A Two-Dimensional Borophene Supercapacitor DOI
Yaser Abdi, Ali Mazaheri, Soheil Hajibaba

et al.

ACS Materials Letters, Journal Year: 2022, Volume and Issue: 4(10), P. 1929 - 1936

Published: Sept. 6, 2022

This work introduces a new two-dimensional (2D) borophene-based (BB) supercapacitor produced by chemical vapor deposition method and used in the facile fabrication of nanosupercapacitors (spin-coating on graphite substrates). Structural properties as-prepared borophene sheets are fully characterized via AFM, HRTEM, FESEM, Raman spectrum 2D is scrutinized discussed, as well electrochemical response fabricated nanosupercapacitors. A high specific capacity (sCap) 350 F g–1 attributed to device according tests, that almost three times higher than previous boron-based supercapacitors surpasses best reported materials including graphene. Based surface charge-storage mechanism, it posited electrical conductivity area electrode highly affect performance supercapacitor. Simulation studies also conducted using joint density-functional theory (JDFT), results which agreement with outcomes experiments. Application newly synthesized BB current study expected be promising energy storage field, inventive class sensing devices, novel sensitive biosensors.

Language: Английский

Nanocellulose and its derived composite electrodes toward supercapacitors: Fabrication, properties, and challenges DOI Creative Commons

Junlei Xiao,

Huiling Li, Hua Zhang

et al.

Journal of Bioresources and Bioproducts, Journal Year: 2022, Volume and Issue: 7(4), P. 245 - 269

Published: May 20, 2022

With the increasing demand for sustainable energy storage systems, development of various advanced materials from a renewable source is imminent. Owing to advantages high specific surface area, unique nanostructure, modifiability, and excellent mechanical strength, nanocellulose integrated with other conductive materials, such as nanocarbons, conducting polymers, metal oxides, has been emerged promising candidate green devices. Besides, nanocellulose-derived carbon good electrical conductivity tunable microstructures can be fabricated via simple carbonization, which widely used supercapacitor electrode materials. Herein, we present comprehensive review that focuses on storage, particularly supercapacitors. The fabrication strategies hybrid are first presented summarized, followed by highlighting use natural constructing composite including two-dimension film electrodes, three-dimension aerogel electrodes In addition, possible limitations potentials in supercapacitors outlooked.

Language: Английский

Citations

177
Recent advances in rational design for high-performance potassium-ion batteries DOI
Yifan Xu, Yichen Du,

Han Chen

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(13), P. 7202 - 7298

Published: Jan. 1, 2024

The growing global energy demand necessitates the development of renewable solutions to mitigate greenhouse gas emissions and air pollution. To efficiently utilize yet intermittent sources such as solar wind power, there is a critical need for large-scale storage systems (EES) with high electrochemical performance. While lithium-ion batteries (LIBs) have been successfully used EES, surging price, coupled limited supply crucial metals like lithium cobalt, raised concerns about future sustainability. In this context, potassium-ion (PIBs) emerged promising alternatives commercial LIBs. Leveraging low cost potassium resources, abundant natural reserves, similar chemical properties potassium, PIBs exhibit excellent ion transport kinetics in electrolytes. This review starts from fundamental principles structural regulation PIBs, offering comprehensive overview their current research status. It covers cathode materials, anode electrolytes, binders, separators, combining insights full battery performance, degradation mechanisms,

Language: Английский

Citations

140
Self-supported metal–organic framework-based nanostructures as binder-free electrodes for supercapacitors DOI Open Access
Xueyan Zhao, Kai Tao, Lei Han

et al.

Nanoscale, Journal Year: 2022, Volume and Issue: 14(6), P. 2155 - 2166

Published: Jan. 1, 2022

Metal-organic frameworks (MOFs), an interesting class of functional inorganic materials, have recently emerged as suitable electrode materials or templates/precursors for supercapacitors (SCs). The key in utilizing MOF-based is to address the low electronic conductivity and poor stability issues. Therefore, rational design fabrication self-supported binder-free electrodes considered most promising strategy these challenges. In this review, we summarize recent advances manufacture nanostructures their use binderless SCs, especially over last five years. synthesis strategies constructing pristine MOFs, MOF composites derivative arrays are overviewed. By highlighting advantages challenges each hope that review will provide some insights into promote future development highly exciting field.

Language: Английский

Citations

98
Carbon cloth supported flower-like porous nickel-based electrodes boosting ion/charge transfer characteristics of flexible supercapacitors DOI
Min Fu,

Zitong Zhu,

Wei Chen

et al.

