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direct Photolithography of WO_x Nanoparticles for High-resolution Non-Emissive displays

NANO-MICrO LETTErS 2025年第1期17卷 1-13页

作者： Gu, Chang Yang, Guojian Wang, Wenxuan Shi, Aiyan Fang, Wenjuan Qian, Lei Hu, Xiaofei Zhang, Ting Xiang, Chaoyu Zhang, Yu-Mo Chinese Acad Sci Ningbo Inst Mat Technol & Engn Lab Optoelect Informat Technol & Devices Ningbo 315201 Peoples R China Qianwan Inst CNITECH Hangzhou Bay Lab Adv Nanooptoelectron Mat & Device Ningbo 315336 Peoples R China zhejiang Univ Innovat Ctr Yangtze River Delta Smart Mat Architecture Res Lab Jiaxing 314100 Peoples R China Univ Sci & Technol China Hefei 230026 Peoples R China Jilin Univ Coll Chem State Key Lab Supramol Struct & Mat Changchun 130012 Peoples R China

High-resolution non-emissive displays based on electrochromic tungsten oxides (WOx) are crucial for future near-eye virtual/augmented reality interactions, given their impressive attributes such as high environmental stability, ideal outdoor readability, and low energy consumption. However, the limited intrinsic structure of inorganic materials has presented a significant challenge in achieving precise patterning/pixelation at the micron scale. Here, we successfully developed the direct photolithography for WOx nanoparticles based on in situ photo-induced ligand exchange. This strategy enabled us to achieve ultra-high resolution efficiently (line width m, the best resolution for reported inorganic electrochromic materials). Additionally, the resulting device exhibited impressive electrochromic performance, such as fast response (ration efficiency (119.5 cm(2) C-1), good optical modulation (55.9%), and durability (> 3600 cycles), as well as promising applications in electronic logos, pixelated displays, flexible electronics, etc. The success and advancements presented here are expected to inspire and accelerate research and development (r&d) in high-resolution non-emissive displays and other ultra-fine micro-electronics.

关键词： Electrochromic direct photolithography WOx nanoparticles In situ photo-induced ligand exchange High-resolution displays

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Grading of products utilizing bamboo as a substitute for plastic based on environmental effects

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Science China Earth Sciences 2024年第9期67卷 2989-2998页

作者： Meng ZHANG Guomo ZHOU Lei GU Wenshuo WANG College of Forestry Beijing Forestry UniversityBeijing 100083China Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of zhejiang Province Zhejiang A&F UniversityHangzhou 311300China

To achieve sustainable development goals,mitigate plastic pollution,and promote eco-friendly products,it is crucial to identify key products in the bamboo as a substitute for plastic(BSP)industry and assess their environmental *** study proposed a novel evaluation method for the environmental effect of bamboo as a substitute for plastic(EBSP).It focused on the contributions of BSP products in reducing plastic pollution and greenhouse gas *** established a set of EBSP evaluation indicators and developed a grading model,evaluating 30 typical BSP products across six *** results showed that the EBSP evaluation model,based on the emission reduction rate of substitution(ErrS),substitution rate of material(SrM),and product renewal ratio(Prr),can accurately quantify the environmental benefits of BSP *** model has successfully facilitated precise quantification of the EBSP and established a rational and effective grading system for BSP *** results also demonstrated that the average EBSP ranking across the six categories of BSP products,in descending order,is:disposable bamboo products,bamboo household goods,bamboo packaging products,bamboo engineering materials,bamboo furniture products,and bamboo craft ***,disposable bamboo products scored an EBSP 1.96 times the overall average,indicating significant environmental *** Prr emerged as a critical factor influencing *** BSP products with the same lifespan,those with higher substitution emission reduction efficiency offered more pronounced environmental ***,the BSP industry should strategically prioritize disposable bamboo products,such as bamboo toothbrushes,cutlery,and lunch *** products should be the primary focus of policy support and central to efforts in product development,design innovation,and market promotion.

