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Nano-enabled solar driven-interfacial evaporation:Advanced design and opportunities

Nano Research 2023年第5期16卷 6015-6038页

作者： Xin Zhao Xiangtong Meng Hongqi Zou Yanjun Zhang Yangjun Ma Yadong Du Yuan Shao Jun Qi Jieshan Qiu State Key Laboratory of Organic–Inorganic Composites State Key Laboratory of Chemical Resource EngineeringCollege of Chemical EngineeringBeijing University of Chemical TechnologyBeijing 100029China Guangxi key Laboratory of Green Chemical materials and Safety Technology Beibu Gulf UniversityQinzhou 535011China

Solar-driven interfacial evaporation(SDIE)is emerging as a promising pathway to solving the worldwide water shortage and water pollution.Nanomaterials(e.g.,plasmonic metals,inorganic/organic semiconductors,and carbon nanomaterials)and related nanochemistry have attracted increasing attention for the solar-to-vapor process in terms of broadband absorption,electronic structure adjustment,and surface/interface chemistry manipulation.Furthermore,the assembly of nanomaterials can contribute to the mass transfer,heat management,and enthalpy regulation of water during solar evaporation.To date,numerous nano-enabled materials and structures have been developed to improve the solar absorption,heat management(i.e.,heat confinement and heat transfer),and water management(i.e.,activation,evaporation,and replenishment).In this review,we focus on a systematical summary about the composition and structure engineering of nanomaterials in SDIE,including size and morphology effects,nanostructure optimizations,and structure-property relationship decoupling.This review also surveys recent advances in nanochemistry(e.g.,preparation chemistry and structural chemistry)deployed to conceptual design of nanomaterials.Finally,the key challenges and future perspectives of nanomaterials for solar evaporation are overviewed.This review aims at providing guidance for the design and construction of nanomaterials for high-efficiency SDIE on the basis of the aspects of materials science and chemical engineering.

关键词： nanomaterials nanochemistry solar-driven interfacial evaporation solar-to-heat conversion light/heat management water activation

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Linkage map and QTL mapping of red flesh locus in apple using a R1R1×R6R6 population

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Horticultural Plant Journal 2021年第5期7卷 393-400页

作者： Chengquan Yang Guangya Sha Tao Wei Baiquan ma Cuiying Li Pengmin Li yangjun Zou Lingfei Xu Fengwang ma State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple College of HorticultureNorthwest A&F UniversityYanglingShaanxi 712100China

The red flesh in apple fruit is a desired trait by consumers and it is associated to the anthocyanin content,which is mainly controlled by MdMYB10 with a R6 promoter.In this study,a high-density linkage group was constructed using the‘Fuji’x‘Red3’population which contained homozygous alleles R1R1 and R6R6,respectively.The linkage group consists of 7630 SNPs along 17 linkage groups,spanning 2270.21 cM,with an average density of 0.30 cM permarker.The cyanidin-3-galactoside concentration was used as the phenotypic data in QTL analysis.Moreover,one QTL peak which was flaked by two markers,marker2187260 to marker2173766,with LOD scores of 4.49 was detected.This QTL ranged from 0 to 40.79 cM on the top of linkage group(LG16).In addition one candidate molecular marker(marker2175442)in this QTL was identified,which was significant correlated with the flesh cyanidin-3-galactoside concentration.These genetic findings enrich the breeding basis of fruit flesh coloration in apple.

关键词： Apple Red flesh Cyanidin-3-galactoside Linkage group Genetic mapping

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Potassium Uptake and Transport in Apple Roots Under Drought Stress

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Horticultural Plant Journal 2019年第1期5卷 10-16页

作者： Jianguo Qi Simin Sun Lin Yang Mingjun Li Fengwang ma yangjun Zou State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple College of Horticulture Northwest A & F University

As one of the most important mineral nutrient elements, potassium(K^+) plays an important role in many plant physiological processes and determines both the yield and quality of crops. There are two typical gene families that regulate K^+transport in higher plants, including K^+channels and K^+transporters. However, little is known about how these channels and transporters divide their work in response to drought stress. In this study, the hydroponic experiment was conducted on malus hupehensis. The K^+content was found to decrease in response to drought stress in M. hupehensis, the aboveground decreased by 34.15% and the underground decreased by 3.97%. Meanwhile, the root morphology change was detected by scanning the root system. Under conditions of drought, the genes encoding K^+transporters were upregulated including MdCHX1.3, MdCHX4.11, MdCHX4.8, MdCHX4.9, Md HKT1, and MdHAK3.2. The net influx of K^+was inhibited by 19.47% with the action of K^+channel inhibitors(CsCl), however a significant decrease(80.99%; P main K^+uptake under drought stress. These results suggest that we can improve the uptake of K^+by purposely up-regulating specific K^+transporters under drought stress. This process may improve growth, yield, quality, and stress tolerance in apple trees.

