Article
Chemistry, Physical
Yu Zhou, Masahiro Shiraiwa, Masanori Nagao, Kotaro Fujii, Isao Tanaka, Masatomo Yashima, Laura Baque, Juan F. Basbus, Liliana Mogni, Stephen J. Skinner
Summary: The experimental investigation showed that calcium-doped layered perovskite compounds, BaNd1-xCaxInO4-x/2, exhibit significantly improved protonic conductivity, especially in humid environments. This study provides strong evidence that the doped compounds have potential applications as fast proton conductors.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Sang Eun Lee, Sung Yeb Jung, Jun Seo, Jong Hoon Joo, Jaekwang Lee, Young-Min Kim, Kyu Hyoung Lee, Yong In Kim, Hee Jung Park
Summary: The study developed a 2D titanium-oxide film with high protonic conductivity, demonstrating its electrical properties under different temperatures and environments. The film exhibits protonic conduction dominance at low temperatures and electronic conduction dominance at high temperatures, with significantly higher conductivity compared to conventional 3D titanium-oxide.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Shyamapada Nandi, Sujing Wang, Mohammad Wahiduzzaman, Vibhav Yadav, Kiran Taksande, Guillaume Maurin, Christian Serre, Sabine Devautour-Vinot
Summary: By utilizing a multicomponent ligand replacement strategy, the proton-conducting performances of a microporous Ti-based metal-organic framework were successfully tuned, introducing sulfonic acid groups as a source of Bronsted acidic sites. The best candidate with high proton conductivity values and structural integrity was further examined using ab initio molecular dynamics simulations, revealing the proton transfer mechanism through a fast Zundel/hydronium interconversion along a continuous H-bonded network.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Electrochemistry
Yang Li, Fei Ruan, Jinxiao Bao, Fenglong Zhang, Yonghe Zhang, Xiong Gao, Xiwen Song
Summary: In this study, a zinc-doped Al2O3 solid-state electrolyte was successfully prepared and its phase structure, morphology, and electrochemical properties were thoroughly investigated. The results showed that the electrolyte has a pure perovskite phase structure, uniform crystal grains, and high density. Protons were found to be the dominant charge carrier in a hydrogen-rich atmosphere, and the sample's conductivity increased with temperature.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Tyler Cosby, Christopher D. Stachurski, Robert A. Mantz, Paul C. Trulove, David P. Durkin
Summary: Ion dynamics and charge transport in various ionic liquids are investigated using multiple techniques. The study reveals an anion and temperature-dependent separation of molecular relaxation rates, showcasing significant heterogeneity in the local ion dynamics. The degree of dynamic heterogeneity correlates with the strengths of slow dielectric and mechanical relaxations, indicating the influence of mesoscale solvophobic aggregates. This correlation provides a new insight into the transport properties of ionic liquids.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Review
Chemistry, Multidisciplinary
Jie Gu, Lulu Jiang, Sara Adeeba Ismail, Hui Guo, Donglin Han
Summary: This review summarizes recent progress on the mechanism, materials, influential factors, and characterization methods of surface protonic conduction on oxide ceramics, and discusses its promising application in low temperature catalysis and solid-state electrochemical devices.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Physical
Zili He, Jingjing Nie, Kai Liu, K. Sivajee Ganesh, M. Akbar, Chen Xia, Xunying Wang, Wenjing Dong, Jianbing Huang, Baoyuan Wang
Summary: The BZY-BCFZY composite shows potential as an electrolyte for low-temperature solid oxide fuel cells, with optimized composite content resulting in maximum cell performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Peng Zhong, Kazuaki Toyoura, Lulu Jiang, Lubing Chen, Sara Adeeba Ismail, Naoyuki Hatada, Truls Norby, Donglin Han
Summary: RP oxides based on La2NiO4+delta show significant hydration and protonic conduction, making them potential positrode materials for PCECs. Unlike other materials, RP oxides can supply protons through interstitial oxide ions and exhibit triple conduction mechanism. Theoretical calculations support proton migration between interstitial oxide ions in the rock-salt layer. Experimental results show that hydration increases with the level and basicity of dopants in La2NiO4+delta and La(2-)(x)A(x)NiO(4+)(delta) (A = Ca, Sr, Ba). Hebb-Wagner blocking electrode measurements demonstrate significant partial protonic conductivity in all samples. The effect of doping on hydration and pH2O on p-type conductivity suggests that protons primarily reside on structural oxide ions, but the role of interstitial oxide ions cannot be ruled out in cases with oxygen excess. These findings provide insights for further study and optimization of RP oxides as positrode materials for PCECs.
