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Amorphous electrocatalysts for urea oxidation reaction

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Progress in Natural Science:Materials International 2024年第2期34卷 362-375页

作者： Fenghui Guo Dongle cheng Qian chen Hao Liu Zhiliang Wu Ning Han Bing-Jie Ni zhijie chen School of Materials Science and Technology China University of Geosciences Shenzhen Academy of Metrology and Quality Inspection Centre for Technology in Water and Wastewater School of Civil and Environmental Engineering University of Technology Sydney College of Safety and Environmental Engineering Shandong University of Science and Technology Institute of Yellow River Delta Earth Surface Processes and Ecological Integrity Shandong University of Science and Technology Discipline of Chemical Engineering Western Australian School of Mines: Minerals Energy and Chemical Engineering Curtin University Department of Materials Engineering School of Civil and Environmental Engineering The University of New South Wales

Electrochemical urea oxidation reaction(UOR) is a promising alternative to oxygen evolution reaction(OER) for realizing energy-saving hydrogen production. Developing efficient electrocatalysts for UOR becomes a central challenge. Recently, amorphous materials have been extensively used as UOR catalysts because of their numerous defective sites and flexible electronic properties. In this review, recent advancements in the development of amorphous UOR electrocatalysts are analyzed. The UOR mechanism is discussed, and the design of amorphous catalysts is then analyzed. The main catalyst design strategies are illustrated, including nanostructure control,heteroatom doping, composition regulation, and heterostructure construction. Also, electrocatalysts' structureperformance correlation is interpreted. Perspectives in this field are proposed for guiding future studies on the development of high-performance amorphous catalysts towards energy sustainability.

关键词： Catalyst design Component regulation Heteroatom doping Heterostructures Hydrogen energy

Anisotropic Plasmon Resonance Enables Spatially Controlled Photothermal and Photochemical Effects in Hot Carrier-Driven Catalysis

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Chinese Journal of Chemistry 2024年第16期42卷 1877-1885页

作者： Jiaqi Wang zhijie Zhu Kai Feng Shuang Liu Yuxuan Zhou Ifra Urooj Jiari He Zhiyi Wu Jiahui Shen Xu Hu zhijie chen Xudong Dong Manzar Sohail Yanyun Ma Jinxing chen Chaoran Li Xingda An Le He Institute of Functional Nano&Soft Materials(FUNSOM) Soochow UniversitySuzhouJiangsu 215123China Jiangsu Key Laboratory ofAdvanced Negative Carbon Technologies Soochow UniversitySuzhouJiangsu 215123China Jiangsu Key Laboratory for Carbon-Based Functional Materials&Devices Soochow UniversitySuzhouJiangsu 215123China Department of Chemistry School of Natural SciencesNational University of Sciences and TechnologyIslamabad 44000Pakistan

Localized surface plasmon resonance has been demonstrated to provide effective photophysical enhancement mechanisms in plasmonic ***,it remains highly challenging for distinct mechanisms to function in synergy for a collective gain in catalysis due to the lack of spatiotemporal control of their ***,the anisotropic plasmon resonance nature of Au nanorods was exploited to achieve distinct functionality towards synergistic *** and photochemical effects were enabled by the longitudinal and transverse plasmon resonance modes,respectively,and were enhanced by partial coating of silica nanoshells and epitaxial growth of a reactor *** excitation leads to a synergistic gain in photothermal-mediated hot carrier-driven hydrogen evolution *** approach provides important design principles for plasmonic photocatalysts in achieving spatiotemporal modulation of distinct photophysical enhancement *** also effectively broadens the sunlight response range and increases the efficacy of distinct plasmonic enhancement pathways towards solar energy harvesting and conversion.

