|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Spatio-temporal changes of NDVI and its relation with climatic variables in the source regions of the Yangtze and Yellow rivers显示文摘Yangtze 和黄河的来源区域是中国的重要的水保存区域。在最近的年里,全球气候变化和无理的资源开发引起的来源区域的生态的恶化趋势逐渐地增加了。在这份报纸,空间分发和在 Yangtze 和黄河的来源区域的植被盖子的动态变化被分析在最近 10 年基于 1-km 分辨率从 1998 ~ 2007 的多时间的 SPOTVGT-DN 数据。同时,在空气温度,降水,浅地面温度和 NDVI 之间的关联关系,哪个是 3?? | YANG Zhaoping GAO Jixi ZHOU Caiping SHI Peili ZHAO Lin SHEN Wenshou OUYANG Hua | 2011 | Journal of Geographical Sciences2011，21，6： | 24 |
| 2 | Spatiotemporal characteristics of cultural sites and their driving forces in the Ili River Valley during historical periods显示文摘这研究使用 ArcGIS 在西北的中国在 Ili 河山谷分析文化地点的空间与时间的分发。它探索在这些地点之间的关系空间与时间的进化特征,人的历史,和自然环境。结果显示这些地点的数字和比例,和他们的出现的频率,在六个历史的时期期间展出了一个转换塑造 V 的变化趋势。在东方高、在转移到的开始的三个时期的向西空间的分发模式低在西方高、在东方低在后者期间三个时期,在人的活动的空间重心表明一个变化。这些地点主要在等级的斜坡上被散布 15,与他们在春天和秋天时期(770 BC476 BC ) 期间从 75% 增加的比例 Qin 王朝(221 BC207 BC ) 到 93.75% 在 Qing DynastyModern 时期期间。地点举起的集中的分发变了从在春天和秋天 PeriodQin 王朝,和西方的汉(206 BC8 ) 期间分级 48 南部、北的王朝(420589 ) ,到在后者期间分级 14 三个时期。地点的数字从高举起的山和山,并且从高斜坡显示出一个变的趋势到低举起的平原到低斜坡。特别地,这些地点从中间、在上游的区域展出了移植的一个特殊潮湿的进化模式到下游的区域,与位于典型干旱区域的地点的迁居模式对比。学习也认为显著地,影响分发和文化地点的空间与时间的进化的因素是人的因素和自然因素。 | WANG Fang YANG Zhaoping LUAN Fuming XIONG Heigang SHI Hui WANG Zhaoguo ZHAO XingYou QIN Wenmin WU Wenjie LI Dong | 2015 | Journal of Geographical Sciences2015，25，9： | 5 |
| 3 | Scalable and fast fabrication of graphene integrated micro-supercapacitors with remarkable volumetric capacitance and flexibility through continuous centrifugal coating显示文摘Microscale electrochemical energy storage devices,e.g., micro-supercapacitors(MSCs),possessing tailored performance and diversified form factors of lightweight,miniaturization,flexibility and exceptional integration are highly necessary for the smart power sources-unitized electronics.Despite the great progress,the fabrication of MSCs combining high integration with high volumetric performance remains largely unsolved.Herein,we develop a simple,fast and scalable strategy to fabricate graphene based highly integrated MSCs by a new effective continuous centrifugal coating technique.Notably,the resulting highly conductive graphene films can act as not only patterned microelectrodes but also metal-free current collectors and interconnects,endowing modular MSCs with high integrity,remarkable flexibility,tailored voltage and capacitance output,and outstanding performance uniformity.More importantly,the strong centrifugal force and shear force generated in continuous centrifugal coating process lead to graphene films with high alignment,compactness and packing density,contributing to excellent volumetric capacitance of ~31.8 F cm^(-3) and volumetric energy density of ~2.8 mWh cm^(-3),exceeding most reported integrated MSCs.Therefore,our work paves a novel way for simple and scalable fabrication of integrated MSCs and offers promising opportunities as standalone microscale power sources for new-generation electronics. | Xiaoyu Shi Lijun Tian Sen Wang Pengchao Wen Ming Su Han Xiao Pratteek Das Feng Zhou Zhaoping Liu Chenglin Sun Zhong-Shuai Wu Xinhe Bao | 2021 | Journal of Energy Chemistry2021，30，1： | 3 |
