Simon Qian
YOU?
Author Swipe
View article: Elucidating the Hydrogen Selectivity of Pt/TiO<sub><i>x</i></sub>/C as a Fuel-Cell Catalyst by Operando Near-Ambient-Pressure XPS
Elucidating the Hydrogen Selectivity of Pt/TiO<sub><i>x</i></sub>/C as a Fuel-Cell Catalyst by Operando Near-Ambient-Pressure XPS Open
The long-term stability of proton exchange membrane fuel cells (PEMFCs) faces significant challenges, particularly during start-up and shut-down events, which lead to degradation of the cathode catalyst through the oxidation of its carbon …
View article: Simulating Electrochemical Aging in NCM111 Materials Through Controlled Chemical Delithiation
Simulating Electrochemical Aging in NCM111 Materials Through Controlled Chemical Delithiation Open
To meet the cycle life requirements and to guarantee the safe operation of lithium-ion batteries, the upper cutoff potential of cathode active materials based on mixed transition metal layered oxides like NCM (LiMO 2 , with M = Ni, Co, Mn)…
View article: Exploring the Electrochemical Stability Window of an All-Solid-State Composite Cathode via a Novel <i>Operando</i> Tender XPS Setup
Exploring the Electrochemical Stability Window of an All-Solid-State Composite Cathode via a Novel <i>Operando</i> Tender XPS Setup Open
All-solid-state batteries (ASSBs) have the potential to provide greater energy density than conventional batteries based on liquid electrolytes. Here, an operando ASSB cell setup for tender X-ray photoelectron spectroscopy (XPS) was…
View article: Water-soluble N-heterocyclic carbene stabilized gold nanoparticles by top-down synthesis: performance in catalysis and photoacoustic imaging
Water-soluble N-heterocyclic carbene stabilized gold nanoparticles by top-down synthesis: performance in catalysis and photoacoustic imaging Open
N-heterocyclic carbene (NHC) stabilized gold nanoparticles synthesized by the 'top-down' approach show greater promise in catalysis and photoacoustic imaging compared to their 'bottom-up' counterparts.
View article: Understanding the Effect of Lithium Nitrate as Additive in Carbonate-Based Electrolytes for Silicon Anodes
Understanding the Effect of Lithium Nitrate as Additive in Carbonate-Based Electrolytes for Silicon Anodes Open
Due to its high specific capacity, silicon is one of the most promising anode materials for next-generation lithium-ion batteries. However, its large volumetric changes upon (de)lithiation of ∼300% lead to a rupture/re-formation of the sol…
View article: Surface Oxygen Depletion of Layered Transition Metal Oxides in Li-Ion Batteries Studied by <i>Operando</i> Ambient Pressure X-ray Photoelectron Spectroscopy
Surface Oxygen Depletion of Layered Transition Metal Oxides in Li-Ion Batteries Studied by <i>Operando</i> Ambient Pressure X-ray Photoelectron Spectroscopy Open
A new operando spectro-electrochemical setup was developed to study oxygen depletion from the surface of layered transition metal oxide particles at high degrees of delithiation. An NCM111 working electrode was paired with a chemica…
View article: Aluminum Oxide at the Monolayer Limit via Oxidant‐Free Plasma‐Assisted Atomic Layer Deposition on GaN
Aluminum Oxide at the Monolayer Limit via Oxidant‐Free Plasma‐Assisted Atomic Layer Deposition on GaN Open
Atomic layer deposition (ALD) is an essential tool in semiconductor device fabrication that allows the growth of ultrathin and conformal films to precisely form heterostructures and tune interface properties. The self‐limiting nature of th…
View article: Operando Identification of Liquid Intermediates in Lithium–Sulfur Batteries via Transmission UV–vis Spectroscopy
Operando Identification of Liquid Intermediates in Lithium–Sulfur Batteries via Transmission UV–vis Spectroscopy Open
Lithium-sulfur (Li-S) batteries are facing various challenges with regards to performance and durability, and further improvements require a better understanding of the fundamental working mechanisms, including an identification of the rea…