Article
Materials Science, Multidisciplinary
Yu Chen, Lingxiao Fang, Yang Hu, Yao Lu, Jiacheng He, Shiwei Wang, Quanling Yang, Zhuqun Shi, Chuanxi Xiong
Summary: This study utilized carbonized cellulose nanofibrils and urea to fabricate manganese oxide/nitrogen-doped carbon aerogels. The composite material exhibited high specific capacitance and good cyclic performance, indicating its potential as a supercapacitor electrode material.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Xiuya Wang, Ke Wan, Pengbo Xie, Yuanyuan Miao, Zhenbo Liu
Summary: The study prepared graphene-cellulose hydrogels by a one-step hydrothermal method, followed by the preparation of porous, ultra-light, and mechanically strong graphene-cellulose aerogels through freeze-drying. These composite aerogels exhibit excellent mechanical strength and high specific capacitance, capable of bearing about 1095 times the pressure of their own weight.
Article
Materials Science, Multidisciplinary
Chonghao Zhang, Haochen Wang, Yanfeng Gao, Caichao Wan
Summary: This review provides a detailed overview of cellulose-derived carbon aerogels (CDCAs) and their precursors in the field of high-performance green supercapacitor electrodes. The preparation strategies of CDCAs and their precursors are presented, and two crucial approaches for improving energy storage ability, hetero-atom doping and integration with pseudocapacitive materials, are summarized. The role of CDCAs in energy storage ability is analyzed from the perspective of structure-response relationship.
MATERIALS & DESIGN
(2022)
Article
Chemistry, Multidisciplinary
Min Fu, Ruitao Lv, Yu Lei, Mauricio Terrones
Summary: The study focuses on the fabrication of lightweight and flexible NiFe2O4/N-CMT composite sponges as electrodes for supercapacitors, demonstrating good cycling performance and high specific capacitance. Flexible supercapacitors with high areal specific capacitance are also fabricated, showing outstanding performance under bending conditions.
Article
Chemistry, Physical
Yu Ma, Qiao Liu, Weijun Li, Yapeng Zheng, Qing Shi, Zeyan Zhou, Gang Shao, Weiyou Yang, Ding Chen, Xiaosheng Fang
Summary: This study explored a carbon nanofiber aerogel with a spider-web-like 3D network structure based on the welding effect, achieving ultralow density, high flexibility, and robust repetitive compressive duration. The as-prepared carbon aerogel showed a specific capacitance among the best values for self-supporting carbon materials, and solid-state supercapacitors constructed from it exhibited excellent rate performance and cycling stability, with potential application as flexible energy storage devices.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Yue Sun, Shan Xue, Jinhua Sun, Xingxing Li, Yuchen Ou, Baohuan Zhu, Muslum Demir
Summary: Supercapacitors are attracting attention in energy storage fields due to their safety, cost-effectiveness, and environmental friendliness. Pore carbon materials derived from renewable biomass materials are important and cost-effective electrode materials for supercapacitors. However, the low ionic conductivity of biomass materials limits their electrochemical performance. This study introduces an immiscible liquid-mediated method to improve the ionic conductivity of silk-derived nitrogen-doped porous carbon electrodes. The addition of organic liquid promotes ion transport in the electrode pores, resulting in a specific capacitance of 565.3 F g-1 at a current density.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Yaqi Chen, Lifen Tong, Guo Lin, Xiaobo Liu
Summary: In this study, SWCNTs/phthalocyanine polymer composite derived self-nitrogen-doped graphene-like porous carbon (SPCM) was synthesized through a simple solution blending and mechanical stirring method. The SPCM showed high specific capacitance and excellent stability as an electrode material for supercapacitors.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Physical
M. S. P. Sudhakaran, Ranjithkumar Raju, Ji Ho Youk
Summary: Polypyrrole-derived nitrogen-doped carbon nanotubes (NCNTs) decorated with CoNi alloy NPs (CoNi@NCNT) were used as high-performance electrode materials. The CoNi@NCNT-20 composite exhibited a specific capacitance of 316 F g-1, two times higher than the pristine NCNT electrode. The synergistic effects of NCNT and CoNi alloy NPs enabled fast ion transport and excellent cycling stability.
APPLIED SURFACE SCIENCE
(2023)
Article
Energy & Fuels
Prashant Dubey, Vishal Shrivastav, Ashwinder Kaur, Priyanka H. Maheshwari, Shashank Sundriyal
Summary: The study focuses on using human hair-derived heteroatom-doped porous activated carbon for supercapacitor applications, demonstrating superior performance in an acidic electrolyte. The activated carbon sample shows excellent diffusion charge contribution in the acidic electrolyte and achieves the highest specific capacitance. The fabricated all-solid-state symmetric supercapacitor device exhibits remarkable energy density and a long cycle life.
