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Molecular packing tuning via chlorinated end group enables efficient binary organic solar cells over 18.5%

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Carbon Energy 2024年第3期6卷 196-203页

作者： Yafeng Li Zhenyu Chen Xingzheng Yan Ziyi Ge zhejiang Business Technology institute NingboZhejiangChina zhejiang Engineering Research Center for Energy Optoelectronic Materials and Devices Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingboZhejiangChina Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijingChina

Designing novel nonfullerene acceptors(NFAs)is of vital importance for the development of organic solar cells(OSC).Modification on the side chain and end group are two powerful tools to construct efficient ***,based on the high-performance L8BO,we selected 3-ethylheptyl to substitute the inner chain of 2-ethylhexyl,obtaining the backbone of *** we introduced different halogen atoms of fluorine and chlorine on 2-(3-oxo-2,3-dihydro-1Hinden-1-ylidene)malononitrile end group(EG)to construct efficient NFAs named BON3-F and BON3-Cl,*** donor D18 was chosen to combine with two novel NFAs to construct OSC ***,D18:BON3-Cl-based device shows a remarkable power conversion efficiency(PCE)of 18.57%,with a high open-circuit voltage(V_(OC))of 0.907 V and an excellent fill factor(FF)of 80.44%,which is one of the highest binary PCE of devices based on D18 as the ***,BON3-F-based device shows a relatively lower PCE of 17.79%with a decreased FF of 79.05%.The better photovoltaic performance is mainly attributed to the red-shifted absorption,higher electron and hole mobilities,reduced charge recombination,and enhanced molecular packing in the D18:BON3-Cl ***,we performed stability tests on two binary systems;the D18:BON3-Cl and D18:BON3-F devices maintain 88.1%and 85.5%of their initial efficiencies after 169 h of storage at 85°C in an N2-filled glove box,*** work demonstrates the importance of selecting halogen atoms on EG and provides an efficient binary system of D18:BON3-Cl for further improvement of PCE.

关键词： binary organic solar cell chlorinated end group molecular packing

Telomere-to-telomere genome assemblies of two Chinese Baijiu-brewing sorghum landraces

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Plant Communications 2024年第6期5卷 9-12页

作者： Jiandong Bao Heng Zhang Fulin Wang Lin Li Xueming Zhu Junfeng Xu Yao Wang Zhijian Liu Guowei Zhai Heng Xu Fucheng Lin Ying Zhu State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products Zhejiang Academy of Agricultural SciencesHangzhou 310021ZhejiangChina institute of Plant Protection and Microbiology Zhejiang Academy of Agricultural SciencesHangzhou 310021China institute of Virology and Biotechnology Zhejiang Academy of Agricultural SciencesHangzhou 310021China College of Advances Agricultural Science Zhejiang A&F UniversityHangzhou 311300ZhejiangChin

Dear Editor,Sorghum(Sorghum bicolor[L.]Moench)(2n=20),a C4 droughttolerant cereal crop,is widely cultivated for food,feed,and biofuel,resulting in varieties with distinct morphological *** Sanger-sequencing-based sorghum reference genome of the inbred variety BTx623(grain sorghum)was initially released in 2009(base error<1 per 10 kb)(Paterson et al.,2009),and the most widely used version 3 assembly(base error<1 per 100 kb),consisting of 4773 contigs with 2679 unresolved gaps(~28 Mb)in 10 chromosomes,was improved by next-generation sequencing in 2017(McCormick et al.,2018).

关键词： Sorghum cultivated cereal

Energy Price Fluctuation and Real Estate Market Risk Prevention——Empirical Evidence at the Prefecture-Level City Level in China

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China Finance and Economic Review 2024年第2期13卷 3-25页

作者： Zhenxia Wang Bingqian Yan Lei Wang National academy of Economic Strategy Chinese Academy of Social Sciences institute of Industrial Economics Chinese Academy of Social Sciences

The impact of energy price fl uctuation on the macro economy is a hot issue that is continuously concerned by the academic community,but few literature have paid attention to the impact of energy price fl uctuation on housing price and the financial risks that may *** on the data of cities at and above the prefecture level in China,this paper empirically examines the impact of energy price fl uctuation on the price fl uctuation of the domestic real estate,and analyzes its infl uencing mechanism and transmission *** results show that changes of energy price will significantly affect the fl uctuation of domestic real estate price,and it is more obvious in large cities and *** price affect the demand for housing through changes of interest rate levels on the one hand,and the supply of the real estate market through the cost of housing construction on the other hand,which leads to housing price fl *** a series of robustness tests,the results are still *** the same time,the effect is asymmetric,that is,higher energy price increases the fl uctuation of house price,but the impact of falling energy price is not ***,when preventing real estate market risks,energy price should be considered as a forward-looking indicator to focus on,and the regulation and control policies of the real estate market should be scientifically *** paper not only provides a new perspective on the mechanism of housing price formation,but also enriches the research on the interconnection between energy and financial markets.

