We show that the activity and selectivity of Cu catalyst can be promoted by a Zr-based metal-organic framework (MOF), Zr6O4(OH)4(BDC)6 (BDC = 1,4-benzenedicarboxylate), UiO-66, to have a strong interaction with Zr oxide [Zr6O4(OH)4(-CO2)12] secondary building units (SBUs) of the MOF for CO2 hydrogenation to methanol. These interesting features are achieved by a catalyst composed of 18 nm single...

In their Comment on the our recent Report, Nakamura et al argue that our x-ray photoelectron spectroscopy (XPS) analysis was affected by the presence of formate species on the catalyst surface. This argument is not valid because the reactant gases were evacuated at temperatures from 525 to 575 kelvin, conditions under which formate is not stable on the catalyst surface. An analysis of the XPS r...

Cu2O-ZnO nanowire solar cells have the advantages of light weight and high stability while possessing a large active material interface for potentially high power conversion efficiencies. In particular, electrochemically fabricated devices have attracted increasing attention due to their low-cost and simple fabrication process. However, most of them are "partially" electrochemically fabricated ...

We demonstrate a polymer brush assisted approach for the fabrication of continuous zirconium oxide (ZrO2) films over large areas with high uniformity (pin-hole free) on copper (Cu) substrates. This involves use thiol-terminated polymethyl methacrylate (PMMA-SH) as template layer selective infiltration oxynitrate (ZrN2O7). The preparation highly uniform covalently grafted monolayer Cu substrate ...

Steam reforming of methanol (SRM) was investigated over Cu/ZrO2/CeO2 (CZC) catalysts prepared via a novel synthetic method based on coprecipitation and polymer templating. Structural characterization of the samples was performed by N2 adsorption-desorption, N2O decomposition, and X-ray diffraction. The variation of the Cu loading resulted in an increased Cu crystallite size and a decreased spec...

Photoactive Cu-containing ZnO-ZnAl2O3 nanocomposites were synthesized by the polymer-salt method. To study structure and properties of materials, methods luminescent spectroscopy X-ray phase analysis used. It has been shown that resulting are capable photogeneration singlet oxygen under action UV blue light. The materials consist nanosized hexagonal ZnO crystals cubic ZnAl 2 O 4 doped with Cu. ...

In this study, we have proposed a new nanoparticle-containing test paper sensor that could be used as an inexpensive, easy-to-use, portable, and highly selective sensor to detect Cu(2+) ions in aqueous solutions. This disposable paper sensor is based on ZnO@ZnS core-shell nanoparticles. The core-shell nanoparticles were synthesized using a chemical method and then they were used for coating the...

• ZrO 2 @HKUST-1 composite was calcined to prepare Cu-ZrO catalysts with Cu nanoclusters. The catalyst significantly improved space time yield of CH 3 OH CO hydrogenation. is 5.2 times higher than reported under similar conditions. Controlled formation more interfaces that enhance activation. Pathways for the product and by-products are revealed via DFT calculations. In this study, a series hig...

A detailed ab initio DFT/GGA and DFT /GGA+U investigation of codoping ZnO with Co and Cu ions reveals the role of Cu and the existence of optimum structural dopant configurations which could lead to the enhancement of ferromagnetism. The role of the Cu ions in Zn Co,Cu O is to act as superexchange mediators while causing a remote delocalization through the hybridization of the Cu d3z2−r2 spin-m...

The photo-assisted carbon dioxide (CO2) hydrogenation provides an efficient and straightforward method for producing solar fuels with high efficiency. However, the development of highly catalysts controllable selectivity long-term stability still faces major challenges. This study proves that energy can promote CO2 over Cu/ZnO efficiently at atmospheric pressure reduction products be controlled...