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A 3D porous WP2 nanosheets@carbon cloth flexible electrode for efficient electrocatalytic hydrogen evolution

Mingyu Pi, Xiaodeng Wang, Dingke Zhang, Shuxia Wang, Shijian Chen

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3,   Pages 425-432 doi: 10.1007/s11705-018-1726-7

Abstract:

Self-standing porous WP2 nanosheet arrays on carbon fiber cloth (WP2 NSs/CC)provides a way to design and fabricate efficient hydrogen evolution electrodes through 3D porous nano-arrays

Keywords： WP2     nanosheet arrays     hydrogen evolution electrocatalyst     flexible electrode    

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Recent progress of two-dimensional nanosheet membranes and composite membranes for separation applications

Wei Wang, Yanying Wei, Jiang Fan, Jiahao Cai, Zong Lu, Li Ding, Haihui Wang

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 793-819 doi: 10.1007/s11705-020-2016-8

Abstract: Two-dimensional (2D) materials have emerged as a class of promising materials to prepare high-performance 2D membranes for various separation applications. The precise control of the interlayer nanochannel/sub-nanochannel between nanosheets or the pore size of nanosheets within 2D membranes enables 2D membranes to achieve promising molecular sieving performance. To date, many 2D membranes with high permeability and high selectivity have been reported, exhibiting high separation performance. This review presents the development, progress, and recent breakthrough of different types of 2D membranes, including membranes based on porous and non-porous 2D nanosheets for various separations. Separation mechanism of 2D membranes and their fabrication methods are also reviewed. Last but not the least, challenges and future directions of 2D membranes for wide utilization are discussed in brief.

Keywords： membrane separation     2D membranes     2D materials     nanosheet    

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Engineering the grain boundary: a promising strategy to configure NiCoPO/NiCoP nanowire arrays for ultra-stable

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8,   Pages 1259-1267 doi: 10.1007/s11705-021-2132-0

Abstract: NiCoP4O12/NiCoP nanorod-like arrays with tunable grain boundary density and poresThe optimized NiCoP4O12/NiCoP arrays have a high specific capacitance of 507.810000 cycles, was achieved in an asymmetric cell assembled of the NiCoP4O12/NiCoP arrayswere higher than those of other work, demonstrating as-prepared NiCoP4O12/NiCoP arrays

Keywords： NiCo     array electrode     grain boundary     stability     supercapacitor    

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Erratum to: Polypyrrole@NiCo hybrid nanotube arrays as high performance electrocatalyst for hydrogen

Shenghua Ye, Gaoren Li

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 4,   Pages 845-845 doi: 10.1007/s11705-019-1879-z

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Nanosheet Chips Poised to Rescue Moore’s Law

Robert Pollie

Engineering 2021, Volume 7, Issue 12,   Pages 1655-1656 doi: 10.1016/j.eng.2021.11.008

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Tuning the electronic structure of NiCoP arrays through V doping for pH-universal hydrogen evolution

Yu Lin, Jinlei Wang, Duanlin Cao, Yaqiong Gong

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1134-1146 doi: 10.1007/s11705-020-2014-x

Abstract: The exploration of cost-effective, high-performance, and stable electrocatalysts for the hydrogen evolution reaction (HER) over wide pH range (0–14) is of paramount importance for future renewable energy conversion technologies. Regulation of electronic structure through doping vanadium atoms is a feasible construction strategy to enhance catalytic activities, electron transfer capability, and stability of the HER electrode. Herein, V-doped NiCoP nanosheets on carbon fiber paper (CFP) (denoted as V -NiCoP/CFP) were constructed by doping V modulation on NiCoP nanosheets on CFP and used for pH-universal HER. Benefiting from the abundant catalytic sites and optimized hydrogen binding thermodynamics, the resultant V -NiCoP/CFP demonstrates a significantly improved HER catalytic activity, requiring overpotentials of 46.5, 52.4, and 85.3 mV to reach a current density of 10 mA·cm in 1 mol·L KOH, 0.5 mol·L H SO , and 1 mol·L phosphate buffer solution (PBS) electrolytes, respectively. This proposed cation-doping strategy provides a new inspiration to rationally enhance or design new-type nonprecious metal-based, highly efficient, and pH-universal electrocatalysts for various energy conversion systems.

