Promoting Surface Electric Conductivity for High-Rate LiCoO.

The cathode materials work as the host framework for both Li diffusion and electron transport in Li-ion batteries. The Li diffusion property is always the research focus, while the electron transport property is less studied. Herein, we propose a unique strategy to elevate the rate performance through promoting the surface electric conductivity.

Tuning the exposure of BiVO-{010} facets to enhance the N photofixation performance.

Effective separation of photoexcited carriers and chemisorption of the N molecule are two key issues to efficient nitrogen photofixation. The spatial charge separation of BiVO with anisotropic exposed facets, namely the transfer of photoexcited electrons and holes to {010} and {110} facets, respectively, helps to enhance the separation ability of photogenerated carriers. Theoretical calculation results predict that a surface oxygen vacancy is easier to form on the (010) facet than on the (110) facet of BiVO.

Wavelength-Dependent Solar N Fixation into Ammonia and Nitrate in Pure Water.

Solar-driven N fixation using a photocatalyst in water presents a promising alternative to the traditional Haber-Bosch process in terms of both energy efficiency and environmental concern. At present, the product of solar N fixation is either NH or NO . Few reports described the simultaneous formation of ammonia (NH ) and nitrate (NO ) by a photocatalytic reaction and the related mechanism.