Article
Nanoscience & Nanotechnology
Taixin Liang, Xuejun Yang, Bo Liu, Ruidong Song, Fei Xiao, Yajun Yang, Dong Wang, Mengyao Dong, Junna Ren, Ben Bin Xu, Hassan Algadi, Yuanyuan Yang
Summary: The combustion behavior of ammonium perchlorate (AP) can be influenced by the addition of catalyst, as well as the combination mode of catalyst and AP. This study investigated different catalysts and AP prepared by mechanical mixing and spray drying composite. The results showed that the spray drying composites exhibited better catalytic performance on the thermal decomposition of AP compared to mechanical mixing. All catalysts passivated the low-temperature decomposition process of AP and catalyzed the high-temperature decomposition process.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Taixin Liang, Ruidong Song, Chong Chen, Taghrid S. Alomar, Fei Xiao, Najla Almasoud, Zeinhom M. El-Bahy, Yuanyuan Yang, Hassan Algadi, Lufeng Sun
Summary: Graphene oxide-supported Cu/Co nano-catalysts with low scale and large surface area were prepared, and a composite of the catalyst and ammonium perchlorate was obtained. The results showed that the composite increased catalytic efficiency, and improved the decomposition temperature and heat release of ammonium perchlorate.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Article
Thermodynamics
Parvathy Chandrababu, Sreeja Beena, Deepthi Thomas, Jayalatha Thankarajan, Vishnu Sukumaran Nair, Rajeev Raghavan
Summary: Five nanometal catalysts (Fe, Co, Ni, Cu, and Zn) were prepared and evaluated for their catalytic activity in the thermal decomposition of ammonium perchlorate (AP). The addition of 0.5% each of Zn, Cu, Ni, Co, and Fe lowered the peak temperature of high-temperature decomposition by 93, 55, 47, 15, and 13 degrees C, respectively. The highest heat energy release of 1910 J g(-1) was achieved with 0.5% Cu. Copper nanometal powder emerged as the most promising catalyst for AP thermal decomposition, improving burn rate and reducing mass penalties.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Chemistry, Physical
Zilin Meng, Jiaxuan Fan, Xiaoyan Cui, Yumei Yan, Ziwei Ju, Runhua Lu, Wenfeng Zhou, Haixiang Gao
Summary: The N8881Cl-LDH@Fe3O4 synthesized in this study exhibited strong adsorption capability for perchlorate. The adsorption process was rapid and not influenced by pH and co-existing anions.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Rui Li, Xiaodong Li, Guangcheng Yang, Changping Guo, Liqing Zhang, Chenchun Hao, Wenkun Zhu
Summary: This work reports a hybrid with metallic Co nanoparticles encapsulated in N-doped defective activated carbon (DAC/Co) as a bi-functional additive with high catalytic activity and high reactivity. The combination of Co nanoparticles and DAC enhances the combustion performance of AP, leading to a shortened combustion duration and increased pressurization rate.
APPLIED SURFACE SCIENCE
(2023)
Article
Thermodynamics
Slimane Bekhouche, Djalal Trache, Amir Abdelaziz, Ahmed Fouzi Tarchoun, Hani Boukeciat
Summary: In the past decade, the scientific community has extensively studied the decomposition of ammonium perchlorate (AP). This research aims to investigate the effect of nanothermite on the thermal decomposition of AP. MgAl-PTFE nanothermite was mechanically activated through arrested reactive milling, coated with potassium perchlorate (KP), and characterized. The results showed that the phase compositions remained unchanged and the presence of nanothermites promoted the thermal decomposition process of AP by reducing the activation energy by about 6%.
THERMOCHIMICA ACTA
(2023)
Article
Thermodynamics
E. A. Kammar, E. A. M. Gad, M. A. Mousa
Summary: NixCo1-xFe2O4 spinel nanoparticles were prepared using different methods and showed catalytic activity in the thermal decomposition of ammonium perchlorate, with NiCoF-gl exhibiting the highest catalytic activity. The addition of nanosized ferrites decreased the decomposition temperatures of AP.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Energy & Fuels
Azmat Ali Khan, Muhammad Tahir
Summary: The study developed a highly active ternary CoAlLa-LDH semiconductor for photocatalytic reduction by enhancing coordinatively unsaturated metal centers through La3+ doping. The optimized Co/Al/La molar ratios led to a promising photocatalyst with high activity in CO2 reduction to CO and CH4, with good stability and selectivity for CH4. The incorporation of lanthanum into the LDH framework demonstrated remarkable performance in developing a new photocatalyst for CO2 reduction.