关键词： Plasmon resonance Photothermal effect Photochemistry Photocatalysis Metal nanoparticles Charge carrier injection Heterogeneous catalysis Photoelectrochemistry

A study on basic research priorities and development suggestions for the digital transformation of air traffic management

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Aerospace Traffic and Safety 2024年第1期1卷 1-9页

作者： zhijie chen Yongwen Zhu Fan Pu Wen Tian State Key Laboratory of Air Traffic Management System Nanjing 211106China College of Civil Aviation Nanjing University of Aeronautics and AstronauticsNanjing 211106China

Air traffic is exhibiting the characteristics of high density,high volume,and unmanned *** ensure smooth,efficient,safe,and reliable operations,it is necessary to promote the digital transformation of Air Traffic Management(ATM)with digitalization,autonomy,and collaboration as its typical *** article,based on the background of current and foreseeable future ATM needs,deeply analyzes the challenges and opportunities faced by traditional *** explores and proposes to further investigate the commonalities,characteristics,and evolution of air traffic,the interaction mechanism of"human-machine-environment"in air traffic,the integrated design of airborne avionics and ATM systems,the comprehensive integration of ATM based on vulnerability analysis,airspace classification management,air traffic flow management,key technologies of"perception-collision avoidance",wake vortex monitoring and interval reduction,unmanned aerial vehicle management,and the expansion of ATM capabilities in the"high frontier".The research suggests strengthening top-level planning,building an open,mutually beneficial,and win-win digital ATM ecological framework based on multi-party collaboration,coordinating the research and application of new digital ATM technologies,accelerating the occupation of the new track of low-altitude economy,and enhancing ATM capabilities driven by the digital transformation of ATM.

关键词： Air Traffic Management(ATM)system Digital transformation Airspace resource management Digital ATM service

Electrocatalysis-driven sustainable plastic waste upcycling

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Electron 2024年第2期2卷 53-84页

作者： Gaihong Wang zhijie chen Wei Wei Bing-Jie Ni Centre for Technology in Water and Wastewater School of Civil and Environmental EngineeringUniversity of Technology SydneySydneyNew South WalesAustralia UNSW Water Research Centre School of Civil and Environmental EngineeringThe University of New South WalesSydneyNew South WalesAustralia

With large quantities and natural resistance to degradation,plastic waste raises growing environmental concerns in the *** achieve the upcycling of plastic waste into value-added products,the electrocatalytic-driven process is emerging as an attractive option due to the mild opera-tionconditions,highreactionselectivity,***,this review provides a comprehensive overview of the upgrading of plastic waste via ***,key electrooxidation processes including the target products,intermediates and reaction pathways in the plastic electro-reforming process are ***,advanced electrochemical systems,including the integration of anodic plastic monomer oxidation and value-added cathodic reduction and photo-involved electrolysis processes,are *** design strategies of electrocatalysts with enhanced activity are highlighted and catalytic mechanisms in the electrocatalytic oxidation of plastic waste are *** promote the electrochemistry-driven sustainable upcycling of plastic waste,challenges and opportunities are further put forward.

关键词： catalyst design electrocatalytic reforming electrochemical oxidation hydrogen energy plastic waste

Reconstructed anti-corrosive and active surface on hierarchically porous carbonized wood for efﬁcient overall seawater electrolysis

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Science Bulletin 2024年第15期69卷 2337-2341页

作者： zhijie chen Wenfei Wei Xiaomin Xu Xiaosong Gu Changzhu Huang Wei Wei Zongping Shao Bing-Jie Ni Hong chen Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control SUSTech Energy Institute for Carbon NeutralitySchool of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China UNSW Water Research Centre School of Civil and Environmental EngineeringThe University of New South WalesSydney 2052Australia Key Laboratory of Comprehensive and Highly Efﬁcient Utilization of Salt Lake Resources Qinghai Institute of Salt LakesChinese Academy of SciencesXining 810008China WA School of Mines:Minerals Energy and Chemical EngineeringCurtin UniversityPerth 6845Australia Eastern Institute for Advanced Study Eastern Institute of TechnologyNingbo 315200China Centre for Technology in Water and Wastewater School of Civil and Environmental EngineeringUniversity of Technology SydneySydney 2007Australia

Seawater electrolysis for sustainable hydrogen fuel production emerges as an auspicious practice to decarbonize the global energy sector [1]. However, direct seawater electrolysis is severely challenged by the corrosion of anodes by chloride ions, the unwanted chloride oxidation reaction (Cl OR), and the low activity and high cost of catalysts [2].