关键词： apple potassium drought stress transporter root morphology uptake

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Performance Improvement of a Centrifugal Compressor for the Fuel Cell Vehicle by Tip Leakage Vortex Control

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Journal of Thermal Science 2021年第6期30卷 2099-2111页

作者： CHEN Haoxiang ZHUGE Weilin ZHANG yangjun ma Xuelong TAO Lin State Key Laboratory of Automotive Safety and Energy Tsinghua UniversityBeijing 100084China Weichai Power Co. Ltd.Weifang 261061China Xecaturbo(Shanghai)Technology Co. Ltd.Shanghai 200241China

Heightened interests have been laid at the preliminary design and optimization of the centrifugal compressor for the fuel cell vehicle.The centrifugal compressor for fuel cell vehicle is driven by a high-speed motor;however,the limit of the motor speed makes the flow passage of the impeller long and narrow,which leads to a serious tip leakage loss.Serious tip leakage loss deteriorates the compressor performance.In this paper,3-D numerical simulations were carried out with the aim of investigating the tip leakage loss in a prototype centrifugal compressor for a 100 kW fuel cell stack.The results revealed that the mixing loss caused by the interaction between the tip leakage vortex and the downstream tip leakage flow contributed to the major part of the tip leakage loss.The path of the tip leakage vortex almost followed the streamwise direction,while the downstream tip leakage flow exhibited strong circumferential momentum,which referred to the fact that they were nearly orthogonal.Therefore,a flow control approach,which was realized by enhancing the blade loading around the leading edge of blade tips in this paper,was proposed to decrease the interaction angle between the tip leakage vortex and the downstream tip leakage flow and then mitigate mixing loss by changing the flow direction of the tip leakage vortex.The results showed a smaller interaction angle was achieved in the optimized impeller compared with the baseline one.Meanwhile,the efficiency was also improved by 1.30%at design condition and the maximum efficiency improvement could be up to 10%at large mass flow condition of 92000 r/min.Being manufactured and tested,the optimized compressor was proved to achieve an isentropic efficiency of 75.84%at design condition.

关键词： centrifugal compressor fuel cell vehicle efficiency improvement tip leakage vortex mixing loss

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佳峰煤矿1114工作面围岩裂隙特征及稳定性分类研究

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煤 2023年第5期32卷 106-108页

作者：马杨军山西离柳焦煤集团有限公司佳峰煤矿山西吕梁032300

针对佳峰煤矿煤层间距小的问题,采用理论分析、工程类比及现场监测的方法,以1114工作面为工程背景,确定了1114工作面顶板、工作面帮及煤柱帮围岩裂隙发育情况,综合考虑10号、11号煤层及底板泥岩物理力学参数,确定了1114工作面回采巷道... 详细信息

针对佳峰煤矿煤层间距小的问题,采用理论分析、工程类比及现场监测的方法,以1114工作面为工程背景,确定了1114工作面顶板、工作面帮及煤柱帮围岩裂隙发育情况,综合考虑10号、11号煤层及底板泥岩物理力学参数,确定了1114工作面回采巷道的围岩类型,为后续巷道支护方案设计提供了理论依据。

关键词：近距离煤层钻孔窥视裂隙发育围岩类型

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再生铜冶炼烟气脱硫工艺比选与评估

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工业技术创新 2021年第6期8卷 48-54页

作者：马杨军江西铜业股份有限公司贵溪冶炼厂江西贵溪335424

有色金属火法冶炼过程中会产生较多污染物,对环境造成潜在威胁。为提升复杂有色金属原料处理能力,以贵溪冶炼厂倾动炉车间(再生铜冶炼车间)为例,提出再生胺脱硫工艺、双氧水脱硫工艺两种升级改造方案,并开展比选与评估。研究发现:双氧... 详细信息

有色金属火法冶炼过程中会产生较多污染物,对环境造成潜在威胁。为提升复杂有色金属原料处理能力,以贵溪冶炼厂倾动炉车间(再生铜冶炼车间)为例,提出再生胺脱硫工艺、双氧水脱硫工艺两种升级改造方案,并开展比选与评估。研究发现:双氧水脱硫工艺具有流程简单、所需设备少、运行成本低、吸收效果好等优势。工艺自2020年3月投入运行以来,展现稳定、安全、可靠特征,处理后尾气中SO_(2)浓度低至0.96 mg/Nm^(3)(远低于50 mg/Nm^(3)标准),烟尘浓度低至4.92 mg/Nm^(3)(低于10 mg/Nm^(3)标准),酸雾浓度低至8.26 mg/Nm^(3)(低于10 mg/Nm^(3)标准),达到超低排放等级。相比再生胺脱硫工艺,双氧水脱硫工艺年运行成本约节省89.3万元。双氧水脱硫工艺的应用为有色金属冶炼企业持续发展、节能减排提供了有力保障。

