Solar energy accounts for more than 99% of the total energy of the *** a pollution-free and inexhaustible energy source, solar energy becomes the focus to resolve the energy *** solar have attract a great interest bec...
Solar energy accounts for more than 99% of the total energy of the *** a pollution-free and inexhaustible energy source, solar energy becomes the focus to resolve the energy *** solar have attract a great interest because of their abundantly available raw materials, low costs and simple fabrication ***, the main disadvantages associated with organic photovoltaic cells are low efficiency, low stability and low strength compared to inorganic photovoltaic *** mixing the inorganic materials, the hybrid solar cells keep both the advantage of the inorganic materials with high carrier mobility and stable chemistry and the merit of the organic materials with good flexibility, available machinability and high absorption coefficient, which makes the hybrid solar cells become one of the hot research topics in photovoltaic *** this paper, a nano-tree array system with backbone and branches will be designed and ***, the hybrid solar cells with conformal structure from the arrays will be *** effect of the growth condition of the inorganic nanostructure on the types, quantities and locations of the native defects will be further *** turn, the effect of the type and location of the defects on the properties of the solar cells will be *** inorganic nanostructure in the hybrid solar cells will be optimized, thus, the transfers of the electrons with high mobility in the inorganic material and the holes with low mobility in the polymer will be balanced, which will greatly improves the solar photovoltaic conversion efficiency.
Carbon nanotube (CNT) has been tried as the anode or anodic modifier in microbial fuel cells (MFCs) due to its unique physical/chemical characteristics, such as good electrical conductivity, superior mechanical proper...
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Carbon nanotube (CNT) has been tried as the anode or anodic modifier in microbial fuel cells (MFCs) due to its unique physical/chemical characteristics, such as good electrical conductivity, superior mechanical property and high specific area[1-2].However, CNT has never been packed as both the anode and microbial carrier for MFCs.A sugar-rich synthetic wastewater in different organic loading rates (OLRs) ranging from 0.22 to 10.27 g/L/d was used as the feedstock to investigate the capacity of PBMFCs for treating wastewater and power generation.A maximal output voltage of 0.31V (external resistance at 1000 ohm) was obtained with a maximal chemical oxygen demand (COD) removal rate of 90.19% at an OLR of 3.49g/L/d.
A family of layered double hydroxides (LDHs) with varied Fe contents were employed as catalyst precursors for the controllable bulk growth of few-layer graphene/single-walled carbon nanotube (G/SWCNT) hybrids in a flu...
A family of layered double hydroxides (LDHs) with varied Fe contents were employed as catalyst precursors for the controllable bulk growth of few-layer graphene/single-walled carbon nanotube (G/SWCNT) hybrids in a fluidized-bed reactor through chemical vapor deposition of methane at 950 ℃.All the G/SWCNT hybrids exhibited the morphology of SWCNTs interlinked with graphene *** purity, thermal stability, graphitization degree, specific surface area, and total pore volume of the G/SWCNT hybrids decreased with the increasing Fe contents in the LDH precursors.A high yield of 0.97 gG/SWCNTs/gcat can be achieved by tuning the Fe content in the FeMgAl LDHs after a 15-min *** the removal of the as-calcined FeMgAl layered double oxide flakes, a high carbon purity of ca.98.3% for G/SWCNT hybrids was achieved when the mole ratio of Fe-Al is 0.05∶*** size and density of Fe nanoparticles decorated in the as-obtained G/SWCNT hybrids depend largely on Fe content in the FeMgAl LDH ***, the mass ratio of graphene materials to SWCNTs in the as-prepared G/SWCNT hybrids can be well controlled in a range of *** production of G/SWCNT hybrids with well controlled structure in the fluidized-bed reactor is easy to be scaled up for their large scale applications in the area of energy storage and conversion, composites, and catalysis.
An attempt using graphene oxide modified self-regulating mesoporous titanium dioxide whisker as a catalyst carrier of hydrogen desulfurization, was carried out to prepare MoO3-NiO/TiO2 catalyst by single-step incipien...
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An attempt using graphene oxide modified self-regulating mesoporous titanium dioxide whisker as a catalyst carrier of hydrogen desulfurization, was carried out to prepare MoO3-NiO/TiO2 catalyst by single-step incipient wetness impregnation.X-ray, N2 absorption/desorption, SEM, Raman diffraction are adopted to characterize the properties of carriers and *** effect of graphene oxide modified mesoporous TiO2 whisker as catalyst carriers on the performance of dibenzothiophene (DBT) hydrogen desulfurization (HDS) was *** show that the graphene oxide modified mesoporous TiO2 whisker has highly whisker morphology and larger specific surface area as well as special pore *** conversion over graphene oxide modified mesoporous TiO2 whisker could approach 100% under moderate conditions of reaction temperature 250 ℃, hydrogen partial pressure 2.0 MPa, hydrogen/oil ratio 400 and LHSV 4 *** also indicates that under the condition of similar specific surface area, the sequence of the desulfurization effect of the tested catalysts is graphene oxide modified mesoporous TiO2 whisker>mesoporous TiO2 whisker>rutile.
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