| 4 | Comparative study on pyrolysis of bamboo in microwave pyrolysis-reforming reaction by binary compound impregnation and chemical liquid deposition modified HZSM-5显示文摘The deactivation of catalyst is a significant reason for its limited application during the catalytic fast pyrolysis(CFP)process.To reduce the coke formation,binary compound impregnation(BCI)and chemical liquid deposition(CLD)were used to modify HZSM-5 catalysts.At the same time,the self-designed microwave reactor separated the pyrolysis of bamboo and catalytic upgrading of primary vapor,which made the catalytic effect more thorough.Experimental results indicated that CLD used TiO 2 deposition to cover external acid sites,while BCI by phosphorus-nickel could cover and partly destroy superficial acid sites through two different ways.Within the scope of the loaded amount studied,the yield of aromatic hydrocarbons in the oil phase increased at first and then decreased,while the coke formation reduced continuously.BTX(benzene,toluene and xylene),the most valuable product in bio-oil,drastically increased by 39.1%and 22.6%respectively over the CLD and BCI modified catalysts.Considering the catalytic performance as well as cost,CLD over HZSM-5 has more advantages in the CFP process to upgrade bio-oil. | Haoran Du Zhaoping Zhong Bo Zhang Kun Shi Zhaoying Li | 2020 | Journal of Environmental Sciences2020，32，8： | 2 |
| 5 | Freestanding Pt nanosheets with high porosity and improved electrocatalytic performance toward the oxygen reduction reaction显示文摘Because of the intriguing electronic properties, high specific surface areas and confinement effect, two-dimensional(2D) noble metal nanosheets usually exhibit fascinating physicochemical properties and thus hold great promises in fuel cell devices and beyond. Herein, 2D porous Pt nanosheets composed by interweaved ultrathin nanowires are successfully fabricated via a facile NaCl-templated process. Controlled experiments demonstrate that the adoption of NaCl and appropriate ratio of NaCl and Pt precursor are indispensable for the formation of porous Pt nanosheets. Impressively, the cost-effective NaCl template can be recyclable through a simple recrystallization procedure, which may greatly reduce the synthetic cost. By virtue of their structural merits, including high porosity, 2D anisotropy and abundant defects, the resultant porous Pt nanosheets exhibit superior activity and enhanced stability towards the oxygen reduction reaction(ORR) compared to the commercial Pt black in alkaline medium. The present study not only offers a high-performance electrocatalyst for fuel cell devices, but also provides a new perspective toward the rational synthesis of 2D noble metal nanosheets with high porosity and diverse functionalities. | Chuang Fan Zihan Huang Xianyu Hu Zhaoping Shi Tianyang Shen Yawen Tang Xiaojun Wang Lin Xu | 2018 | Green Energy & Environment2018，3，4： | 1 |
| 6 | Evaluation of the immunosensitizing potential of chlorogenic acid using a popliteal lymph node assay in BALB/c mice显示文摘 | Zhaohua Liu Zhaoping Liu Yanqiu Shi | 2010 | Food and Chemical Toxicology2010，48，： | 1 |
| 7 | Oxygen-defects evolution to stimulate continuous capacity increase in Co-free Li-rich layered oxides显示文摘Though oxygen defects are associated with deteriorated structures and aggravated cycling performance in traditional layered cathodes,the role of oxygen defects is still ambiguous in Li-rich layered oxides due to the involvement of oxygen redox.Herein,a Co-free Li-rich layered oxide Li_(1.286)Ni_(0.071)Mn_(0.643)O_(2)has been prepared by a co-precipitation method to systematically investigate the undefined effects of the oxygen defects.A significant O_(2)release and the propagation of oxygen vacancies were detected by operando differential electrochemical mass spectroscopy(DEMS)and electron energy loss spectroscopy(EELS),respectively.Scanning transmission electron microscopy-high angle annular dark field(STEMHAADF)reveals the oxygen vacancies fusing to nanovoids and monitors a stepwise electrochemical activation process of the large Li_(2)MnO_(3)domain upon cycling.Combined with the quantitative analysis conducted by the energy dispersive spectrometer(EDS),existed nano-scale oxygen defects actually expose more surface to the electrolyte for facilitating the electrochemical activation and subsequently increasing available capacity.Overall,this work persuasively elucidates the function of oxygen defects on oxygen redox in Co-free Li-rich layered oxides. | Yibin Zhang Xiaohui Wen Zhepu Shi Bao Qiu Guoxin Chen Zhaoping Liu | 2023 | Journal of Energy Chemistry2023，，7： | 1 |
