Volume 14

Issue 03,2021

(54 articles)

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De novo synthesis of bifunctional conjugated microporous polymers for synergistic coordination mediated uranium entrapment

Boxuan Yu1,2,3,§, Lei Zhang1,4,§, Gang Ye1,5 (✉), Qingzhi Liu4,6, Jiongli Li2,3, Xudong Wang2,3, Jing Chen1,5, Shengming Xu1,5 (✉), and Shengqian Ma4,† (✉)

A novel class of bifunctional conjugated microporous polymers (CMPs) exhibit efficient uranium entrapment via synergistic-effect involved coordination.
https://doi.org/10.1007/s12274-020-3217-7
2021, 14(3): 788–796
Published: 20 November 2020
Article Views:155 Full article PDF cite this ariticle
LiYF4:Yb/LiYF4 and LiYF4:Yb,Er/LiYF4 core/shell nanocrystals with luminescence decay times similar to YLF laser crystals and the upconversion quantum yield of the Yb,Er doped nanocrystals

Frederike Carl1, Leonie Birk1, Bettina Grauel2, Monica Pons2, Christian Würth2, Ute Resch-Genger2 (✉), and Markus Haase1 (✉)

Large single crystals of lanthanide-doped LiYF4 are well-known solid-state laser materials. A new method to grow a shell of LiYF4 allows the synthesis of ~ 40 nm LiYF4:Yb/LiYF4 and LiYF4:Yb,Er/ LiYF4 core/shell nanocrystals with luminescence decay times of the Yb3+ and Er3+ ions similar to those of the corresponding laser crystals. Core/shell particles doped with 18% Yb3+ and 2% Er3+ display upconversion luminescence (UCL) with an excitation power density (P)-dependent quantum yield of up to 1.25% at P of 180 W·cm−2.
https://doi.org/10.1007/s12274-020-3116-y
2021, 14(3): 797–806
Published: 16 October 2020
Article Views:30 Full article PDF cite this ariticle
Selective CO2 conversion tuned by periodicities in Au8n + 4(TBBT)4n + 8 nanoclusters

Dan Yang1,§, Wei Pei2,§, Yuying Zhang1, Weigang Hu1, Xiao Cai1, Yongnan Sun1, Shuohao Li1, Xinglian Cheng1, Si Zhou2 (✉), Jijun Zhao2, Yan Zhu1, Weiping Ding1, and Xu Liu1 (✉)

Selective conversion of CO2 can be enabled by periodicities in the Au8n + 4(TBBT)4n + 8 (n = 3–6, TBBT = 4-tert-butyl-benzenethiolate) nanoclusters: Methanol, formic acid, ethanol, and ethanol can be respectively obtained on the Au28(TBBT)20, Au36(TBBT)24, Au44(TBBT)28, and Au52(TBBT)32.
https://doi.org/10.1007/s12274-020-3117-x
2021, 14(3): 807–813
Published: 23 October 2020
Article Views:68 Full article PDF cite this ariticle
Insights into the stable and fast lithium storage performance of oxygen-deficient LiV3O8 nanosheets

Huanqiao Song1,2 (✉), Feng Liu1, and Mingsheng Luo1,2 (✉)

Four LiV3O8 (LVO) nanosheets with different V4+ and oxygen vacancy contents and positions were synthesized. Based on the analysis of the effects of V4+ and oxygen vacancies on the electrochemical properties of LVO, the reasons why oxygen-deficient LVO nanosheets as cathode material of lithium ion batteries have high stability and rate capability were proposed.
https://doi.org/10.1007/s12274-020-3118-9
2021, 14(3): 814–822
Published: 14 October 2020
Article Views:32 Full article PDF cite this ariticle
Visualization of the electronic phase separation in superconducting KxFe2−ySe2

Yujie Chen1, Juan Jiang2,3, Haifeng Yang4, Pavel Dudin5, Alexey Barinov6, Zhongkai Liu4,7, Haihu Wen8, Lexian Yang1,9 (✉), and Yulin Chen1,2,4,7 (✉)

