Article
Chemistry, Multidisciplinary
Hao Li, Shengyang Wang, Mingtan Wang, Yuying Gao, Jianbo Tang, Shengli Zhao, Haibo Chi, Pengfei Zhang, Jiangshan Qu, Fengtao Fan, Can Li
Summary: This study reports the enhancement of solar energy conversion efficiency in plasmon-induced water oxidation by intercalating Li+ into TiO2. The superior photoelectrocatalytic performance of Au/Li0.2TiO2 is mainly attributed to the increased electric conductivity and catalytic activity of Li0.2TiO2. The intercalation of alkaline ions into semiconductors can promote the charge separation efficiency of the plasmonic effect of Au/TiO2.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Environmental
Juanjuan Zhang, Yibing Li, Tengfei Xie, Yuexin Cui, Ran Mao, Xu Zhao
Summary: Carbon aerogel (CA) cathode was used in a photoelectrocatalytic system with TiO2 nanotube arrays (TNA) photoanode to enhance the oxidation of hypophosphite (H2PO2-) and simultaneous recovery of metallic nickel (Ni). The efficiency of H2PO2- oxidation and Ni recovery was significantly increased with the use of CA cathode. The system demonstrated stability and effectiveness in the treatment of electroless nickel plating effluents.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Physical
Yiqiong Hu, Qiongyan Niu, Yuxin Wang, Ya-nan Zhang, Guohua Zhao
Summary: Constructing a 3D {001}TiO2/Ti photoelectrode on Ti mesh leads to significantly improved efficiency in DMP degradation and excellent stability. Factors affecting DMP degradation were studied, and a referable mineralization mechanism was proposed based on new-discovered compounds.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Juanqin Xue, Wen Cheng, Long Shi, Yuqing Li, Mengjiao Sheng, Yuzhu Shi, Qiang Bi
Summary: This study prepared a BiOI/CA composite electrode to enhance photocatalytic activity by utilizing BiOI loaded on a carbon aerogel substrate. The electrode exhibited increased surface area, enhanced interfacial interaction, and strong adsorption, leading to efficient organic compound degradation. The composite electrode also promoted rapid electron transfer, inhibited electron-hole pair recombination, and extended visible light absorption range, resulting in significantly improved phenol degradation efficiency.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Applied
Jiafei Ren, Jianyu Feng, Linbin Wang, Guangxin Chen, Zheng Zhou, Qifang Li
Summary: A UV-initiated thiol-ene click reaction was used to synthesize a multifunctional POSS-based silane coupling agent OTS, which then was utilized with tetraethyl orthosilicate as precursors to prepare a series of hybrid aerogels with different OTS contents. These hybrid aerogels showed more uniform mesoporous structure and higher specific surface area compared to silica aerogels prepared from single TEOS, and had potential applications as adsorbents or thermal insulation materials.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Engineering, Environmental
Ting Wang, Zuguang Liu, Pengfei Li, Huiqing Wei, Kexin Wei, Xingren Chen
Summary: The study demonstrates the synthesis of lignin-based carbon aerogels (LECAs) with excellent supercapacitor performance from Kraft lignin extracted from black liquor. The LECA exhibits high specific capacitance and stability as a supercapacitor electrode material, as well as high energy and power densities in a symmetric LECA-based supercapacitor.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Multidisciplinary Sciences
Zhenhua Li, Lan Luo, Min Li, Wangsong Chen, Yuguang Liu, Jiangrong Yang, Si-Min Xu, Hua Zhou, Lina Ma, Ming Xu, Xianggui Kong, Haohong Duan
Summary: Photoelectrochemical cells have been proposed as promising tools for C-H functionalisation and H2 production. In this work, a photoelectrocatalytic strategy using an oxygen-vacancy-rich TiO2 photoanode was developed for efficient production of organic halides. This approach demonstrated broad substrate scope and high productivity using seawater as the electrolyte and chloride ions source.