关键词：再生铜冶炼倾动炉 SO_(2) 再生胺脱硫工艺双氧水脱硫工艺

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线性菲涅尔式太阳能聚光系统二次聚光器研究进展

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中国科学：技术科学 2020年第8期50卷 997-1008页

作者：马军王成龙夏养君兰州交通大学聚光太阳热能产业关键技术与装备省部共建协同创新中心兰州730070 兰州交通大学国家绿色镀膜技术与装备工程技术研究中心兰州730070 兰州交通大学光电技术与智能控制教育部重点实验室兰州730070

二次聚光器配合固定安装的高温真空集热管(由吸热管和玻璃管组成)可以解决旋转接头高温动密封的技术难题,运行更高温的传热介质,使线性菲涅尔式太阳能聚光系统在提高发电效率和降低成本方面更具潜力.本文综述了传统复合抛物面二次聚光器... 详细信息

二次聚光器配合固定安装的高温真空集热管(由吸热管和玻璃管组成)可以解决旋转接头高温动密封的技术难题,运行更高温的传热介质,使线性菲涅尔式太阳能聚光系统在提高发电效率和降低成本方面更具潜力.本文综述了传统复合抛物面二次聚光器(CPC)和新型二次聚光器的研究进展,重点论述了CPC间隙确定方法和接收半角的选择对其光学性能的影响,分析了新型二次聚光器的优缺点,探讨了二次聚光器的实际应用问题,展望了二次聚光器未来的研究重点.分析结果表明:对于CPC间隙确定方法,渐开线起始点前移的间隙损失较小且易于后期加工;接收半角的选择应综合考虑CPC光学性能和开口宽度.基于自适应方法的新型二次聚光器光学效率与CPC相当;当要求吸热管表面达到更高的能流密度或吸热管周向能流分布更均匀时,CPC为最佳选择.

关键词：太阳能线性菲涅尔式二次聚光器复合抛物面聚光器

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Forging Inspired Processing of Sodium-Fluorinated Graphene Composite as Dendrite-Free Anode for Long-Life Na–CO_(2) Cells

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Energy & Environmental materials 2022年第2期5卷 572-581页

作者： Yangjun Mao Xiao Chen Hao Cheng Yunhao Lu Jian Xie Tao Zhang Jian Tu Xiongwen Xu Tiejun Zhu Xinbing Zhao State Key Laboratory of Silicon materials School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China Department of Physics Zhejiang UniversityHangzhou 310027China State Key Lab of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China LI-FUN Technology Corporation Limited Zhuzhou 412000China

Na–CO_(2) batteries recently are emerging as promising energy-storage devices due to the abundance of Na in the earth’s crust and the clean utilization of greenhouse gas CO_(2) .However,similar to metallic Li,metallic Na also suffers from a serious issue of dendrite growth upon repeated cycling,while a facile method to solve this issue is still lacking.In this work,we report an effective,environmentally friendly method to inhibit Na dendrite growth by in situ constructing a stable,NaF-rich solid electrolyte interface(SEI)layer on metallic Na via adding a small amount(~3 wt%)of fluorinated graphene(FG)in bulk Na.Inspired by the forging processing,a uniform Na/FG composite was obtained by melting and repetitive FG-adsorbing/hammering processes.The Na/FG–Na/FG half cell exhibits a low voltage hysteresis of 110–140 mV over 700 h at a current density up to 5 ma cm^(-2) with an areal capacity as high as 5 mah cm^(-2).Na–CO_(2) full cell with the Na/FG anode is able to sustain a stable cycling of 391 cycles at a limited capacity of 1000 mah g^(-1).Long cycle life of the cell can be attributed to the protecting effect of the in situ fabricated NaF-rich SEI layer on metallic Na.Both experiments and density functional theory(DFT)calculations confirm the formation of the NaF-rich SEI layer.The inhibition effect of the NaF-rich SEI layer for Na dendrites is verified by in situ optical microscopy observations.

