Article
Polymer Science
Jingjiang Yang, Huiling Li, Shuijian He, Haijuan Du, Kunming Liu, Chunmei Zhang, Shaohua Jiang
Summary: In this study, a novel electrode material, N-doped wood-derived porous carbon-NiCo2O4 nanosheet hybrid (NCNS-NCW) was proposed. The NCNS-NCW electrode exhibited high specific capacitance and excellent electrochemical stability. An assembled all-wood-based asymmetric supercapacitor achieved high energy density and power density.
Article
Chemistry, Physical
Xiaoman Wang, Yuanyuan Deng, Ziheng Wang, Zuwei Li, Luchi Wang, Jie Ouyang, Cui Zhou, Yongfeng Luo
Summary: Wood, as a naturally ordered porous material, has unique advantages in the field of energy storage. Through carbonization, it can be directly loaded with active materials to form a self-supporting electrode material without a conductive agent and binder. In this study, carbon nanotube (CNT) arrays were grown in wood tracheids and nickel-cobalt sulfide (NCS) nanosheets were deposited on CNTs to build self-supporting electrodes. The composite electrode achieved excellent performance, demonstrating the potential of wood-based materials in energy storage applications.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Wenrui Yao, Dingyuan Zheng, Zehuai Li, Yuning Wang, Haiyan Tan, Yanhua Zhang
Summary: A monolithic electrode (CW/MXene) with a dual utilization strategy was proposed, combining the hierarchical porous structure of carbonized wood (CW) and the high electrical conductivity as well as wettability of MXene. This electrode showed impressive electrochemical performance and provided advanced utilization for ultra-thick carbonized wood electrode applications in supercapacitors.
APPLIED SURFACE SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Guoying Zhang, Shaohua Jiang, Il-Doo Kim, Feng Wang, Jiyoung Lee, Lian Chen, Shuijian He, Jingquan Han, Jaewan Ahn, Jun Young Cheong
Summary: The emergence and development of thick electrodes have provided an efficient way for designing high-energy-density supercapacitors. Wood, as a biomass material, possesses a porous hierarchical structure with advantages such as straight channels, uniform pore distribution, good mechanical strength, and easy processing. This review summarizes the design concepts and processing parameters of thick electrode supercapacitors inspired by wood, including wood-based pore structural design, electric double layer capacitance construction, and electrical conductivity optimization. The optimization strategies for preparing wood-inspired thick electrodes, such as 3D printing and freeze-drying, are also discussed, along with current challenges and future trends in this field.
Article
Nanoscience & Nanotechnology
Ching-Hua Yang, Yu-Cheng Hsiao, Lu-Yin Lin
Summary: In this study, carbonized ZIF67 was prepared using an in situ electrospinning method and applied as a freestanding supercapacitor electrode, resulting in electrode materials with excellent performance.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Environmental Sciences
Bing Yan, Jiaojiao Zheng, Li Feng, Cheng Du, Shaoju Jian, Weisen Yang, Yimin A. Wu, Shaohua Jiang, Shuijian He, Wei Chen
Summary: Developing commercial-level high active mass-loading electrodes is crucial for the practical application of supercapacitors. This study presents a self-standing biochar electrode with high active mass-loading, which exhibits excellent capacitive performance due to its conductive carbon skeleton, abundant N/O dopant, and 3D porous structure. The electrode shows promising potential for practical application, as demonstrated by its ability to power various electronic devices.
Article
Energy & Fuels
Rongrong Tian, Chengyuan Duan, Yi Feng, Mengjue Cao, Jianfeng Yao
Summary: A freestanding carbonized wood (CW)-based electrode (CW@CoNiP-C) is fabricated by phosphating a CoNi-metal organic framework on the CW channels. The obtained composite exhibits high areal capacitance and excellent cycling performance, providing valuable insights for designing high-performance electrodes using natural woods and metal organic frameworks.
