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Metal-Organic Frameworks-derived Indium Clusters/Carbon Nanocomposites for Efficient CO_(2) Electroreduction

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Chemical Research in Chinese Universities 2022年第5期38卷 1287-1291页

作者： GONG Yu PAN Jing zhang Lingling WANG Xiao SONG Shuyan zhang hongjie State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022P.R.China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026P.R.China Department of Chemistry Tsinghua UniversityBeijing 100084P.R.China

Electrochemical reduction of carbon dioxide into value-added products is a promising way to recycle the greenhouse gas,thus solving the crisis of global *** challenges remain in regulating the catalytic *** this work,we demonstrated a metal-organic frameworks-assisted approach to synthesizing In species loaded on the surface of N doped carbon *** controlling the particle sizes,the catalytic selectivity can be easily *** obtained Inc/NC possesses the outstanding capability for converting CO_(2)into *** 80.09%Faraday efficiency(FE)of CO can be achieved at 0.8 V *** the In_(2)O_(3)/C exhibits different catalytic behaviors,the main product is formic acid and the FE is more than 50%at 0.8 V *** selectivity reversal can be attributed to the strong interactions between In clusters and N atoms of carbon supports,which efficiently inhibits the formation of the by-product,formic *** research has paved a new way to modulate catalytic selectivity by manipulating the fine structures of the catalysts.

关键词： Indium cluster Indium oxide Electrochemical reduction CO_(2)electroreduction

宽幅条播对燕麦间作箭筈豌豆产量及种间关系的影响

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麦类作物学报 2024年第6期44卷 795-802页

作者：王英李立军韩雪赵鑫瑶韩冬雨张宏杰李嘉琪内蒙古农业大学农学院内蒙古呼和浩特010019

为明确宽幅条播对燕麦‖箭筈豌豆间作系统生产力的影响,在常规条播和宽幅条播两种播种方式下设置燕麦单作、箭筈豌豆单作及燕麦‖箭筈豌豆间作三种种植方式,比较分析了不同处理间作物产量、种间关系及燕麦产量构成因素的差异。结果表明... 详细信息

为明确宽幅条播对燕麦‖箭筈豌豆间作系统生产力的影响,在常规条播和宽幅条播两种播种方式下设置燕麦单作、箭筈豌豆单作及燕麦‖箭筈豌豆间作三种种植方式,比较分析了不同处理间作物产量、种间关系及燕麦产量构成因素的差异。结果表明,与单作相比,间作燕麦的饲草及籽粒产量显著提高,增幅分别为24.25%~32.77%和27.44%~32.69%,而间作箭筈豌豆的饲草及籽粒产量降低为7.16%~8.08%和2.80%~5.48%。宽幅条播可提高燕麦及箭筈豌豆产量,宽幅条播间作饲草和籽粒产量的土地当量比较常规条播间作分别提高0.03和0.06。在间作中,燕麦的侵占力大于0,实际产量损失大于1,竞争比率大于1,且燕麦的相对拥挤系数大于箭筈豌豆,说明燕麦在间作系统中处于竞争优势。间作燕麦穗数、穗粒数和穗重较单作显著提高,平均增幅分别为24.23%、14.84%和17.43%,其中宽幅条播间作处理的穗粒数、公顷穗数和穗重均显著高于其他处理。由此可见,宽幅条播下通过与箭筈豌豆间作,可提高燕麦生产力和土地资源利用效率。

关键词：燕麦箭筈豌豆宽幅条播间作籽粒产量产量构成因素土地当量比实际产量损失

Dual-enhancement of chromaticity and thermal stability:In-situ synthesis of core-shell γ-Ce_(2)S_(3) @CePO_(4) configuration

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Journal of Rare Earths 2022年第5期40卷 800-806,I0005页

作者： Kanglong Hui Wei Dong Jipeng Fu Mingxue Tang Qi Wei Chengyu Li hongjie zhang Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022China Center for High Pressure Science and Technology Advanced Research Beijing 100094China Institute of Optoelectronic Materials and Devices China Jiliang UniversityHangzhou 310018China College of Materials Science and Engineering BeijingUniversity of TechnologyBeijing 100124China