| 8 | Slurry-like hybrid electrolyte with high lithium-ion transference number for dendrite-free lithium metal anode显示文摘Lithium metal anode is regarded as the ultimate choice for next-generation energy storage systems,due to the lowest negative electrochemical potential and super high theoretical specific capacity.However,the growth of lithium dendrite during the cycling process is still one of the most critical bottlenecks for its application.In this work,a slurry-like hybrid electrolyte is proposed towards the application for lithium metal anode,which is composed of a liquid electrolyte part and a nanometric silane-Al2O3 particle part.The hybrid electrolyte shows high ionic conductivity(3.89×10-3 S cm-1 at 25℃)and lithium-ion transference number(0.88).Especially,the resistance of hybrid electrolyte decreases compared to that of liquid electrolyte,while the viscosity of hybrid electrolyte increases.It is demonstrated that the hybrid electrolyte can effectively suppress the growth of lithium dendrite.Stable cycling of Li/Li cells at a current density up to 1 mA cm-2 is possible.The hybrid electrolyte helps to uniform the lithium ion flux inside the battery and partly comes from the formation of a rigid and highly conductive hybrid interfacial layer on the surface of lithium metal.This work not only provides a fresh way to stabilize lithium metal anode but also sheds light on further research for electrolyte optimization and design of lithium metal battery system. | Hewei Xu Ying He Zibo Zhang Junli Shi Pingying Liu Ziqi Tian Kan Luo Xiaozhe Zhang Suzhe Liang Zhaoping Liu | 2020 | Journal of Energy Chemistry2020，29，9： | 1 |
| 9 | Evaluation of the immunosensitizing potential of chlorogenic acid using a popliteal lymph node assay in BALB/c mice显示文摘 | Liu Zhaohua Liu Zhaoping Shi Yanqiu | 2010 | Food and Chemical Toxicology2010，48，4： | 1 |
| 10 | Intrinsic spin shielding effect in platinum-rare-earth alloy boosts oxygen reduction activity显示文摘Oxygen reduction reactions(ORRs)involve a multistep proton-coupled electron process accompanied by the conversion of the apodictic spin configuration.Understanding the role of spin configurations of metals in the adsorption and desorption of oxygen intermediates during ORRs is critical for the design of efficient ORR catalysts.Herein,a platinum-rare-earth-metal-based alloy catalyst,Pt_(2)Gd,is introduced to reveal the role of spin configurations in the catalytic activity of materials.The catalyst exhibits a unique intrinsic spin reconfiguration because of interactions between the Gd-4f and Pt-5d orbitals.The adsorption and desorption of the oxygen species are optimized by modifying the spin symmetry and electronic structures of the material for increased ORR efficiency.The Pt_(2)Gd alloy exhibits a half-wave potential of 0.95 V and a superior mass activity of 1.5 A·mg Pt^(−1)in a 0.1 M HClO_(4)electrolyte,as well as higher durability than conventional Pt/C catalysts.Theoretical calculations have proven that the spin shielding effect of Gd pairs increases the spin symmetry of Pt-5d orbitals and adsorption preferences toward spin-polarized intermediates to facilitate ORR.This work clarifies the impact of modulating the intrinsic spin state of Pt through the interaction with the local high spin 4f orbital electrons in rare-earth metals,with the aim of boosting the spin-related oxygen reduction reaction,thus fundamentally contributing to the understanding of new descriptors that control ORR activity. | Siyuan Zhu Mingzi Sun Bingbao Mei Liting Yang Yuyi Chu Zhaoping Shi Jingsen Bai Xian Wang Zheng Jiang Changpeng Liu Bolong Huang Junjie Ge Wei Xing | 2023 | National Science Review2023，10，9： | 0 |
