Advanced Powder Materials最新文献_第9页

Novel high-entropy perovskite-type symmetrical electrode for efficient and durable carbon dioxide reduction reaction 新型高熵钙钛矿型对称电极，用于高效持久的二氧化碳还原反应

Advanced Powder Materials Pub Date : 2023-10-01 DOI: 10.1016/j.apmate.2023.100129

Dong Zhang , Yao Wang , Yuhan Peng , Yao Luo , Tong Liu , Wei He , Fanglin Chen , Mingyue Ding

{"title":"Novel high-entropy perovskite-type symmetrical electrode for efficient and durable carbon dioxide reduction reaction","authors":"Dong Zhang , Yao Wang , Yuhan Peng , Yao Luo , Tong Liu , Wei He , Fanglin Chen , Mingyue Ding","doi":"10.1016/j.apmate.2023.100129","DOIUrl":"https://doi.org/10.1016/j.apmate.2023.100129","url":null,"abstract":"<div>Excessive emission of carbon dioxide (CO2) has posed an imminent threat to human's environment and global prosperity. To achieve a sustainable future, solid oxide electrolysis cell (SOEC), which can efficiently combine CO2 reduction reaction (CO2RR) and renewable energy storage, has become increasingly attractive owing to its unique functionalities. Additionally, symmetrical SOEC (SSOEC) has been considered as one of the most versatile cell configurations due to its simplified process, high compatibility, and low cost. However, the electrode material requirements become very demanding since efficient catalytic-activities are required for both CO2RR and oxygen evolution reaction (OER). Herein, we demonstrate a novel high-entropy perovskite type symmetrical electrode Pr0.5Ba0.5Mn0.2Fe0.2Co0.2Ni0.2Cu0.2O3-δ (HE-PBM) for SSOEC. B-site doping of transition metals such as Mn, Fe, Co, Ni, and Cu in HE-PBM anode has been found to strongly accelerate the OER in the anode. Moreover, the presence of in-situ formed Fe–Co–Ni–Cu quaternary alloy nanocatalysts from HE-PBM cathode under reducing atmosphere has resulted in superior catalytic-activity towards CO2RR. The faster kinetics are also reflected by the significantly low polarization resistance of 0.289 Ω⋅cm2 and high electrolysis current density of 1.21 A⋅cm−2 for CO2RR at 2.0 V and 800 °C. The excellent electrochemical performance and stability demonstrate that the high-entropy perovskite material is a promising electrode material in SSOEC for efficient and durable CO2RR.</div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"2 4","pages":"Article 100129"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49733632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17

Grain-interior planar defects induced by heteroatom monolayer 杂原子单层引起的颗粒内部平面缺陷

Advanced Powder Materials Pub Date : 2023-10-01 DOI: 10.1016/j.apmate.2023.100130

Xingwei Liu , Haibin Wang , Hao Lu , Xuemei Liu , Zhi Zhao , Chao Hou , Lin Gu , Xiaoyan Song

{"title":"Grain-interior planar defects induced by heteroatom monolayer","authors":"Xingwei Liu , Haibin Wang , Hao Lu , Xuemei Liu , Zhi Zhao , Chao Hou , Lin Gu , Xiaoyan Song","doi":"10.1016/j.apmate.2023.100130","DOIUrl":"https://doi.org/10.1016/j.apmate.2023.100130","url":null,"abstract":"<div>A new type of grain-interior planar defect in a ceramic phase in TiC doped cemented tungsten carbides was discovered. It is unique in that the monolayers of metal atoms exist stably in ceramic grains. The planar defects were induced by the ordered heteroatoms distributing on certain crystal planes of the matrix, which are distinct from the known planar defects such as phase-, grain-, and twin-boundaries, stacking faults, and complexions. Detailed characterization on the atomic scale was performed for the composition, structure, and crystallography of the planar defects, and their energy state and stability were evaluated by modeling. It was found that the Ti monolayer assists nucleation of the new WC crystal along the normal direction to its basal plane. Due to the disturbance of the heteroatom layer, the deposition of W and C atoms deviates from the regular sites occupied in the perfect crystal lattice, resulting in variations of the W–C arrangement in the grain structure. Experiments confirmed that tailoring the distribution density of the planar defects could give the best comprehensive mechanical performance with simultaneously outstanding strength and fracture toughness in the materials containing the grain-interior planar defects. This study provides a new strategy to greatly enhance the mechanical properties of materials by introducing and tailoring planar defects in the grain interiors.</div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"2 4","pages":"Article 100130"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49734194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tailoring the electronic conductivity of high-loading cathode electrodes for practical sulfide-based all-solid-state batteries 为实用的硫化物基全固态电池定制高负载阴极电极的电子导电性

