Article
Chemistry, Physical
Hongming Zhao, Haitao Fu, Xiaohong Yang, Shixian Xiong, Dezhi Han, Xizhong An
Summary: This study demonstrates a high-performance visible-light-driven photocatalyst for water splitting H-2 production. The MoS2/CdS nanocomposites exhibit excellent H-2 evolution rates and apparent quantum efficiency due to the modified surface of CdS nanorods with MoS2 nanosheets.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Environmental
Zhanfen Chen, Jiaqi Pan, Jie Mei, Qi Yu, Panhong Wang, Peipei Wang, Jingjing Wang, Changsheng Song, Yingying Zheng, Chaorong Li
Summary: A ternary Co3O4/CdS/SrTiO3 core-shell pn junction is fabricated by depositing a CdS shell on the surface of a SrTiO3 nanosphere, followed by growing p-type Co3O4 lamellas on the CdS/SrTiO3 core-shell heterojunction surface. The resulting structure shows a 15-fold enhancement in hydrogen evolution ability compared to single SrTiO3 nanospheres, attributed to the narrow band gaps of CdS and Co3O4 increasing visible light response and efficient charge carrier transfer into water. Additionally, the core-shell structure provides active sites and shortens the photoelectron transport path to improve photocatalytic stability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Tao Song, Junwen Wang, Lei Su, Haoyang Xu, Xiaoyu Bai, Lina Zhou, Weixia Tu
Summary: The combination of ReS2 and MoS2 as cocatalysts for CdS photocatalyst facilitates efficient hydrogen production, with the introduction of a small amount of rhenium significantly enhancing the photocatalytic activity. The dual Z-scheme electron transfer pathway in MoS2/ReS2@CdS photocatalyst is attributed to the remarkable enhancement in photocatalytic performance.
MOLECULAR CATALYSIS
(2021)
Article
Chemistry, Physical
Lian Xue, Ying Shi, Cunping Huang, Qiang Wu, Bingbing Chen, Weifeng Yao
Summary: In this study, a Zn2+ and Ni2+ modified carbon hydrogen evolution cocatalyst (ZnNi-C) was synthesized and immobilized onto the surface of CdS for photocatalytic hydrogen evolution. The optimized CdS@ZnNi-C photocatalyst exhibited a hydrogen evolution rate of 15.7 mmol/h/g and an apparent quantum efficiency (AQE) of 31.4% at 420 nm, which were significantly higher than those of other modified carbon cocatalysts. The improved catalytic performance was attributed to the co-anchored Zn2+ and Ni2+ in carbon layers, which resulted in a favorable Gibbs free energy for hydrogen evolution.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Yingrui Wang, Chao Liu, Cui Kong, Fengjun Zhang
Summary: This study investigates the synergistic effect of ternary photocatalysts with Defect MoS2 and Ti3C2 on CdS, enhancing its performance in photocatalytic hydrogen production. The results show that the Defect MoS2/Ti3C2/CdS photocatalyst exhibits excellent hydrogen production performance, surpassing CdS, Ti3C2/CdS, and Defect MoS2/CdS by 18.5, 12.4, and 1.2 times, respectively. The synergistic interaction between Defect MoS2, Ti3C2, and CdS improves carrier separation efficiency and suppresses recombination. The study proposes a plausible photocatalytic hydrogen production mechanism for Defect MoS2/Ti3C2/CdS. The dual co-catalysts offer a feasible approach for the development of composite catalysts.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Kang Peng, Linjie Zuo, Yihan Wang, Jingying Ye, Hongjie Wang, Yanlin Jia, Min Niu, Lei Su, Lei Zhuang, Xiaoyu Li
Summary: Reduced graphene oxide coated montmorillonite (rGO/Mt) was used as a hydrophilic conductive catalyst carrier to assemble CdS and MoS2 heterostructures. The composites exhibited efficient photocatalytic H2 evolution rate due to the synergistic effect of the carrier material.
APPLIED CLAY SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Chuanbiao Bie, Bicheng Zhu, Linxi Wang, Huogen Yu, Chenhui Jiang, Tao Chen, Jiaguo Yu
Summary: A bifunctional dual-cocatalyst-modified photocatalyst is constructed for hydrogen evolution and selective pyruvic acid production. A two-step single-electron route for pyruvic acid production is proposed based on monitoring the intermediates.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
D. Praveen Kumar, Sumin Seo, A. Putta Rangappa, Seunghee Kim, K. Arun Joshi Reddy, Madhusudana Gopannagari, P. Bhavani, D. Amaranatha Reddy, Tae Kyu Kim
Summary: The use of non-precious and noble-metal free catalysts for water photo conversion into hydrogen is of significant interest, and the doping of a foreign metal into the MoS2 system has been found to be an effective method for enhancing the hydrogen production rate. In this study, CdS nanorods are decorated with zinc-doped MoS2 nanosheets, and the resulting composite shows excellent photocatalytic activity for hydrogen evolution. The loading of Zn-MoS2 enhances the synergistic effects of the photocatalyst and improves the stability of the material. This Zn-MoS2/CdS composite is believed to have great potential as a low-cost, highly-efficient catalyst for the photocatalytic reduction of water.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Kejie Zhang, Zhen Mou, Shihai Cao, Tingting Meng, Jiacheng Li, Guangjie Ling, Xiang Zhang, Zhiping Zhou, Wei Meng
Summary: A novel nano-heterojunction photocatalyst of CdS/MoS2 was successfully obtained by a facile two-step hydrothermal synthesis method. The combination of MoS2 ultrathin layer and CdS nanosheets facilitated charge transfer and separation, leading to significantly enhanced photocatalytic performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Chemical
Haitao Fu, Hongming Zhao, Xiaohong Yang, Shixian Xiong, Xizhong An
Summary: This study demonstrates high-performance visible-light-driven H-2-evolution photocatalysts based on novel CdS nanodiamonds decorated with MoS(2) nanosheets. The composites exhibited enhanced photocatalytic performances due to improved optical absorption range, low recombination rate of the photo-generated electrons and holes, extra generated charges, excellent charge transfer ability, and increased donor density.