Non-toxic rare earth(RE) composite materials are promising and active in optoelectronic fields,such as *** this work,Na ions doped γ-Ce_(2) S_(3) pigments were synthesized by solid-phase vulcanization and followed by in-situ synthesis to prepare an outer layer of CePO_(4) *** characterizations of X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray photoelectron spectroscopy(XPS),solid state nuclear magnetic resonance(NMR) indicate that Na-dopedγ-Ce_(2) S_(3) and CePO_(4) uniformly and tightly coated core-shell structure was successfully *** thermogravimetric analysis(TG) and reflection spectrum(RS) reveal that the CePO_(4) coating significantly improves the colorant and thermal stability performance of γ-Ce_(2) S_(3) .The excellent color quality of γ-Ce_(2) S_(3) @CePO_(4)(L*=45.16,a*=55.94.b*=44.53) is achieved and the red color(L*=43.82,a*=49.79,b*=38.04) is still retained even if the sample is heated in air at 400℃ for 30 min.

关键词： γ-Ce_(2)S_(3) Red pigment Core-shell structure CePO_(4)coating Rare earths

Enhanced blue-light excited cyan-emitting persistent luminescence of BaLu_(2)Al_(2)Ga_(2)SiO_(12)∶Ce3+,Bi3+phosphors for AC-LEDs via defect modulation

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Light(Science & Applications) 2022年第7期11卷 1542-1554页

作者： Weihong Yuan Ran Pang Shangwei Wang Tao Tan Chengyu Li Chaowei Wang hongjie zhang State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China University of Science and Technology of China Hefei 230026China Zhongke Rare Earth(Guangzhou)Co. LtdGuangzhou 510700China

Alternating current light-emitting diodes(AC-LEDs)have received significant attention from both academia and industry due to their remarkable benefits of more compact volume,cheaper manufacturing cost,greater energy usage efficiency,and longer service *** of the most significant challenges for AC-LEDs is the flicker effect,which is mainly caused by the unavoidable 5-20 ms dimming *** to reduce the flicker effect,we designed a series of excellent blue-light excited cyan-emitting persistent luminescence(PersL)phosphors BaLu_(2)Al_(2)Ga_(2)SiO_(12)∶Ce^(3+),Bi^(3+)via defect engineering of co-doping Bi^(3+).Interestingly,we found that co-doping Bi^(3+)not only effectively enhanced the PersL intensity,but also regulated the PersL lifetime of this *** the Bi^(3+)co-doping concentration increases to 0.01,the T80 value(the time when the PersL intensity decreases to 80%of the initial intensity)increases from 0.24 to 19.61 ms,which proves to be effective in compensating the flicker effect of AC-LEDs.A new method of generating white light emission during the dimming time through adding the blue-light excited cyan PersL phosphor to the original orange-red PersL phosphor was proposed and an AC-LED lamp with a decreased percent flicker of 48.15%was fabricated,which is significantly better than the other currently reported AC-LED devices based on PersL *** results demonstrate that BaLu_(2)Al_(2)Ga_(2)SiO_(12):Ce^(3+),Bi^(3+)might be an attractive material for low-flicker AC-LEDs.

关键词： excited luminescence defect

电力调度数据交互安全风险监测及防护方法研究

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网络空间安全 2024年第4期15卷 326-331页

作者：张宏杰郑铁军贺建伟国网宁夏电力有限公司调度控制中心

[目的/意义]随着电力行业数字化进程的加快，电力调度数据交互的安全性已成为确保电网稳定运行的关键因素。通过深入分析电力调度数据交互过程中的安全风险，并提出有效的监测及防护方法，能够保障电网系统的安全可靠运行。[方法/过程]... 详细信息

