Results 71 to 80 of about 9,951 (268)

Tailored D‐π Conjugation Boosts Piezocatalytic CO2 Reduction in a Platinum(II)‐Acetylide Framework

Advanced Science, EarlyView.
The highly conjugated metalII‐acetylide framework demonstrates efficient ultrasound‐driven conversion of CO2 to CO. The piezoelectric field generated by ultrasound facilitates electron transfer from the tetraphenylene π‐column to the MII‐bis(acetylide) moiety, enabling CO2 activation. Compared to PdII‐ and NiII‐based analogues, the stronger d–π orbital
Mude Zhu, Yingtang Zhou, Kai Wang, Xiaoyun Fan, Yang Ding, Wai‐Yeung Wong, Linli Xu   +6 more
wiley   +1 more source

Area normalization of HERFD-XANES spectra

Journal of Synchrotron Radiation
The normalization of X-ray absorption near-edge structure (XANES) spectra is required for comparing spectral features and extracting quantitative information in analytical techniques such as linear combination analysis, principal component analysis and multivariate curve resolution. Most published data are normalized to the edge-jump, but normalization
Luca Bugarin, Hugo Alexander Suarez Orduz, Pieter Glatzel   +2 more
openaire   +6 more sources

Rare‐Earth Mediated Engineering in ZnSe@ZnS:Eu3+ to Simultaneously Achieve Structural Modulation and Atomic Eu Doping Sites for X‐Ray Imaging

Advanced Science, EarlyView.
A dual hard‐base anchoring strategy was developed to synthesize ZnSe@ZnS:Eu3+ quantum dots, leveraging fluoride‐oleylamine interactions to create surface atomic Eu doping sites. By precisely tuning temperature, Eu3+ concentration, and fluoride levels, we obtain morphologies ranging from tip growth to coupled flower‐like structures.
Jicun Ma, Chenhao Yang, Jiada Fan, Haorong Jiao, Jiawang Liu, Jialiang Xu, Hui Cai, Yinghui Wang, Boyuan Shen, Jiabin Cui   +9 more
wiley   +1 more source

Efficient Direct Recycling of Spent Batteries: Integrated Lithiation and Delamination

Advanced Science, EarlyView.
An integrated process for the delamination and relithiation of spent cathodes, LixNi0.6Co0.2Mn0.2O2 and LixFePO4, under open‐air conditions is proposed. The transition‐metal (Ni) oxidation state in the cathode is reduced by the oxidation of diethylene glycol, facilitating relithiation. Glycol aldehyde formation induces 100% electrode delamination.
Jeonghwan Song, Seok Hyun Song, Dokyeong Han, Jaehyun Noh, Jayoung Kim, Min Jeong Kim, Hayong Song, Jeong‐Sun Park, Jaekook Kim, Jiyoung Ma, Jinju Song, Jung‐Je Woo   +11 more
wiley   +1 more source

Determination of molybdenum oxidation state on the mechanochemically treated MoO₃

Хімія, фізика та технологія поверхні, 2015
The molybdenum oxidation degree in the MoO3 samples after mechanochemical treatment in various media (air, water, ethanol) has been studied by titration, EPR and XANES methods.
N. S. Kopachevska, A. K. Melnyk, I. V. Bacherikova, V. A. Zazhigalov, K. Wieczorek-Ciurowa   +4 more
doaj   +1 more source

Near‐Unity Selectivity Inversion Between CO2 Electroreduction and H2 Evolution via Atomic Coordination Editing

Advanced Science, EarlyView.
Atomic coordination editing functions as an on/off switch that toggles single‐atom catalysts between CO2 electroreduction and hydrogen evolution. ABSTRACT Precise atomic coordination editing of single‐atom catalysts (SACs) provides an effective strategy to tune their electronic structures and catalytic selectivity. Yet, achieving near‐unity selectivity
Yukun Zhao, Yuanyuan He, Mengyu Duan, Peng Yin, Jinxing Chen, Xu Han, Jie Yang, Yulin Wang, Xingjie Fu, Shibo Xi, Chuncheng Chen, Jiong Lu   +11 more
wiley   +1 more source

L3-edge X-ray spectroscopy of rhodium and palladium compounds

Journal of Synchrotron Radiation
L3-edge high-energy-resolution fluorescence-detection X-ray absorption near-edge structure (XANES) spectra for palladium and rhodium compounds are presented, with focus on their electronic structures. The data are compared with transmission XANES spectra
Hugo Alexander Suarez Orduz, Luca Bugarin, Sarina-Lena Heck, Paolo Dolcet, Maria Casapu, Jan-Dierk Grunwaldt, Pieter Glatzel   +6 more
doaj   +1 more source

Robust Amorphous MOF‐Based Aerogels Digital Biosensor for Sensitive Detection of Organophosphate Pesticides

Advanced Science, EarlyView.
We report a robust aerogel digital biosensor by integrating an enzyme‐mediated amorphous MOF within an aerogel matrix for on‐site pesticide detection. The enzyme‐mediated assembly strategy enables in situ tailoring of MOF into a porous amorphous structure, achieving both high stability and activity.
Changshun Su, Xiangyu Zhai, Houru Li, Yijie Wang, Hongxia Li, Yueyao Jiang, Geyu Lu, Xu Yan   +7 more
wiley   +1 more source

Noise-robust analysis of X-Ray absorption near-edge structure based on poisson distribution

Science and Technology of Advanced Materials: Methods
We demonstrate that the noise tolerance of X-ray absorption near-edge structure (XANES) analysis can be improved by reconsidering the noise model. XANES measurement is a powerful technique to investigate the structure and electronic state of materials ...
Shuhei Kashiwamura, Shun Katakami, Taiga Yamasaki, Kazunori Iwamitsu, Hiroyuki Kumazoe, Kenji Nagata, Toshihiro Okajima, Ichiro Akai, Masato Okada   +8 more
doaj   +1 more source

Dynamic multiple-scattering treatment of X-ray absorption: Parameterization of a new molecular dynamics force field for myoglobin

Structural Dynamics, 2018
We present a detailed analysis of the X-ray absorption near-edge structure (XANES) data on the Fe K-edge of CO Myoglobin based on a combined procedure of Molecular Dynamics (MD) calculations and MXAN (Minuit XANes) data analysis that we call D-MXAN.
Giovanni Chillemi, Massimiliano Anselmi, Nico Sanna, Cristiano Padrin, Lodovico Balducci, Marco Cammarata, Elisabetta Pace, Majed Chergui, Maurizio Benfatto   +8 more
doaj   +1 more source