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Erratum to:Phase-pure two-dimensional Fe_(x)GeTe_(2)magnets with near-roomtemperature T_(C)

Nano Research 2024年第6期17卷 5757-5757页

作者： Govindan Kutty Rajendran Nair Zhaowei Zhang fuchen hou Ali Abdelaziem Xiaodong Xu Steve Wu Qing Yang Nan Zhang Weiqi Li Chao Zhu Yao Wu Heng Weiling Lixing Kang Teddy Salim Jiadong Zhou Lin Ke Junhao Lin Xingji Li Weibo Gao Zheng Liu School of Material Science and Engineering Nanyang Technological University50 Nanyang Ave639798Singapore Division of Physics and Applied Physics School of Physical and Mathematical SciencesNanyang Technological University21 Nanyang Link637371Singapore Department of Physics Southern University of Science and TechnologyShenzhen 518055China Institute of Materials Research and Engineering Agency for Science Technology and Research(A*STAR)2 Fusionopolis Way138634Singapore School of Material Science and Engineering School of PhysicsHarbin Institute of TechnologyHarbin 150001China Shenzhen Key Laboratory of for Advanced Quantum Functional Materials and Devices Southern University of Science and TechnologyShenzhen 518055China National Institute of Laser Enhanced Sciences(NILES) Cairo UniversityGiza 12613Egypt CINTRA CNRS/NTU/THALES UMI 3288Research Techno Plaza637553Singapore School of Electrical and Electronic Engineering Nanyang Technological University50 Nanyang Ave639798Singapore

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Microstructure and magnetic properties of(SmCo+FeCo)/NdFeB multicomponent nanocomposite magnets fabricated by HPTC with change in heating temperature and composition

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Journal of Rare Earths 2020年第7期38卷 742-748,I0003页

作者： Guangwei Huang Li Lou Wenpeng Song Ming Li fuchen hou Xiaohong Li State Key Laboratory of Metastable Materials Science and Technology Yanshan UniversityQinhuangdao 066004China College of Materials Science and Engineering Hebei University of EngineeringHandan 056038China

We report the fabrication of bulk anisotropic(SmCo+FeCo)/NdFeB multicomponent nanocomposite magnets using high-pressure thermal compression(HPTC).The correlations among microstructure,magnetic properties,heating temperature and composition of the HPTC nanocomposite magnets were *** HPTC magnet made under variable temperatures(VT),with 19 wt% of FeCo phase,exhibits a maximum energy product of 32 MGOe,which is much higher than that(14 MGOe) for the HPTC magnet made under a constant temperature(CT).When the FeCo content increases to^23 wt%,the HPTC magnet made under VT still remains a high energy product of about 25 *** increasing NdFeB content,the(SmCo+FeCo)/NdFeB multicomponent nanocomposite magnets exhibit an enhanced magnetic anisotropy and *** work is beneficial to fabricating high-performance and low-cost permanent magnets for practical applications.

关键词： Nanocomposite magnets Bulk nanostructures Anisotropy Texture Rare earths

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Effect of carbon material and surfactant on ink property and resulting surface cracks of fuel-cell microporous layers

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Chinese Journal of Chemical Engineering 2024年第5期69卷 1-12页

作者： Zhekun Chen Weitong Pan Longfei Tang Xueli Chen fuchen Wang Engineering Research Center of Resource Utilization of Carbon-containing Waste with Carbon Neutrality Ministry of EducationEast China University of Science and TechnologyShanghai 200237China Key Laboratory of Pressure Systems and Safety Ministry of EducationEast China University of Science and TechnologyShanghai 200237China

Ensuring the consistency of electrode structure in proton-exchange-membrane fuel cells is highly desired yet challenging because of wide-existing and unguided cracks in the microporous layer(MPL). The first thing is to evaluate the homogeneity of MPL with cracks quantitatively. This paper proposes the homogeneity index of a full-scale MPL with an area of 50 cm~2, which is yet to be reported in the literature to our knowledge. Besides, the effects of the carbon material and surfactant on the ink and resulting MPL structure have been studied. The ink with a high network development degree produces an MPL with low crack density, but the ink with high PDI produces an MPL with low crack homogeneity. The polarity of the surfactant and the non-polarity of polytetrafluoroethylene(PTFE) are not mutually soluble,resulting in the heterogeneous PTFE distribution. The findings of this study provide guidelines for MPL fabrication.