Carbon, Journal Year: 2022, Volume and Issue: 199, P. 520 - 528

Published: July 16, 2022

Language: Английский

Citations

86
Architectural van der Waals Bi2S3/Bi2Se3 topological heterostructure as a superior potassium-ion storage material DOI

Yi‐Yen Hsieh,

Hsing‐Yu Tuan

Energy storage materials, Journal Year: 2022, Volume and Issue: 51, P. 789 - 805

Published: July 16, 2022

Language: Английский

Citations

78
Preferential Pyrolysis Construction of Carbon Anodes with 8400 h Lifespan for High‐Energy‐Density K‐ion Batteries DOI
Jian Yin, Junjie Jin, Cailing Chen

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(17)

Published: March 1, 2023

Carbonaceous materials are promising anodes for practical potassium-ion batteries, but fail to meet the requirements durability and high capacities at low potentials. Herein, we constructed a durable carbon anode high-energy-density K-ion full cells by preferential pyrolysis strategy. Utilizing S N volatilization from π-π stacked supermolecule, process introduces low-potential active sites of sp2 hybridized vacancies, endowing "vacancy-adsorption/intercalation" mechanism. The as-prepared exhibits capacity 384.2 mAh g-1 (90 % locates below 1 V vs. K/K+ ), which contributes energy density 163 Wh kg-1 battery. Moreover, abundant vacancies alleviate volume variation, boosting cycling stability over 14 000 cycles (8400 h). Our work provides new synthesis approach with densities.

Language: Английский

Citations

72
Surface-dominated potassium storage enabled by single-atomic sulfur for high-performance K-ion battery anodes DOI

Guo‐Zhan Yang,

Yanfei Chen,

Bao‐Qi Feng

et al.

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(4), P. 1540 - 1547

Published: Jan. 1, 2023

A single-atomic sulfur anode, constructed by ∼32 wt% uniformly incorporated into the carbon lattice of hollow nanospheres, demonstrates an outstanding combination capacity, cyclability, and rate for potassium storage.

Language: Английский

Citations

56
Ultrastable two-dimensional fluorescent conjugated microporous polymers containing pyrene and fluorene units for metal ion sensing and energy storage DOI

Mohamed Gamal Mohamed,

Huan-Yu Hu,

Manivannan Madhu

et al.

European Polymer Journal, Journal Year: 2023, Volume and Issue: 189, P. 111980 - 111980

Published: March 9, 2023

Language: Английский

Citations

53
Low‐Temperature Carbonized N/O/S‐Tri‐Doped Hard Carbon for Fast and Stable K‐Ions Storage DOI
Xiaoyi Lu,

Junjie Zhou,

Le Huang

et al.

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 14(4)

Published: Dec. 2, 2023

Abstract Hard carbon stands out as one of the premier anodes for potassium‐ion batteries (PIBs), celebrated its cost‐effectiveness, natural abundance, and high yield. Yet, performance in PIBs remains subpar due to slow kinetics, a result large ionic radius K‐ions. Herein, unique lamellar N/O/S‐tri‐doped hard (NOSHC) has been developed at an impressively low pyrolysis temperature 500°C, showcasing distinct “slope‐dominated” characteristic. NOSHC delivers superior rate with dominant surface‐driven capacitive contribution (71.6% scan 0.5 mV s −1 ), maintaining robust reversible specific capacity 125 mAh g (half peak) even 5 A . Its stability is equally commendable, it sustains substantial 265 after 100 cycles 0.1 retains 210 post‐1000 1 Moreover, undergoes continuous activation via potassiation/depotassiation during cycling. Rich heteroatom doping introduces plethora defects vacancies, creating abundant active sites. The structure, featuring minimal pores, optimizes K‐ions transport by shortening diffusion length. This study unveils potential enhancing harnessing carbonization approach.

Language: Английский

Citations

51
Defect engineering in carbon materials for electrochemical energy storage and catalytic conversion DOI Creative Commons
Zhiqiang Zhao, Huan Chen, Wanyu Zhang

et al.

Materials Advances, Journal Year: 2023, Volume and Issue: 4(3), P. 835 - 867

Published: Jan. 1, 2023

This review covers recent advances in understanding, designing, and exploring the defect carbon toward energy-related applications, with aim of referencing guiding large-scale diverse applications defect-rich materials.

Language: Английский

Citations

46