NATURE COMMUNICATIONS
(2021)
Article
Environmental Sciences
Jie Li, Yuxiang Yang, Zhiyong Han, Yan Huang, Hongming Yuan, Chaoying Ni
Summary: In this paper, Fe-Ce bimetallic-doped composites were synthesized using SiO2 aerogel as a carrier for the adsorption and degradation of trinitrogen from industrial or domestic wastewater. The photocatalytic efficiency was found to be the best when the catalyst dosage was 0.01 g, pH value was 11.0, and the concentration of H2O2 was 80 mmol/L, with the degradation efficiency of trinitrogen remaining above 70%.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Tao Xu, Kraen C. Adamsen, Zheshen Li, Lutz Lammich, Jeppe Lauritsen, Stefan Wendt
Summary: We used STM and XPS to investigate the molecular and electronic structure of submonolayer tungsten oxide on different TiO2 surfaces. The results show that the geometry of the tungsten oxide species depends on the supporting facet, and surface diffusion occurs at elevated temperatures. Additionally, the oxidation and reduction properties of thick and thin layers of tungsten oxide are different, with the reduction being influenced by the TiO2 surface and substrate defects.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Ricardo Marques e Silva, Fernanda de Lourdes Souza, Eduardo Dias, Gelson Tiago dos Santos Tavares da Silva, Florymar Escalona Duran, Arjun Rego, Drew Higgins, Caue Ribeiro
Summary: Partial oxidation of methane into hydrocarbons using photoelectrochemical routes is attractive for sustainable development. The use of semiconductor heterostructures can improve charge separation and enhance the efficiency of methane activation and oxidation. In this study, TiO2:SnO2 heterojunction catalysts exhibited superior performance in methane oxidation due to the formation of heterostructure type II, which facilitates the separation of electron-hole pairs and promotes the generation of reactive oxygens.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Biochemistry & Molecular Biology
Shuaibiao Liu, Yehong Chen, Padonou-Kengue Patrick Dorsel, Chaojun Wu
Summary: By combining conductive materials and physical cross-linking, the area-specific capacitance of nanocellulose-based composite aerogel electrodes can be strengthened to obtain high-performance supercapacitors.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Physical
Chenguang Shi, Junlong Huang, Youchen Tang, Zongheng Cen, Zelin Wang, Shaohong Liu, Ruowen Fu
Summary: A hierarchical porous carbon aerogel embedded with small-sized TiO2 nanoparticles (HPCA-TO) was prepared for enhancing the performance of lithium-sulfur batteries. The HPCA-TO effectively suppressed the shuttle effect of polysulfides and improved the conversion kinetics of polysulfides. The modified Li-S batteries exhibited high initial discharge capacity and excellent rate capability.
Article
Chemistry, Physical
Kede Wu, Qi Zhou, Junxiang Cao, Zhen Qian, Bo Niu, Donghui Long
Summary: Silica-modified carbon aerogels (SCAs) with high strength and good thermal properties were prepared using a facile method. The SCAs possess a mesoporous structure and exhibit high compressive strength and thermal conductivity, making them promising for high-temperature insulation under harsh conditions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Huan Wang, Fan Qi, Xiangjuan Chen, Hongxia Guo, Wenquan Cui
Summary: TiO2/P3HT photoelectrodes prepared by hydrothermal and dip-coating methods have a broad solar response range, higher photocurrent than TiO2, and more efficient degradation of BPA. A synergetic effect of photoelectrocatalysis was achieved, and the composite photoelectrode exhibited good stability.
Article
Chemistry, Multidisciplinary
Wei Cheng, Wenling Jiao, Yifan Fei, Zaihui Yang, Xiaohua Zhang, Fan Wu, Yitao Liu, Xia Yin, Bin Ding
Summary: In this study, a low-cost and scalable method was reported to fabricate N-doped TiO2 ceramic nanofibrous sponges with ultra-low density and high mechanical strength. The sponges exhibited a continuous stratified structure and the nitrogen doping through dopamine introduction resulted in smoother and less defective nanofiber surfaces. The interlamellar spacing of the sponge could be adjusted by the rotating speed, which affected its maximum compressive deformation capacity. The resulting ceramic sponges showed fast recovery under high strain and minimal plastic deformation after multiple compression cycles. Furthermore, the sponge demonstrated temperature-invariant superelasticity and low heat conductivity, indicating excellent thermal insulation properties.