关键词： Proton-exchange-membrane fuel cell Microporous layer Crack density Crack homogeneity Polytetrafluoroethylene distribution Surfactant

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Phase-pure two-dimensional Fe_(X)GeTe_(2) magnets with near-room-temperature Tc

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Nano Research 2022年第1期15卷 457-464页

作者： Govindan Kutty Rajendran Nair Zhaowei Zhang fuchen hou§ Ali Abdelaziem Xiaodong Xu Steve Wu Qing Yang Nan Zhang Weiqi Li Chao Zhu Yao Wu Heng Weiling Lixing Kang Teddy Salim Jiadong Zhou Lin Ke Junhao Lin Xingji Li Weibo Gao Zheng Liu School of Material Science and Engineering 50 Nanyang Ave639798Singapore Division of Physics and Applied Physics School of Physical and Mathematical SciencesNanyang Technological University21 Nanyang Link637371 Singapore Department of Physics Southern University of Science and TechnologyShenzhen 518055China Institute of Materials Research and Engineering Agency for Science Technology and Research(A*STAR)2 Fusionopolis WaySingapore 138634Singapore School of Material Science and Engineering School of PhysicsHarbin Institute of TechnologyHarbin 150001China Shenzhen Key Laboratory of for Advanced Quantum Functional Materials and Devices Southern University of Science and TechnologyShenzhen 518055China National Institute of Laser Enhanced Sciences(NILES) Cairo UniversityGiza 12613Egypt CINTRA CNRS/NTU/THALES UMI3288Research Techno Plaza637553Singapore School of Electrical and Electronic Engineering Nanyang Technological University50 Nanyang Ave639798Singapore

Two-dimensional(2D)ferromagnets with out-of-plane(OOP)magnetic anisotropy are potential candidates for realizing the next-generation memory devices with ultra-low power consumption and high storage ***,a scalable approach to synthesize 2D magnets with OOP anisotropy directly on the complimentary metal-oxide semiconductor(CMOS)compatible substrates has not yet been mainly explored,which hinders the practical application of 2D *** work demonstrates a cascaded space confined chemical vapor deposition(CS-CVD)technique to synthesize 2D FexGeTe_(2) *** weight fraction of iron(Fe)in the precursor controls the phase purity of the as-grown *** a result,high-quality Fe_(3)GeTe_(2) and Fe_(5)GeTe_(2) flakes have been grown selectively using the CS-CVD *** temperature(Tc)of the as-grown FexGeTe2 can be up to-280 K,nearly room *** thickness and temperature-dependent magnetic studies on the Fe_(5)GeTe_(2) reveal a 2D Ising to 3D XY ***,Terahertz spectroscopy experiments on Fe_(5)GeTe_(2) display the highest conductivity among other FexGeTe_(2) 2D *** results of this work indicate a scalable pathway for the direct growth and integration of 2D ternary magnets on CMOS-based substrates to develop spintronic memory devices.

关键词： cascaded space confined chemical vapor deposition(CVD) van der Waals(vdW) ferromagnetism out of plane anisotropy iron germanium telluride terahertz

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Investigation of oxy-fuel combustion for methane and acid gas in a diffusion flame

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Chinese Journal of Chemical Engineering 2024年第1期65卷 106-116页

作者： Songling Guo Xun Tao Fan Zhou Mengyan Yu Yufan Wu Yunfei Gao Lu Ding fuchen Wang Institute of Clean Coal Technology East China University of Science and TechnologyShanghai 200237China

Co-combustion of methane(CH4)and acid gas(AG)is required to sustain the temperature in Claus reaction *** this study,oxy-fuel combustion of methane and acid gas has been experimentally studied in a diffusion *** equivalence ratios(ER=1.0,1.5,2.0)and CH_(4)-addition ratios(CH_(4)/AG=0.3,0.5,0.7)were examined and the flame was interpreted by analyzing the distributions of the temperature and species concentration along central ***_(4)-AG diffusion flame could be classified into three sections namely initial reaction,oxidation and complex reaction *** oxidation of CH_(4)and H_(2)S was noted in the first section wherein H_(2)S was preferred and both were mainly proceeding decomposition and partial ***_(2)was formed at oxidation section together with obvious presence of H2 and ***,H2 and CO were inclined to be sustained under fuel rich condition in the complex reaction *** ER and increasing CH4/AG contributed to higher temperature,H_(2)S and CH_(4)oxidation and CO_(2)*** a growing trend for CH_(4)and AG to convert into H_(2),CO and SO_(2)could be *** this factor enhanced the generation of CS2 and COS in the flame inner core by interactions of CH4 and CO_(2)with sulfur *** was formed through the interactions of CO and CO_(2)with sulfur *** CS_(2)production directly relied on reaction of CH_(4)with sulfur *** concentration of COS was greater than CS_(2)since CS_(2)was probably inhibited due to the presence of H_(2).COS and CS_(2)could be consumed by further oxidation or other complex reactions.