关键词： Bamboo as a substitute for plastic Bamboo products Substitution emission reduction Environmental benefits Gradingevaluation

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A review of persulfate-based advanced oxidation system for decontaminating organic wastewater via non-radical regime

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FrONTIErS OF ENVIrONMENTAL SCIENCE & ENGINEErING 2024年第11期18卷 134页

作者： Huang, Yunxin Zhao, Shouyan Chen, Keyu Huang, Baocheng Jin, rencun Hangzhou Normal Univ Sch Life & Environm Sci Hangzhou 310018 Peoples R China Hangzhou Normal Univ Sch Engn Hangzhou 310018 Peoples R China

The large amount of refractory organic wastewater produced from industry and agriculture sectors poses a significant threat to both water ecosystems and human health, necessitating the exploration of cost-efficient and efficacious removal techniques. Persulfate, when activated by various catalysts, can produce oxidative species, demonstrating promising potential in remediating organic wastewater. In recent years, numerous studies have unveiled that persulfate can be readily decomposed into nonradicals, which exhibits high selectivity toward pollutants and robust performance in complex wastewater environments. However, the challenges in identifying non-radicals and the unclear catalytic mechanism hinder its further application. This paper critically reviews the research progress on non-radical oxidation in persulfate-based heterogeneous catalytic system. The main advancements and existing challenges in three non-radical oxidation pathways, i.e., singlet oxygen, electron transfer, and high-valent metal oxides, are summarized, and the key factors influencing the production of nonradicals are elaborated. The engineering aspects of non-radical oxidation system are further discussed, and the future prospects of this technology in wastewater treatment are envisaged. This review aims to bridge the knowledge gaps between current research and future requirements.

关键词： Heterogeneous Peroxymonosulfate Peroxydisulfate Wastewater treatment Engineering application

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Effects of lactic acid bacteria fermentation on the bioactive composition,volatile compounds and antioxidant activity of Huyou(Citrus aurantium'Changshan-huyou')peel and pomace

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Food Quality and Safety 2023年第2期7卷 317-329页

作者： Yake He Yanyun Zhu Jimin Lvi Ye Gu Ting Wang Jianchu Chen College of Biosystems Engineering and Food Science National-Local Joint Engineering Laboratory of Intelligent Food Technology and EquipmentZhejiang Key Laboratory for Agro-Food ProcessingZhejiang Engineering Laboratory of Food Technology and EquipmentZhejiang UniversityHangzhouChina School of Automation Hangzhou Dianzi UniversityHangzhouChina

Using lactic acid bacteria(LAB)to ferment Huyou peel and pomace could provide a reference for making full use of Huyou resources and provide valuable suggestions for the industrial production of functional *** effects of LAB fermentation on the bioactive composition,volatile compounds and antioxidant activity of Huyou peel and pomace were *** showed that both Huyou peel and pomace were good substrates for LAB *** had remarkable influence on bioconversion of organic acids,among which ascorbic acid content was increased *** addition,LAB could produce flavonoids with enhanced bioactivity and *** particular,the contents of rhoifolin,quercitrin and quercetin were increased by over 100%.Besides,the volatile compounds contents and aroma complexity were ***,the antioxidant activity was ***,our study provides high-value applications of Huyou,and fermented products with improved nutritional value and flavor are potentially beneficial to human health.

关键词： Lactic acid bacteria,Huyou peel Huyou pomace bioactive composition volatile compounds

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Cobalt-catalyzed divergent functionalization of N-sulfonyl amines via β-carbon elimination

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Science China Chemistry 2022年第11期65卷 2214-2218页

作者： Lun Xu Hang Shi department of Chemistry Zhejiang UniversityHangzhou310027China Key Laboratory of Precise Synthesis of Functional Molecules of zhejiang Province School of ScienceWestlake UniversityHangzhou310024China Institute of Natural Sciences Westlake Institute for Advanced StudyHangzhou 310024China

This article demonstrates a catalytic method for C(aryl)-C(alkyl) bond functionalization of N-sulfonyl amines. A cobalt(III)catalyst was used to cleave the C-C bond via β-carbon elimination, providing a metallacycle intermediate. Subsequent allylation,amidation, or alkenylation of the intermediate led to divergent conversions in the presence of diverse coupling partners. when the coupling partner was a diene, an insertion-type functionalization was realized with an exclusive 1,3-regioselectivity, in which both of the fragments derived from N-sulfonyl amines were utilized.

