an efficient strategy to remove the -F terminal groups of Ti3C2Tx and introduce -O terminal groups, resulting in enhanced specific capacitance.

ENERGY STORAGE MATERIALS (2022)

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Article Chemistry, Physical

Optimizing Ion Pathway in Titanium Carbide MXene for Practical High-Rate Supercapacitor

Jun Tang et al.

Summary: A novel oxidation method was developed to reduce restacking issue of Ti3C2Tx film, resulting in a hierarchical ion path structure with excellent electrochemical performance, high rate capability, and high volumetric capacitance.

ADVANCED ENERGY MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Flexible Free-Standing MoO3/Ti3C2Tz MXene Composite Films with High Gravimetric and Volumetric Capacities

Wei Zheng et al.

Summary: The study on MoO3/Ti3C2Tz films demonstrates superior energy storage and power capabilities, laying the foundation for practical applications.

ADVANCED SCIENCE (2021)

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Article Chemistry, Physical

2D titanium and vanadium carbide MXene heterostructures for electrochemical energy storage

Armin VahidMohammadi et al.

Summary: Two-dimensional heterostructured electrodes, constructed from stacking different 2D materials vertically, show high volumetric capacitance and stable electrochemical performance. The assembly of Ti3C2Tx and V2CTx in liquid phase without binders allows for consistent current throughout the potential window due to the coupling of redox reactions between the two materials.

ENERGY STORAGE MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Engineering the Interlayer Spacing by Pre-Intercalation for High Performance Supercapacitor MXene Electrodes in Room Temperature Ionic Liquid

Kun Liang et al.

Summary: MXenes show excellent capacitance in sulfuric acid aqueous electrolytes at high scan rates, but are limited by the narrow potential window. Organic electrolytes and room-temperature ionic liquids offer higher potential windows for increased energy density. Intercalation of alkylammonium cations into Ti3C2Tx can enhance specific capacitances and cycling stabilities, leading to high energy density in neat EMIMTFSI RTIL electrolytes.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Chemistry, Physical

2D amorphous-MoO3_ x@Ti3C2-MXene non-van der Waals heterostructures as anode materials for lithium-ion batteries

Pengfei Yan et al.

Summary: The study found that a non-vdW heterostructure can strongly stabilize aMoO3_x while maintaining high electrical conductivity, optimizing lithium-ion storage kinetics and achieving high-performance energy storage materials. This work opens up a promising platform for boosting and understanding lithium-ion storage performance.

NANO ENERGY (2021)

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Article Chemistry, Physical

Vacuum-filtration assisted layer-by-layer strategy to design MXene/carbon nanotube@MnO2 all-in-one supercapacitors

Ya-Li Huang et al.

Summary: A novel approach to prepare flexible supercapacitors using MXene materials has been developed, which demonstrates high specific capacity, good cycling stability, flexibility, and high energy density and power density due to the specific electrode structure design.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Review Nanoscience & Nanotechnology

Achieving high energy density and high power density with pseudocapacitive materials

Christopher Choi et al.

NATURE REVIEWS MATERIALS (2020)

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Article Energy & Fuels

Tuning the interlayer spacing of graphene laminate films for efficient pore utilization towards compact capacitive energy storage

Zhuangnan Li et al.

NATURE ENERGY (2020)

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Article Chemistry, Multidisciplinary

Recent Advances and Promise of MXene-Based Nanostructures for High-Performance Metal Ion Batteries

Yanfeng Dong et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Nitrogen-Doped Ti3C2 MXene: Mechanism Investigation and Electrochemical Analysis

Chengjie Lu et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

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Article Chemistry, Physical

A supercapacitor with ultrahigh volumetric capacitance produced by self-assembly of reduced graphene oxide through phosphoric acid treatment

Zhaoyuan Liu et al.

JOURNAL OF MATERIALS CHEMISTRY A (2020)

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Article Chemistry, Physical

Hydrous RuO2-Decorated MXene Coordinating with Silver Nanowire Inks Enabling Fully Printed Micro-Supercapacitors with Extraordinary Volumetric Performance

Hongpeng Li et al.

ADVANCED ENERGY MATERIALS (2019)

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Article Energy & Fuels

Influences from solvents on charge storage in titanium carbide MXenes

Xuehang Wang et al.

NATURE ENERGY (2019)

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Article Chemistry, Physical

A novel metal-organic layered material with superior supercapacitive performance through ultrafast and reversible tetraethylammonium intercalation

Xinwei Cui et al.

