Article
Chemistry, Applied
Xue-Peng Yin, Shu-Wen Luo, Shang-Feng Tang, Xiu-Li Lu, Tong-Bu Lu
Summary: A new NiBi/GDY hybrid catalyst was prepared in this study, showing optimized electronic structure and improved catalytic performance for both photocatalytic and electrocatalytic H-2 evolution. GDY proves to be an ideal support for the development of highly active catalysts in this field.
CHINESE JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Physical
Zhaoxia Cao, Jian Guo, Shengnan Chen, Zhennan Zhang, Zhenpu Shi, Yanhong Yin, Mingguo Yang, Xiaoxu Wang, Shuting Yang
Summary: This study proposes an effective strategy to enhance the performance of lithium-sulfur batteries by synthesizing ultrafine heterostructural Nb2O5-NbC distributed homogeneously in a carbon nanofiber matrix. Using polystyrene as a nanocrystallite growth modulator successfully suppresses particle agglomeration, forming in situ heterostructures that regulate lithium polysulfide effectively and speed up redox kinetics. The battery containing these heterostructures shows long-term stability with low capacity decay, even after hundreds of cycles at different discharge rates and sulfur loadings.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Guoguang Xu, Qi Wang, Yi Su, Meinan Liu, Qingwen Li, Yuegang Zhang
Summary: With the development of clean energy sources, large-scale energy storage technologies have become important. Sodium ion batteries, as a potential storage solution, require good electrode materials. Orthogonal-phase niobium oxide has shown good performance, but its poor electrical conductivity has been a limitation. Recent studies have used carbon materials or metal conductive particles to improve its performance. In this study, in situ TEM was used to investigate the diffusion behavior of sodium ions in nanosheets and observed defects and a modulation structure.
ACTA PHYSICO-CHIMICA SINICA
(2022)
Article
Chemistry, Physical
Yuan Wang, Xiong Liu, Guobao Xu, Yongle Liang, Wentao Ni, Banghui Wu, Liwen Yang
Summary: In this study, orthorhombic V2O5 nanobelts composite film was investigated for aqueous zinc-ion batteries. The results showed that the composite film exhibited excellent rate capability and high capacity retention. Moreover, soft-package batteries assembled with the composite film showed steady electrochemical performance due to its outstanding conductivity and flexibility.
Article
Chemistry, Multidisciplinary
Xiao Zhang, Ping Yang, San Ping Jiang
Summary: The study investigates the photocatalytic capabilities of WS2/WO3/g-C3N4 heterostructures, revealing the significant impact of WS2/WO3 ratio and efficient separation of photogenerated charge carriers on photocatalytic performance, with crystalline g-C3N4 aiding in enhancing photocatalytic activity.
JOURNAL OF NANOSTRUCTURE IN CHEMISTRY
(2021)
Article
Environmental Sciences
Tran Le Luu, Pham Thi Kim Ngan
Summary: Textile wastewater containing harmful organic compounds and colors can affect aquatic life and human health. This study aims to fabricate Ti/SnO2-Nb2O5 electrodes for the treatment of textile wastewater. The Ti/SnO2-Nb2O5 electrode with a mole ratio of 3:7 showed the best performance with a longest service life of 39 hours in textile wastewater treatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Energy & Fuels
Gang Liu, Lei Shi, Lizhu Yao, Lishuang Cui
Summary: This study focuses on enhancing the activity of g-C3N4 in photocatalysis by introducing defect-modified mesoporous structures, showing that DMCN exhibits better catalytic performance compared to CN. The improved photocatalytic activity is attributed to the increase in catalytic sites and the promotion of charge separation efficiency through the introduction of defects.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Jiaqian Yin, Zeyu Xu, Ziwei Xiao, Haibo Shao, Jianming Wang
Summary: A high-performance porous Si@Sn composite material was successfully synthesized using a photo electrochemical deposition strategy, showing excellent lithium storage performance under optimized conditions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Environmental
Zeyu Xu, En Zheng, Ziwei Xiao, Haibo Shao, Yingchun Liu, Jianming Wang
Summary: A simple and environmentally friendly photoinitiated fabrication approach is designed to synthesize yolk-shell like polypyrrole-iron coated porous silicon microspheres (PSi@PPy-Fe) as anode materials for LIBs based on the photoelectric effect of semiconductor silicon. The polymerization of pyrrole monomers only occurs on the interface of silicon matrix where the vacancies are available, effectively avoiding the production of free PPy-Fe particles. XPS and first-principles calculations reveal the formation of hydrogen-bond interaction and covalent linkage between Si and PPy-Fe layer, which is important for maintaining good contact and strengthening structure stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Physics, Multidisciplinary
Z. J. Kadhim, M. A. Mahdi
Summary: Silicon nanowires (SiNWs) were prepared via a two-step metal-assisted chemical etching (MACE) method using n-Si(100) for 15 and 30 minutes. The morphology, structure, and optical properties of the SiNWs were studied using SEM, XRD, and UV-vis absorption. A photoelectrochemical cell (PEC) was used to measure the properties of a photoanode device based on n-SiNWs for water splitting. The SiNWs prepared in 30 minutes exhibited a photocurrent density of 3.72 mA.cm(-2) and a photoconversion efficiency of 1.37% at 0.78 V.
