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Journal Article 11

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Capacitive deionization 2

Desalination 2

Activated carbon coated (ACC) 1

B/N co-doping 1

Bias drift 1

Biochar 1

Capacitive deionization (CDI) 1

Capacitor 1

Carbon nanotube 1

Closed-loop MEMS accelerometer 1

Conductive membrane 1

Desalination performance 1

Differential capacitive structure 1

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Electrochemical precipitation 1

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Flow electrode capacitive deionization 1

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Materials recovery 1

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A novel flow electrode capacitive deionization device with spindle-shaped desalting chamber

Frontiers of Environmental Science & Engineering 2023, Volume 18, Issue 4, doi: 10.1007/s11783-024-1800-y

Abstract:

● A spindle-shaped influent chamber was designed and equipped in FCDI system.

Keywords： Spindle-shaped chamber     Desalination performance     Flow electrode capacitive deionization    

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Performance of activated carbon coated graphite bipolar electrodes on capacitive deionization method

Hossein D. Atoufi, Hasti Hasheminejad, David J. Lampert

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1278-1

Abstract: This research investigates a capacitive deionization method for salinity reduction in a batch reactorThus, using the capacitive deionization method for water desalination with low and moderate salt concentrationsCompared with conventional desalination methods, capacitive deionization is not only more efficient but

Keywords： Capacitive deionization (CDI)     Desalination     Electrical conductivity (EC)     Graphite bipolar electrode     Activated    

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Boron and nitrogen co-doped porous carbon derived from sodium alginate enhanced capacitive deionization

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 2014-2024 doi: 10.1007/s11705-023-2346-4

Abstract: Capacitive deionization can alleviate water shortage and water environmental pollution, but performances

Keywords： capacitance deionization     porous carbon     B/N co-doping     heavy metal ions     water purification    

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super-aligned carbon nanotube/activated carbon composite electrodes for efficient water purification via capacitivedeionization enhanced ultrafiltration

Min Li, Shuai Liang, Yang Wu, Meiyue Yang, Xia Huang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1286-1

Abstract: The practical application of the capacitive deionization (CDI) enhanced ultrafiltration (CUF) technology

Keywords： Carbon nanotube     Super aligned     Conductive membrane     Capacitive deionization     Ultrafiltration     Desalination    

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Emerging electrochemical processes for materials recovery from wastewater: Mechanisms and prospects

Lingchen Kong, Xitong Liu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 5, doi: 10.1007/s11783-020-1269-2

Abstract: Abstract • Mechanisms for selective recovery of materials in electrochemical processes are discussed. • Wastewaters that contain recoverable materials are reviewed. • Application prospects are discussed from both technical and non-technical aspects. Recovering valuable materials from waste streams is critical to the transition to a circular economy with reduced environmental damages caused by resource extraction activities. Municipal and industrial wastewaters contain a variety of materials, such as nutrients (nitrogen and phosphorus), lithium, and rare earth elements, which can be recovered as value-added products. Owing to their modularity, convenient operation and control, and the non-requirement of chemical dosage, electrochemical technologies offer a great promise for resource recovery in small-scale, decentralized systems. Here, we review three emerging electrochemical technologies for materials recovery applications: electrosorption based on carbonaceous and intercalation electrodes, electrochemical redox processes, and electrochemically induced precipitation. We highlight the mechanisms for achieving selective materials recovery in these processes. We also present an overview of the advantages and limitations of these technologies, as well as the key challenges that need to be overcome for their deployment in real-world systems to achieve cost-effective and sustainable materials recovery.

Keywords： Materials recovery     Electrosorption     Capacitive deionization     Redox processes     Electrochemical precipitation    

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A bionic approach for the mechanical and electrical decoupling of an MEMS capacitive sensor in ultralow

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-023-0747-1

Abstract: Capacitive sensors are efficient tools for biophysical force measurement, which is essential for thebeen rarely given on the influences of external mechanical and internal electrical interferences on capacitiveBased on the proposed bionic decoupling method, the fabricated sensor exhibited overwhelming capacitive

Keywords： micro-electro-mechanical system capacitive sensor     bionics     operation instability     mechanical and electrical    

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A “Seawater-in-Sludge” approach for capacitive biochar production via the alkaline and alkaline earth

Xiling Li, Tianwei Hao, Yuxin Tang, Guanghao Chen

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1295-0

Abstract: Abstract • Capacitive biochar was produced from sewage sludge. • Seawater was proved to be an alternative

Keywords： Sewage sludge     Biochar     Seawater     Recourse recovery     Capacitor    

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modulated feedback and temperature compensation approach to improve bias drift of a closed-loop MEMS capacitive

Ming-jun MA,Zhong-he JIN,Hui-jie ZHU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 6,   Pages 497-510 doi: 10.1631/FITEE.1400349

Abstract: The bias drift of a micro-electro-mechanical systems (MEMS) accelerometer suffers from the 1/ noise and the temperature effect. For massive applications, the bias drift urgently needs to be improved. Conventional methods often cannot address the 1/ noise and temperature effect in one architecture. In this paper, a combined approach on closed-loop architecture modification is proposed to minimize the bias drift. The modulated feedback approach is used to isolate the 1/ noise that exists in the conventional direct feedback approach. Then a common mode signal is created and added into the closed loop on the basis of modulated feedback architecture, to compensate for the temperature drift. With the combined approach, the bias instability is improved to less than 13 μ , and the drift of the Allan variance result is reduced to 17 μ at 100 s of the integration time. The temperature coefficient is reduced from 4.68 to 0.1 m /°C. The combined approach could be useful for many other closed-loop accelerometers.