NANO ENERGY (2019)

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Article Chemistry, Multidisciplinary

Tuning the Electrochemical Performance of Titanium Carbide MXene by Controllable In Situ Anodic Oxidation

Jun Tang et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

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Article Chemistry, Physical

Organic-inorganic all-pseudocapacitive asymmetric energy storage devices

Muhammad Boota et al.

NANO ENERGY (2019)

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Article Chemistry, Multidisciplinary

Highly Conductive Ti3C2Tx MXene Hybrid Fibers for Flexible and Elastic Fiber-Shaped Supercapacitors

Jizhen Zhang et al.

SMALL (2019)

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Article Chemistry, Physical

Pristine or Highly Defective? Understanding the Role of Graphene Structure for Stable Lithium Metal Plating

Wei Liu et al.

ADVANCED ENERGY MATERIALS (2019)

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Article Chemistry, Multidisciplinary

Achieving of Flexible, Free-Standing, Ultracompact Delaminated Titanium Carbide Films for High Volumetric Performance and Heat-Resistant Symmetric Supercapacitors

Chenhui Yang et al.

ADVANCED FUNCTIONAL MATERIALS (2018)

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Article Chemistry, Multidisciplinary

Self-Assembly of Transition Metal Oxide Nanostructures on MXene Nanosheets for Fast and Stable Lithium Storage

Yi-Tao Liu et al.

ADVANCED MATERIALS (2018)

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Article Chemistry, Physical

Oxygen vacancies enhance pseudocapacitive charge storage properties of MoO3-x

Hyung-Seok Kim et al.

NATURE MATERIALS (2017)

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Article Multidisciplinary Sciences

Two-dimensional Mo1.33C MXene with divacancy ordering prepared from parent 3D laminate with in-plane chemical ordering

Quanzheng Tao et al.

NATURE COMMUNICATIONS (2017)

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Article Chemistry, Physical

Nitrogen-doped Ti3C2Tx MXene electrodes for high-performance supercapacitors

Yangyang Wen et al.

NANO ENERGY (2017)

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Article Energy & Fuels

Ultra-high-rate pseudocapacitive energy storage in two-dimensional transition metal carbides

Maria R. Lukatskaya et al.

NATURE ENERGY (2017)

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Article Chemistry, Multidisciplinary

Flexible MXene/Graphene Films for Ultrafast Supercapacitors with Outstanding Volumetric Capacitance

Jun Yan et al.

ADVANCED FUNCTIONAL MATERIALS (2017)

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Article Chemistry, Multidisciplinary

Two-Dimensional MXene with Controlled Interlayer Spacing for Electrochemical Energy Storage

Patrice Simon

ACS NANO (2017)

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Article Chemistry, Multidisciplinary

Pillared Structure Design of MXene with Ultralarge Interlayer Spacing for High-Performance Lithium-Ion Capacitors

Jianmin Luo et al.

ACS NANO (2017)

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Article Chemistry, Multidisciplinary

Half-Cell and Full-Cell Applications of Highly Stable and Binder-Free Sodium Ion Batteries Based on Cu3P Nanowire Anodes

Mouping Fan et al.

ADVANCED FUNCTIONAL MATERIALS (2016)

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Article Chemistry, Physical

Highly Flexible, Freestanding Supercapacitor Electrode with Enhanced Performance Obtained by Hybridizing Polypyrrole Chains with MXene

Minshen Zhu et al.

ADVANCED ENERGY MATERIALS (2016)

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Article Multidisciplinary Sciences

Nitrogen-doped mesoporous carbon of extraordinary capacitance for electrochemical energy storage

Tianquan Lin et al.

SCIENCE (2015)

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Article Chemistry, Physical

Probing the Mechanism of High Capacitance in 2D Titanium Carbide Using In Situ X-Ray Absorption Spectroscopy

Maria R. Lukatskaya et al.

ADVANCED ENERGY MATERIALS (2015)

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Article Chemistry, Multidisciplinary

Flexible MXene/Carbon Nanotube Composite Paper with High Volumetric Capacitance

Meng-Qiang Zhao et al.

ADVANCED MATERIALS (2015)

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Article Chemistry, Physical

High-rate electrochemical energy storage through Li+ intercalation pseudocapacitance

Veronica Augustyn et al.

NATURE MATERIALS (2013)

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Article Multidisciplinary Sciences

Cation Intercalation and High Volumetric Capacitance of Two-Dimensional Titanium Carbide

Maria R. Lukatskaya et al.

SCIENCE (2013)

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Review Chemistry, Physical

Materials for electrochemical capacitors

Patrice Simon et al.

NATURE MATERIALS (2008)

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Revealing High-Rate and High Volumetric Pseudo-Intercalation Charge Storage from Boron-Vacancy Doped MXenes

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