[目的/意义]随着电力行业数字化进程的加快，电力调度数据交互的安全性已成为确保电网稳定运行的关键因素。通过深入分析电力调度数据交互过程中的安全风险，并提出有效的监测及防护方法，能够保障电网系统的安全可靠运行。[方法/过程]首先，对电力调控数据的特性进行深入分析，包括数据量大、复杂性高、数据类型多样化，以及敏感数据的识别与保护。其次，识别出电力调控数据交互中的主要安全风险，包括外部攻击、内部泄露、跨域数据共享的安全问题，以及对数据安全法规与标准的挑战。进一步地探索电力调控数据智能识别算法，包括监督学习与无监督学习算法的应用，以及算法效率与准确性分析。最后，提出一系列电力调控数据交互安全防护措施，涵盖安全标准与政策制定、安全控制策略的实施，以及安全防护中的技术创新应用。同时，介绍了电力调控数据交互安全风险的监测方法，包括实时监控、数据泄露的追踪与溯源，以及预警系统与应急响应的建立。[结果/结论]通过对电力调度数据交互的分析与深入研究，结合有效的监测与防护策略，可以显著提升数据交互过程的安全性。这不仅有助于预防和减少安全事故的发生，还为电力行业的数字化转型提供了重要的理论支撑和实践指导。

关键词：电力调度数据交互安全风险监测方法防护策略

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爬行器在水平井作业时的阻力分析与对策研究

石化技术 2024年第6期31卷 235-237页

作者：马骁张恒牛奔张志敏张鸿杰王恒尧中国石油集团测井有限公司制造公司陕西西安710000

通过对爬行器在井下运行过程中自身产生的牵引力、电缆拖拽阻力、仪器串摩擦阻力、流体阻力、井斜阻力等受力的综合分析,提出五种对策来克服或降低爬行器运行过程中受到的阻力。通过综合运用上述措施,保证爬行器顺利爬行、稳定工作,提... 详细信息

通过对爬行器在井下运行过程中自身产生的牵引力、电缆拖拽阻力、仪器串摩擦阻力、流体阻力、井斜阻力等受力的综合分析,提出五种对策来克服或降低爬行器运行过程中受到的阻力。通过综合运用上述措施,保证爬行器顺利爬行、稳定工作,提高爬行速度和爬行距离,节约测井时间成本,为现场使用工艺和仪器后续改进升级提供了理论依据和支撑基础。

关键词：井下工具爬行器受力分析阻力

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Enhanced electrocatalytic performance of ultrathin PtNi alloy nanowires for oxygen reduction reaction

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Frontiers in Energy 2017年第3期11卷 260-267页

作者： hongjie zhang Yachao ZENG Longsheng CAO Limeng YANG Dahui FANG Baolian YI Zhigang SHAO Fuel Cell System and Engineering Laboratory Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China University of the Chinese Academy of Sciences Beijing 100039 China

In this paper, ultrathin Pt nanowires （Pt NWs） and PtNi alloy nanowires （PtNi NWs） supported on carbon were synthesized as electrocatalysts for oxygen reduction reaction （ORR）. Pt and PtNi NWs catalysts composed of interconnected nanoparticles were prepared by using a soft template method with CTAB as the surface active agent. The physical characterization and electrocatalytic perfor- mance of Pt NWs and PtNi NWs catalysts for ORR were investigated and the results were compared with the commercial Pt/C catalyst. The atomic ratio of Pt and Ni in PtNi alloy was approximately 3 to 1. The results show that after alloying with Ni, the binding energy of Pt shifts to higher values, indicating the change of its electronic structure, and that Pt3Ni NWs catalyst has a significantly higher electrocatalytic activity and good stability for ORR as compared to Pt NWs and even Pt/C catalyst. The enhanced electrocatalytic activity of Pt3Ni NWs catalyst is mainly resulted from the downshifted-band center of Pt caused by the interaction between Pt and Ni in the alloy, which facilitates the desorption of oxygen containing species （Oads or OHads） and the release of active sites.

关键词： PtNi alloy nanowires oxygen reduction reaction enhanced activity good stability

Autotrophic potential in mesophilic heterotrophic bacterial isolates from Sino-Pacific marine sediments

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Acta Oceanologica Sinica 2017年第2期36卷 69-77页

作者： CAO Wenrui DAS Anindita SAREN Gaowa JIANG Mingyu zhang hongjie YU Xinke Key laboratory of Marine Geology and Environment (MAGE) Institute of Oceanology Chinese Academy of Sciences (IO-CAS) Qingdao 266071 China Institute of Biophysics Chinese Academy of Sciences (IBP-CAS) Beijing 100101 China Council of Scientific and Industrial Research (CSIR) National Institute of Oceanography Dona Paula Panaji 403004 India Maharashtra Association for the Cultivation of Science (MACS) Agharkar Research Institute Pune 411004 India