Article
Electrochemistry
Abdul Qayoom Mugheri, Shaista Khan, Ali Asghar Sangah, Aijaz Ahmed Bhutto, Muhammad Younis Laghari, Nadeem Ahmed Mugheri, Asif Ali Jamali, Arsalan Ahmed Mugheri, Nagji Sodho, Abdul Waheed Mastoi, Aftab Kandhro
Summary: Green hydrogen has the potential to transition to a pollution-free energy infrastructure. This study proposes a solution to produce hydrogen during the photoelectrochemical process, offering greater stability and control over chemical reactions. Techno-economic assessments show the efficiency and economic feasibility of co-producing value-added chemicals to enhance green hydrogen production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Danpeng Cheng, Wuxin Sha, Qigao Han, Shun Tang, Jun Zhong, Jinqiao Du, Jie Tian, Yuan-Cheng Cao
Summary: LiNixCoyMn1-x-yO2 (NCM) is a critical cathode material for lithium-ion batteries in electric vehicles. The aging of cathode/electrolyte interfaces leads to capacity degradation and long-term cycle instability. A novel neural network model called ACGNet is developed to predict electrochemical stability windows of crystals, allowing for high-throughput screening of coating materials. LiPO3 is identified as a promising coating material with high oxidation voltage and low cost, which significantly improves the cycle stability of NCM batteries. This study demonstrates the accuracy and potential of machine learning in battery materials.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
P. Mohana, R. Yuvakkumar, G. Ravi, S. Arunmetha
Summary: This study successfully fabricates a non-noble CuO/NiO/rGO nanocomposite and investigates its electrocatalytic performance for oxygen evolution reaction in alkaline environment. The experimental results demonstrate that the electrocatalyst exhibits high activity and good stability, offering a new synthetic approach for sustainable energy production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Qiong Qu, Jing Guo, Hongyu Wang, Kai Zhang, Jingde Li
Summary: In this study, a bifunctional electrode host design consisting of carbon nanofibers implanted ordered porous Co-decorated Al2O3 supported on carbon nanotube film (CNTF) was proposed to address the shuttling effect of lithium polysulfides (LiPSs) and dendrite formation of metal lithium anode in lithium-sulfur (Li-S) batteries. The electrode exhibited excellent conductivity, efficient confinement of LiPSs, and catalytic conversion performance, resulting in high initial capacity and good capacity retention during cycling. As an anode, the electrode showed excellent Li+ diffusion performance and uniform lithium growth behavior, achieving a dendrite-free lithium electrode. The flexible pack cell assembled from these electrodes delivered a specific capacity of 972 mAh g(-1) with good capacity retention.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Hong Zhang, Jin-Peng Yu, Chen Chen, Cheng-Yong Shu, Guang-Yu Xu, Jie Ren, Kai Cui, Wen-Fang Cai, Yun-Hai Wang, Kun Guo
Summary: Spray coating of acetylene black nanoparticles onto stainless steel mesh can enhance its biofilm formation ability and current density, making it a promising electrode material for microbial electrochemical systems. The spray coating method is simple, cost-effective, and suitable for large-size stainless steel electrodes.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Binpeng Hou, Jingjin Chen, Li-Hong Zhang, Xiaowen Shi, Zizhong Zhu
Summary: The electrochemical performance of Li1.20Mn0.44Ni0.32Co0.04O2 and its oxygen-deficient phase Li1.20Mn0.44Ni0.32Co0.04O1.83 was studied through first-principles calculations. The results show that the oxygen-deficient phase has a higher theoretical capacity but lower voltage platform and higher chemical activity compared to the pristine phase.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Yating Du, Sayoko Shironita, Daisuke Asakura, Eiji Hosono, Yoshitsugu Sone, Yugo Miseki, Eiichi Kobayashi, Minoru Umeda
Summary: This study investigates the effect of high- and low-temperature environments on the charge-discharge performance of a Li-ion battery. The deterioration mechanisms of the battery at different temperatures are analyzed through various characterization techniques. The results indicate that the battery performance deteriorates more significantly at a low-temperature environment of 5 degrees C compared to higher temperatures. The understanding of the deterioration mechanisms can contribute to the development of safer battery usage methods.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Si-Si Shi, Zhi-Xiang Yuan, Fei Zhang, Ping Chen