关键词： cobalt amine β-carbon elimination C-C bond activation divergent functionalization

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Covalent organic framework-based solid-state electrolytes for advanced batteries

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Science China Chemistry 2024年第12期67卷 4037-4062页

作者： desheng Feng Zhen Qin Yumei ren Yuxi Xu School of Materials Science and Engineering Zhengzhou University of AeronauticsZhengzhou 450046China School of Engineering Westlake UniversityHangzhou 310024China

The emergence of solid-state batteries(SSBs)has generated significant interest in the field of energy storage,primarily due to their advantages such as high safety,high energy density and long *** state electrolytes(SSEs)play a crucial role in SSBs,which not only affects the ion transport efficiency,but also relates to the overall performance and stability of the *** recent years,SSEs based on covalent organic frameworks(COFs)have become a research focus in the battery field because of their unique structural characteristics and excellent *** review aims to provide an overview of the application and latest progress of COF-based SSEs in the field of advanced ***,the structural features of COFs and their advantages as SSEs are briefly introduced,followed by a summary of the types of COF-based SSEs(including neutral COF-based SSEs and ionic COF-based SSEs).The latest research progress in lithium ion batteries(LIBs),lithium metal batteries(LMBs),proton exchange membrane fuel cells(PEMFCs)and other advanced batteries recently is also ***,we summarize and outlook the current research status,the challenges faced in practical application,the future research directions and application prospects of COF-based SSEs.

关键词： covalent organic framework solid-state electrolytes advanced batteries

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deciphering nitrogen concentrations in Metasequoia glyptostroboides : a novel approach using rGB images and machine learning

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Journal of Forestry research 2024年第6期35卷 110-120页

作者： Cong Ma ran Tong Nianfu Zhu Wenwen Yuan Yanji Li GGeoff Wang Tonggui Wu East China Coastal Forest Ecosystem Long-Term research Station Research Institute of Subtropical ForestryChinese Academy of ForestryHangzhou 311400People’s Republic of China Nanjing Forestry University Nanjing 210037People’s Republic of China department of Forestry and Environmental Conservation Clemson UniversityClemsonSC 29634-0317USA

recent advances in spectral sensing techniques and machine learning(ML)methods have enabled the estimation of plant physiochemical ***(N)is a primary limiting factor for terrestrial forest growth,but traditional methods for N determination are labor-intensive,time-consuming,and *** this study,we present a rapid,non-destructive method to predict leaf N concentration(LNC)in Metasequoia glyptostroboides plantations under N and phosphorus(P)fertilization using ML techniques and unmanned aerial vehicle(UAV)-based rGB(red,green,blue)*** spectral vegetation indices(VIs)were extracted from the rGB *** spectral reflectance and VIs were used as input features to construct models for estimating LNC based on support vector machine,ran-dom forest(rF),and multiple linear regression,gradient boosting regression and classification and regression trees(CArT).The results show that rF is the best fitting model for estimating LNC with a coefficient of determination(r2)of *** this model,we evaluated the effects of N and P treatments on LNC and found a significant increase with N and a decrease with ***,diameter at breast height(dBH),and crown width of all *** were analyzed by Pearson correlation with the predicted *** was significantly correlated with LNC under N *** results highlight the potential of combining UAV rGB images with an ML algorithm as an efficient,scalable,and cost-effective method for LNC *** research can extend this approach to different tree species and different plant traits,paving the way for large-scale,time-efficient plant growth monitoring.

关键词： rGB images random forest LNC N and P addition Metasequoia

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A review on marine collagen:sources,extraction methods,colloids properties,and food applications

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Collagen and Leather 2024年第1期6卷 1-27页

作者： Shahzad Farooq Muhammad Ijaz Ahmad Shijie Zheng Usman Ali Yang Li Cui Shixiu Hui Zhang Jiaxing Institute of Future Food Jiaxing 314050China College of Biosystems Engineering and Food Science Zhejiang Key Laboratory for Agro-Food ProcessingZhejiang UniversityHangzhou 310058China

