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Designing closed, laser-induced optical cycling transitions in trapped atoms or molecules is useful for quantum information processing, precision measurement, and quantum sensing. Larger molecules that feature such closed transitions are…

Atomic Physics · Physics 2023-08-23 Claire E. Dickerson , Cecilia Chang , Han Guo , Anastassia N. Alexandrova

Recent advances in nanomaterials have pushed the boundaries of nanoscale fabrication to the limit of single atoms (SAs), particularly in heterogeneous catalysis. Single atom catalysts (SACs), comprising minute amounts of transition metals…

The discovery of superconductivity (SC) with critical temperature $T_c$ above the boiling point of liquid nitrogen in pressurized La$_3$Ni$_2$O$_{7}$ has sparked a surge of exploration of high-$T_c$ superconductors in the Ruddlesden-Popper…

Superconductivity · Physics 2026-02-24 Ming Zhang , Cui-Qun Chen , Dao-Xin Yao , Fan Yang

Catalysts for oxygen reduction and evolution reactions are at the heart of key renewable energy technologies including fuel cells and water splitting. Despite tremendous efforts, developing oxygen electrode catalysts with high activity at…

Materials Science · Physics 2011-08-12 Yongye Liang , Yanguang Li , Hailiang Wang , Jigang Zhou , Jian Wang , Tom Regier , Hongjie Dai

The large bandgap and strong covalent bonds of hexagonal boron nitride (hBN) had long been thought to be chemically inert. Due to its inertness with saturated robust covalent bonds, the pristine 2D monolayer hBN cannot be functionalized for…

Materials Science · Physics 2024-04-22 Lokesh Yadav , Srimanta Pakhira

In this report, the preparation of Fe-carbon nitride (CN)-based electrocatalysts (ECs) with a 'core-shell' morphology for the oxygen reduction reaction (ORR) is described. The ECs consist of spherical XC-72R carbon nanoparticles, the…

Co(II) dissolved in acetate buffer at pH 7 is found to be a good water oxidation catalyst (WOC) showing electrocatalytic water oxidation current significantly greater than Co(II) in phosphate buffer under the same conditions owing to the…

Materials Science · Physics 2017-09-13 Subal Dey , Biswajit Mondal , Abhishek Dey

Furthering the understanding of the catalytic mechanisms in the oxygen reduction reaction (ORR) is critical to advancing and enabling fuel cell technology. In this work, we use multimodal operando synchrotron X-ray diffraction (XRD) and…

Catalysis is indispensable to chemical processes and relevant to many aspects of modern life. Owing to the intriguing electronic structures and good ionic properties, multivalent transition metal oxides have attracted attention as key…

Hydrogen production as a clean, sustainable replacement for fossil fuels is gathering pace. Doubling the capacity of Paris-CDG airport has been halted, even with the upcoming Olympic Games, until hydrogen-powered planes can be used. It is…

Materials Science · Physics 2023-09-20 Noëlie Duchamp , Chloé Feschet , Maria M. Tarragó , Philip E. Hoggan

I present here the results of the first principles studies of the adsorption energetics of the intermediates of the oxygen electro-reduction reaction (ORR) on the Se modified Ru(0001) surface. The calculations were performed for the 1/3 ML…

Chemical Physics · Physics 2012-04-01 Sergey Stolbov

Electrode-potential-induced dynamic coordination is an essential factor governing the performance of graphene-embedded single-atom catalysts (SACs). While previous studies have primarily centered on structural dynamics at the metal site,…

Materials Science · Physics 2026-02-05 Jiahang Li , Suhang Li , Chong Yan , Qinzhuang Liu , Jiajun Yu , Dongwei Ma

Fuel cells offer an alternative to burning fossil fuels, but use platinum as a catalyst which is expensive and scarce. Cheap, alternative catalysts could enable fuel cells to become serious contenders in the green energy sector. One…

Semiconducting oxides with reducible cations are ideal platforms for various functional applications in nanoelectronics and catalysts. Here we report an ultrathin monolayer alpha-MoO3 where tunable electronic properties and different gas…

Materials Science · Physics 2022-04-20 Changmeng Huan , Pu Wang , Binghan He , Yongqing Cai , Qingqing Ke

Superoxide-based non-aqueous metal oxygen batteries have received considerable research attention, as they exhibit high energy densities and round-trip efficiencies. The cycling performance, however, is still poor. Here we study the cycling…

Chemical Physics · Physics 2018-05-09 Tao Liu , Gunwoo Kim , Mike T. L. Casford , Clare P. Grey

Efficient and selective CO2 electroreduction into value-added chemicals and fuels emerged as a significant approach for CO2 conversion, however, it relies on catalysts with controllable product selectivity and reaction paths. In this work,…

Mesoscale and Nanoscale Physics · Physics 2022-10-26 Wei Xun , Xiao Yang , Qing-Song Jiang , Ming-Jun Wang , Yin-Zhong Wu , Ping Li

The CO_{2} electro-reduction reaction (CORR) is a promising avenue to convert greenhouse gases into high-value fuels and chemicals, in addition to being an attractive method for storing intermittent renewable energy. Although…

The oxygen reduction reaction (ORR) plays a pivotal role in clean energy generation and sustainable chemical production, particularly in the synthesis of hydrogen peroxide (H\textsubscript{2}O\textsubscript{2}). In this study,…

Single atom catalysts (SACs) based on 2D materials are identified to be efficient in many catalytic reaction. In this work, the catalytic performance of Pd/Pt embedded planar carbon nitride (CN) for CO oxidation, has been investigated via…

Chemical Physics · Physics 2020-01-08 Yongchao Rao , Xiangmei Duan

Wide proliferation of low temperature hydrogen fuel cell systems, a key part of the hydrogen economy, is hindered by degradation of the platinum cathode catalyst. Here, we provide a device level assessment of the molecular scale catalyst…