Keywords： hydrogen evolution reaction     transition metal phosphides     pH-universal     vanadium doping     carbon fiber paper    

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Nickel nanopore arrays as promising current collectors for constructing solid-state supercapacitors with

Huaping Zhao, Long Liu, Yaoguo Fang, Ranjith Vellacheri, Yong Lei

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3,   Pages 339-345 doi: 10.1007/s11705-018-1699-6

Abstract:

In this work, nickel nanopore arrays with a highly-oriented nanoporous structure inherited from porous

Keywords： supercapacitor     ultrahigh rate     metallic nanopore arrays     current collectors     PEDOT    

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Construction of NiCoO nanoflake arrays on cellulose-derived carbon nanofibers as a freestanding electrode

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 6,   Pages 691-703 doi: 10.1007/s11705-022-2268-6

Abstract: The NiCo2O4 nanoflake arrays are grown uniformly on the cellulose-based carbonThe as-prepared cellulose-based carbon nanofibers/NiCo2O4 nanoflake arrays are

Keywords： cellulose     carbon nanofibers     NiCo2O4     supercapacitors    

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Polypyrrole@NiCo hybrid nanotube arrays as high performance electrocatalyst for hydrogen evolution reaction

Shenghua Ye, Gaoren Li

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3,   Pages 473-480 doi: 10.1007/s11705-018-1724-9

Abstract:

The polypyrrole(PPy)@NiCo hybrid nanotube arrays have been successfully fabricated as a high performanceenhance the turnover frequency of catalysts, the electrocatalytic performance of PPy@NiCo hybrid nanotube arrays

Keywords： NiCo alloy     polypyrrole     hybrid nanotube     electrocatalyst     hydrogen evolution reaction    

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Durable and recyclable BiOBr/silk fibroin-cellulose acetate composite film for efficient photodegradation of dyes under visible light irradiation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1765-1775 doi: 10.1007/s11705-023-2323-y

Abstract: A stable and recyclable of BiOBr/silk fibroin-cellulose acetate composite film was prepared by blending-wet phase transformation and in situ precipitate technology. The cellulose acetate film modified by silk fibroin formed a finger-shaped porous structure, which provided a large space for the uniform growth of BiOBr nanosheets and facilitated the shuttle flow of dyes in film. The morphology, phase structure, and optical properties of the composite films were characterized using various techniques, and their photocatalytic performance for dye wastewater was evaluated under visible light irradiation. Results showed that the BiOBr/SF-CA composite film exhibited efficient photocatalytic activity with 99.9% of rhodamine B degradation rate. Moreover, the composite film maintained high catalytic stability because Bi as the active species deposited on the film showed almost no loss. Finally, the possible photocatalytic mechanisms in the BiOBr/SF-CA composite film were speculated through radical-trapping experiments and electron spin resonance testing.

Keywords： BiOBr nanosheet     cellulose acetate     silk fibroin     photocatalytic degradation     dye wastewater    

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Decoration of vertically aligned TiO

Heba ALI, N. ISMAIL, M. S. AMIN, Mohamed MEKEWI

Frontiers in Energy 2018, Volume 12, Issue 2,   Pages 249-258 doi: 10.1007/s11708-018-0547-1

Abstract: WO decorated photoelectrodes of titanium nanotube arrays (W-oxide TNTAs) were synthesized via a two-step

Keywords： titanium dioxide nanotube arrays     potentiostaticanodization     electrodeposition method     tungsten oxide     photoelectrochemical    

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Noble-metal-free cobalt hydroxide nanosheets for efficient electrocatalytic oxidation

Jie Lan, Daizong Qi, Jie Song, Peng Liu, Yi Liu, Yun-Xiang Pan

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 948-955 doi: 10.1007/s11705-020-1920-2

Abstract: Cobalt hydroxide has been emerging as a promising catalyst for the electrocatalytic oxidation reactions, including the oxygen evolution reaction (OER) and glucose oxidation reaction (GOR). Herein, we prepared cobalt hydroxide nanoparticles (CoHP) and cobalt hydroxide nanosheets (CoHS) on nickel foam. In the electrocatalytic OER, CoHS shows an overpotential of 306 mV at a current density of 10 mA·cm . This is enhanced as compared with that of CoHP (367 mV at 10 mA·cm ). In addition, CoHS also exhibits an improved performance in the electrocatalytic GOR. The improved electrocatalytic performance of CoHS could be due to the higher ability of the two-dimensional nanosheets on CoHS in electron transfer. These results are useful for fabricating efficient catalysts for electrocatalytic oxidation reactions.

