Current issue - Nano Research

Strengthen metal-oxygen covalency of CoFe-layered double hydroxide for efficient mild oxygen evolution

Dazhong Zhong^1,§, Tan Li^2,§, Dong Wang¹, Lina Li³, Jiancheng Wang⁴, Genyan Hao¹, Guang Liu¹, Qiang Zhao¹ (✉), and Jinping Li^1,4 (✉)

Partially oxidized CoFe-layered double hydroxide with enhanced metal-oxygen (M-O) covalency is prepared. It shifts the oxygen evolution reaction (OER) mechanism to the lattice oxygen oxidation mechanism and also promotes the rate-limiting deprotonation, providing superior OER performance.

https://doi.org/10.1007/s12274-021-3451-7

2022, 15(1): 162–169

Published: 24 April 2021

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High-performance flexible self-powered strain sensor based on carbon nanotube/ZnSe/CoSe₂ nanocomposite film electrodes

Qiufan Wang¹, Jiaheng Liu¹, Xuan Ran¹, Daohong Zhang¹ (✉), Guozhen Shen² (✉), and Menghe Miao3

A highly flexible and wearable self-powered sensor system consisting of a high sensitivity rGO-based sensor laminated with a stretchable ZnSe/CoSe₂//ECNT film asymmetric supercapacitor (ASC) (ECNT: electrochemically activated carbon nanotube film). The unique sensor can be powered by the ASC to detect various human motions under strains up to 150%.

https://doi.org/10.1007/s12274-021-3453-5

2022, 15(1): 170–178

Published: 17 April 2021

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A new class of luminescent nanoprobes based on main-group Sb³⁺ emitters

Chunguang Zhang^1,2, Meiran Zhang¹, Wei Zheng^1,2,3 (✉), Jiaojiao Wei¹, Shiteng Wang¹, Ping Huang^1,2,3, Xingwen Cheng¹, Tao Dai¹, Zhuo Chen¹, and Xueyuan Chen^1,2,3 (✉)

A new class of luminescent nanoprobe based on main-group Sb³⁺- doped CaS nanocrystals was developed and explored for targeted cancer cell imaging and zebrafish imaging. The optical properties and excited-state dynamics of Sb³⁺ emitters in CaS nanocrystals were systematically investigated by means of temperature-dependent steady-state and transient photoluminescence spectroscopies.

https://doi.org/10.1007/s12274-021-3454-4

2022, 15(1): 179–185

Published: 03 June 2021

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Improving the intrinsic electronic conductivity of NiMoO₄ anodes by phosphorous doping for high lithium storage

Luchao Yue^1,2, Chaoqun Ma³, Shihai Yan³, Zhenguo Wu¹, Wenxi Zhao², Qian Liu² (✉), Yonglan Luo², Benhe Zhong¹, Fang Zhang⁴, Yang Liu⁵, Abdulmohsen Ali Alshehri⁶, Khalid Ahmed Alzahrani⁶, Xiaodong Guo¹ (✉), and Xuping Sun² (✉)

Phosphorus was employed as an effective dopant to improve the electronic conductivity and kinetics reaction of NiMoO₄ as an anode for lithium ion batteries. Benefiting from the phosphorus doping, the rate capability of NiMoO₄ is enlarged two folds at a high current density (2,000 mA·g⁻¹).

https://doi.org/10.1007/s12274-021-3455-3

2022, 15(1): 186–194

Published: 24 April 2021

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Graphdiyene enables ultrafine Cu nanoparticles to selectively reduce CO₂ to C₂₊ products

Yong-Bin Chang, Chao Zhang, Xiu-Li Lu, Wen Zhang (✉), and Tong-Bu Lu (✉)

The overly strong binding of intermediates on small-sized Cu nanoparticles is relaxed, which enables ultrafine Cu nanoparticles to selectively reduce CO₂ to C₂₊ products.

https://doi.org/10.1007/s12274-021-3456-2

2022, 15(1): 195–201

Published: 23 April 2021

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Bridging localized electron states of pyrite-type CoS₂ cocatalyst for activated solar H₂ evolution

Hengming Huang^1,2, Chen Xue³, Zhenggang Fang¹, Zhiliang Wang², Bin Luo², Menglong Sun¹, Ling Zhou¹, Kan Hu¹, Jiahui Kou¹ (✉), Lianzhou Wang² (✉), and Chunhua Lu¹ (✉)

CoS₂ nanocrystals were coupled with CdS nanorods to construct a composite catalyst for solar H₂ evolution reaction (HER). By electron delocalization modulation, the anion-hybridized CoS₂|P shows significant improvement on solar HER due to the reduced energy barrier and suppressed reverse reaction.

https://doi.org/10.1007/s12274-021-3457-1

2022, 15(1): 202–208

Published: 21 April 2021

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Theoretical insights into strong intrinsic piezoelectricity of bluephosphorus-like group-IV monochalcogenides

Yuxin Dai, Xiaoli Zhang, Yu Cui, Mengyuan Li, Yao Luo, Fan Jiang, Renqiang Zhao, and Yucheng Huang (✉)

Density functional theory calculations were performed to predict the piezoelectric coefficients of the blue-phosphorus-like group-IV monochalcogenides.

https://doi.org/10.1007/s12274-021-3460-6

2022, 15(1): 209–216

Published: 19 April 2021

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FeSb@N-doped carbon quantum dots anchored in 3D porous N-doped carbon with pseudocapacitance effect enabling fast and ultrastable potassium storage

Zhihui Li¹, Qingmeng Gan², Yifan Zhang¹, Jing Hu², Peng Liu¹ (✉), Changhong Xu¹, Xibing Wu¹, Yilin Ge¹, Feng Wang¹, Qingrong Yao¹, Zhouguang Lu² (✉), and Jianqiu Deng¹ (✉)

Growing FeSb quantum dots on three-dimensional (3D) porous carbon: FeSb@N-doped carbon quantum dots anchored in 3D porous N-doped carbon demonstrates promising electrochemical performance as anode material for potassium-ion batteries.

https://doi.org/10.1007/s12274-021-3462-4

2022, 15(1): 217–224

Published: 06 April 2021

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Graphene foam resonators: Fabrication and characterization

Yahav Ben-Shimon, Siva K. Reddy, and Assaf Ya'akobovitz (✉)

We present here the first-ever miniaturized graphene foam-based resonator. We developed a simple yet reliable fabrication process, in which graphene foam is synthesized and assembled on a cavity to form suspended devices and then we electrostatically excited them. We observed significant energy dissipation and we investigated the influence of temperature on the dynamic operation. Finally, we observed a mode-coupling of a resonance mode and a mode having twice its frequency.

https://doi.org/10.1007/s12274-021-3463-3

2022, 15(1): 225–229

Published: 20 May 2021

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Molten-LiCl induced thermochemical prelithiation of SiO_x: Regulating the active Si/O ratio for high initial Coulombic efficiency

Yang Li¹, Yong Qian², Jie Zhou¹, Ning Lin¹ (✉), and Yitai Qian^1,2 (✉)

A molten-salt-induced thermochemical prelithiated approach for regulating active Si/O ratio of SiO_x and thus enhancing initial Coulombic efficiency (ICE) is introduced, which integrates the coating of LiNH₂ in Li/NH₃ solution and heat treatment of pre-synthesized LiNH₂-coated SiO_x in molten-LiCl.

https://doi.org/10.1007/s12274-021-3464-2

2022, 15(1): 230–237

Published: 24 April 2021

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