Ni-Based Catalysts for CO Methanation: Exploring the Support Role in Structure-Activity Relationships.

The catalytic hydrogenation of CO to methane is one of the highly researched areas for the production of chemical fuels. The activity of catalyst is largely affected by support type and metal-support interaction deriving from the special method during catalyst preparation. Hence, we employed a simple solvothermal technique to synthesize Ni-based catalysts with different supports and studied the support role (CeO, AlO, ZrO, and LaO) on structure-activity relationships in CO methanation.

Heterostructured CoS/CuCoS@N-doped carbon hollow sphere for potassium-ion batteries.

Potassium ions batteries (PIBs) have been regarded as a promising choice for electrical energy storage technology due to the wide distribution of potassium resources. However, developing low-cost and robust earth-rich anode materials is still a major challenge for the practical and scalable usage of PIBs. Herein, for the first time, we developed nitrogen doped carbon coating CoS/CuCoS heterostructure (CoS/CuCoS@NCs) hollow spheres and evaluated as anode for PIBs.

Amorphous carbon coated SnO nanohseets on hard carbon hollow spheres to boost potassium storage with high surface capacitive contributions.

Potassium-ion batteries (KIBs) have becoming a prospective energy storage technique, due to the abundant potassium resources in the earth crust, approximate redox potential and similar electrochemical behavior of potassium and lithium. However, the insufficient capacity, poor stability and volume expansion of electrode materials during charge and discharge are main factors restricting the further development of KIBs. This work reports an amorphous carbon coated SnO nanohseets on hard carbon hollow spheres (AC/SnO@HCHS) anode with enhanced potassium storage performance.