Article
Chemistry, Applied
Cunyuan Pei, Yameng Yin, Xiaobin Liao, Fangyu Xiong, Qinyou An, Mengda Jin, Yan Zhao, Liqiang Mai
Summary: The most suitable crystal structure for ions storage and the corresponding reaction mechanism for Mg-based batteries remain a challenge. High flexible graphene network supporting different crystal structures of Nb2O5 have been synthesized by a spray-drying-assisted approach. The investigations reveal the different capacities and diffusion kinetics of Nb2O5 crystal structures for Mg-storage and Li-storage.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Chemistry, Physical
Cailing Song, Wen Zhang, Qianwen Jin, Yongguang Zhang, Xin Wang, Zhumabay Bakenov
Summary: This research focuses on a Nb2C/Nb2O5 heterostructure achieved through water-steam etching for fast trapping-diffusion-conversion of lithium polysulfides in Lithium-sulfur (Li-S) batteries, successfully addressing the issues of dissolution and 'shuttling' of lithium polysulfides. The heterostructured electrode displays superior electrochemical performance, providing valuable insights for the development of high-performance Li-S batteries.
JOURNAL OF POWER SOURCES
(2022)
Review
Chemistry, Organic
Zhenzhi Cai, Sven Trienes, Kairui Liu, Lutz Ackermann, Yan Zhang
Summary: During the past decade, photo- and electrochemical reactions via single-electron-transfer (SET) triggered radical pathways have been widely used to efficiently form chemical bonds. In particular, radical cyclization reactions of 1,n-enynes have been explored for the synthesis of bioactive compounds. This minireview summarizes recent progress in radical cascade cyclizations of 1,n-enynes (n = 5, 6, and 7) under photo/electrochemical conditions until September 2023, providing a categorized overview and understanding for readers.
ORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Materials Science, Multidisciplinary
Zheng Sun, Xu Sun, Xiaotong Gou, Xiaohui Zhao, Liang Shi, Xiaofei Qu
Summary: Bi4NbO8Cl associated with Bi24O31Cl10 and Bi3NbO7 was prepared by a solid-state method, forming heterostructures simultaneously during the removal of impurities. The study focused on the effect of acid on the type of heterostructure and photocatalytic performance of the prepared samples. The results showed that Bi4NbO8Cl/BiOCl/Nb2O5 and Bi4NbO8Cl/BiOCl heterojunctions exhibited improved photocatalytic performance compared to samples prepared by the solid-state method. Bi4NbO8Cl/BiOCl/Nb2O5 with an ethanol/acetic acid ratio of 1:1 showed the best photocatalytic activities, achieving complete degradation of RhB and CIP within two hours and around 67% degradation of BPA within three hours.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Si-Jia Zhang, Han Chen, Yi-Xue Xu, Chang-Sheng An, Kai-Xiong Xiang
Summary: Aqueous solution-based zinc-ion hybrid supercapacitors with high power and energy densities can benefit from Nb2O5 microspheres as electrode materials, which show high specific capacity and long-term capacity retention. The structurally novel microspheres have potential for developing next-generation ZHSCs with excellent performance.