ADVANCED ENERGY MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Xuefei Wu, Qingyin Wu
Summary: H5PW10V2O40.15H2O is a high-protonic conductor with excellent protonic conductivity, following the Vehicle mechanism, and shows increased conductivity at higher temperatures.
Article
Chemistry, Multidisciplinary
Yufei Song, Jiaming Chen, Meiting Yang, Meigui Xu, Dongliang Liu, Mingzhuang Liang, Yuhao Wang, Ran Ran, Wei Wang, Francesco Ciucci, Zongping Shao
Summary: This study proposes a nickel doping strategy to address the challenges faced by anode-supported protonic ceramic fuel cells (PCFCs). By using a small amount of nickel as a sintering aid, the sintering of proton-conducting oxides can be improved, and detrimental reactions between the anode and the electrolyte can be suppressed. Nickel doping also promotes the formation of Ni nanoparticles, enhancing the electrocatalytic activity of the anode and improving charge transfer.
Article
Chemistry, Inorganic & Nuclear
Bing-Xue Han, Xin Chen, Bo-Yang Liu, Jin-Peng Li, Gang Li
Summary: This study focuses on the synthesis of crystalline solid materials with high proton conductivity. Two one-dimensional MOFs were prepared using a multifunctional organic ligand. The results showed that the MOFs exhibited high proton conductivity and stability, making them promising candidates for proton conducting MOFs.
SOLID STATE SCIENCES
(2022)
Article
Engineering, Electrical & Electronic
Ameen A. Al-Zubaidi, Amel Abdallah Ahmed Elfaki, S. A. Al-Ghamdi, A. A. A. Darwish
Summary: In this study, TTBTP films were prepared using thermal evaporation technique, and the structural and surface morphology were analyzed by X-ray diffraction and scanning electron microscopy. It was found that the crystallite size increased with film thickness, and spherical granules appeared on the surface with increasing film thickness, leading to enhanced conductivity.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Nanoscience & Nanotechnology
Mohammad Nisar, Yecheng Ma, Shahid Khan, Rabia Khatoon, Gang Xu, Yong Liu, Gaorong Han
Summary: Based on density functional calculations, the impact of Fe (III) doping on BaZrO3 was explored, revealing a transition from a semiconducting cubic phase to a conducting tetragonal phase when Fe content exceeded 12.5%. Correct predictions of half-metallicity in BaFexZr1-xO3 were observed at doping concentrations of 12.5% and 25%.
Article
Electrochemistry
Hiroyuki Shimada, Yuki Yamaguchi, Matsuda Malik Ryuma, Hirofumi Sumi, Katsuhiro Nomura, Woosuck Shin, Yuichi Mikami, Kosuke Yamauchi, Yuki Nakata, Tomohiro Kuroha, Masashi Mori, Yasunobu Mizutani
Summary: The development of a bi-layered protonic ceramic fuel cell (PCFC) with a functional interlayer has been reported in this paper, showing improved electrochemical performance with higher power density and open-circuit voltage (OCV). The functional interlayer reduces cathode polarization resistance and suppresses current leakage in the PCFC, resulting in enhanced power density and OCV.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Electrochemistry
N. A. Tarasova, A. O. Galisheva, I. E. Animitsa, E. L. Lebedeva
Summary: The isovalent doping of Sc3+ -> In3+ enhances the oxygen-ionic and protonic conductivity of complex oxide BaLaInO4 with the Ruddlesden-Popper structure. Both BaLaInO4 and BaLaIn0.9Sc0.1O4 exhibit similar protonic conductivity in humid air atmosphere at 500 degrees C, with approximately 90-95% contribution from proton transfer.
RUSSIAN JOURNAL OF ELECTROCHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Ian Postuma, Patrizia Sommi, Agostina Vitali, Diyun Shu, Greta di Martino, Laura Cansolino, Cinzia Ferrari, Vittorio Ricci, Chiara Magni, Nicoletta Protti, Setareh Fatemi, Umberto Anselmi Tamburini, Silva Bortolussi, Saverio Altieri
Summary: In Boron Neutron Capture Therapy, the effectiveness relies on the concentration and distribution of boron within the tumour cells. This study demonstrates a technique to colocalize alpha particles and lithium ions with cells, using a neutron autoradiography technique. This method combines images of cells with tracks produced in a solid-state nuclear track detector.
