Xiaoxia Chang

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BACKGROUND In view of the discrepancies about the luteal estradiol treatment before stimulation protocols having some potential advantages compared with the standard protocols in poor ovarian responders undergoing IVF, a meta-analysis of the published data was performed to compare the efficacy of the luteal estradiol pre-treatment protocols in IVF poor(More)
Fine gold nanorod@TiO2 yolk-shell catalysts are synthesized by an improved silica template method. With a hollow TiO2 shell and a unique tunable cylindrical gold core, the catalyst exhibits a high surface area and a wide range of photoabsorption, from ultraviolet to near infrared. The remarkable photochemical activity is obtained when such catalyst is(More)
Surface reaction kinetics and bulk charge separation are both critical to the efficiency of solar water splitting. In addition to the well-documented surface catalytic effect, the promotion of bulk charge separation upon loading of cocatalysts has rarely been reported. This paper describes the synergetic enhancement of surface reaction kinetics and bulk(More)
This paper describes an approach to synthesize a tightly adhered Ta3N5 nanotube array (NTA) photoanode with enhanced electron conductivity between the Ta3N5 layer and the substrate via a two-step anodization method. The obtained tightly adhered Ta3N5 NTA photoanode exhibits excellent photoelectrochemical properties with an optimal photocurrent up to 5.3 mA(More)
We studied the impact of continous barley and a 4-year rotation consisting of fababean, barley after fababean, barley intercropped with field pea, and barley after the intercrop on the soil biological properties of a Gray Luvisol. The crop rotations were estabilshed in 1988 and fertilizer N was not applied to any plots. The plots were sampled five times(More)
Continuous efforts have been devoted to searching for sustainable energy resources to alleviate the upcoming energy crises. Among various types of new energy resources, solar energy has been considered as one of the most promising choices, since it is clean, sustainable, and safe. Moreover, solar energy is the most abundant renewable energy, with a total(More)
Efficient charge separation is a critical factor for solar energy conversion by heterogeneous photocatalysts. This paper describes the complete spatial separation of oxidation and reduction cocatalysts to enhance the efficacy of charge separation and surface reaction. Specifically, we design Pt@TiO2@MnOx hollow spheres (PTM-HSs) with Pt and MnOx loaded onto(More)
Multicomponent colloidal nanostructures (MCNs) exhibit intriguing topologically dependent chemical and physical properties. However, there remain significant challenges in the synthesis of MCNs with high-order complexity. Here we show the development of a general yet scalable approach for the rational design and synthesis of MCNs with unique coaxial-like(More)
Nanotubular Fe2 O3 is a promising photoanode material, and producing morphologies that withstand high-temperature calcination (HTC) is urgently needed to enhance the photoelectrochemical (PEC) performance. This work describes the design and fabrication of Fe2 O3 nanotube arrays that survive HTC for the first time. By introducing a ZrO2 shell on hydrothermal(More)
Efficient charge separation and light absorption are crucial for solar energy conversion over solid photocatalysts. This paper describes the construction of Pt@TiO2 @In2 O3 @MnOx mesoporous hollow spheres (PTIM-MSs) for highly efficient photocatalytic oxidation. TiO2 -In2 O3 double-layered shells were selectively decorated with Pt nanoparticles and MnOx on(More)