关键词： energy price real estate price financial risk

Uncovering the electrooxidation behavior of 5-hydroxymethylfurfural on Ni/Co electrodes

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Journal of Energy Chemistry 2024年第5期92卷 1-7页

作者： Shilin Fan Bin Zhu Xiao Yu Yang Gao Weiping Xie Yong Yang Jian Zhang Chunlin Chen Ningbo institute of Materials Technology&Engineering Chinese Academy of SciencesNingbo 315201ZhejiangChina University of Chinese academy of sciences Beijing 100049China

Biomass,derived from plant photosynthesis that captures carbon dioxide to form carbohydrates,offers vast renewable *** electrooxidation of biomass,coupled with the hydrogen evolution reaction,enables the simultaneous production of biomass-based plastic monomers and green hydrogen,attracting significant scholarly ***,ambiguity remains regarding the adsorption mechanism at the catalyst surface(Langmuir-Hinshelwood or Eley-Rideal)and the adsorbed substrate *** address this,we prepared a Ni/Co electrode for the electrooxidation of 5-hydroxymethylfurfural(HMF)into 2,5-furandicarboxylic acid(FDCA)through a corrosion reaction and electro-reduction *** conversion reached 100.00%,FDCA yield reached 96.82%,and Faradic efficiency(FE)reached 92.14%.Meaningfully,utilizing in-situ spectroscopy and electrochemical methods,this work provided valuable insights into active sites and catalyst surface adsorption.

关键词： Electrocatalysis Electrochemistry 2,5-Furandicarboxylicacid 5-Hydroxymethylfurfural Biomass

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Genome-Wide Association Study of Cooked Rice Textural Attributes and Starch Physicochemical Properties in indica Rice

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Rice science 2024年第3期31卷 300-316,I0018-I0041页

作者： DENG Bowen ZHANG Yanni ZHANG Fan WANG Wensheng XU Jianlong ZHANG Yu BAO Jinsong institute of Nuclear Agricultural sciences Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang ProvinceCollege of Agriculture and BiotechnologyZhejiang UniversityHangzhou 310058China Hainan institute Zhejiang UniversitySanya 572025China institute of Crop sciences Chinese Academy of Agricultural SciencesBeijing 100081China

Rice cooking and eating qualities(CEQ)are mainly determined by cooked rice textural parameters and starch physicochemical ***,the genetic bases of grain texture and starch properties in rice have not been fully *** conducted a genome-wide association study for apparent amylose content(AAC),starch pasting viscosities,and cooked rice textural parameters using 279 indica rice accessions from the 3000 Rice Genome *** identified 26 QTLs in the whole population and detected single nucleotide polymorphisms(SNPs)with the lowest P-value at the Waxy(Wx)locus for all traits except pasting temperature and ***,we detected significant SNPs at the SUBSTANDARD STARCH GRAIN6(SSG6)locus for AAC,setback(SB),hardness,adhesiveness,chewiness(CHEW),gumminess(GUM),and *** subsequently divided the population using a SNP adjacent to the Waxy locus,and identified 23 QTLs and 12 QTLs in two sub-panels,WxT and WxA,*** these sub-panels,SSG6 was also identified to be associated with pasting parameters,including peak viscosity,hot paste viscosity,cold paste viscosity,and consistency ***,a candidate gene encoding monosaccharide transporter 5(OsMST5)was identified to be associated with AAC,breakdown,SB,CHEW,and *** total,39 QTLs were co-localized with known genes or previously reported *** identified genes and QTLs provide valuable information for genetic manipulation to improve rice CEQ.

关键词： cooking and eating quality genome-wide association study rice Waxy gene

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Numerical evaluations on the fluid production in the in-situ conversion of continental shale oil reservoirs

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Petroleum Science 2024年第4期21卷 2485-2501页

作者： Zhao-Bin Zhang Maryelin Josefina Brice?o Montilla Shou-Ding Li Xiao Li Jian-Peng Xing Yan-Zhi Hu Key Laboratory of Shale Gas and Geoengineering Institute of Geology and Geophysics Chinese Academy of Sciences institute of Earth sciences Chinese Academy of Sciences College of Earth and Planetary sciences University of Chinese Academy of Sciences institute of Energy Peking University

In-situ conversion presents a promising technique for exploiting continental oil shale formations,characterized by highly fractured organic-rich rock. A 3D in-situ conversion model, which incorporates a discrete fracture network, is developed using a self-developed thermal-flow-chemical(TFC) *** of the model elucidates the in-situ conversion process in three stages and defines the transformation of fluids into three distinct outcomes according to their end stages. The findings indicate that kerogen decomposition increases fluid pressure, activating fractures and subsequently enhancing permeability. A comprehensive analysis of activated fracture permeability and heating power reveals four distinct production modes, highlighting that increasing heating power correlates with higher cumulative fluid production. Activated fractures, with heightened permeability, facilitate the mobility of heavy oil toward production wells but hinder its cracking, thereby limiting light hydrocarbon ***, energy efficiency research demonstrates the feasibility of the in-situ conversion in terms of energy utilization, especially when considering the surplus energy from high-fluctuation energy sources such as wind and solar power to provide heating.

