A spongy nickel-organic CO2 reduction photocatalyst for nearly 100% selective CO production.

Related Articles

A spongy nickel-organic CO2 reduction photocatalyst for nearly 100% selective CO production.

Sci Adv. 2017 Jul;3(7):e1700921

Authors: Niu K, Xu Y, Wang H, Ye R, Xin HL, Lin F, Tian C, Lum Y, Bustillo KC, Doeff MM, Koper MTM, Ager J, Xu R, Zheng H

Abstract
Solar-driven photocatalytic conversion of CO2 into fuels has attracted a lot of interest; however, developing active catalysts that can selectively convert CO2 to fuels with desirable reaction products remains a grand challenge. For instance, complete suppression of the competing H2 evolution during photocatalytic CO2-to-CO conversion has not been achieved before. We design and synthesize a spongy nickel-organic heterogeneous photocatalyst via a photochemical route. The catalyst has a crystalline network architecture with a high concentration of defects. It is highly active in converting CO2 to CO, with a production rate of ~1.6 × 10(4) μmol hour(-1) g(-1). No measurable H2 is generated during the reaction, leading to nearly 100% selective CO production over H2 evolution. When the spongy Ni-organic catalyst is enriched with Rh or Ag nanocrystals, the controlled photocatalytic CO2 reduction reactions generate formic acid and acetic acid. Achieving such a spongy nickel-organic photocatalyst is a critical step toward practical production of high-value multicarbon fuels using solar energy.

PMID: 28782031 [PubMed - in process]

from # All Medicine by Alexandros G. Sfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2wBvhya
via IFTTT