关键词： corrosion seawater carbon

掺锶介孔生物活性玻璃负载双膦酸盐改善去卵巢小鼠骨流失

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中国组织工程研究 2024年第17期28卷 2653-2658页

作者：周志陈致介霍市城李展春上海交通大学医学院附属仁济医院骨科上海市200127 中国人民解放军海军军医大学附属长征医院脊柱微创科上海市200003

背景:双膦酸盐通过抑制破骨细胞活性延缓骨质疏松进展,然而双膦酸盐严重的并发症如下颌骨坏死、非典型性股骨骨折等严重限制了其临床应用,需要寻求有效的替代疗法改善现有的临床困局。目的:制备掺锶介孔生物活性玻璃负载双膦酸盐(BPS@Sr... 详细信息

背景:双膦酸盐通过抑制破骨细胞活性延缓骨质疏松进展,然而双膦酸盐严重的并发症如下颌骨坏死、非典型性股骨骨折等严重限制了其临床应用,需要寻求有效的替代疗法改善现有的临床困局。目的:制备掺锶介孔生物活性玻璃负载双膦酸盐(BPS@Sr-MBG),分析其抗骨质疏松活性。方法:采用溶胶-凝胶法制备掺锶介孔生物活性玻璃,然后加入阿仑膦酸盐饱和溶液中制备BPS@Sr-MBG。①细胞实验:将小鼠骨髓巨噬细胞接种于96孔板内,加入含巨噬细胞集落刺激因子、核因子κB受体活化子配体的ɑ-MEM完全培养基进行破骨细胞诱导分化实验,同时分3组培养,空白组加入PBS,对照组加入双膦酸盐,实验组加入BPS@Sr-MBG。培养5 d后,F-肌动蛋白环染色观察破骨细胞分化情况。②动物实验:将24只雌性C57/BL小鼠随机分为4组,每组6只。除假手术组外,切除去卵巢组、BPS组、BPS@Sr-MBG组小鼠双侧卵巢构建骨质疏松模型,造模1周后,BPS组、BPS@Sr-MBG组小鼠分别腹腔注射双膦酸盐溶液、BPS@Sr-MBG溶液,假手术组、去卵巢组小鼠腹腔注射PBS,1次/周。连续注射8周后,取小鼠股骨进行Micro-CT扫描及苏木精-伊红染色分析。结果与结论:①细胞实验:F-肌动蛋白环染色显示,与空白组比较,对照组破骨细胞面积占比与破骨细胞数量均减少(P<0.01);与对照组比较,实验组破骨细胞面积占比与破骨细胞数量均减少(P<0.01)。②动物实验:股骨Micro-CT扫描结果显示,与假手术组比较,去卵巢组小鼠骨密度、骨小梁骨体积分数、骨小梁厚度、骨小梁数目均降低(P<0.05,P<0.01),骨小梁间距、结构模型指数升高(P<0.01);与去卵巢组比较,BPS组、BPS@Sr-MBG组小鼠上述骨参数均得到明显改善(P<0.01),其中以BPS@Sr-MBG组各指标改善更明显。股骨苏木精-伊红染色进一步证实了Micro-CT扫描结果。③结果表明:BPS@Sr-MBG可通过抗破骨效应与促骨形成发挥抗骨质疏松活性。

关键词：骨质疏松生物活性玻璃锶离子双膦酸盐骨流失骨髓巨噬细胞

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创建行动导向下美丽乡村联创联建的规划设计方法探索

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中国园林 2024年第4期40卷 50-56页

作者：陈晨刘冰洁张轶佳刘竹阳陈智杰同济大学建筑与城市规划学院城市规划系同济大学上海市城市更新及其空间优化技术重点实验室上海200092 上海同济城市规划设计研究院有限公司同创智城工作室上海200092

伴随着浙江省乡村发展愿景从“千万工程”到“美丽乡村”再到共同富裕的纵深推进,以单个行政村为单元的美丽乡村创建模式已经难以适应新的发展诉求。基于自然资源禀赋或基础设施地理空间连续性的美丽乡村联创联建工作,是破解各行政村独... 详细信息