关键词： Acid gas Methane Oxy-fuel combustion Oxidation Chemical analysis Carbon sulfides

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基于密度泛函理论的HCN与H_(2)/H_(2)O气相反应机理研究

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燃料化学学报（中英文） 2024年第6期52卷 850-863页

作者：孙明哲许建良侯秋实代正华王辅臣华东理工大学资源与环境工程学院上海市煤气化工程技术研究中心上海200237 上海寰球工程有限公司上海200032 新疆大学化工学院新疆乌鲁木齐830046

含HCN的废弃物在气化炉内的高温转化是其绿色处理的方法之一,其中,HCN与H_(2)/H_(2)O的反应是其在气化炉内的主要转化过程。本工作基于密度泛函理论,采用Gaussian及其配套软件对HCN与H_(2)/H_(2)O的反应机理进行了研究。通过分子成键、... 详细信息

含HCN的废弃物在气化炉内的高温转化是其绿色处理的方法之一,其中,HCN与H_(2)/H_(2)O的反应是其在气化炉内的主要转化过程。本工作基于密度泛函理论,采用Gaussian及其配套软件对HCN与H_(2)/H_(2)O的反应机理进行了研究。通过分子成键、断键角度提出HCN与H_(2)/H_(2)O的各两种反应路径,结合能垒和热力学分析确定了相对最优路径,并计算了相对最优反应路径的速率常数。结果表明,HCN与H_(2)反应相对最优路径为:三个H_(2)分子在C=N上分三步进行加成得到产物CH4+NH_(3);HCN与H_(2)O反应相对最优路径为:H_(2)O分子进攻C原子,O原子和C原子的H先后转移至N原子得到产物CO+NH_(3)。两条相对最优路径在1473 K以上有明显反应速率,分别为9.57×10^(-4)和1.71 mol/(L·s)。研究结果为高温下HCN与H_(2)/H_(2)O反应的工艺和设备开发提供了理论数据支撑。

关键词： HCN 气相反应密度泛函理论热力学动力学

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Experimental and numerical modeling of carbonized biomass gasification: A critical review

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Green Carbon 2024年第2期2卷 176-196页

作者： Kannie Winston Kuttin Haowen Yu Mingming Yang Lu Ding Xueli Chen Guangsuo Yu fuchen Wang Institute of Clean Coal Technology East China University of Science and TechnologyShanghai 200237China Engineering Research Center of Resource Utilization of Carbon-containing Waste with Carbon Neutrality Ministry of EducationChina Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering Ningxia UniversityYinchuanNingxia 750021China

Gasification is one of the most significant and well-researched pathways to produce energy from biomass among the different options *** is a conversion through thermo-chemical process that takes place within a gasifier,with interconnected factors that have an impact on how well the gasifier *** of carbonized biomass,which has a variety of effects on both the gasification process and the final product,is a significant method of producing energy from raw biomass that contains a lot of moisture or has non-homogeneous *** carbonized biomass has the potential to eliminate or significantly reduce tar formation,which is the most difficult aspect of biomass gasifier design and operation,it has not received the attention it merits even though gasification of biomass is a well-known conversion process with extensive research and development spanning all sectors of the *** review gathers and analyzes the growing number of experimental and numerical modeling approaches in gasification of carbonized biomass based on exact conditions such as type of modeling considerations,feedstock,gasifier,and assessed *** study also provides an overview of various models,such as equilibrium and kinetic rate models and numerical simulations of carbonized biomass gasification schemes based on computational fluid dynamics and Aspen Plus,while comparing the modeling approaches and results for each type of models that are described in the ***,this review encompasses a broad variety of technologies,from laboratory reactors to industrial ***,this review offers a brief overview of the modeling decisions that must be taken at the beginning of a modeling research.