Article
Chemistry, Physical
Wenfeng Zheng, Yuan Yang, Lingling Fan, Dezhan Ye, Weilin Xu, Jie Xu
Summary: Directional freezing is an efficient method to design anisotropic materials with surface voids and aligned channels for charge transmission and ion diffusion. In this study, poly(vinyl alcohol) (PVA)/bacterial cellulose (BC)/MXene (PBM) composite aerogels were prepared via directional freezing. The resulting PPy@PVA/BC/MXene (PPy@PBM) aerogel-based supercapacitors exhibited high capacitance, desirable energy density, and excellent cycling stability. Additionally, the PPy@PBM aerogels demonstrated high sensitivity, ultralow detection limit, and fast response as pressure sensors. This study proposes an efficient approach for preparing porous composite aerogels for supercapacitor electrodes and pressure sensors.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Feng Zhang, Huachen Liu, Zhaofeng Wu, Junhao Zhang, Entian Cui, Lu Yue, Guihua Hou
Summary: A nitrogen-doped carbon foam with hierarchically porous structure and high specific surface area was successfully prepared in this study, showing outstanding capacitance performance and cycle stability, which enriches the tool box for the preparation of porous carbons.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Ting Zeng, Hongyan Miao, Likui Wang, Yun Liu, Gang Shi, Bolong Yao
Summary: Nitrogen/phosphorus co-doped porous carbon materials were prepared by carbonizing cyclomatrix polyphosphazene, which showed hierarchical porous structure and increasing specific surface area and graphitization with higher carbonization temperatures. The sample prepared at 900 degrees C exhibited the highest capacitance of 323 F g(-1), excellent rate performance, and cycle stability.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Applied
Kai Chen, Sen Weng, Jing Lu, Jianfeng Gu, Guoqi Chen, Oudong Hu, Xiancai Jiang, Linxi Hou
Summary: This study reported a facile approach to prepare nitrogen-doped carbon material with tunable pore structure, showing excellent electrochemical performance. By adjusting the calcination temperature and active agents, the morphology and pore structure of the material can be effectively controlled. The final product exhibited outstanding performance in terms of specific capacitance and cycle stability.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Electrochemistry
Yunjie Ping, Shiju Yang, Jinzhao Han, Xu Li, Haoliang Zhang, Bangyun Xiong, Pengfei Fang, Chunqing He
Summary: N-self-doped graphitic carbon aerogels (NGCA) with hierarchically porous tunnels, high graphitization degree, high N content, and 3D conductive network structure were successfully prepared by dry-freezing and successive high temperature treatment of ZIF8/carboxymethylcellulose (CMC)/potassium ferrate (K2FeO4) composites. When used in a supercapacitor, NGCA showed excellent capacitive performance and remarkable energy-power characteristics, confirming its potential as a high-performance electrode material.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Tao Wang, Jia Guo, Yao Guo, Jing Feng, Dongling Wu
Summary: This study successfully prepared porous nitrogen-doped carbon materials using DES, demonstrating excellent capacitive performance and potential applications in supercapacitors.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Ruhua Zha, Tuo Shi, Zongwen Zhang, Dongli Xu, Tongwu Jiang, Min Zhang
Article
Chemistry, Multidisciplinary
Ruhua Zha, Ming Chen, Tuo Shi, Reddeppa Nadimicherla, Tongwu Jiang, Zongwen Zhang, Min Zhang
Article
Chemistry, Physical
Min Zhang, Liu He, Tuo Shi, Ruhua Zha
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
Review
Green & Sustainable Science & Technology
Ruhua Zha, Tuo Shi, Liu He, Min Zhang
Summary: This article reviews the current state-of-the-art of nanocellulose-oriented self-assembly and advanced environmental remediation. Various construction technologies are described in detail, presenting new opportunities and approaches for applying chemistry and nanotechnology to enhance water treatment and wastewater reuse efficiency and affordability. Finally, several challenges and issues that require further exploration in the future are highlighted.
ADVANCED SUSTAINABLE SYSTEMS
(2022)
Article
Chemistry, Physical
Ruhua Zha, Tuo Shi, Chao Li, He Liu, Min Zhang
Summary: This study shows that surface oxygen vacancies can activate NO and O-2 to improve the photocatalytic oxidation of NO. The introduction of oxygen vacancies restrains carrier recombination and increases the quantum yield, promoting the production of reactive oxygen species and significantly enhancing the visible-light photocatalytic oxidation of NO.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet
Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.
Article
Chemistry, Multidisciplinary
Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives
Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.
Article
Chemistry, Multidisciplinary
Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani
Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.
Article
Chemistry, Multidisciplinary
Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim
Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.
Article
Chemistry, Multidisciplinary
Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu
Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.
Article
Chemistry, Multidisciplinary
Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani
Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Multidisciplinary
Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu
Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.
Article
Chemistry, Multidisciplinary
Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai
Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.
Article
Chemistry, Multidisciplinary
Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee
Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.
Article
Chemistry, Multidisciplinary
Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He
Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.
Article
Chemistry, Multidisciplinary
Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim
Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.
Article
Chemistry, Multidisciplinary
Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong
Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.
Article
Chemistry, Multidisciplinary
Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He
Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.
Article
Chemistry, Multidisciplinary
Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc
Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.