Keywords： Bias drift     Closed-loop MEMS accelerometer     Modulated feedback approach     Temperature compensation    

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An Area Changeable Capacitive Micro-machined Accelerometer

Li Baoqing,Lu Deren,Wang Weiyuan

Strategic Study of CAE 2000, Volume 2, Issue 2,   Pages 36-40

Abstract:

In this paper, a newly developed accelerometer based on the principle of area changeable capacitance is presented at the first time. The movable mass is designed as many bars connected together and suspended by elastic beams. Two comb-shaped fixed electrodes with their fingers side by side are alternately placed under the mass. The mass moves in the direction parallel with the substrate plane under the effect of acceleration. The movable mass and fixed electrodes compose a differential capacitor unit. It is concluded by theoretical analysis that the signal of the acceleration is only proportionally related to the area between movable mass and fixed electrodes but not related to the gap between them. The parasitic capacitance Cp between the mass and fixed electrodes and CB induced by boundary effect both lower the sensitivity of the accelerometer by about 20 % , and lead to a vertical effect on accelerometer that could be ignored if compared with the sensitivity. The quasi-LIGA technology with Ni as structure layer and Cu as sacrificial layer is used to fabricate the sensor chips. The fixed electrodes are fabricated on a glass substrate. A Cu sacrificial layer used to determine the gap between the mass and fixed electrodes is then electroplated with the fixed electrodes layer. Finally, the movable Ni mass is also electroplated with the Cu layer and is released after selective etch of the Cu layer. After packaging in IC ceramic die under atmosphere, the accelerometer is put on avibrator to be tested under a frequency of 25 Hz. The output signal is connected to the interface circuit with electric wires. The experimental results show that the accelerometer has typical sensitivity of 58.1 mV/ (m·s-2) and non-linearity of 4% FS in operating range of 20 m/s2. The obtained non-linearity is not ideal and the reason is discussed based on experimental conditions

Keywords： capacitance     accelerometer     area changeable    

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Effects of environmental media on the transmission of an inductive link in wireless microsystems

Lei DONG, Li-Feng WANG, Qing-An HUANG

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 4,   Pages 554-556 doi: 10.1007/s11465-017-0450-1

Abstract: magnetically coupled coils in wireless microsystems is modeled by considering an additional parasitic capacitiveResults suggest that the capacitive link is non-negligible when the distance between the two coupled

Keywords： capacitive link     monitoring correction     passive wireless sensor    

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Micro-angle tilt detection for the rotor of a novel rotational gyroscopewith a 0.47’’ resolution Article

Hai LI, Xiao-wei LIU, Rui WENG, Hai-feng ZHANG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 5,   Pages 591-598 doi: 10.1631/FITEE.1500454

Abstract: Differential capacitive detection has been widely used in the displacement measurement of the proof massIn this paper, a differential capacitive detection structure is presented to measure the tilt angle of

Keywords： Micro-angle detection     Differential capacitive structure     Rotational gyroscope     Structure optimization    

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Title Author Date Type Operation

A novel flow electrode capacitive deionization device with spindle-shaped desalting chamber

Journal Article

Performance of activated carbon coated graphite bipolar electrodes on capacitive deionization method

Hossein D. Atoufi, Hasti Hasheminejad, David J. Lampert

Journal Article

Boron and nitrogen co-doped porous carbon derived from sodium alginate enhanced capacitive deionization

Journal Article

super-aligned carbon nanotube/activated carbon composite electrodes for efficient water purification via capacitivedeionization enhanced ultrafiltration

Min Li, Shuai Liang, Yang Wu, Meiyue Yang, Xia Huang

Journal Article

Emerging electrochemical processes for materials recovery from wastewater: Mechanisms and prospects

Lingchen Kong, Xitong Liu

Journal Article

A bionic approach for the mechanical and electrical decoupling of an MEMS capacitive sensor in ultralow

Journal Article

A “Seawater-in-Sludge” approach for capacitive biochar production via the alkaline and alkaline earth

Xiling Li, Tianwei Hao, Yuxin Tang, Guanghao Chen

Journal Article

modulated feedback and temperature compensation approach to improve bias drift of a closed-loop MEMS capacitive

Ming-jun MA,Zhong-he JIN,Hui-jie ZHU

Journal Article

An Area Changeable Capacitive Micro-machined Accelerometer

Li Baoqing,Lu Deren,Wang Weiyuan

Journal Article

Effects of environmental media on the transmission of an inductive link in wireless microsystems

Lei DONG, Li-Feng WANG, Qing-An HUANG

Journal Article

Micro-angle tilt detection for the rotor of a novel rotational gyroscopewith a 0.47’’ resolution

Hai LI, Xiao-wei LIU, Rui WENG, Hai-feng ZHANG

Journal Article