关键词： Carbonized biomass Gasification Thermodynamic model Kinetic model Computational fluid dynamics model

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环境规制、数字化信息渠道与农户亲环境行为

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生态经济 2024年第4期40卷 129-135页

作者：高鹏白福臣郑沃林广东海洋大学管理学院广东湛江524088 广东金融学院信用管理学院广东广州510520

促进农户向绿色生产与生活方式转变对推进中国农业发展全面绿色转型意义重大,这决定了剖析农户亲环境行为逻辑的重要性。论文基于构建的“环境规制—数字化信息渠道—农户亲环境行为”分析框架,运用中国土地经济调查中的农户数据和二元P... 详细信息

促进农户向绿色生产与生活方式转变对推进中国农业发展全面绿色转型意义重大,这决定了剖析农户亲环境行为逻辑的重要性。论文基于构建的“环境规制—数字化信息渠道—农户亲环境行为”分析框架,运用中国土地经济调查中的农户数据和二元Probit模型进行了实证研究。结果表明:约束型与激励型环境规制正向引导农户亲环境行为,这一结论经过稳健性检验后仍成立;而且,约束型与激励型环境规制在不同情境下对引导农户亲环境行为存在明显异质性;进一步分析发现,数字化拓宽农户的环境规制信息获取渠道,增强农户的信息获取能力,促进农户环境规则感知,进而促使农户采取亲环境行为。基于上述结论,本文认为环境规制对激励农户亲环境行为是重要的,但数字化赋能环境规制的内生逻辑则是关键一环。

关键词：农户亲环境行为环境规制数字化信息渠道

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一个复杂混沌系统的分析与同步控制

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系统科学与数学 2024年第5期44卷 1311-1323页

作者：陈松张付臣肖敏重庆工商大学数学与统计学院统计智能计算与监测重庆市重点实验室重庆400067 南京邮电大学自动化学院人工智能学院南京210023

为了更好研究混沌现象的本质和利用混沌,根据混沌系统的李雅普诺夫稳定性理论和分岔理论研究了一类三维广义Rabinovich系统的混沌动力学特性,包括耗散性、平衡点和局部渐近稳定性、李雅普诺夫指数、李雅普诺夫维数、分岔图、全局吸引域... 详细信息

为了更好研究混沌现象的本质和利用混沌,根据混沌系统的李雅普诺夫稳定性理论和分岔理论研究了一类三维广义Rabinovich系统的混沌动力学特性,包括耗散性、平衡点和局部渐近稳定性、李雅普诺夫指数、李雅普诺夫维数、分岔图、全局吸引域等.依据混沌系统全局指数吸引集的结果和Dini导数,设计合适的控制器实现了两个相同混沌系统的全局指数同步.为了使所设计的控制器在实际应用中更容易实现且使同步方案有高效的同步速率,文章设计了线性反馈控制器使两个混沌系统达到全局指数同步.文章的创新点在于,首先得到了该混沌系统每个变量最终界的数学表达式,然后利用混沌系统的有界性得到了混沌系统控制器的精确数学表达式.最后,文章对同步过程进行数值模拟,仿真结果证实了理论的可行性.

关键词：混沌系统 Dini 导数稳定性全局吸引域全局指数同步

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1例脊髓延髓肌萎缩症运动神经元分化及分子病理分析

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山东大学学报（医学版） 2024年第4期62卷 92-100页

作者：刘文竹刘付臣山东大学齐鲁医院神经内科山东济南250012

目的运用脊髓延髓肌萎缩症(spinal and bulbar muscular atrophy,SBMA)患者诱导多潜能干细胞(induced pluripotent stem cells,iPSCs)来源的运动神经元探究本病的分子病理表型。方法提取1例SBMA患者及1例健康对照者的皮肤成纤维细胞并... 详细信息

目的运用脊髓延髓肌萎缩症(spinal and bulbar muscular atrophy,SBMA)患者诱导多潜能干细胞(induced pluripotent stem cells,iPSCs)来源的运动神经元探究本病的分子病理表型。方法提取1例SBMA患者及1例健康对照者的皮肤成纤维细胞并重编程为iPSCs;将iPSCs诱导为运动神经前体细胞(motor neurons progenitor,MNP)并分化为成熟的运动神经元(mature motor neurons,mMN);免疫荧光染色研究细胞的增殖与凋亡,检测细胞核内包涵体的形成。结果患者,35岁,男性,主要表现为四肢近端无力、手抖以及性功能减退。骨骼肌活检显示神经源性损害病理改变。外周血毛细管电泳检测显示雄激素受体(androgen receptor,AR)基因第1外显子CAG重复次数为44次。iPSCs均表达干性标记物,细胞核型正常,并能随机分化为三胚层细胞类型。患者iPSCs及MNP未见细胞核内包涵体,但mMN中的核内包涵体较为典型。与健康对照相比,患者MNP增殖比例下降,凋亡比例增加。结论SBMA患者iPSCs携带致病变异,其分化的mMN含有典型的细胞核内包涵体,精准地模拟本病的分子病理特征,为后续机制研究和药物靶标发现提供理想的模型。

关键词：脊髓延髓肌萎缩症肯尼迪病雄激素受体基因诱导多潜能干细胞运动神经元

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