Advanced Powder Materials Pub Date : 2023-10-01 DOI: 10.1016/j.apmate.2023.100136

Huaqing Shen , Shenghao Jing , Siliang Liu , Yuting Huang , Fangbo He , Yang Liu , Zhi Zhuang , Zongliang Zhang , Fangyang Liu

{"title":"Tailoring the electronic conductivity of high-loading cathode electrodes for practical sulfide-based all-solid-state batteries","authors":"Huaqing Shen , Shenghao Jing , Siliang Liu , Yuting Huang , Fangbo He , Yang Liu , Zhi Zhuang , Zongliang Zhang , Fangyang Liu","doi":"10.1016/j.apmate.2023.100136","DOIUrl":"https://doi.org/10.1016/j.apmate.2023.100136","url":null,"abstract":"<div>Sulfide-based all-solid-state batteries (ASSBs) exhibit unparalleled application value due to the high ionic conductivity and good processability of sulfide solid electrolytes (SSEs). Carbon-based conductive agents (CAs) are often used in the construction of electronic conductive networks to achieve rapid electron transfer. However, CAs accelerate the formation of decomposition products of SSEs, and their effects on sulfide-based ASSBs are not fully understood. Herein, the effect of CAs (super P, vaper-grown carbon fibers, and carbon nanotubes) on the performance of sulfide-based ASSBs is investigated under different cathode active materials mass loading (8 and 25 mg·cm−2). The results show that under low mass loading, the side reaction between the CAs and the SSEs deteriorates the performance of the cell, while the charge transfer promotion caused by the addition of CAs is only manifested under high mass loading. Furthermore, the gradient design strategy (enrichment of CAs near the current collector side and depletion of CAs near the electrolyte side) is applied to maximize the benefits of CAs in electron transport and reduce the adverse effects of CAs. The charge carrier transport barrier inside the high mass loading electrode is significantly reduced through the regulation of electronic conductivity. Consequently, the optimized electrode achieves a high areal capacity of 5.6 mAh·cm−2 at high current density (1.25 mA·cm−2, 0.2 C) at 25 °C with a capacity retention of 87.85% after 100 cycles. This work provides a promising way for the design of high-mass loading electrodes with practical application value.</div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"2 4","pages":"Article 100136"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49712167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Highly conductive S-doped FeSe2-xSx microsphere with high tap density for practical sodium storage 高导电s掺杂FeSe2-xSx微球，用于实用的钠存储

Advanced Powder Materials Pub Date : 2023-10-01 DOI: 10.1016/j.apmate.2023.100120

Shuhao Xiao , Jinxia Jiang , Ying Zhu , Jing Zhang , Hanchao Li , Rui Wu , Xiaobin Niu , Jiaqian Qin , Jun Song Chen

{"title":"Highly conductive S-doped FeSe2-xSx microsphere with high tap density for practical sodium storage","authors":"Shuhao Xiao , Jinxia Jiang , Ying Zhu , Jing Zhang , Hanchao Li , Rui Wu , Xiaobin Niu , Jiaqian Qin , Jun Song Chen","doi":"10.1016/j.apmate.2023.100120","DOIUrl":"https://doi.org/10.1016/j.apmate.2023.100120","url":null,"abstract":"<div>Metal selenides have been explored as promising sodium storage materials owing to their high theoretical capacity. However, sluggish Na+ diffusion and low electronic conductivity of selenides still hinder their practical applications. Herein, FeSe2-xSx microspheres have been prepared via a self-doping solvothermal method using NH4Fe(SO4)2 as both the Fe and S source, followed by gas phase selenization. The density functional theory calculation results reveal that S doping not only improves the Na adsorption, but also lower the diffusion energy barrier of Na atoms at the S doping sites, at the same time enhance the electronic conductivity of FeSe2-xSx. The carbon-free nature of the FeSe2-xSx microspheres results in a low specific surface area and a high tap density, leading to an initial columbic efficiency of 85.6%. Compared with pure FeSe2, such FeSe2-xSx delivers a high reversible capacity of 373.6 mAh·g−1 at a high current density of 5 A·g−1 after 2000 cycles and an enhanced rate performance of 305.8 mAh·g−1 at even 50 A·g−1. Finally, the FeSe2-xSx//NVP pouch cells have been assembled, achieving high energy and volumetric energy densities of 118 Wh·kg−1 and 272 mWh·cm−3, respectively, confirming the potential of applications for the FeSe2-xSx microspheres.</div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"2 4","pages":"Article 100120"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49711895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Epitaxial growth of Pt–Pd bimetallic heterostructures for the oxygen reduction reaction 氧还原反应中Pt-Pd双金属异质结构的外延生长

