|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Photoanode Activity of ZnO Nanotube Based Dye-Sensitized Solar Cells显示文摘Vertical ZnO nanotube (ZNT) arrays were synthesized onto an indium doped tin oxide (ITO) glass substrate by a simple electrochemical deposition technique followed by a selective etching process. Scanning electron microscopy (SEM) showed formation of well-faceted hexagonal ZNT arrays spreading uniformly over a largearea. X-ray diffraction (XRD) of ZNT layer showed substantially higher intensity for the (0002) diffractionpeak, indicating that the ZnO crystallites were well aligned with their c-axis. Profilometer measurements ofthe ZNT layer showed an average thickness of ~7 μm. Diameter size distribution (DSD) analysis showedthat ZNTs exhibited a narrow diameter size distribution in the range of 65–120 nm and centered at ~75nm. The photoluminescence (PL) spectrum measurement showed violet and blue luminescence peaks thatwere centered at 410 and 480 nm, respectively, indicating the presence of internal defects. Ultra-violet (UV)spectroscopy showed major absorbance peak at ~348 nm, exhibiting an increase in energy gap value of 3.4 eV.By employing the formed ZNTs as the photo-anode for a dye-sensitized solar cell (DSSC), a full-sun conversion efficiency of 1.01% was achieved with a fill factor of 54%. Quantum efficiency studies showed the maximumof incident photon-to-electron conversion efficiency in a visible region located at 520–550 nm range. | R. Ranjusha P. Lekha K.R.V. Subramanian V. Nair Shantikumar A. Balakrishnan | 2011 | Journal of Materials Science & Technology2011，27，11： | 4 |
| 2 | Synthesis of Co3O4 Nanoparticles Wrapped Within Full Carbon Matrix as an Anode Material for Lithium Ion Batteries显示文摘A facile polyol-assisted pyro-synthesis method was used to synthesize Co_3O_4 nanoparticles embedded into carbon matrix without using any conventional carbon source. The surface analysis by scanning electron microscopy showed that the Co_3O_4 nanoparticles(~20 ± 5 nm) are tightly enwrapped within the carbon matrix. CHN analysis determined the carbon content was only 0.11% in the final annealed sample. The Co_3O_4@carbon exhibited high capacities and excellent cycling performance as an anode at various current rates(such as 914.4 and 515.5 mAh g^(-1) at 0.25 and1.0 C, respectively, after 50 cycles; 318.2 mAh g^(-1) at a high current rate of 5.0 C after 25 cycles). This superior electrochemical performance of the electrode can be attributed to the various aspects, such as,(1) the existence of carbon matrix, which acts as a flexible buffer to accommodate the volume changes during Li^+ion insertion/deinsertion and facilitates the fast Li^+and electron transfer and(2) the anchoring of Co_3O_4 nanoparticles within the carbon matrix prevents particles agglomeration. | Subhalaxmi Mohapatra Shantikumar V.Nair Alok Kumar Rai | 2018 | Acta Metallurgica Sinica(English Letters)2018，31，2： | 3 |
| 3 | Surface-Engineered Li4Ti5O12 Nanostructures for High-Power Li-Ion Batteries显示文摘Materials with high-power charge–discharge capabilities are of interest to overcome the power limitations of conventional Li-ion batteries.In this study,a unique solvothermal synthesis of Li4Ti5O12 nanoparticles is proposed by using an off-stoichiometric precursor ratio.A Li-deficient off-stoichiometry leads to the coexistence of phaseseparated crystalline nanoparticles of Li4Ti5O12 and TiO2 exhibiting reasonable high-rate performances.However,after the solvothermal process,an extended aging of the hydrolyzed solution leads to the formation of a Li4Ti5O12 nanoplate-like structure with a self-assembled disordered surface layer without crystalline TiO2.The Li4Ti5O12 nanoplates with the disordered surface layer deliver ultrahighrate performances for both charging and discharging in the range of 50–300C and reversible capacities of 156 and 113 mAh g−1 at these two