APPLIED RADIATION AND ISOTOPES
(2021)
Article
Physics, Applied
Angelica Baldini, Michele Petrecca, Claudio Sangregorio, Umberto Anselmi-Tamburini
Summary: The study found that highly pure nanostructured ferrite particles can be synthesized using a simple method and densified through high-pressure field-assisted sintering to obtain materials with complex microstructures. During sintering, there was no change in phase composition, and a high degree of densification while maintaining nanometric crystallite size was achieved by using high uniaxial pressure with relatively low sintering temperatures and times.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Biochemistry & Molecular Biology
Roberta Dal Magro, Agostina Vitali, Stefano Fagioli, Alberto Casu, Andrea Falqui, Beatrice Formicola, Lorenzo Taiarol, Valeria Cassina, Claudia Adriana Marrano, Francesco Mantegazza, Umberto Anselmi-Tamburini, Patrizia Sommi, Francesca Re
Summary: Vascular oxidative stress exacerbates the progression of Alzheimer's disease, but antioxidant compounds like cerium oxide nanoparticles may help improve vascular function. CNP restored ROS levels and increased uptake in brain cells exposed to A beta, potentially offering protection against neurotoxicity.
Article
Biology
Ian Postuma, Sara Gonzalez, Maria S. Herrera, Lucas Provenzano, Michele Ferrarini, Chiara Magni, Nicoletta Protti, Setareh Fatemi, Valerio Vercesi, Giuseppe Battistoni, Umberto Anselmi Tamburini, Yuan Hao Liu, Leena Kankaanranta, Hanna Koivunoro, Saverio Altieri, Silva Bortolussi
Summary: Novel criteria of clinical potential and safety have been introduced to evaluate neutron beams for BNCT, showing that even beams rejected by traditional physical measurements can have comparable clinical performance.Radiobiological and dosimetric criteria are effective tools in selecting safe and effective beams for patient treatment, even when standard physical recommendations are not met.
Article
Physics, Applied
Xuan Li, Ying Tu, Simona Pace, Umberto Anselmi-Tamburini, Joe Briscoe
Summary: The core-shell structure with ZnO cores effectively suppresses surface defects, particularly in ZnO synthesized in an OH- rich environment, where the TiO2 shell coating has a stronger passivation effect on the surface defects. Both PL and XPS results confirm the effectiveness of the TiO2 shell coating in passivating surface defects of ZnO nanostructures.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
S. Cisternino, E. Cazzola, H. Skliarova, J. Amico, M. Malachini, G. Gorgoni, U. Anselmi-Tamburini, J. Esposito
Summary: The study explored using Spark Plasma Sintering (SPS) technique to manufacture yttrium solid targets for efficient Zr-89 radioisotope production. Results showed that the production yield and quality of Zr-89 obtained from SPS manufactured targets were comparable to those from standard yttrium foil targets.
NUCLEAR MEDICINE AND BIOLOGY
(2022)
Article
Nuclear Science & Technology
Gabriele Parisi, Andrea Pola, Davide Bortot, Davide Mazzucconi, Giovanni D'Angelo, Chiara Magni, Ian Postuma, Silva Bortolussi, Nicoletta Protti, Saverio Altieri, Umberto Anselmi Tamburini, Valerio Vercesi, Stefano Agosteo
Summary: This paper presents a novel neutron spectrometer called ACSpect, which consists of a two-stages monolithic silicon telescope detector and an organic scintillator. It is capable of high-resolution measurements in the energy range of 250keV-4MeV.
RADIATION MEASUREMENTS
(2022)
Letter
Multidisciplinary Sciences
Martina Fracchia, Mauro Coduri, Maela Manzoli, Paolo Ghigna, Umberto Anselmi Tamburini
NATURE COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Giorgia Pellavio, Patrizia Sommi, Umberto Anselmi-Tamburini, Maria Paola DeMichelis, Stefania Coniglio, Umberto Laforenza
Summary: This study analyzed the effect of cerium oxide nanoparticles (CNPs) on the functioning of aquaporins (AQPs). The results showed that CNPs increased the diffusion of hydrogen peroxide (H2O2) in cells, especially through AQP8. These findings suggest that CNPs could potentially be used as a pharmaceutical agent in diseases involving oxidative stress.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Energy & Fuels
M. Fracchia, D. Callegari, M. Coduri, U. Anselmi-Tamburini, M. Manzoli, E. Quartarone, P. Ghigna
Summary: Various high and medium entropy oxides with rock salt structures were prepared and studied as anodes for lithium batteries. The reaction mechanisms of these systems are complex and involve conversion reactions. The capacity and reduction potential of these materials depend on the number of components and microstructure of the initial materials. However, the dependence cannot be rationalized based on simple stability logic.
