Results 101 to 110 of about 5,095 (238)

Controllable Carbon Shell Encapsulation via Rapid Joule Heating Calcination for High‐Performance Asymmetric Supercapacitor With Suppressed Self‐Discharge and Robust Cycling Stability

Advanced Science, Volume 13, Issue 51, 14 September 2026.
The H‐Fe3O4@C negative electrode and H‐NiCo2S4@C positive electrode are designed through a controllable carbon shell encapsulation strategy. The as‐constructed asymmetric supercapacitor presents robust cycling stability with 93.7% capacity retention after 25 000 cycles.
Qiang Zhou, Zheng Yang, Zhen Cao, Xulan Zheng, Xiao Yan, Yunsong Li, Xinsheng Zhao, Yuxiao Lin, Xiaoxiao Li   +8 more
wiley   +1 more source

Ilmenite FeTiO 3 Nanoflowers and Their Pseudocapacitance

, 2011
Pronounced and stable pseudocapacitance has been found in flowerlike FeTiO3 nanostructures that were synthesized from ball-milled ilmenite (natural mineral) under mild hydrothermal conditions.
Dai, Xiujuan J., Glushenkov, Alexey M, Chen, Ying, Tao, Tao, Hua Chen, Liu, Hong-Wei, Alexey M. Glushenkov, Hongwei Liu, Simon P. Ringer, Zongwen Liu, Xiujuan J. Dai, Tao Tao, Liu, Zongwen, Chen, Hua, Ying Chen, Ringer, Simon Peter   +15 more
core   +1 more source

A Roadmap for Achieving Sustainable Energy Conversion and Storage: Graphene-Based Composites Used Both as an Electrocatalyst for Oxygen Reduction Reactions and an Electrode Material for a Supercapacitor

Energies, 2018
Based on its unique features including 2D planar geometry, high specific surface area and electron conductivity, graphene has been intensively studied as oxygen reduction reaction (ORR) electrocatalyst and supercapacitor material.
Peipei Huo, Peng Zhao, Yin Wang, Bo Liu, Guangchao Yin, Mingdong Dong   +5 more
doaj   +1 more source

From Sourcing to End‐of‐Life: Sustainability Challenges and Opportunities in Organic Bioelectronics

Advanced Science, Volume 13, Issue 51, 14 September 2026.
Organic bioelectronics bridges biology and electronics using organic mixed ionic/electronic conductors. This Perspective addresses sustainability across the full lifecycle of organic bioelectronic materials and devices, offering a framework to guide material sourcing, synthesis, fabrication, application, and end‐of‐life strategies toward bioelectronic ...
Gwennaël Dufil, Marine Batista, Andrea Bionda, Erica Zeglio   +3 more
wiley   +1 more source

Enhanced pseudocapacitance in multicomponent transition-metal oxides by local distortion of oxygen octahedra

, 2016
Anomalously high pseudocapacitance of a metal oxide was observed when Ni, Co, and Mn were mixed in a solid solution. Analysis by X-ray absorption near-edge spectroscopy (XANES) identified a wider redox swing of Ni as the origin of the enlarged ...
Jang Wook Choi, Chung, Sung-Yoon, Hyeon Jeong Lee, Choi, Jang Wook, Sung‐Yoon Chung, Ji Hoon Lee, Lee, Ji Hoon, Lee, Hyeon Jeong   +7 more
core   +1 more source

Microstructure‐Tailored Avocado Pit‐Derived Carbon via Hydrothermal Pre‐Carbonization for Enhanced Potassium Storage Performance

cMat, Volume 3, Issue 3, September 2026.
ABSTRACT Potassium‐ion batteries (PIBs) are regarded as a highly promising energy storage technology owing to abundant resources and low redox potential. Nevertheless, potassium's large ionic radius leads to sluggish diffusion kinetics and severe volume expansion during insertion and extraction. Therefore, exploring advanced anode materials with robust
Xue‐Song Li, Jiaxing Hao, Feng Liu, Pengfei Wang, Yan Ran, Chaodong Liu, Laishi Li, Yusheng Wu, Chenglin Zhang, Yuhan Wu   +9 more
wiley   +1 more source

Synergistic Fe/Cr Co‐Doping and Graphene Compositing Boost Ni4OHF7‐Based Supercapacitor Electrodes

Carbon Neutralization, Volume 5, Issue 5, September 2026.
We achieve dual optimization through elemental doping and support interaction, doping with Fe and Cr to enhance rate capability, and compositing with reduced graphene oxide (rGO) to improve cycling stability. This work provides a reliable strategy for the development of hydroxyfluoride‐based electrode materials and is expected to better meet future ...
Zeyu Hao, Huanlu Tu, Ziyu Wang, Ziyang Yu, Zhiyi Chen, Shansheng Yu, Xiaoying Hu, Chengyin Wang, Wei Kong Pang, Baohua Jia, Tianyi Ma, Hongwei Tian, Dawei Su   +12 more
wiley   +1 more source

Facile Synthesis of N,S-Codoped Hierarchically Porous Carbon with High Volumetric Pseudocapacitance

, 2019
For the purpose of obtaining high-volumetric-pseudocapacitance carbon materials for supercapacitors, the nitrogen, sulfur-codoped carbon (NSC) with a unique hierarchically porous structure is synthesized by directly carbonizing the unpurified polyaniline/
Wei Zhang (405), Huabo Huang (1846324), Yulan Liu (336513), Liang Li (46069), Juan Huang (41654), Qingyin Yang (7381814)   +5 more
core   +1 more source

Spatially Configuring RGO Interlayers With PANI/Lignin Nanoparticles Toward High‐Performance Asymmetric Supercapacitors

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 5, September 2026.
A novel PLNPs@RGO electrode, self‐assembled from polyaniline/lignin conjugated mesoporous nanoparticles (PLNPs) and reduced graphene oxide, exhibits excellent capacitance and high energy density in supercapacitors. The high‐performance flexible solid‐state asymmetric supercapacitor (FSAC) plays a critical role in advancing the innovation of next ...
Mengya Sun, Weisheng Yang, Yifei Qu, Shengbo Ge, Huiyang Bian, Mashallah Rezakazemi, Hongqi Dai   +6 more
wiley   +1 more source

Boosting Zinc‐Ion Hybrid Capacitors with Mesoporous Carbon Derived from Highly Graphitized Carbon Quantum Dots

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 5, September 2026.
The work presents an innovative method for the preparation of mesoporous carbon materials (MCs) from highly graphitized carbon quantum dots. The zinc‐ion hybrid capacitors assembled with MCs deliver high rate performance and stability, providing promising advancements for future energy storage solutions.
Guoli Zhang, Huihui Li, Kaiyue Wang, Gang Li, Kaixi Li, Taotao Guan, Kaiying Wang   +6 more
wiley   +1 more source