Promoting the Kinetics of Ethylene Electrosynthesis via the Facet-Dependent Activation of Acetylene over Silver Catalysts.

Metallic silver (Ag) sites exhibit a robust ability to suppress undesired C-C coupling in the electrocatalytic semihydrogenation of acetylene (CH) into ethylene (ESAE), leading to satisfactory selectivity and stability. However, the relatively low reaction kinetics still hinder its practical value. Here, the facet-dependent ESAE performance is first evaluated to increase the sluggish hydrogenation kinetics and provide mechanistic insight for subsequent catalyst design.

A dendritic porous copper foam-carbonic anhydrase biohybrid for carbon dioxide electroreduction.

Carbonic anhydrase (CA) is bound to a dendritic porous copper foam (3D-Cu) electrostatic interaction to form a biohybrid (CA/3D-Cu), which exhibits high selectivity and Faraday efficiency in the electroreduction of carbon dioxide (CO) to formic acid (selectivity of 98.7%, Faraday efficiency of 82.1%) due to the large specific surface area of the 3D-Cu and the ultra-high CO hydration capacity of CA.

One-dimensional cobalt oxide nanotubes with rich defect for oxygen evolution reaction.

For the electrochemcial hydrogen production, the oxygen evolution reaction (OER) is a pivotal half-reaction in water splitting. However, OER suffers sluggish kinetics and high overpotential, leading to the increase of overall energy consumption and decrease of the energy efficiency. In this work, high-quality cobalt oxide porous nanotubes (CoO-PNTs) are easily obtained by simple self-template approach.

Atomically thick Ni(OH) nanomeshes for urea electrooxidation.

Atomically thick ultrathin nanomeshes (NMs) possessing the inherent advantages of both two-dimensional nanomaterials and porous nanomaterials are attracting increasing interest in catalysis and electrocatalysis. Herein, we report a direct chemical synthesis of atomically thick Ni(OH)2-NMs by a NaBH4 assisted cyanogel hydrolysis method, which overcomes the shortcoming of the post-etching method for NM synthesis. Various physical characterization methods show that the as-synthesized Ni(OH)2-NMs have 1.