A Ce-CuZn catalyst with abundant Cu/Zn-O-Ce active sites for CO hydrogenation to methanol.

CO hydrogenation to chemicals and fuels is a significant approach for achieving carbon neutrality. It is essential to rationally design the chemical structure and catalytic active sites towards the development of efficient catalysts. Here we show a Ce-CuZn catalyst with enriched Cu/Zn-O-Ce active sites fabricated through the atomic-level substitution of Cu and Zn into Ce-MOF precursor.

Boosting Low-Temperature CO Hydrogenation over Ni-based Catalysts by Tuning Strong Metal-Support Interactions.

Rational design of low-cost and efficient transition-metal catalysts for low-temperature CO activation is significant and poses great challenges. Herein, a strategy via regulating the local electron density of active sites is developed to boost CO methanation that normally requires >350 °C for commercial Ni catalysts. An optimal Ni/ZrO catalyst affords an excellent low-temperature performance hitherto, with a CO conversion of 84.

Catalytic Decomposition Mechanism of PH on 3DCuO/C and High Value Utilization of Deactivated Catalysts.

With the widespread application of lithium iron phosphate batteries, the production capacity of the yellow phosphorus industry has increased sharply, and the treatment of the highly toxic by-product PH is facing severe challenges. In this study, a 3D copper-based catalyst (3DCuO/C) that can efficiently decompose PH at low temperatures and low oxygen concentrations is synthesized. The PH capacity is up to 181.

Enhanced adsorption of hydrophobic organic contaminants by high surface area porous graphene.

The relatively low surface area and micropore volume of graphene nanosheets (GNS) limit their potential application as effective adsorbents for hydrophobic organic contaminants (HOCs). In this study, KOH etching was used to develop activated GNS (K-GNS) for adsorption of model HOCs such as naphthalene, phenol, nitrobenzene, and bisphenol A. After activation, the specific surface area (SSA) of K-GNS increased to 885 m/g, which was three times larger than that of GNS.

Co-contaminant effects on ofloxacin adsorption onto activated carbon, graphite, and humic acid.

Given their voluminous application, significant amounts of fluoroquinolones are discharged into the environment through wastewater effluent. Adsorption has been shown to be a critical process controlling the environmental behaviors of fluoroquinolones. Competition between ofloxacin (OFL) and naphthalene (NAP)/bisphenol A (BPA) and their adsorption on activated carbon (AC), graphite (GP), and humic acid (HA) were investigated.