Related Experiment Video
Updated: Feb 2, 2026

Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment
Published on: December 3, 2019
Exploration of CeO2-CuO Quantum Dots in Situ Grown on Graphene under Hypha Assistance for Highly Efficient
Junchao Qian1, Zhigang Chen1, Feng Chen1,2
1Jiangsu Key Laboratory for Environment Functional Materials , Suzhou University of Science and Technology , 1 Kerui Road , Suzhou 215009 , China.
Abstract:
The development of an artificial model of photoinduced hydrogen production system requires efficient, long-term stability and cost-competitive photocatalysts to store solar energy in chemical bonds. However, the existing photocatalysts still suffer from the high cost, high recombination rate of photoexcited electron-hole pairs, and poor photostability. Herein, we demonstrate the synthesis of a p-type CuO/n-type CeO2 heterojunction in situ grown on graphene via a hypha assistance process. Amazingly, optical and photoelectrochemical measurements show the superiority of this hierarchically biomorphic structure. The observed H2 evolution rate of the CeO2-CuO quantum dots/graphene has reached 2481 μmol·h-1·g-1 and remains unchanged in four hydrogen production cycles. Considering the convenience of microbial culture, this heterostructure system has great potential as a photocatalyst for solar-fuel conversion.
Related Concept Videos
The Dot Product
Dot Product
In engineering, the dot product of any two vectors is the product of the magnitudes of the vectors and the cosine of the angle between them. It is denoted by a dot symbol between the two vectors.
Consider a vehicle pulling an object along the ground using a rope. If the rope makes an angle with the horizontal axis, the work done can be calculated using the dot product of the force applied and the object's displacement.
The dot...
Scalar Product (Dot Product)
The scalar product of two vectors is obtained by multiplying...
Dot Product: Problem Solving
Identify the problem: Start by reading the problem and...
Quantum Numbers
The Quantum-Mechanical Model of an Atom