Article
Chemistry, Physical
Y. M. Hunge, A. A. Yadav, Seok-Won Kang, Sung Jun Lim, Hyunmin Kim
Summary: In the process of photocatalysis, photon energy is converted into chemical energy using light and catalyst. This process has various applications such as degradation of hazardous compounds, nitrogen fixation, hydrogen production, air purification, water splitting, and carbon dioxide reduction. The study focuses on the synthesis of ZnO and MoS2/ZnO composites and their applications in photocatalytic degradation of ciprofloxacin antibiotic and hydrogen production. The MoS2/ZnO composites show superior photocatalytic activity compared to ZnO, attributed to extended light absorption capacity, effective charge transfer, suitable band alignment, and minimum recombination of charge carriers.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Chemistry, Physical
Chenhao Sun, Fangqin Li, Jianxing Ren, Jiang Wu, Guanjun Wang, Linfeng Chen
Summary: By studying a flower-like 1T/2H-MoS2-decorated photocatalyst in wastewater, it was found that the 20% sample exhibited the highest photoreactivity and hydrogen release rate, while efficiently degrading organic matter. This research provides a prospective idea for utilizing wastewater and simultaneously generating clean energy.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Lili Song, Xiaoyun Zhang, Shifan Zhu, Yixue Xu, Yuqiao Wang
Summary: The weak hydrogen adsorption and slow catalytic kinetics of MoS2 in alkaline solution hinder its performance as a catalyst for hydrogen evolution reaction (HER). This study demonstrates that carbon quantum dots (CQDs) can enhance the proton adsorption of MoS2 by establishing a suitable hydrogen adsorption gradient and promoting hydrogen spillover from CQDs to MoS2. The enhanced hydrogen spillover effect by CQDs activated MoS2 offers new possibilities for the design and preparation of efficient and low-cost catalysts.
Article
Nanoscience & Nanotechnology
Kaiyue Liang, Mingcai Yin, Yixian Li, Yaoting Fan, Zhongjun Li
Summary: In this study, a ternary composite MoS2/CN/CdS with high photocatalytic hydrogen production activity was successfully prepared and investigated in detail. The activity reached 1253.2 mu mol h(-1) when the MoS2/CN content was 10 wt.%, showing good stability and providing important insights for the design of CdS-based photocatalysts.
Article
Chemistry, Multidisciplinary
Hui-Qin Zheng, Wen-Li Zhang, Min-Cai Yin, Yao-Ting Fan
Summary: A ternary composite MoS2/soluble g-C3N4/CdS was synthesized and characterized. The composite exhibited high photocatalytic activity for hydrogen production under optimal conditions.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Mingcai Yin, Jiangfan Sun, Yixian Li, Huan Zhou, Fangfang Qiao, Yaoting Fan, Zhongjun Li
MATERIALS RESEARCH EXPRESS
(2019)
Article
Nanoscience & Nanotechnology
Mingcai Yin, Yixian Li, Kaiyue Liang, Jiangfan Sun, Yaoting Fan, Zhongjun Li
Article
Nanoscience & Nanotechnology
Kaiyue Liang, Mingcai Yin, Yixian Li, Yaoting Fan, Zhongjun Li
Summary: In this study, a ternary composite MoS2/CN/CdS with high photocatalytic hydrogen production activity was successfully prepared and investigated in detail. The activity reached 1253.2 mu mol h(-1) when the MoS2/CN content was 10 wt.%, showing good stability and providing important insights for the design of CdS-based photocatalysts.
Article
Chemistry, Multidisciplinary
Yixian Li, Mingcai Yin, Jiangfan Sun, Kaiyue Liang, Yaoting Fan, Zhongjun Li
Summary: In this study, cubic CdS with promising photocatalytic performance was successfully prepared by a simple precipitation method. The optimization of preparation conditions and investigation of photostability were systematically conducted to provide insights into the performance of cubic CdS for hydrogen production.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Mingcai Yin, Wenli Zhang, Hui Li, Chaojun Wu, Fangfang Jia, Yaoting Fan, Zhongjun Li
NEW JOURNAL OF CHEMISTRY
(2019)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)