Converting Chemical Energy Into Electricity through a Functionally Cooperating Device with Diving–Surfacing Cycles

Song, Mengmeng; Cheng, Mengjiao; Ju, Guannan; Zhang, Yajun; Shi, Feng

doi:10.1002/adma.201402237

Cited by 54 publications

(37 citation statements)

References 44 publications

(39 reference statements)

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“…Moving objects in water have attracted broad attention for their great potential applications in various fields such as cargo delivery, [1] phase transfer, [2] water/oil separation, [3][4][5][6] and electric generation. [7][8][9][10] Objects can move at the interface of liquid/air, which is achieved in our previous work and many others' work, [11][12][13][14][15][16] or under the liquid. [17][18][19][20][21][22][23] There are many possible underwater motions can be achieved, some of which can be inspired from nanostructures/microstructures of creatures living in the water environment.…”

Section: Photothermally Driven Motorsmentioning

confidence: 99%

“…These natural species inspires the design and fabrication of the functional motor and the control over the underwater motions by different external stimuli. Shi and co‐workers has demonstrated a chemical approach that uses gas bubbles such as O 2 , CO 2 , and H 2 generated from redox chemical reaction to provide the propulsive force for the underwater motion of smart metal foam devices . Meanwhile, Sanchez and co‐workers presented a controllable way of studying chemotactic behavior of two families of artificial catalytic micromotors (tubular microjets and Janus particles), known to be driven by hydrogen peroxide, which is used both as a fuel and as chemical attractant.…”

mentioning

confidence: 99%

“…Shi and co-workers has demonstrated a chemical approach that uses gas bubbles such as O 2 , CO 2 , and H 2 generated from redox chemical reaction to provide the propulsive force for the underwater motion of smart metal foam devices. [2,8,9,28,29] Meanwhile, Sanchez and co-workers presented a controllable way of studying chemotactic behavior of two families of artificial catalytic micromotors (tubular microjets and Janus particles), known to be driven by hydrogen peroxide, which is used both as a fuel and as chemical attractant. Spherical Janus particles and tubular microjets moved toward the gradient of fuel in microfluidic channels without the influence of capillary forces.…”

mentioning

confidence: 99%

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Bubble‐Enabled Underwater Motion of a Light‐Driven Motor

Luan

Meng

Tao

et al. 2019

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This work reports the photothermally driven horizontal motion of a motor as well as the suspending and vertical movements underwater. A motor is designed by attaching two polydimethylsiloxane‐coated oxidized copper foams (POCF) to the two opposite sides of an oxidized copper foam (OCF). When the hydrophobic POCF is immersed in water, it serves as both an air bubble trapper and a light‐to‐heat conversion center. As bubbles grow under photothermal heating, they provide lifting force and result in the revolving motion of the motor. With removal of light illumination, bubbles are cooled by the surrounding water and shrink, and the buoyance is lowered. The resultant force of gravitational force, buoyance, and fluid resistance drives the motor to move forward horizontally. Furthermore, the motors are utilized as oil collectors and oil/water separation is achieved successfully. To effectively control the suspending motion, a polydimethylsiloxane foam doped with carbon black (C‐foam) is designed under the photothermal principle. It is maintained at a certain position underwater by controlling the on/off of light. The vertical motion is also studied and utilized to generate electricity. It is expected that different types of underwater motion will open up new opportunities for various applications including drug delivery, collection of heavy oil underwater, and electricity generation.

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Section: Photothermally Driven Motorsmentioning

confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

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Bubble‐Enabled Underwater Motion of a Light‐Driven Motor

Luan

Meng

Tao

et al. 2019

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“…Although the construction of new types of vertically moving self‐propelling particles is considered important, to date only few studies have explored this topic. Recently, vertically moving cm‐sized particle was reported by Song et al, using chemical fuel (Mg) loaded inside the particle. The use of “fuel” from the external medium is simpler and more versatile approach, as replenishing the medium would reversibly reactivate the particle, as shown for vertically moving particles .…”

Section: Introductionmentioning

confidence: 99%

Active Steerable Catalytic Supraparticles Shuttling on Preprogrammed Vertical Trajectories

Sperling

Kim

Velev

et al. 2016

Adv Materials Inter

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This study presents a novel type of mm‐sized colloidal supraparticle performing self‐propelled oscillating motion that can be programmed on a controlled 3D trajectory. These supraparticles are self‐assembled inside drying aqueous colloidal suspension droplets on a superhydrophobic surface. The droplets contain silica microspheres as main colloidal building block and Pt‐covered Fe3O4 nanoparticles as catalyst. The supraparticles are rendered patchy by attracting the magnetic catalyst nanoparticles to one side of the droplet during the assembly. Catalytic decomposition of H2O2 leads to vertical motion by buoyancy of formed bubbles. This study comprehensively analyzes this motion in terms of the vertical oscillation frequency that depends on H2O2 “fuel” concentration as well as on the supraparticles density. It is demonstrated that the magnetic functionality can be used to manipulate the particle's trajectory to access nearly any place within the vessel. Furthermore, after binding of α‐amylase to the particle surface it is shown that their motion leads to rapid catalytic decomposition of a blue starch–iodine complex within the whole medium. Thus, these functional supraparticles can find versatile applications in a new generation of highly efficient catalysts, microstirrers and self‐motile microshuttles that can perform designed tasks while being able to access every point in the liquid in controlled trajectories.

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“…Harvesting mechanical energy from the environment is widely considered as an attractive approach since it is reliable and abundant [3,4] . It has been converted into electrical energy based on piezoelectric [5][6][7] , electromagnetic [8][9][10][11] and electrostatic [12][13][14] principles. Contact electrification is a common energy form in daily life, but it is undesirable in most time, especially for electronic devices.…”

Section: Introductionmentioning

confidence: 99%

Flexible triboelectric nanogenerator from micro-nano structured polydimethylsiloxane

Xiao

Lü

Gong

et al. 2015

Chem. Res. Chin. Univ.

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Triboelectric nanogenerator(TENG) can convert mechanical energy to electrical energy through contact electrification and electrostatic induction. Single-friction-surface triboelectric nanogenerator(STENG) extends potential application because a finger can be used as one friction surface in the contact electrification. In this work, a fully flexible STENG has been made, consisting of polydimethylsiloxane(PDMS) with micro-nano structures on its observe side and a flexible electrode on its reverse side. The femtosecond laser ablation was introduced to make micro-nano structures on PDMS and Ag nanowires(Ag NWs) were embedded in PDMS to serve as flexible induction electrode. It has been demonstrated that the energy conversion efficiency increases greatly because of the existing micro-nano structures on PDMS. Further, the mechanism of STENG was proved. Owing to the fully flexible characteristics in both the electrode and PDMS, STENG works well when it is adhered on any subject, for example, on clothes by tape.

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Converting Chemical Energy Into Electricity through a Functionally Cooperating Device with Diving–Surfacing Cycles

Cited by 54 publications

References 44 publications

Bubble‐Enabled Underwater Motion of a Light‐Driven Motor

Bubble‐Enabled Underwater Motion of a Light‐Driven Motor

Active Steerable Catalytic Supraparticles Shuttling on Preprogrammed Vertical Trajectories

Flexible triboelectric nanogenerator from micro-nano structured polydimethylsiloxane

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