FRONTIERS IN ENERGY RESEARCH
(2022)
Article
Biology
Agostina Vitali, Maria Paola Demichelis, Greta Di Martino, Ian Postuma, Silva Bortolussi, Andrea Falqui, Chiara Milanese, Chiara Ferrara, Patrizia Sommi, Umberto Anselmi-Tamburini
Summary: In this study, multifunctional boron carbide nanoparticles stabilized with polyacrylic acid (PAA) and a gadolinium (Gd)-rich solid phase were synthesized and their biological activity was evaluated. The incorporation of a fluorophore (DiI) allowed for confocal microscopy imaging of the nanoparticles. Novel correlative microscopy techniques were employed to analyze the interaction and activity of these fluorescent Gd-containing B4C nanoparticles (FGdBNPs) with cultured cells. The results indicate that these nanoparticles have the potential to achieve high boron concentration in tumor cells.
Article
Nanoscience & Nanotechnology
Ketan Lohani, Himanshu Nautiyal, Narges Ataollahi, Umberto Anselmi-Tamburini, Carlo Fanciulli, Paolo Scardi
Summary: The effect of Ag doping on the thermoelectric properties of Cu2SnS3 (CTS) was investigated. Various Cu2Ag(x)Sn(1-x)S3 (0.05 <= x <= 0.25) samples were synthesized and their structural and transport properties were studied. The x = 0.15 sample showed a 10-fold higher power factor than the undoped CTS, and both the x = 0.125 and x = 0.15 samples exhibited the highest zT value of 0.8 at 723 K. The increase in thermal conductivity of Cu2Ag(x)Sn(1-x)S3 samples with Ag substitution was found to be caused by the reduction in scattering of phonons due to the incorporation of Ag. Formation energy calculations revealed the reason for the structural transformation of CTS and similar diamond-like structures towards high symmetry polymorphs by external doping. The increase in zT value was attributed to the optimization of the band gap and the weighted mobility.
ACS APPLIED NANO MATERIALS
(2023)
Article
Electrochemistry
Michele Montalbano, Daniele Callegari, Umberto Anselmi Tamburini, Cristina Tealdi
Summary: Transition metal-based sodium fluoro-perovskite materials were investigated as cathode materials for Na-ion batteries. The study combined experimental and computational techniques to investigate structures, defects, and intercalation properties. The results showed the possibility of modulating the sample's morphology and highlighted the correlation between structure and computational data for controlling both ionic and electronic conductivity.
Article
Materials Science, Multidisciplinary
D. Callegari, M. Coduri, M. Fracchia, P. Ghigna, L. Braglia, U. Anselmi Tamburini, E. Quartarone
Summary: The ever-growing demand for high-capacity Li-ion batteries requires electrode materials that are environmentally friendly, Co-free, secure, and durable. In this study, a novel dual-doping strategy was proposed to design LiFexMn2-x-yTiyO4 (LFMT) as high-capacity cathode materials. The substitution of Mn with Fe and Ti suppressed the unwanted distortion and improved the capacity and stability of the batteries.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Physics, Multidisciplinary
C. Magni, M. Ferrarini, I. Postuma, N. Protti, S. Fatemi, C. Gong, U. Anselmi-Tamburini, V. Vercesi, G. Battistoni, S. Bortolussi
Summary: Boron Neutron Capture Therapy (BNCT) is a type of radiotherapy used to treat deep-seated tumors, targeting cancer cells using a borated drug before irradiating the patient with low-energy neutrons. This study presents neutron activation analysis of different aluminum fluoride powders for potential use in the Beam Shaping Assembly (BSA) material. Additionally, Monte Carlo calculations for out-of-field dosimetry are discussed, which are crucial for assessing the safety of clinical neutron beams in terms of dose absorption by surrounding organs.
NUOVO CIMENTO C-COLLOQUIA AND COMMUNICATIONS IN PHYSICS
(2021)