rates,respectively.Furthermore,the electrode exhibits an ultrahigh-charging-rate capability up to 1200C(60 mAh g−1;discharge limited to 100C).Unlike previously reported high-rate half cells,we demonstrate a high-power Li-ion battery by coupling Li4Ti5O12 with a high-rate LiMn2O4 cathode.The full cell exhibits ultrafast charging/discharging for 140 and 12 s while retaining 97 and 66% of the anode theoretical capacity,respectively.Room-(25℃),low-(−10℃),and high-(55℃)temperature cycling data show the wide temperature operation range of the cell at a high rate of 100C. | Binitha Gangaja Shantikumar Nair Dhamodaran Santhanagopalan | 2020 | Nano-Micro Letters2020，12，2： | 2 |
| 4 | Elevated C-reactive protein and long-term mortality after ischaemic stroke : relationship with markers of endothelial cell and platelet activation 显示文摘 | Shantikumar S Grant PJ Catto A J | 2009 | Stroke2009，40，3： | 1 |
| 5 | Diabetes and the ab- dominal aortic aneurysm显示文摘 | Shantikumar S Ajjan R Porter KE | 2010 | Eur J Vasc Endovasc Surg2010，39，： | 1 |
| 6 | Role of microRNAs in diabetes and its cardiovascular complications显示文摘 | Shantikumar S Caporali A Emanueli C | 2012 | Cardiovasc Res2012，93，4： | 1 |
| 7 | Elevated C -reactive protein and long - term mortality after ischaemic stroke relationship with markers of endothelial cell and platelet activation 显示文摘 | Shantikumar S Grant PJ Catto A J | 2009 | Stroke2009，40，3： | 1 |
| 8 | Elevated C_Reactive Protein and Long_Term Mortality After Ischaemic Stroke:Relationship With Markers of Endothelial Cell and Platelet Activation显示文摘 | Saran Shantikumar Peter J Grant Andrew J Catto | 2009 | Stroke2009，40，3： | 1 |
| 9 | Chivate and Vinay A,New Rectal Construction After Abdominoperineal Resection for Carcinoma Rectum显示文摘 | Shantikumar D | | 0，，33： | 1 |
| 10 | Elevated C reac- tive protein and long terra mortality after ischaemic stroke re lationship with markers of endothelial cell and platelet activa tion 显示文摘 | Shantikumar S Grant PJ Catto AJ | 2009 | Stroke2009，40，： | 1 |
| 11 | Role of microR- NAs in diabetes and its cardiovascular complications 显示文摘 | Shantikumar S Caporali A Emanueli C | 2012 | Cardiovasc Research2012，93，4： | 1 |
| 12 | Endovascular Aneu- rysm Repair in Nonagenarians : A Systematic Review 显示文摘 | Wigley J Shantikumar S Hameed W | 2015 | Ann Vase Surg2015，29，2： | 1 |
| 13 | Elevated C-reactive protein and long-term mortality after ischaemic stroke: relationship with markers of endothelial cell and platelet activation 显示文摘 | Shantikumar S Grant P J Catto A J | 2009 | Stroke2009，40，3： | 1 |
| 14 | Conducting polymer PEDOT:PSS coated Co_(3)O_(4) nanoparticles as the anode for sodium-ion battery applications显示文摘Metal oxides are considered as potential anodes for sodium-ion batteries(SIBs).Nevertheless,they suffer from poor cycling and rate capability.Here,we investigate conductive polymer coating on Co_(3)O_(4)nanoparticles varying with different percentages.X-ray diffraction,electron microscopy and surface chemical analysis were adopted to analyze coated and uncoated Co_(3)O_(4)nanoparticles.Conducting polymer,poly(3,4-ethylene dioxythiophene)polystyrene sulfonate(PEDOT:PSS),has been utilized for coating.Improved specific capacity and rate capability for an optimal coating of 0.5 wt.%were observed.The 0.5 wt.%coated sample outperformed the uncoated one in terms of capacity,rate capability and coulombic efficiency.It delivered a reversible capacity of 561 mAh·g^(−1)at 100 mA·g^(−1)and maintained a capacity of 318 mAh·g^(−1)at a high rate of 1 A·g^(−1).Increasing the PEDOT:PSS coating percentage led to lower performance due to the thicker coating induced kinetic issues.Ex-situ analysis of the 0.5 wt.%coated sample after 100 cycles at 1 A·g^(−1)was characterized for performance correlation.Such a simple,cost-effective and wet-chemical approach has not been employed before for Co_(3)O_(4)as the SIB anode. | Kevin VARGHESE Dona Susan BAJI Shantikumar NAIR Dhamodaran SANTHANAGOPALAN | 2022 | Frontiers of Materials Science2022，16，2： | 1 |