伴随着浙江省乡村发展愿景从“千万工程”到“美丽乡村”再到共同富裕的纵深推进,以单个行政村为单元的美丽乡村创建模式已经难以适应新的发展诉求。基于自然资源禀赋或基础设施地理空间连续性的美丽乡村联创联建工作,是破解各行政村独立发展的多重瓶颈的创新性尝试。针对具有明确的目标、资金、时间约束的美丽乡村创建行动,基于“产业-空间协同发展”的总体思路,试图探讨一种面向美丽乡村联创联建的规划设计方法,即“二阶三心法”。这一方法从乡村地区的存量资源切入,旨在系统性、创造性地回应创建行动目标,开展面向产业-空间复合型目标的空间规划干预:一是基于“土地矛盾最小化原则”进行空间节点设计,二是基于“空间投入-融合效益最大化原则”形成特色主线,三是基于“优先塑造-示范带动原则”打造示范样板。进一步的,结合湖州市道场乡菰城片区规划设计工作,探讨了该方法在产业策划和空间设计层面落地应用的关键问题和解决策略,为中国先发地区美丽乡村联创联建的规划设计工作提供经验借鉴。

关键词：风景园林创建行动美丽乡村联创联建存量资源村庄设计

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数字低空空域栅格化的表征度量与最优标定

数据采集与处理 2024年第1期39卷 31-43页

作者：谢华尹嘉男朱永文陈志杰南京航空航天大学通用航空与飞行学院南京211106 南京航空航天大学民航学院南京211106 空中交通管理系统全国重点实验室南京211106 国家空域技术重点实验室北京100085

低空飞行空间范围小、目标速度慢、环境要素杂,传统的经纬度表征方式无法满足智联环境下的低空精细管理要求,为此本文研究了数字低空空域栅格化的表征度量与最优标定问题。首先,从“点-线-面”视角构建了多维度低空空域结构要素量化表... 详细信息

低空飞行空间范围小、目标速度慢、环境要素杂,传统的经纬度表征方式无法满足智联环境下的低空精细管理要求,为此本文研究了数字低空空域栅格化的表征度量与最优标定问题。首先,从“点-线-面”视角构建了多维度低空空域结构要素量化表征规则,提出了低空空域多层级栅格量化表征方法;然后,通过判定不同空域栅格的“点-线-面”位置关系,提出了基于栅格交集矩阵的低空空域拓扑关系度量方法;最后,综合考虑低空无人机碰撞指数、低空栅格利用指数等优化目标,以及节点与栅格匹配约束、空间位置约束、无人机与无人机/障碍物安全约束等限制条件,建立了面向多维性能的低空空域栅格粒度最优标定模型。针对城市低空典型飞行任务场景对所提方法的有效性及优化效果进行了验证分析。实验结果表明,针对任意设定的低空空域和无人机飞行任务,在可接受的无人机碰撞指数和栅格利用指数下,所提方法可对数字低空栅格粒度进行最优配置,从根源上有效确保低空飞行活动的安全和高效。研究成果对于支撑数字低空空域精细化管理和异质飞行器融合运行具有一定的理论价值和应用意义。

关键词：低空空域无人机空域栅格化栅格表征栅格标定

基于神经辐射场遮挡优化的单视图三维重建方法

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液晶与显示 2024年第10期39卷 1402-1410页

作者：陈志杰邓慧萍向森吴谨武汉科技大学信息科学与工程学院湖北武汉430081

单视图的三维重建是通过输入单个视角的二维图像来恢复物体的三维几何形状或场景。由于单个视图的信息有限,遮挡会造成图像特征之间的模糊,从而无法恢复准确的物体外观细节。本文提出了一种基于神经辐射场(NeRF)的框架,充分利用图像的... 详细信息

单视图的三维重建是通过输入单个视角的二维图像来恢复物体的三维几何形状或场景。由于单个视图的信息有限,遮挡会造成图像特征之间的模糊,从而无法恢复准确的物体外观细节。本文提出了一种基于神经辐射场(NeRF)的框架,充分利用图像的全局信息和局部上下文信息解决遮挡问题。首先,利用Vision Transformer具有捕获数据远程相关性的特性来学习图像的全局特征,并结合SE通道注意力机制模块来防止多层特征信息丢失和信息冗余;其次,利用卷积神经网络提取像素对齐的局部图像特征,结合空洞金字塔池化结构的空洞卷积以增大感受野,挖掘多尺度上下文信息,为恢复遮挡区域的细节提供更多的信息;最后,设计了一个基于Transformer的密度特征聚合模块,以减少遮挡引起的密度预测不准确。在ShapeNet-NMR数据集上的实验表明,该方法能合成具有更多细节的新视图,并且在应用于看不见的物体时表现出良好的泛化能力。

关键词：神经辐射场遮挡空洞卷积 Transformer