| 11 | Suppressing the lattice oxygen diffusion via high-entropy oxide construction towards stabilized acidic water oxidation显示文摘The scale-up deployment of ruthenium(Ru)-based oxygen evolution reaction(OER)electrocatalysts in proton exchange membrane water electrolysis(PEMWE)is greatly restricted by the poor stability.As the lattice-oxygen-mediated mechanism(LOM)has been identified as the major contributor to the fast performance degradation,impeding lattice oxygen diffusion to inhibit lattice oxygen participation is imperative,yet remains challenging due to the lack of efficient approaches.Herein,we strategically regulate the bonding nature of Ru–O towards suppressed LOM via Ru-based high-entropy oxide(HEO)construction.The lattice disorder in HEOs is believed to increase migration energy barrier of lattice oxygen.As a result,the screened Ti_(23)Nb_(9)Hf_(13)W_(12)Ru_(43)O_(x) exhibits 11.7 times slower lattice oxygen diffusion rate,84%reduction in LOM ratio,and 29 times lifespan extension compared with the state-of-the-art RuO_(2) catalyst.Our work opens up a feasible avenue to constructing stabilized Ru-based OER catalysts towards scalable application. | Jing Ni Zhaoping Shi Yibo Wang Jiahao Yang Hongxiang Wu Pengbo Wang Kai Li Meiling Xiao Changpeng Liu Wei Xing | 2024 | Nano Research2024，17，3： | 0 |
| 12 | ^(18)F-FDG PET/MR Imaging for Evaluating of Obstructive Jaundice:Chinese Expert Consensus显示文摘The cause of obstructive jaundice is usually complex which renders its differential diagnosis and lesion localization challenging in clinical practice.Integrated Positron Emission tomography/Magnetic Resonance(PET/MR)offers complementary information from PET and MR in the diagnosis of obstructive jaundice and is becoming widely adopted in clinical setting.While preserving its diagnostic accuracy,it is important to standardize and streamline the clinical scan protocol of PET/MR in evaluating obstructive jaundice.Based on literature review and experience of large number of clinical cases from the author group,this article reports an expert consensus on imaging protocol optimization and case interpretation template standardization. | Lifang PANG Yushen GU Zhi YANG Zhifang WU Wei FAN Xiaohua ZHU Jun ZHAO Changjiu ZHAO Xuemei WANG Yongju GAO Li HUO Yi MO Meiyun WANG Jie LU Lingzhi HU Zheng ZHANG Feng WANG Xuemei DU Yue CHEN Jianjun LIU Zhaoping CHENG Yunlong LOU Shuzhan YAO Rong XU Sijin LI Hongcheng SHI | 2022 | Clinical Cancer Bulletin2022，1，2： | 0 |
| 13 | Stabilizing high-efficiency iridium single atoms via lattice confinement for acidic oxygen evolution显示文摘Stable and efficient single atom catalysts(SACs)are highly desirable yet challenging in catalyzing acidic oxygen evolution reaction(OER).Herein,we report a novel iridium single atom catalyst structure,with atomic Ir doped in tetragonal PdO matrix(IrSAs-PdO)via a lattice-confined strategy.The optimized IrSAs-PdO-0.10 exhibited remarkable OER activity with an overpotential of 277 mV at 10 mA·cm^(-2) and long-term stability of 1000 h in 0.5 M H_(2)SO_(4).Furthermore,the turnover frequency attains 1.6 s^(-1) at an overpotential of 300 mV with a 24-fold increase in the intrinsic activity.The high activity originates from isolated iridium sites with low valence states and decreased Ir–O bonding covalency,and the excellent stability is a result of the effective confinement of iridium sites by Ir–O–Pd motifs.Moreover,we demonstrated for the first time that SACs have great potential in realizing ultralow loading of iridium(as low as microgram per square center meter level)in a practical water electrolyzer. | Yibo Wang Jiadong Jiang Zhaoping Shi Hongxiang Wu Jiahao Yang Pengbo Wang Shuai Hou Meiling Xiao Junjie Ge Changpeng Liu Wei Xing | 2024 | Nano Research2024，17，4： | 0 |
