The Experts below are selected from a list of 321 Experts worldwide ranked by ideXlab platform
Zhengyong Huang - One of the best experts on this subject based on the ideXlab platform.
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Achieving Ultrahigh Output Energy Density of Triboelectric Nanogenerators in High‐Pressure Gas Environment
Advanced science (Weinheim Baden-Wurttemberg Germany), 2020Co-Authors: Xin Xia, Dong Guan, Zhengyong HuangAbstract:Through years of development, the triboelectric nanogenerator (TENG) has been demonstrated as a burgeoning efficient energy harvester. Plenty of efforts have been devoted to further improving the electric output performance through material/surface optimization, ion implantation or the external electric circuit. However, all these methods cannot break through the fundamental limitation brought by the inevitable electrical breakdown effect, and thus the output energy density is restricted. Here, a method for enhancing the threshold output energy density of TENGs is proposed by suppressing the breakdown effects in the high-pressure Gas Environment. With that, the output energy density of the contact-separation mode TENG can be increased by over 25 times in 10 atm than that in the atmosphere, and that of the freestanding sliding TENG can also achieve over 5 times increase in 6 atm. This research demonstrates the excellent suppression effect of the electric breakdown brought by the high-pressure Gas Environment, which may provide a practical and effective technological route to promote the output performance of TENGs.
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achieving ultrahigh output energy density of triboelectric nanogenerators in high pressure Gas Environment
Advanced Science, 2020Co-Authors: Xin Xia, Dong Guan, Zhengyong HuangAbstract:Through years of development, the triboelectric nanogenerator (TENG) has been demonstrated as a burgeoning efficient energy harvester. Plenty of efforts have been devoted to further improving the electric output performance through material/surface optimization, ion implantation or the external electric circuit. However, all these methods cannot break through the fundamental limitation brought by the inevitable electrical breakdown effect, and thus the output energy density is restricted. Here, a method for enhancing the threshold output energy density of TENGs is proposed by suppressing the breakdown effects in the high-pressure Gas Environment. With that, the output energy density of the contact-separation mode TENG can be increased by over 25 times in 10 atm than that in the atmosphere, and that of the freestanding sliding TENG can also achieve over 5 times increase in 6 atm. This research demonstrates the excellent suppression effect of the electric breakdown brought by the high-pressure Gas Environment, which may provide a practical and effective technological route to promote the output performance of TENGs.
Xin Xia - One of the best experts on this subject based on the ideXlab platform.
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Achieving Ultrahigh Output Energy Density of Triboelectric Nanogenerators in High‐Pressure Gas Environment
Advanced science (Weinheim Baden-Wurttemberg Germany), 2020Co-Authors: Xin Xia, Dong Guan, Zhengyong HuangAbstract:Through years of development, the triboelectric nanogenerator (TENG) has been demonstrated as a burgeoning efficient energy harvester. Plenty of efforts have been devoted to further improving the electric output performance through material/surface optimization, ion implantation or the external electric circuit. However, all these methods cannot break through the fundamental limitation brought by the inevitable electrical breakdown effect, and thus the output energy density is restricted. Here, a method for enhancing the threshold output energy density of TENGs is proposed by suppressing the breakdown effects in the high-pressure Gas Environment. With that, the output energy density of the contact-separation mode TENG can be increased by over 25 times in 10 atm than that in the atmosphere, and that of the freestanding sliding TENG can also achieve over 5 times increase in 6 atm. This research demonstrates the excellent suppression effect of the electric breakdown brought by the high-pressure Gas Environment, which may provide a practical and effective technological route to promote the output performance of TENGs.
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achieving ultrahigh output energy density of triboelectric nanogenerators in high pressure Gas Environment
Advanced Science, 2020Co-Authors: Xin Xia, Dong Guan, Zhengyong HuangAbstract:Through years of development, the triboelectric nanogenerator (TENG) has been demonstrated as a burgeoning efficient energy harvester. Plenty of efforts have been devoted to further improving the electric output performance through material/surface optimization, ion implantation or the external electric circuit. However, all these methods cannot break through the fundamental limitation brought by the inevitable electrical breakdown effect, and thus the output energy density is restricted. Here, a method for enhancing the threshold output energy density of TENGs is proposed by suppressing the breakdown effects in the high-pressure Gas Environment. With that, the output energy density of the contact-separation mode TENG can be increased by over 25 times in 10 atm than that in the atmosphere, and that of the freestanding sliding TENG can also achieve over 5 times increase in 6 atm. This research demonstrates the excellent suppression effect of the electric breakdown brought by the high-pressure Gas Environment, which may provide a practical and effective technological route to promote the output performance of TENGs.
Dong Guan - One of the best experts on this subject based on the ideXlab platform.
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Achieving Ultrahigh Output Energy Density of Triboelectric Nanogenerators in High‐Pressure Gas Environment
Advanced science (Weinheim Baden-Wurttemberg Germany), 2020Co-Authors: Xin Xia, Dong Guan, Zhengyong HuangAbstract:Through years of development, the triboelectric nanogenerator (TENG) has been demonstrated as a burgeoning efficient energy harvester. Plenty of efforts have been devoted to further improving the electric output performance through material/surface optimization, ion implantation or the external electric circuit. However, all these methods cannot break through the fundamental limitation brought by the inevitable electrical breakdown effect, and thus the output energy density is restricted. Here, a method for enhancing the threshold output energy density of TENGs is proposed by suppressing the breakdown effects in the high-pressure Gas Environment. With that, the output energy density of the contact-separation mode TENG can be increased by over 25 times in 10 atm than that in the atmosphere, and that of the freestanding sliding TENG can also achieve over 5 times increase in 6 atm. This research demonstrates the excellent suppression effect of the electric breakdown brought by the high-pressure Gas Environment, which may provide a practical and effective technological route to promote the output performance of TENGs.