关键词： In-situ conversion Continental shale oil Natural fracture network TFC model

Comparative metabolic analysis and antioxidant properties of purple and white wheat grains:implications for developing functional wheat varieties

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Food Quality and Safety 2024年第1期8卷 124-134页

作者：孙楠楠张至中徐月婷徐正圆李宝强樊青峰张国平叶玲珍 Department of Agronomy Zhejiang UniversityHangzhouChina Shandong(Linyi)institute of Modern Agriculture Zhejiang UniversityLinyiChina Linyi academy of Agricultural sciences LinyiChina

Objectives:Pigmented wheat has garnered increased attention due to its elevated antioxidant *** study aimed to compare the metabolic components and antioxidant properties of purple and white wheat *** and Methods:Metabolic analysis identified a total of 405 secondary metabolites using three extraction methods:free,acid,and alkali ***:The results revealed that,compared with white wheat,purple wheat exhibited significantly higher levels of total polyphenols,total flavonoids,and antioxidant ***,there were substantial variations in 90,80,and 73 secondary metabolites between white and purple wheat under the respective extraction *** contents of hispidulin-8-C-(2ʹʹ-O-glucosyl)glucoside,hispidulin-8-C-glucoside,diosmetin6-C-glucoside,and scoparin decreased across all groups,while the contents of peonidin-3-O-glucoside,keracyanin,kuromanin cyanidin-3-Oglucoside,and cyanidin-3-O-(6ʹʹ-O-malonyl)glucoside ***:These findings suggest that pathways associated with anthocyanin,flavone,and flavonol biosynthesis were ***,each extraction method revealed distinct secondary *** and alkali hydrolysis upregulated 16 and 3 metabolites in purple wheat,and 20 and 3 metabolites in white wheat,*** and alkaline hydrolysis also identified indole-3-carboxylic acid,vanillic acid,pyridoxine,and other metabolites with antioxidant and antihypertensive effects in both white and purple *** indicates that acid and alkaline hydrolysis can dissociate a greater variety and quantity of differential *** findings offer valuable insights for breeders seeking to develop wheat varieties with enhanced functional nutritional value.

关键词： Wheat(Triticum aestivum L.) grain color metabolite profiles secondary metabolites healthy food.

Exploring the impact of economic growth and energy consumption on SO2 emissions in China based on the Environmental Kuznets Curve hypothesis

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Petroleum Science 2024年第4期21卷 2892-2900页

作者： Bing-Jie Xu Yi-Fei Shen Hui Qiao Zhi Gao Faculty of Business City University of Macau Rural Development institute Chinese Academy of Social Sciences School of Marxism Shenzhen Polytechnic University

This study aims to analysis the influence of economic growth(EG) and energy consumption(EC) on sulfur dioxide emissions(SE) in China. Accordingly, this study explores the link between EG, EC, and SE for 30 provinces in China over the span of 2000-2019. This study also analyzes cross-sectional dependence tests, panel unit root tests, Westerlund panel cointegration tests, Dumitrescu-Hurlin(D-H) causality tests. According to the test results, there is an inverted U-shaped association between EG and SE,and the assumption of the Environmental Kuznets Curve(EKC) is verified. The signs of EG and EC in the fixed effect(FE) and random effect(RE) methods are in line with those in the dynamic ordinary least squares(DOLS), fully modified ordinary least squares(FMOLS) and autoregressive distributed lag(ARDL)estimators. Moreover, the results verified that EC can obviously positive impact the SE. To reduce SE in China, government and policymakers can improve air quality by developing cleaner energy sources and improving energy efficiency. This requires the comprehensive use of policies, regulations, economic incentives, and public participation to promote sustainable development.

关键词： SO 2 emissions Economic growth Energy consumption EKC China

Illuminating functions of evolutionarily conserved long non-coding RNAs

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Science China(Life sciences) 2024年第9期67卷 2043-2044页

作者： Ruiqiao He Fangqing Zhao institute of Zoology Chinese Academy of SciencesBeijing 100101China Key Laboratory of Systems Health Science of zhejiang Province Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou 310024China

Long non-coding RNAs(lnc RNAs)serve as crucial regulators of gene expression,influencing various physiological processes and disease states(Cabili et al.,2011;Ulitsky and Bartel,2013;Yao et al.,2019).Dysregulation of certain notable lnc RNAs,such as HOTAIR and MALAT1,has been implicated in a wide range of pathological processes,including tumorigenesis in various human cancers(Gupta et al.,2010;Kim et al.,2018).However,the functions of the majority of lnc RNAs remain elusive.

关键词： MALAT1 HOTAIR

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