Keywords： electrocatalytic oxidation     cobalt hydroxide     nanosheet     water     glucose    

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Development and applications of functional gene microarrays in the analysis of the functional diversity, composition, and structure of microbial communities

Zhili HE, Joy D. VAN NOSTRAND, Ye DENG, Jizhong ZHOU

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 1,   Pages 1-20 doi: 10.1007/s11783-011-0301-y

Abstract: Functional gene arrays (FGAs) are a special type of microarrays containing probes for key genes involved

Keywords： functional gene arrays (FGAs)     GeoChip     microbial communities     functional diversity/composition/structure    

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Decoupling methods of MIMO antenna arrays for 5G applications: a review Review Articles

Xiao-xi ZHANG, Ai-di REN, Ying LIU

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 1,   Pages 62-71 doi: 10.1631/FITEE.1900466

Abstract: Multiple-input multiple-output (MIMO) technique is a key technique for communication in the future. It can effectively enhance channel capacity. For future fifth-generation (5G) terminals, it is still a challenging task to realize desirable isolation within a compact size. To achieve an acceptable isolation level, many decoupling methods have been developed. We review the most recent research on decoupling methods, including the employment of external decoupling structures, orthogonal modes, and reduction of ground effect, and discuss the development trends of the MIMO array in 5G smartphones.

Keywords： MIMO array     5G smartphone     Decoupling methods    

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Micro-optical fabrication by ultraprecision diamond machining and precision molding

Hui LI, Likai LI, Neil J. NAPLES, Jeffrey W. ROBLEE, Allen Y. YI

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 2,   Pages 181-192 doi: 10.1007/s11465-017-0444-z

Abstract: Today optical molds, including freeform surfaces and microlens arrays, are routinely diamond machined

Keywords： ultraprecision machining     slow tool servo     fast tool servo     compression molding     injection molding     microlens arrays    

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Title Author Date Type Operation

A 3D porous WP2 nanosheets@carbon cloth flexible electrode for efficient electrocatalytic hydrogen evolution

Mingyu Pi, Xiaodeng Wang, Dingke Zhang, Shuxia Wang, Shijian Chen

Journal Article

Recent progress of two-dimensional nanosheet membranes and composite membranes for separation applications

Wei Wang, Yanying Wei, Jiang Fan, Jiahao Cai, Zong Lu, Li Ding, Haihui Wang

Journal Article

Engineering the grain boundary: a promising strategy to configure NiCoPO/NiCoP nanowire arrays for ultra-stable

Journal Article

Erratum to: Polypyrrole@NiCo hybrid nanotube arrays as high performance electrocatalyst for hydrogen

Shenghua Ye, Gaoren Li

Journal Article

Nanosheet Chips Poised to Rescue Moore’s Law

Robert Pollie

Journal Article

Tuning the electronic structure of NiCoP arrays through V doping for pH-universal hydrogen evolution

Yu Lin, Jinlei Wang, Duanlin Cao, Yaqiong Gong

Journal Article

Nickel nanopore arrays as promising current collectors for constructing solid-state supercapacitors with

Huaping Zhao, Long Liu, Yaoguo Fang, Ranjith Vellacheri, Yong Lei

Journal Article

Construction of NiCoO nanoflake arrays on cellulose-derived carbon nanofibers as a freestanding electrode

Journal Article

Polypyrrole@NiCo hybrid nanotube arrays as high performance electrocatalyst for hydrogen evolution reaction

Shenghua Ye, Gaoren Li

Journal Article

Durable and recyclable BiOBr/silk fibroin-cellulose acetate composite film for efficient photodegradation of dyes under visible light irradiation

Journal Article

Decoration of vertically aligned TiO

Heba ALI, N. ISMAIL, M. S. AMIN, Mohamed MEKEWI

Journal Article

Noble-metal-free cobalt hydroxide nanosheets for efficient electrocatalytic oxidation

Jie Lan, Daizong Qi, Jie Song, Peng Liu, Yi Liu, Yun-Xiang Pan

Journal Article

Development and applications of functional gene microarrays in the analysis of the functional diversity, composition, and structure of microbial communities

Zhili HE, Joy D. VAN NOSTRAND, Ye DENG, Jizhong ZHOU

Journal Article

Decoupling methods of MIMO antenna arrays for 5G applications: a review

Xiao-xi ZHANG, Ai-di REN, Ying LIU

Journal Article

Micro-optical fabrication by ultraprecision diamond machining and precision molding

Hui LI, Likai LI, Neil J. NAPLES, Jeffrey W. ROBLEE, Allen Y. YI

Journal Article