Advanced Powder Materials Pub Date : 2023-10-01 DOI: 10.1016/j.apmate.2023.100131

Lian Ying Zhang , Tiantian Zeng , Linwei Zheng , Yanrui Wang , Weiyong Yuan , Mang Niu , Chun Xian Guo , Dapeng Cao , Chang Ming Li

{"title":"Epitaxial growth of Pt–Pd bimetallic heterostructures for the oxygen reduction reaction","authors":"Lian Ying Zhang , Tiantian Zeng , Linwei Zheng , Yanrui Wang , Weiyong Yuan , Mang Niu , Chun Xian Guo , Dapeng Cao , Chang Ming Li","doi":"10.1016/j.apmate.2023.100131","DOIUrl":"https://doi.org/10.1016/j.apmate.2023.100131","url":null,"abstract":"<div>It is of great importance to design highly active and stable electrocatalysts with low Pt loading to improve the sluggish kinetics of oxygen reduction reaction (ORR) for fuel cells. Herein, we report an epitaxial growth of a Pt–Pd bimetallic heterostructure with a Pt loading as low as 8.02 wt%. Both experimental studies and theoretical calculations confirm that the heterointerfaces play a major role in charge redistribution, which accelerates electron transfer from Pd to Pt, contributing to downshifting the d-band center of Pd and consequently greatly weakening the O adsorption energy for a critical optimal adsorption configuration of O∗ on the heterointerface. In particular, the adsorbed O∗, an intermediate in a bridge mode between adjacent Pt and Pd atoms, has a relative low adsorption energy, which easily forms H2O to escape for releasing the active sites toward ORR. The Pt–Pd heterostructured catalyst presents the highest mass activity of 6.06 A·mg−1Pt among all reported Pt–Pd alloyed or composited catalysts, which is 26.4 times of the sample Pt/C (0.23 A·mg−1Pt). Further, the fuel cell assembled by the electrocatalyst shows a current density of 1.23 A·cm−2 at 0.6 V and good stability for over 100 h.</div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"2 4","pages":"Article 100131"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49733635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Towards establishing uniform metrics for evaluating the safety of lithium metal batteries 建立统一的评价锂金属电池安全性的指标

Advanced Powder Materials Pub Date : 2023-10-01 DOI: 10.1016/j.apmate.2023.100139

Zequan Zhao , Xiyao Zhao , Yiming Zhou , Siliang Liu , Guozhao Fang , Shuquan Liang

引用次数: 4

Metal support interaction of defective-rich CuO and Au with enhanced CO low-temperature catalytic oxidation and moisture resistance 富缺陷CuO和Au的金属支撑相互作用与CO低温催化氧化和抗湿性增强

Advanced Powder Materials Pub Date : 2023-10-01 DOI: 10.1016/j.apmate.2023.100119

Yahang Wang , Lujun Zhu , Jingwei Li , Weibin Zhang , Xianjin Shi , Yu Huang , Mirabbos Hojamberdiev , Gangqiang Zhu

引用次数: 5

Anisotropic solution growth of 1D/2D N-rich carbon 一维/二维富氮碳的各向异性溶液生长

Advanced Powder Materials Pub Date : 2023-10-01 DOI: 10.1016/j.apmate.2023.100138

Zongge Li , Chenwei Wang , Anuj Kumar , Hongrui Jia , Yin Jia , Huifang Li , Lu Bai , Guoxin Zhang , Xiaoming Sun

{"title":"Anisotropic solution growth of 1D/2D N-rich carbon","authors":"Zongge Li , Chenwei Wang , Anuj Kumar , Hongrui Jia , Yin Jia , Huifang Li , Lu Bai , Guoxin Zhang , Xiaoming Sun","doi":"10.1016/j.apmate.2023.100138","DOIUrl":"https://doi.org/10.1016/j.apmate.2023.100138","url":null,"abstract":"<div>Despite the fact that low-dimensional carbons (LDCs, 1D/2D) materials are very interesting due to their intriguing electrical properties, we still attempt to enrich them by high N-content in order to enjoy their electro-applications. We here report a template-free synthesis of 1D/2D LDC with high N content (>40 at%) and tunable aspect ratios from molecular formamide (FA). The 1D/2D LDC is in polyaminoimidazole as confirmed by pair distribution function analysis, and 1D growth mode can be altered to 2D by simply adding a 2D-guiding molecule of melamine. Electrochemical properties of the LDC can be finely tuned by adjusting the solvothermal temperature and melamine dosage. It is revealed that the optimal 2D LDC delivers superior O2-to-H2O2 yield (687.2 mmol·g−1⋅h−1) and Faradic efficiency (87.5%). Considering the heavy N content and high adjustability of aspect ratio, the FA-derived LDCs potentially open new synthesis routes for structural carbon materials for broad electrochemical applications.</div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"2 4","pages":"Article 100138"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49733876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Understanding melt pool characteristics in laser powder bed fusion: An overview of single- and multi-track melt pools for process optimization 了解激光粉末床熔合中的熔池特征:用于工艺优化的单轨道和多轨道熔池概述

