Article
Chemistry, Multidisciplinary
Wenjian Zou, Jiadong Xiang, Hao Tang
Summary: Clean renewable energy conversion and storage technologies require cost-effective trifunctional electrocatalysts for oxygen reduction, oxygen evolution, and hydrogen evolution reactions. In this study, a 3D heterogeneous nano-architecture composed of CoP, Co2P, and Co3O4 was fabricated, exhibiting outstanding activities towards these reactions. The electrocatalyst showed superior efficiency in a Zn-air battery and low potential in an electrolyzer for overall water splitting.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Physical
Shuqi Hu, Yuying Liu, Shuangbao Wang, Xinyi Zhang, Pei Kang Shen
Summary: The study demonstrates that ultrathin Co(OH)(2) nanoparticles can be converted into Co3O4-Pt core-shell nanoparticles with high Pt utilization through thermal annealing and controlled replacement reaction on 3D graphene. This nanostructure shows optimized mass activity and specific activity, significantly outperforming traditional Pt/C catalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Shanshan Xiong, Mengxian Lin, Lingdan Wang, Shuai Liu, Shuting Weng, Shuyao Jiang, Yanchao Xu, Yang Jiao, Jianrong Chen
Summary: This study proposes a method to enhance the electrochemical performance of Co3O4 nanoflowers by introducing point defects to increase electrochemical active sites and reduce ion diffusion distance, resulting in outstanding performance of Co3O4 nanoflowers at low temperatures.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Sheng Zhu, Lingtong Ding, Xuehuan Zhang, Kun Wang, Xiao Wang, Feng Yang, Gaoyi Han
Summary: A novel one-dimensional heterostructured ORR catalyst, FePc-{PW12}@NTs, was fabricated through the host-guest self-assembly of FePc and polyoxometalate-encapsulated carbon nanotubes. The heterostructure exhibits enhanced ORR catalytic performance due to the strain and curvature effects of {PW12}@NT scaffold, which tune the geometric structure and electronic localization of FeN4 centers. The FePc-{PW12}@NT electrocatalyst demonstrates excellent durability, methanol tolerance, and ORR activity in alkaline medium, surpassing the performance of the commercial Pt/C+IrO2 cathode.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Hemam Rachna Devi, Omeshwari Yadorao Bisen, Zhong Chen, Karuna Kar Nanda
Summary: The rational design of bifunctional electrocatalyst is important for sustainable energy storage and conversion devices. In this study, a unique architecture of carbon nanotubes supported on an oxide template was designed. This design showed enhanced water oxidation performance and oxygen reduction reaction activity.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Zhiyu Shao, Xia Gao, Qian Zhu, Weifeng Zhao, Xiaotian Wu, Keke Huang, Shouhua Feng
Summary: By selectively doping different ions with different radii, the coordination sites of Co3O4 were modulated, leading to a higher intrinsic activity in the oxygen evolution reaction (OER) due to improved electrical conductivity and the formation of highly active Co3+/Co4+ species.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Yang Chen, Xiaojun Zhao, Qiujuan Zhang, Xinjia Miao, Yan Chen, Weiting Yang, Qinhe Pan
Summary: Direct seawater splitting for hydrogen production is a promising strategy to reduce fossil energy consumption and freshwater stress. A hierarchical carbon-based catalyst, ZIF-67/CF-1, was prepared and demonstrated excellent electrocatalytic activity and stability for overall seawater splitting and oxygen reduction. The catalyst showed comparable performance to precious metal-based electrolyzers, indicating its potential application in renewable energy technologies.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Daorui Wang, Ya-Ping Deng, Yongguang Zhang, Yan Zhao, Guofu Zhou, Lingling Shui, Yongfeng Hu, Mohsen Shakouri, Xin Wang, Zhongwei Chen
Summary: The three-dimensionally ordered macroporous (3DOM) Co3O4 electrocatalyst with phosphorization treatment demonstrates high bifunctionality for oxygen reduction and evolution reactions, showing promising potential for practical application.