High-resolution spatial- and angle-resolved photoemission spectroscopy (micro-ARPES) experiments reveal the intrinsic electronic structures of both superconducting and insulating phases in KxFe2-ySe2.
https://doi.org/10.1007/s12274-020-3119-8
2021, 14(3): 823–828
Published: 19 October 2020
Article Views:80 Full article PDF cite this ariticle
Heat dissipation in graphene foams

Yaniv Cohen, Siva K.Reddy, and Assaf Ya'akobovitz (✉)

We investigate the heat dissipation characteristics of graphene foam devices. While their convective areas are comparable to that of bulk materials, their coefficient of convection is several orders of magnitude higher than that of metals. In addition, due to negligible temperature-induced morphological changes, these devices exhibited reproducible thermal behavior.
https://doi.org/10.1007/s12274-020-3120-2
2021, 14(3): 829–833
Published: 31 October 2020
Article Views:34 Full article PDF cite this ariticle
Vasarely painting at the nanoscale on sapphire crystals

Caroline Matringe1, Elsa Thune1, Rémy Cavalotti1, Ahmad Fakih1, Stephan Arnaud2, Nils Blanc2, Nathalie Boudet2, Alessandro Coati3, Yves Garreau3,4, David Babonneau5, and René Guinebretière1 (*)

We present in this manuscript a quantitative description of what we call “nanoscaled Vasarely surfaces” appearing after self-ordering of sapphire vicinal surfaces. Such two-dimensional (2D)-periodic surface organizations are obtained through a very simple way.
https://doi.org/10.1007/s12274-020-2888-4
2020, 13(9): 2512–2516
Published: 3 July 2020
Article Views:52 Full article PDF cite this ariticle
Large valley-polarized state in single-layer NbX2 (X = S, Se): Theoretical prediction

Yanmei Zang, Yandong Ma (✉), Rui Peng, Hao Wang, Baibiao Huang, and Ying Dai (✉)

Spontaneuos valley polarization ocurrs in experimentally synthesizable single-layer NbX2 (X = S, Se).
https://doi.org/10.1007/s12274-020-3121-1
2021, 14(3): 834–839
Published: 17 October 2020
Article Views:31 Full article PDF cite this ariticle
Rapid thin-layer WS2 detection based on monochromatic illumination photographs

Xiangmin Hu, Cuicui Qiu, and Dameng Liu (✉)

After developing a layer-number identification method based on optical contrast study with monochromatic illumination, an image recognition algorithm was designed to detect thin-layer WS2 samples.
https://doi.org/10.1007/s12274-020-3122-0
2021, 14(3): 840–845
Published: 21 October 2020
Article Views:68 Full article PDF cite this ariticle
Self-targeting visualizable hyaluronate nanogel for synchronized intracellular release of doxorubicin and cisplatin in combating multidrug-resistant breast cancer

Wen Ma1,§, Qiling Chen1,§, Weiguo Xu2,§, Meng Yu1, Yuanyuan Yang1, Binhua Zou1, Yu Shrike Zhang3 (✉), Jianxun Ding2 (✉), and Zhiqiang Yu1 (✉)

A self-targeting hyaluronate nanogel (CDDPHANG/DOX) is developed to reverse drug resistance through the synchronizing pharmacokinetics, enhancing intratumoral accumulation, and intracellular release of topoisomerase II inhibitor doxorubicin (DOX) and DNA-crosslinking agent cisplatin (CDDP), which demonstrates improved antitumor efficacy towards drug-resistant MCF-7/ADR breast cancer along with the visualization of fluorescence imaging of DOX and micro-computed tomography (micro-CT) imaging of CDDP.
https://doi.org/10.1007/s12274-020-3124-y
2021, 14(3): 846–857
Published: 23 November 2020
Article Views:40 Full article PDF cite this ariticle