Summary: In this study, a new nano-electrocatalyst was prepared, which exhibited superior electrocatalytic activity for the reduction of NO2- to ammonia in a neutral electrolyte, potentially due to the synergistic enhancement between Co3O4-x and Co.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Berna Dalkiran, Havva Bekirog
Summary: This study reports the use of deep eutectic solvents (DES) based on ethylene glycol and urea as low-cost and green electrolytes for enhancing electrochemical detection of natural antioxidants. The study successfully developed a disposable and effective electrochemical sensing platform for simultaneous determination of ascorbic acid (AA) and gallic acid (GA) using NaOH nanorods on a pencil graphite electrode. The proposed electrode showed improved analytical performance, with higher peak currents and shifted oxidation potentials in DES compared to BR buffer medium.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Sijun Ren, Jianguo Huang
Summary: In this study, a novel bio-inspired nanofibrous WO3/carbon composite was synthesized using a facile hydrothermal method. The three-dimensional network structure of the composite alleviated the volume expansion of WO3 nanorods and enhanced the charge-transport kinetics. The optimized composite exhibited superior lithium storage properties.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Zhilong Zheng, Yu Chen, Hongxia Yin, Hengbo Xiao, Xiangji Zhou, Zhiwen Li, Ximin Li, Jin Chen, Songliu Yuan, Junjie Guo, Haibin Yu, Zhen Zhang, Lihua Qian
Summary: This study found that interstitial Zn cations in CoMoO4 can modulate the dissolution kinetics of Mo cations and improve the OER performance. The interstitial Zn cations can prevent the dissolution of Co cations at high potential, enhancing the durability of the catalyst.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Xiaobo Lin, Shern R. Tee, Debra J. Searles, Peter T. Cummings
Summary: Molecular dynamics simulations using the constant potential method were used to investigate the charging dynamics and charge storage of supercapacitors. The simulations revealed that the water-in-salt electrolyte exhibited the highest charge storage and significantly higher capacitance on the negative electrode. The varying contributions of different electrode regions to supercapacitor performance were also demonstrated.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Wiktoria Lipinska, Vita Saska, Katarzyna Siuzdak, Jakub Karczewski, Karol Zaleski, Emerson Coy, Anne de Poulpiquet, Ievgen Mazurenko, Elisabeth Lojou
Summary: The spatial distribution of enzymes on electrodes is important for bioelectrocatalysis. In this study, controlled spatial distribution of gold nanoparticles on Ti nanodimples was achieved. The efficiency of enzymatic O2 reduction was found to be influenced by the size of the gold nanoparticles and their colocalization with TiO2. The highest stability of enzymatic current was observed with the largest gold nanoparticles.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Tariq M. Al-Hejri, Zeenat A. Shaikh, Ahmed H. Al-Naggar, Siddheshwar D. Raut, Tabassum Siddiqui, Hamdan M. Danamah, Vijaykumar V. Jadhav, Abdullah M. Al-Enizi, Rajaram S. Mane
Summary: This study explores a promising self-growth approach for the synthesis of nickel hydroxide (Ni(OH)2) nanosponge-balls on the surface of a nickel-foam (NiF) electrode. The modified NiF electrode, named Ni(OH)2@NiF, shows distinctive nanosponge-ball morphology and demonstrates excellent energy storage capability and electrocatalytic performance in both hydrogen and oxygen evolution reactions.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Rafael Del Olmo, Gregorio Guzman-Gonzalez, Oihane Sanz, Maria Forsyth, Nerea Casado
Summary: The use of Lithium-Ion Batteries (LIBs) is becoming increasingly extensive, and it is important to optimize the devices to achieve their maximum practical specific capacity. In this study, mixed ionic-electronic conducting (MIEC) binders based on PEDOT:PSS and PEDOT: PDADMA-TFSI were developed for Li-ion cathodes, and their performance was compared with conventional formulations. The influence of electrode formulations, including the addition of conducting carbon and an Organic Ionic Plastic Cristal (OIPC), was also analyzed. The proposed binders showed improved performance compared to conventional formulations with different electrolyte types and active materials.
ELECTROCHIMICA ACTA
(2024)