Article
Engineering, Environmental
Chuanyin Xiong, Bingbing Li, Chao Duan, Lei Dai, Shuangxi Nie, Chengrong Qin, Yongjian Xu, Yonghao Ni
Summary: In this study, a composite material CWCC-rGO@PVA was designed to generate electricity from ambient water, showing high specific capacitance, flexibility and sensitive sensing properties.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Agricultural Engineering
Yangyang Chen, Yuanyuan Yu, Xiaoxuan Zhang, Chenyan Guo, Changzhou Chen, Shuangfei Wang, Douyong Min
Summary: A facile method for preparing carbonized wood (CW) electrodes with superior surface area using self-activation by CO2 and water vapor generated during pyrolysis was reported in this study. The self-activated carbonized wood (SCW) exhibited high specific surface area and electrical conductivity. The SCW electrode demonstrated impressive specific capacitance and high capacitance retention. Furthermore, the symmetrical supercapacitor assembled with SCW electrodes showed high energy density.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Chemistry, Physical
Luchi Wang, Xiaoman Wang, Jie Ouyang, Yuhang Guo, Wanning Xiong, Linlin Zhao, Mengyao Li, Ziheng Hua, Zejun Li, Kun Du, Cui Zhou, Yongfeng Luo
Summary: Polyaniline (PANI) nanomaterials or carbon nanotubes (CNTs) are synthesized on activated wood carbon (AWC) to obtain PANI@AWC and CNT@AWC. MnO2 nanosheets are then electrodeposited on PANI nanomaterials to form a core-shell structure. The introduction of PANI improves loading of MnO2, electrical conductivity, structural stability, and synergistic energy storage. Using the MnO2/ PANI@AWC composite electrode as an anode and CNT@AWC as a cathode, a high-performance all-solid-state supercapacitor is constructed with wide working voltage and high energy density.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Mei-Jiao Zeng, Xiaofeng Li, Wei Li, Tianyu Zhao, Jing Wu, Shu-Meng Hao, Zhong-Zhen Yu
Summary: In this study, high-performance solid-state supercapacitors with high areal capacitance and excellent cycling stability were fabricated using self-supported fir wood-derived carbon electrodes with low tortuosity and hierarchically porous structure, and carbon nanotubes were introduced to provide large specific surface area and excellent chemical stability.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Weimin Chen, Zhao Li, Feng Jiang, Min Luo, Kai Yang, Daotong Zhang, Wangwang Xu, Chaozheng Liu, Xiaoyan Zhou
Summary: Non-carbonized wood-based electrodes and separators with well-aligned channels and excellent mechanical properties are developed for supercapacitors. Ti3C2 nanosheets are loaded into wood cells to enhance conductivity and capacitance. The electrodes show large areal capacitance and high size-customizability. An all-wood based supercapacitor is fabricated, demonstrating high energy density.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Agricultural Engineering
Chuanyin Xiong, Qi Yang, Bingbing Li, Shuangxi Nie, Chengrong Qin, Lei Dai, Muhammad Khan, Yongjian Xu, Yonghao Ni
Summary: A novel hybrid material consisting of carbonized wood and CoS, NiS nanofibers was fabricated as electrode material for high-performance supercapacitors. The natural porous structure of wood provides electrolyte ion channels, while the formation of nanofibers helps increase pores for efficient electrolyte ion transport. The hybrid material shows good supercapacitive performance with high energy and power densities.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Green & Sustainable Science & Technology
Jiaming Cao, Lin Lin, Jian Zhang, Feng Zhao, Junyou Shi, Fachun Guan, Dongliang Wang
Summary: Pretreating wood-derived carbon composites with white-rot fungi can improve the specific surface area and pore structure, leading to enhanced electrochemical performance of the electrodes.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Physical
Maija Kymalainen, Tiina Belt, Hanna Seppalainen, Lauri Rautkari
Summary: Surface carbonization is a method for protecting exterior cladding boards, providing a barrier layer that shields the interior from environmental stresses. Contact charred samples had the lowest mass loss and flame charred samples had higher fungal biomass. The results suggest that surface intactness and the thickness of the modified transition zone play a role in restricting fungal growth.