Advanced Powder Materials Pub Date : 2023-10-01 DOI: 10.1016/j.apmate.2023.100137

Jincheng Wang , Rui Zhu , Yujing Liu , Laichang Zhang

{"title":"Understanding melt pool characteristics in laser powder bed fusion: An overview of single- and multi-track melt pools for process optimization","authors":"Jincheng Wang , Rui Zhu , Yujing Liu , Laichang Zhang","doi":"10.1016/j.apmate.2023.100137","DOIUrl":"https://doi.org/10.1016/j.apmate.2023.100137","url":null,"abstract":"<div>Laser powder bed fusion (LPBF) has made significant progress in producing solid and porous metal parts with complex shapes and geometries. However, LPBF produced parts often have defects (e.g., porosity, residual stress, and incomplete melting) that hinder its large-scale industrial commercialization. The LPBF process involves complex heat transfer and fluid flow, and the melt pool is a critical component of the process. The melt pool stability is a critical factor in determining the microstructure, mechanical properties, and corrosion resistance of LPBF produced metal parts. Furthermore, optimizing process parameters for new materials and designed structures is challenging due to the complexity of the LPBF process. This requires numerous trial-and-error cycles to minimize defects and enhance properties. This review examines the behavior of the melt pool during the LPBF process, including its effects and formation mechanisms. This article summarizes the experimental results and simulations of melt pool and identifies various factors that influence its behavior, which facilitates a better understanding of the melt pool's behavior during LPBF. This review aims to highlight key aspects of the investigation of melt pool tracks and microstructural characterization, with the goal of enhancing a better understanding of the relationship between alloy powder-process-microstructure-properties in LPBF from both single- and multi-melt pool track perspectives. By identifying the challenges and opportunities in investigating single- and multi-melt pool tracks, this review could contribute to the advancement of LPBF processes, optimal process window, and quality optimization, which ultimately improves accuracy in process parameters and efficiency in qualifying alloy powders.</div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"2 4","pages":"Article 100137"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49712168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 21

Integrated multi-mode glass ceramic fiber for high-resolution temperature sensing 集成多模玻璃陶瓷纤维，用于高分辨率温度传感

Advanced Powder Materials Pub Date : 2023-10-01 DOI: 10.1016/j.apmate.2023.100132

Yongsheng Sun , Meihua Chen , Puxian Xiong , Yuzhen Wang , Shuhang Tian , Qingquan Jiang , Yao Xiao , Hongyou Zhou , Peishan Shao , Qiuqiang Zhan , Jiulin Gan , Qi Qian , Dongdan Chen , Zhongmin Yang

{"title":"Integrated multi-mode glass ceramic fiber for high-resolution temperature sensing","authors":"Yongsheng Sun , Meihua Chen , Puxian Xiong , Yuzhen Wang , Shuhang Tian , Qingquan Jiang , Yao Xiao , Hongyou Zhou , Peishan Shao , Qiuqiang Zhan , Jiulin Gan , Qi Qian , Dongdan Chen , Zhongmin Yang","doi":"10.1016/j.apmate.2023.100132","DOIUrl":"https://doi.org/10.1016/j.apmate.2023.100132","url":null,"abstract":"<div>Optical temperature sensors, which can accurately detect temperature in biological systems, are crucial to the development of healthcare monitoring. To challenge the state-of-art technology, it is necessary to design single luminescence center doped materials with multi-wavelength emission for optical temperature sensors with more modes and higher resolution. Here, an Er3+ single-doped KYF4 nanocrystals glass ceramic with an obvious thermochromic phenomenon is reported for the first time, which shows a different temperature-dependent green, red, and near-infrared luminescence behavior based on thermal disturbance model. In addition, Er3+ single-doped GC fiber was drawn and fabricated into multi-mode optical fiber temperature sensor, which has superior measured temperature resolution (＜0.5 °C), excellent detection limit (0.077 °C), and high correlation coefficient (R2) of 0.99997. More importantly, this sensor can monitor temperature in different scenarios with great environmental interference resistance and repeatability. These results indicate that our sensor shows great promise as a technology for environmental and healthcare monitoring, and it provides a route for the design of optical fiber temperature sensors with multi-mode and high resolution.</div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"2 4","pages":"Article 100132"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49733637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5