| 15 | Elevated C-reactive protein and long-term mortality after ischaemic stroke: relationship with markers of endothelial cell and platelet activation显示文摘 | SHANTIKUMAR S GRANT P J CATTO A J | 2009 | Stroke2009，40，3： | 1 |
| 16 | Diabetes and the Abdominal Aortic Aneurysm显示文摘 | S. Shantikumar R. Ajjan K.E. Porter D.J.A. Scott | 2009 | European Journal of Vascular & Endovascular Surgery2009，，： | 1 |
| 17 | Elevated C-reactive protein and long-term mortality after ischaemie stroke: relationship with markers of endothelial cell and platelet activation显示文摘 | Shantikumar S Grant P J Catto A J | 2009 | Stroke2009，40，3： | 1 |
| 18 | Facile fabrication of TiO_2 nanoparticle–TiO_2 nanofiber composites by co-electrospinning–electrospraying for dye-sensitized solar cells显示文摘We report a facile method for the fabrication of TiO_2 nanofiber–nanoparticle composite(FP) via. simultaneous electrospraying and electrospinning for dye-sensitized solar cell(DSC) applications. The loading of nanoparticles on the fibers is controlled by varying their feed rates during electrospinning. The FP composites having three different particle loading are prepared by the methodology and the FP with the highest particle loading(denoted as FP-3 in the manuscript) showed the best overall efficiency of 9.15% in comparison to the other compositions of the FP(FP-2, 8.15% and FP-1, 7.51%, respectively) and nanofibers(F) and nanoparticles(P) separately(7.21 and 7.81, respectively). All the material systems are characterized by spectroscopy, microscopy, surface area measurements and the devices are characterized by current–voltage(I-V),incident photon-to-current conversion efficiency(IPCE), electrochemical impedance measurements, etc. I-V,dye-loading and reflectance measurements throw light on the overall performance of the DSC devices. | G.S.Anjusree T.G.Deepak Shantikumar V Nair A.Sreekumaran Nair | 2015 | Journal of Energy Chemistry2015，24，6： | 1 |
| 19 | Elevated C-reactive protein and long-term mortality after ischaemic stroke: relationship with markers of endothelial cell and platelet activation显示文摘 | Shantikumar S Grant PJ Catto AJ | 2009 | Stroke2009，40，3： | 1 |
| 20 | Transient expression of SbDhr2 and MeHNL in Gossypium hirsutum for herbivore deterrence assay with Spodoptera litura显示文摘Background:Spodoptera litura(Lepidoptera:Noctuidae),commonly known as tobacco cutworm or cotton leafworm,is a polyphagous pest which causes considerable damage to cotton(Gossypium hirsutum)and other crops.Herbivore-induced defence response is activated in plants against chewing pests,in which plant secondary metabolites play an important role.Dhurrinase2(SbDhr2),a cyanogenicβ-glucosidase from Sorghum bicolor,is the key enzyme responsible for the hydrolysis of dhurrin(cyanogenicβ-glucosidic substrate)to phydroxymandelonitrile.Hydroxynitrile lyase(Me HNL)from Mannihot esculanta catalyses the dissociation of cyanohydrins to hydrogen cyanide and corresponding carbonyl compound,both enzymes play a pivotal role in plant defence mechanism.Results:SbDhr2 and Me HNL genes were expressed individually and co-expressed transiently in cotton leaves.We examined the feeding response of S.litura to leaves in the choice assay.The S.litura population used in this study showed better feeding deterrence to leaves co-expressing both genes compared with the expression of an individual gene.Conclusion:Our results suggest that co-expression of SbDhr2 and Me HNL genes in cotton leaves demonstrate feeding deterrence to S.litura.Engineering cyanogenic pathway in aerial parts of cotton would be an additional defence strategy against generalist pests and can be enhanced against specialist pests. | MAHAJAN Chavi NASER Rafiuddin GUPTA Shantikumar | 2020 | Journal of Cotton Research2020，3，1： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员