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achieving ultrahigh output energy density of triboelectric nanogenerators in high pressure Gas Environment
Advanced Science, 2020Co-Authors: Xin Xia, Dong Guan, Zhengyong HuangAbstract:Through years of development, the triboelectric nanogenerator (TENG) has been demonstrated as a burgeoning efficient energy harvester. Plenty of efforts have been devoted to further improving the electric output performance through material/surface optimization, ion implantation or the external electric circuit. However, all these methods cannot break through the fundamental limitation brought by the inevitable electrical breakdown effect, and thus the output energy density is restricted. Here, a method for enhancing the threshold output energy density of TENGs is proposed by suppressing the breakdown effects in the high-pressure Gas Environment. With that, the output energy density of the contact-separation mode TENG can be increased by over 25 times in 10 atm than that in the atmosphere, and that of the freestanding sliding TENG can also achieve over 5 times increase in 6 atm. This research demonstrates the excellent suppression effect of the electric breakdown brought by the high-pressure Gas Environment, which may provide a practical and effective technological route to promote the output performance of TENGs.
David Risk - One of the best experts on this subject based on the ideXlab platform.
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Technical Note: Isotopic corrections for the radiocarbon composition of CO 2 in the soil Gas Environment must account for diffusion and diffusive mixing
Biogeosciences, 2019Co-Authors: Jocelyn Egan, David R. Bowling, David RiskAbstract:Abstract. Earth system scientists working with radiocarbon in organic samples use a stable carbon isotope ( δ13C ) correction to account for mass-dependent fractionation, but it has not been evaluated for the soil Gas Environment, wherein both diffusive Gas transport and diffusive mixing are important. Using theory and an analytical soil Gas transport model, we demonstrate that the conventional correction is inappropriate for interpreting the radioisotopic composition of CO2 from biological production because it does not account for important Gas transport mechanisms. Based on theory used to interpret δ13C of soil production from soil CO2 , we propose a new solution for radiocarbon applications in the soil Gas Environment that fully accounts for both mass-dependent diffusion and mass-independent diffusive mixing.
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Isotopic fractionation corrections for the radiocarbon composition ofCO 2 in the soil Gas Environment must include diffusion and mixing
2018Co-Authors: Jocelyn Egan, David R. Bowling, David RiskAbstract:Abstract. Earth system scientists working with radiocarbon in organic samples use a stable carbon isotope (δ13C) correction to account for mass-dependent fractionation caused primarily by photosynthesis. Although researchers apply this correction routinely, it has not been evaluated for the soil Gas Environment, where both diffusive Gas transport and diffusive mixing are important. Towards this end we applied an analytical soil Gas transport model across a range of soil diffusivities and biological CO2 production rates, allowing us to control the radiocarbon (Δ14C) and stable isotope (δ13C) compositions of modeled soil CO2 production and atmospheric CO2. This approach allowed us to assess the bias that results from using the conventional correction method for estimating Δ14C of soil production. We found that the conventional correction is inappropriate for interpreting the radio-isotopic composition of CO2 from biological production, because it does not account for diffusion and diffusive mixing. The resultant Δ14C bias associated with the traditional correction is highest (up to 150 ‰) in soils with low biological production and/or high soil diffusion rates. We propose a new solution for radiocarbon applications in the soil Gas Environment that fully accounts for diffusion and diffusive mixing.
C J Webb - One of the best experts on this subject based on the ideXlab platform.
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the effect of ball milling Gas Environment on the sorption kinetics of mgh2 with without additives for hydrogen storage
International Journal of Hydrogen Energy, 2019Co-Authors: K Alsabawi, Maca E Gray, C J WebbAbstract:Abstract A study of the effect of the ball-milling Gas Environment on the kinetic enhancement of MgH2 with different additives was conducted using argon and hydrogen. The as-sourced MgH2 was milled for 20 h and then milled for a further 2 h after adding 1–2 mol% of one of the additives titanium isopropoxide, niobium oxide or carbon buckyballs, varying the Gas Environment for both ball-milling stages. The milling Environment had little or no effect on the desorption kinetics in most cases. However, in some cases, the absorption uptake differed by up to 2 wt%, depending on the Gas used. This effect was not consistent among the composite samples surveyed, demonstrating the importance of reporting all information about the ball-milling processes used, including the Gas Environment.
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The effect of ball-milling Gas Environment on the sorption kinetics of MgH2 with/without additives for hydrogen storage
International Journal of Hydrogen Energy, 2019Co-Authors: K Alsabawi, E. Maca. Gray, C J WebbAbstract:Abstract A study of the effect of the ball-milling Gas Environment on the kinetic enhancement of MgH2 with different additives was conducted using argon and hydrogen. The as-sourced MgH2 was milled for 20 h and then milled for a further 2 h after adding 1–2 mol% of one of the additives titanium isopropoxide, niobium oxide or carbon buckyballs, varying the Gas Environment for both ball-milling stages. The milling Environment had little or no effect on the desorption kinetics in most cases. However, in some cases, the absorption uptake differed by up to 2 wt%, depending on the Gas used. This effect was not consistent among the composite samples surveyed, demonstrating the importance of reporting all information about the ball-milling processes used, including the Gas Environment.
