Nickel Complexes and Carbon Dots for Efficient Light?Driven Hydrogen Production

Theory of Nickel and and Nickel - Hydrogen Complexes in SiliconR

Spin-polarized local density functional cluster calculations are carried out on substitutional Ni and Ni-H 2 complexes. We nd that Ni ? undergoes a Jahn-Teller distortion along h100i with Ni moving slightly along the cube axis. The distorted state gives b 1 ; b 2 and a 1 levels in ascending order of energies within the gap in agreement with experiment. Several candidate NiH 2 defects are invest...

Near‐Infrared Colloidal Quantum Dots for Efficient and Durable Photoelectrochemical Solar‐Driven Hydrogen Production

A new hybrid photoelectrochemical photoanode is developed to generate H2 from water. The anode is composed of a TiO2 mesoporous frame functionalized by colloidal core@shell quantum dots (QDs) followed by CdS and ZnS capping layers. Saturated photocurrent density as high as 11.2 mA cm-2 in a solar-cell-driven photoelectrochemical system using near-infrared QDs is obtained.

Bimetallic nickel complexes for selective CO2 carbon capture and sequestration.

Herein we report a dinickel azacryptand complex that enables fast, selective, and tight CO2 binding from air. Exploiting the affinity of the cavitand towards azides, CO2 release was observed. Despite the stability of the azido complex, UV irradiation under atmospheric conditions proved to be a suitable pathway for N3(-) replacement by CO2.

Towards efficient solar hydrogen production by intercalated carbon nitride photocatalyst.

The development of efficient photocatalytic material for converting solar energy to hydrogen energy as viable alternatives to fossil-fuel technologies is expected to revolutionize energy shortage and environment issues. However, to date, the low quantum yield for solar hydrogen production over photocatalysts has hindered advances in the practical applications of photocatalysis. Here, we show th...

Quantum Dots: Near‐Infrared Colloidal Quantum Dots for Efficient and Durable Photoelectrochemical Solar‐Driven Hydrogen Production (Adv. Sci. 3/2016)