The growing interest in valorizing industrial by-products has led researchers to focus on exploring different sources and optimizing collagen extraction conditions over the past *** bovine hide,cattle bones,pork,and pig skins remain the most abundant collagen sources,there is a growing trend in the industrial utilization of collagen from non-mammalian *** review explores alternative marine collagen sourcesand summarizes emerging trends in collagen recovery from marine sources,with a particular focus on environmentally friendly ***,this review covers the colloidal structure-forming properties of marine collagens,including foam,film,gel,and emulsion *** also highlights the potential and important applications of marine collagen in various food *** on the currently reported marine sources,collagens extracted from fish,jellyfish,and sea cucumbers were found to have the highest yield and mostly comprised type-l collagen,while crustaceans and mollusks yielded lower percentages of *** extraction techniques isolate collagen based on acetic acid and pepsin treatment,but they come with drawbacks such as being time-consuming,causing sample destruction,and using ***,marine collagen extracted using conventional methods assisted with ultrasonication resulted in higher yields and strengthened the triple-stranded helical ***,an increasing number of new applications have been found in the food industry for marine collagens,such as biodegradable film-forming materials,colloid stabilizers,foaming agents,and micro-encapsulating ***,collagen is a modern foodstuff and is extensively used in the beverage,dairy,and meat industries to increase the stability,consistency,and elasticity of products.

关键词： Marine collagen Jellyfish Sea cucumber Colloid stabilizer Edible film dairy product

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Huangjing is not only a good medicine but also an affordable healthy diet

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Science China(Life Sciences) 2024年第11期67卷 2520-2522页

作者： donghong Chen dun Si Jingjing Liu Jinping Si State Key Laboratory of Subtropical Silviculture Zhejiang A&F UniversityHangzhou 311300China

In the 21st century,the global food security and nutrition situation has become increasingly complicated and *** four consecutive years from 2020 to 2023,the themes of the annual reports on“The State of Food Security and Nutrition in the World,”jointly prepared by the Food and Agriculture Organization of the United Nations(FAO),the International Fund for Agricultural development(IFAd),the United Nations Children’s Fund(UNICEF),the World Food programme(WFP)and the World Health Organization(WHO),have consistently focused on healthy diets(***).The Chinese government released the“14th Five-Year Plan for Bioeconomic development,”which clearly outlines the shift in approaches from“diseasecentered”to“health-centered”and from“solving the problem of food and clothing”to“nutrition diversity.”Concepts such as“the kitchen is the pharmacy”and“food is medicine”have become the prevailing trends of our times(Mozaffarian et al.,2022).Huangjing(Polygonati rhizoma)has unique advantages(Chen et al.,2021)and is expected to be an emerging crop and forest food(Figure 1)(Si et al.,2024;Si and Zhu,2021).

关键词： jointly Figure UNICEF

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Methane activation by[LnO]^(+):the 4f orbital matters

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Science China Chemistry 2024年第1期67卷 330-335页

作者： Bowei Yuan Jingxiang Zou Mincheng Yu Shaodong Zhou College of Chemical and Biological Engineering Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture TechnologyZhejiang UniversityHangzhou 310027China zhejiang Provincial Innovation Center of Advanced Chemicals Technology Institute of Zhejiang University–QuzhouQuzhou 324000China Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM) Xiamen 361005China

Gas-phase reactions of[LnO]^(+)with methane have been studied by using inductively coupled plasma-mass spectrometer(ICP-MS)combined with quantum chemical *** indicate that the[LnO]^(+)(Ln=Sm-Lu)ions are able to activate methane to generate methyl *** particular,[EuO]^(+)and[YbO]^(+)exhibit the highest ***,ab initio computations reveal a novel HAT process operating in the absence of a terminal oxygen radical,as mediated by[EuO]^(+)and[YbO]^(+).Such a process diverges from previous findings on the methane activation by metal oxide clusters,not only on the electronic pattern during the course of hydrogen transfer,but also on the important role that 4f electrons *** associated electronic origins have been discussed,and the well-designed 4f electron occupation may turn to be a promising approach in constructing lanthanide involved catalysts.

关键词： lanthanide oxides methane activation 4f orbitals quantum chemical calculation ion-molecule reaction

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