Article
Chemistry, Applied
Ye Zhong, Zhimin Li, Yiqiang Xu, Guorong Lei, Jianguo Zhang, Tonglai Zhang
Summary: Four new coordination compounds were synthesized and characterized, with complex 1 showing outstanding catalytic activity in the thermal decomposition of ammonium perchlorate. The potential of complex 1 as a combustion additive for solid propellant was suggested based on its catalytic effects and performance improvements.
JOURNAL OF ENERGETIC MATERIALS
(2021)
Article
Chemistry, Physical
Xuechun Xiao, Guofei Zhang, Zhenlong Wang, Yunjiong Zhu, Zhiyong Yan, Yude Wang
Summary: In this study, MCo2O4 catalysts with different Co species substituted with transition metal ion were prepared. These porous catalysts exhibited better catalytic performance for the thermal decomposition of ammonium perchlorate.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Xia Gao, Peng Deng, Kehua Han, Yu Cao
Summary: In this study, CoFe-based oxide nanosheets were prepared and used as catalysts for the thermal decomposition of ammonium perchlorate (AP). The results showed that the CoFe-based oxide nanosheets significantly reduced the decomposition temperature and apparent activation energy of AP, providing a new approach for the preparation and application of functional materials in the field of energetic materials.
CANADIAN JOURNAL OF CHEMISTRY
(2022)
Article
Engineering, Environmental
Tao You, Kuan Deng, Peng Liu, Xingbin Lv, Wen Tian, Hongjiao Li, Junyi Ji
Summary: Green hydrogen is produced through water electrolysis, providing a reliable alternative to fossil fuels. A composite material consisting of N-doped carbon nanorods array, layered double hydroxide (Ni2Fe@Co-NC/CC), and a tri-metal phosphides composite (P-Ni2Fe@Co-NC/CC) is fabricated to improve the efficiency of electron and mass transfer. The Co element in Ni2Fe@Co-NC/CC promotes the formation of high-valence Ni and increases the active sites for oxygen evolution reaction (OER), while the P-Ni2Fe@Co-NC/CC enhances the hydrogen evolution reaction (HER) due to the synergistic effect of trimetallic phosphides and nitrogen-doped carbon structure. The composite material exhibits low overpotentials for OER and HER, as well as excellent electrocatalytic stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Yinli Zhang, Zhen Li, Fengqin Gao, Zhanying Ma, Wuwu Li, Xuan Gao, Guang Fan
Summary: Two copper metal-organic frameworks with L-serine Schiff base and L-tyrosine have been synthesized, and exhibit outstanding catalytic effects.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Chemistry, Physical
Juan Zhang, Bo Jin, Rufang Peng
Summary: The addition of Ni-Co-pzdc catalyst effectively improves the thermal decomposition properties of ammonium perchlorate (AP). Various characterization tools were used to investigate the morphological and structural features of the resulting materials. The thermal decomposition behaviors of the two products were studied, and the results showed excellent catalytic activities for both substances.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jingxiao Li, Yulei Du, Xiaoyong Wang, Xuge Zhi
Summary: Transition metal carbonitrides (MXenes) have special structures and show promising catalytic effects. However, the catalytic mechanisms of MXenes in the thermal decomposition of ammonium perchlorate (AP) have not been extensively studied. In this study, the catalytic properties of Ti2CTx for AP thermal decomposition were investigated through various experiments. The results showed that Ti2CTx can decrease the high-temperature decomposition of AP and increase the decomposition heat. Moreover, the Ti2CTx nanosheets can adsorb gaseous products and react with them in-situ, generating anatase-TiO2 and carbon layers that further catalyze the thermal decomposition of AP.
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)