ENERGY STORAGE MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Xiaoyu Zhang, Ge Ma, Lingling Shui, Guofu Zhou, Xin Wang
Summary: This study successfully prepared ultrathin Co3O4 nanosheets with abundant oxygen vacancies on conductive carbon nanotube nanocomposites using a new synthesis method, showing high electrochemical performance and stability. Additionally, this material exhibited good energy density in a two-electrode system.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Electrical & Electronic
Shidong Li, Jincheng Fan, Guocai Xiao, Shanqiang Gao, Kexin Cui, Chaoqun Niu, Wenbin Luo, Hongguang Jin, Zisheng Chao
Summary: In this study, Co3O4 nanomaterials were synthesized on nickel foam using a simple method, and their electrochemical properties for supercapacitors and electrochemical hydrogen production were investigated. The Co3O4/NF nanomaterials showed high specific capacitance and cycling stability as electrode materials for supercapacitors, and exhibited excellent catalytic performance in electrolytic hydrogen production.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Multidisciplinary
Jiajia Li, Jiaqi Qian, Xiaoyu Chen, Xiaoxi Zeng, Ling Li, Bo Ouyang, Erjun Kan, Wenming Zhang
Summary: A novel Co/Ni@GC/NCNTs/CNFs nanoarchitecture with superior catalytic performance and stability was fabricated for microbial fuel cells. The catalyst remarkably enhances the performance of oxygen reduction reaction, oxygen evolution reaction and hydrogen evolution reaction.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Wei-Li Sun, Chao Xu, Peng-Peng Guo, Chen Lu, Kun-Zu Yang, Ping-Jie Wei, Jin-Gang Liu
Summary: Three-dimensional hierarchical porous Fe, N-doped hollow carbon nano-spheres (Fe-N-C HPNCs) were used as efficient ORR electrocatalysts. They exhibited superior catalytic activity and stability compared to commercial Pt/C catalysts, making them suitable for applications in Zn-air batteries.
Article
Energy & Fuels
Guoru Li, Xiaoting Yu, Fengxiang Yin, Zhiping Lei, Xinran Zhao, Xiaobo He, Zhichun Li
Summary: By doping Te into spinel Co3O4 catalysts, this study successfully reduced the overpotential of the oxygen evolution reaction and increased the efficiency of water splitting. The lattice distortion caused by Te doping resulted in smaller Te-Co3O4 particles with larger surface area for better accessibility of active sites, while the introduction of oxygen vacancies modified the electronic structure and improved the density of active sites. The overall effects contributed to enhanced reaction kinetics and minimized overpotentials in high-performance electrocatalysis.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Pouria Pakzad, Mehdi Mehrpooya, Fathollah Pourfayaz, Mohammad Reza Ganjali
Summary: This study investigates the electrochemical performance of Ce-PGCN,NS/Co3O4 as a metal-free ORR electrocatalyst and supercapacitor electrode. Various tests including FESEM, TEM, BET, FTIR, XRD, EDX, and Raman were conducted to characterize the synthesized electrocatalysts. The results show that Ce-PGCN,NS/Co3O4 exhibits excellent electrochemical performance as an ORR electrocatalyst and supercapacitor electrode, making it a promising alternative to commercial Pt/C catalysts. The addition of Co3O4 nanorods and doping Cerium atoms positively impact the electrocatalytic activity of g-C3N4.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Environmental Sciences
Mabrook S. Amer, Prabhakarn Arunachalam, Abdullah M. Al-Mayouf, Ahmad A. Alsaleh, Zeyad A. Almutairi
Summary: A low-cost electrode material is developed for electrocatalytic water and urea oxidation reactions, which are crucial for generating hydrogen. This material exhibits high efficiency and durability in oxygen evolution reaction (OER) and urea oxidation reaction (UOR).
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)