关键词： composite anode fluorinated graphene Na dendrite Na-CO_(2)battery NaFrich protecting layer

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Progress and perspective of high strain NBT-based lead-free piezoceramics and multilayer actuators

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Journal of materiomics 2021年第3期7卷 508-544页

作者： Pengyuan Fan Kai Liu Weigang ma Hua Tan Qi Zhang Ling Zhang Changrong Zhou David Salamon Shan-Tao Zhang yangjun Zhang Bo Nan Haibo Zhang School of materials Science and Engineering State Key Laboratory of Material Processing and Die&Mould TechnologyHuazhong University of Science and TechnologyWuhan430074PR China School of materials Science and Engineering University of New South WalesSydney2052Australia School of Mechanical and Electrical Engineering Shihezi UniversityShiheziChina College of materials Science and Engineering Guilin University of Electronic TechnologyGuilin541004PR China Central European Institute of Technology(CEITEC)Brno University of Technology Czech Republic National Laboratory of Solid State Microstructures Department of Materials Science and EngineeringCollege of Engineering and Applied ScienceCollaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing210093China State Key Laboratory of Automotive Safety and Energy School of Vehicle and MobilityTsinghua UniversityBeijing100084PR China Guangdong HUST Industrial Technology Research Institute Dongguan523808PR China

In this review,the evolution of high strain Na_(0.5)Bi_(0.5)TiO_(3)-based lead-free piezoceramics and their multilayer actuators has been explored.First,in terms of Na_(0.5)Bi_(0.5)TiO_(3)-based ceramic materials,the origin of high strain,the typical chemical modification methods of obtaining large strain and extrinsic factors affecting the large strain are discussed.Then it briefly summarizes the problems existing in Na_(0.5)Bi_(0.5)TiO_(3)-based ceramics for multilayer actuator applications.Strategies to optimize strain performance by means of microstructure control and phase structure design are also discussed.Thereafter,in terms of multilayer actuator,we describe its characteristics,applications and preparation process systematically,as well as the recent development of Na_(0.5)Bi_(0.5)TiO_(3)-based multilayer actuator.At last,perspectives on directions of following work and promising fields for the applications of the materials and their devices are presented.

关键词： Lead-free piezoceramics Bismuth sodium titanate Electric-field-induced strain Multilayer actuators

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苹果MdGH3-2/12在盐胁迫下的功能分析

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干旱地区农业研究 2021年第6期39卷 39-52页

作者：马梦楠刘媛马锋旺邹养军西北农林科技大学园艺学院陕西杨凌712100

于2020年5月—2021年2月以苹果野生型WT植株和MdGH3-2/12的RNA干扰转基因植株(RNAi)为材料,采用水培试验方法测定了盐胁迫条件下苹果植株的表型、生长量、光合参数、叶绿素含量、抗氧化酶及活性氧(ROS)含量变化,初步解析了MdGH3-2/12在... 详细信息

于2020年5月—2021年2月以苹果野生型WT植株和MdGH3-2/12的RNA干扰转基因植株(RNAi)为材料,采用水培试验方法测定了盐胁迫条件下苹果植株的表型、生长量、光合参数、叶绿素含量、抗氧化酶及活性氧(ROS)含量变化,初步解析了MdGH3-2/12在苹果响应盐胁迫中的功能。研究结果表明:(1)与WT植株相比,RNAi植株叶表面出现更多的褐斑和坏死,且根系活力显著降低,其3个株系(GR-1,GR-9,GR-10)根系活力分别为WT植株的93.8%、77.5%和90.0%;植株的生长和光合作用受到更大影响,Pn、Ci和Gs都显著降低,其中Pn值分别下降至WT植株的62.9%、77.41%和83.6%。最大光化学效率(F_(v)/F_(m))也显著下降,3个株系分别为WT植株的97.0%、96.4%和97.5%;叶绿素含量分别显著下降至WT植株的90.7%、86.2%和81.9%,MDA含量分别为WT植株的1.15、1.25倍和1.16倍;REL含量分别为WT植株的1.23、1.39倍和1.48倍;叶片气孔开度在盐胁迫下也分别缩小了35.0%、39.0%、55.0%和46.2%。(2)与WT植株相比,RNAi植株株系体内Pro含量显著增加,3个株系分别为WT植株的7.1、10.3倍和6.3倍;叶片中ROS积累显著高于WT植株,H2O2含量分别为WT植株的1.6、1.8倍和1.8倍,而抗氧化酶活性显著下降,各材料(WT,GR-1,GR-9,GR-10)盐胁迫组的SOD酶活性分别为对照组的2.4、1.2、1.7倍和1.9倍,这表明与WT植株相比,盐胁迫下RNAi植株各株系不能有效清除ROS,对植株造成了更大伤害。(3)盐胁迫后各材料植株的Na^(+)/K^(+)比值分别为0.497、0.558、0.525和0.577,RNAi植株株系显著高于WT植株,但是相关离子转运基因的表达量显著低于WT植株,致使Na^(+)不能及时外排,植株受到钠离子毒害,从而导致其耐盐性降低。以上结果表明,MdGH3-2/12在苹果植株应对盐胁迫方面发挥着重要的作用,将MdGH3-2/12基因干扰后苹果植株在盐胁迫下受到的伤害更大,植株对盐胁迫的抗性下降。

关键词： MdGH3-2/12 苹果盐胁迫功能分析

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