What Makes On‐Chip Microdevices Stand Out in Electrocatalysis?

Abstract

Clean and sustainable energy conversion and storage through electrochemistry shows great promise as an alternative to traditional fuel or fossil‐consumption energy systems. With regards to practical and high‐efficient electrochemistry application, the rational design of active sites and the accurate description of mechanism remain a challenge. Toward this end, in this Perspective, a unique on‐chip micro/nano device coupling nanofabrication and low‐dimensional electrochemical materials is presented, in which material structure analysis, field‐effect regulation, in situ monitoring, and simulation modeling are highlighted. The critical mechanisms that influence electrochemical response are discussed, and how on‐chip micro/nano device distinguishes itself is emphasized. The key challenges and opportunities of on‐chip electrochemical platforms are also provided through the Perspective.

Metal–Semiconductor Behavior along the Line of Stacking Order Change in Gated Multilayer Graphene

“…In a tight-binding model, the field enters via V L added to diagonal elements of the Hamiltonian matrix of a given layer, L. We use such a gate configuration, in which V L = V × (L − 1), where L = 1 is the bottom layer. As for the gate voltage modulation, the reader is encouraged to consult [28].…”