Pengfei Ou

Aug 21, 2023 | nature.com | Mengyang Fan |Rui Miao |Pengfei Ou |Jinqiang Zhang |Weiyan Ni |Ying Wang | +7 more

AbstractAcidic electrochemical CO2 reduction (CO2R) addresses CO2 loss and thus mitigates the energy penalties associated with CO2 recovery; however, acidic CO2R suffers low selectivity. One promising remedy—using a high concentration of alkali cations—steers CO2R towards multi-carbon (C2+) products, but these same alkali cations result in salt formation, limiting operating stability to <15 h.

Jul 12, 2023 | pubs.rsc.org | Yiqing Chen |Ying Zhao |Pengfei Ou |Jun Song

Two-Dimensional III-Nitride Alloys: Electronic and Chemical Properties of Monolayer Ga(1-x)AlxN Potential applications of III-nitrides have made their monolayer allotropes, i.e., two-dimensional (2D) III-nitrides, attracted much attention. Recently, alloying has been demonstrated as an effective method to control the properties of 2D materials.

May 3, 2023 | nature.com | Joshua Wicks |Jun Li |Yu Wang |Zheng Jiang |Yi Xu |Ruihu Lu | +11 more

AbstractThe carbon dioxide and carbon monoxide electroreduction reactions, when powered using low-carbon electricity, offer pathways to the decarbonization of chemical manufacture1,2. Copper (Cu) is relied on today for carbon–carbon coupling, in which it produces mixtures of more than ten C2+ chemicals3,4,5,6: a long-standing challenge lies in achieving selectivity to a single principal C2+ product7,8,9.

Apr 25, 2023 | nature.com | Yufei Cao |Pengfei Ou |Jehad Abed |Jinqiang Zhang |Jun Ge

AbstractPerforming CO2 reduction in acidic conditions enables high single-pass CO2 conversion efficiency. However, a faster kinetics of the hydrogen evolution reaction compared to CO2 reduction limits the selectivity toward multicarbon products. Prior studies have shown that adsorbed hydroxide on the Cu surface promotes CO2 reduction in neutral and alkaline conditions.

Apr 13, 2023 | pubs.rsc.org | Yiqing Chen |Ying Zhao |Pengfei Ou |Jun Song

Basal plane activation of two-dimensional transition metal dichalcogenides via alloying for hydrogen evolution reaction: first-principles calculations and machine learning prediction Yiqing Chen,   Ying Zhao,   Pengfei Ou  and  Jun Song   Abstract Two-dimensional transition metal dichalcogenides (2D TMDCs) show promise as potential inexpensive electrocatalysts for hydrogen evolution reaction (HER).