| 14 | Key role of electron accessibility at the noble metal-free catalytic interface in hydrogen evolution reaction显示文摘The reactant concentration at the catalytic interface holds the key to the activity of electrocatalytic hydrogen evolution reaction(HER),mainly referring to the capacity of adsorbing hydrogen and electron accessibility.With hydrogen adsorption free energy(ΔGH)as a reactivity descriptor,the volcano curve based on Sabatier principle is established to evaluate the hydrogen evolution activity of catalysts.However,the role of electron as reactant received insufficient attention,especially for noble metal-free compound catalysts with poor conductivity,leading to cognitive gap between electronic conductivity and apparent catalytic activity.Herein we successfully construct a series of catalyst models with gradient conductivities by regulating molybdenum disulfide(MoS_(2))electronic bandgap via a simple solvothermal method.We demonstrate that the conductivity of catalysts greatly affects the overall catalytic activity.We further elucidate the key role of intrinsic conductivity of catalyst towards water electrolysis,mainly concentrating on the electron transport from electrode to catalyst,the electron accumulation process at the catalyst layer,and the charge transfer progress from catalyst to reactant.Theoretical and experimental evidence demonstrates that,with the enhancement in electron accessibility at the catalytic interface,the dominant parameter governing overall HER activity gradually converts from electron accessibility to combination of electron accessibility and hydrogen adsorbing energy.Our results provide the insight from various perspective for developing noble metal-free catalysts in electrocatalysis beyond HER. | Dongchen Han Nanxing Gao Yuyi Chu Zhaoping Shi Ying Wang Junjie Ge Meiling Xiao Changpeng Liu Wei Xing | 2024 | Nano Research2024，17，4： | 0 |
| 15 | The decisive role of adsorbed OH^(*)in low‐potential CO electro‐oxidation on single‐atom catalytic sites显示文摘CO impurity-induced catalyst deactivation has long been one of the biggest challenges in proton-exchange membrane fuel cells,with the poisoning phenomenon mainly attributed to the overly strong adsorption on the catalytic site.Here,we present a mechanistic study that overturns this understanding by using Rh-based single-atom catalysis centers as model catalysts.We precisely modulated the chelation structure of the Rh catalyst by coordinating Rh with C or N atoms,and probed the reaction mechanism by surface-enhanced Raman spectroscopy.Direct spectroscopic evidence for intermediates indicates that the reactivity of adsorbed OH^(*),rather than the adsorption strength of CO^(*),dictates the CO electrocatalytic oxidation behavior.The RhN_(4)sites,which adsorb the OH^(*)intermediate more weakly than RhC4 sites,showed prominent CO oxidation activity that not only far exceeded the traditional Pt/C but also the RhC4 sites with similar CO adsorption strength.From this study,it is clear that a paradigm shift in future research should be considered to rationally design high-performance CO electro-oxidation reaction catalysts by sufficiently considering the water-related reaction intermediate during catalysis. | Yang Li Xian Wang Ying Wang Zhaoping Shi Yuqi Yang Tuo Zhao Zheng Jiang Changpeng Liu Wei Xing Junjie Ge | 2023 | Carbon Energy2023，5，9： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员