Microbial carbon fixation is a paramount process in the ocean especially below the photic zone both in water and sedimentary ecosystems. Autotrophic microbes that fix carbon dioxide are renowned. However, the question whether heterotrophs can also fix carbon is intriguing. Ten heterotrophically grown, identified bacterial isolates from the Sino-Pacific marine sediments were tested for autotrophic uptake potential with and without addition of electron donors. Nine of the ten isolates showed carbon uptake capacity without addition of any substrate at very low rates in the order of 10^（-8） to 10^（-4） fmol/（cell·h）. The addition of manganese and ammonium at 1 mmol/L final concentration enhanced the uptake potential. Addition of 1 mmol/L final concentrations of reduced iron（10^（-6） to10^（-5） fmol/（cell·h） and sulfide（10^（-5） fmol/（cell·h） decreased the uptake potential significantly at p〈0.1. Bacterial tolerance to formaldehyde suggested propensities of anaplerotic chemical reactions that form metabolic intermediates of C-1 metabolism pathways. The isolates displayed high metabolic flexibility. With the changes in electron donors, the isolates metabolically toggled between relatively anoxic reductive iron/sulfur cycles and the oxidative cycles of manganese/ammonium and vice-versa. This property makes these microbes successful survivors in the highly dynamic Sino-Pacific sediments.

关键词： autotrophy bacteria mesophiles heterotrophs Sino-Pacific

A nanotheranostic agent based on Nd^(3+)-doped YVO_(4) with blood-brain-barrier permeability for NIR-Ⅱ fluorescence imaging/magnetic resonance imaging and boosted sonodynamic therapy of orthotopic glioma

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Light(Science & Applications) 2022年第6期11卷 1088-1097页

作者： Zhijia Lv Longhai Jin Yue Cao Hao zhang Dongzhi Xue Na Yin Tianqi zhang Yinghui Wang Jianhua Liu Xiaogang Liu hongjie zhang State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry(CIAC)Chinese Academy of Sciences130022 ChangchunChina University of Science and Technology of China 230026 HefeiAnhuiChina Ganjiang Innovation Academy Chinese Academy of Sciences341000 GanzhouJiangxiChina Department of Radiology The Second Hospital of Jilin University130041 ChangchunChina Department of Neurosurgery The First Hospital of Jilin University130041 ChangchunChina Department of Chemistry National University of SingaporeSingapore 117543Singapore Department of Chemistry Tsinghua University100084 BeijingChina

The specific diagnosis and treatment of gliomas is a primary challenge in clinic due to their high invasiveness and blood-brain barrier(BBB)*** is highly desirable to find a multifunctional agent with good BBB penetration for precise ***,we design and construct a core-shell structured nanotheranostic agent(YVO_(4):Nd^(3+)-HMME@MnO_(2)-LF,marked as YHM)with YVO_(4)∶Nd^(3+) particles as the core and MnO_(2) nanosheets as the *** hematoporphyrinmonomethyl ether(HMME)and lactoferrin(LF)were further loaded and modified on the surface,giving it a good ability to cross the BBB,near-infrared fluorescence imaging in the second window(NIR-Ⅱ)/magnetic resonance imaging(MRI)bimodality,and highly efficient sonodynamic therapy(SDT)of orthotopic *** YVO_(4):Nd^(3+)(25%)core exhibited good NIR-Ⅱ fluorescence properties,enabling YHM to act as promising probes for NIR-Ⅱ fluorescence imaging of vessels and orthotopic ***_(2) shell can not only provide O2 in the tumor microenvironments(TME)to significantly improve the healing efficacy of SDT,but also release Mn^(2+) ions to achieve T1-weight MRI in ***-invasive SDT can effectively restrain tumor *** work not only demonstrates that multifunctional YHM is promising for diagnosis and treatment of orthotopic glioma,but also provides insights into exploring the theranostic agents based on rare earth-doped yttrium vanadate nanoparticles.

关键词： diagnosis agent barrier