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Barbara Lavina on Muck Rack

Barbara Lavina

As seen in: Nature, Royal Society of Chemistry, Physical Review B
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Articles

Crossover dynamics of non-Fickian ionic diffusion in solids

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By Gangbin Yan, Pierfrancesco Ombrini, Zhichu Tang, Shakul Pathak, Maoyu Wang, Barbara Lavina, Alexandros Vasileiadis, Suin Choi, Mingzhan Wang, Qizhang Li, Esen E. Alp, Hua Zhou, Martin Bazant, Qian Chen, Marnix Wagemaker, Chong Liu, Dongchen Ying
| Nature Verified
Abstract Ionic diffusion in solids underpins energy storage, electronics, and catalysis, yet conventional diffusion models often fail to capture complexities arising from confinement, crystallographic disorder, lattice distortions, and coupled transport with phonons or electrons. These challenges are particularly pronounced in battery materials, where ionic and electronic carriers move together, complicating the interpretation of electrochemical measurements.
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57Fe Nuclear Resonance Vibrational Spectroscopic Studies of Tetranuclear Iron Clusters Bearing Terminal Iron(III)-Oxido/Hydroxido Moieties

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By Jin Xiong, Christopher Reed, Barbara Lavina, Michael S. Hu
| Royal Society of Chemistry Verified
57Fe Nuclear Resonance Vibrational Spectroscopic Studies of Tetranuclear Iron Clusters Bearing Terminal Iron(III)-Oxido/Hydroxido Moieties 57Fe nuclear resonance vibrational spectroscopy (NRVS) has been applied to study a series of tetranuclear iron ([Fe4]) clusters based on a multidentate ligand platform (L3-) anchored by a 1,3,5-triarylbenzene linker and pyrazolate or (tertButylamino)pyrazolate ligand (PzNHtBu-).
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Tuning the thermal activation atmosphere breaks the activity–stability trade-off of Fe–N–C oxygen reduction fuel cell catalysts - Nature Catalysis

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By Yachao Zeng, Chenzhao Li, Michael J. Zachman, David Cullen Verified, Raphael Hermann, Barbara Lavina, Marcos Lucero, Zhenxing Feng, Guofeng Wang, Jian Xie, Deborah Myers, Bingzhang Zhang
| Nature Verified
Abstract Fe–N–C catalysts are the most promising platinum group metal-free oxygen-reduction catalysts, but they suffer from a low density of active metal sites and the so-called activity–stability trade-off. Here we report an Fe–N–C catalyst prepared by adding an optimal amount of H2 to the traditional inert atmosphere during the thermal activation.
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