Results 71 to 80 of about 3,491 (200)

Decoupling Chemical and Mechanical Contributions to Capacity Fading in Ni‐Rich Cathodes for Sulfide‐Based All‐Solid‐State Batteries

Advanced Energy Materials, EarlyView.
Ni‐rich cathodes in sulfide‐based ASSBs undergo intertwined (electro)chemical and mechanical degradation. Here, a new diagnostic framework is presented to decouple each contribution by partitioning capacity fading into charge and discharge fading.
Jangwhan Seok, Chanyou Chung, Hyunbeom Lee, Subin Ahn, Seongeun Lee, Sangbin Park, Sunhyun Hwang, Jaeyoung Kim, Jeonghyun Seo, Sungwoo Noh, Juyeong Seong, Sangheon Lee, Won‐Sub Yoon   +12 more
wiley   +1 more source

S‐Scheme Charge Separation Enables Photocarrier‐Regulated Aqueous NH4+ Storage in g‐C3N4@WO3 Heterojunctions

Angewandte Chemie, EarlyView.
Light irradiation activates the g‐C3N4@WO3 S‐scheme heterojunction, where the built‐in electric field drives charge separation to generate high‐energy carriers, facilitating NH4+ adsorption and enhancing electron/ion transport for high‐capacity, stable aqueous NH4+ storage.
Yue Zhang, Yulong Jia, Fanfang Sun, Jichi Liu, Bing Tang, Hui Li, Wubin Du, Hongge Pan, Zi‐Hang Huang, Tianyi Ma   +9 more
wiley   +2 more sources

Multifunctional Matrix‐Activated Electrodes Enabling Efficient Proton Transport and Durable Low‐Pt Operation for High‐Temperature Proton Exchange Membrane Fuel Cells

Advanced Energy Materials, EarlyView.
This work introduces a CeHP‐enabled multifunctional matrix‐activated electrode (MME) for high‐temperature PEM fuel cells, forming an electrochemically and mechanically functional matrix within the catalyst layer. The design increases peak power density by 38% and reduces voltage decay by 62% at 240 °C, while using only 40% of the Pt loading of a ...
Gyeongseok Gwak, Sunjin Park, Joonbyum Kim, Hena Lee, Jihyeon Ok, Chae Young Lee, JunHwa Kwon, Jong Geun Seong, Sung Pil Yoon, Suk‐Woo Nam, Hansung Kim, Katie Heeyum Lim, So Young Lee   +12 more
wiley   +1 more source

Elucidating Photo‐Kinetic Control in Photothermal Reverse Water‐Gas Shift Reaction

Angewandte Chemie, EarlyView.
Light directly regulates the rate‐determining step (RDS) in photothermal catalysis. In a Mars–van Krevelen (MvK)‐type reverse water‐gas shift (RWGS) reaction over In‐doped MoO2, light shifts the RDS from the H2‐related reduction half‐reaction to the CO2‐related oxidation half‐reaction, enhancing catalytic activity and lowering the apparent activation ...
Junchuan Sun, Rui Song, Chang Xu, Xue Ding, Wanguo Gao, Athanasios A. Tountas, Zhe Lu, Jiakun Wang, Zeshu Zhang, Xiaolu Zhuo, Yingfang Yao, Zhigang Zou, Geoffrey A. Ozin, Lu Wang   +13 more
wiley   +2 more sources

Phase transition from fcc to bcc structure of the Cu-clusters during nanocrystallization of Fe85.2Si1B9P4Cu0.8 soft magnetic alloy

AIP Advances, 2014
A role of Cu on the nanocrystallization of an Fe85.2Si1B9P4Cu0.8 alloy was investigated by X-ray absorption fine structure (XAFS) and transmission electron microscopy (TEM). The Cu K-edge XAFS results show that local structure around Cu is disordered for
Masahiko Nishijima, Makoto Matsuura, Kana Takenaka, Akira Takeuchi, Hironori Ofuchi, Akihiro Makino   +5 more
doaj   +1 more source

Surface‐Functionalized MXene for Enhanced Photocatalytic CO2 Reduction

Advanced Energy Materials, EarlyView.
Poly(catechol/p‐cresol)‐functionalized MXene (f‐MXene) enhances oxidation stability while preserving conductivity, enabling efficient interfacial electron transfer in a Cu/f‐MXene/reduced TiO2 photocatalyst. Strong Cu–f‐MXene synergy promotes CO2 activation and selective CH4 production, achieving a CH4 yield of 18.1 µmol g−1 (>200 × vs.
Dongyun Kim, Young Ho Park, Dong Gyu Lee, Kyuseok Lee, Junho Lee, Chaelin Shin, Jaeyoung Kim, B. Yamunasree, Soomin Han, Eunhee Gong, Hyeonjong Jeong, Min Gyu Kim, Chang‐Hee Cho, Seung Jun Lee, Soorathep Kheawhom, G. Murali, Tae Kyung Lee, Insik In, Su‐Il In   +18 more
wiley   +1 more source

Engineering Atomically Precise Cu4I4 Nanoclusters With Integrated Adsorption and Hydrogenation Functions for Efficient Photocatalytic Nitrate‐to‐Ammonia Conversion

Angewandte Chemie, EarlyView.
Efficient photocatalytic nitrate‐to‐ammonia conversion is achieved over an atomically precise Cu4I4 motif through dual‐site cooperation. Lewis‐acidic Cu centers promote nitrate adsorption and activation, while adjacent I sites facilitate active hydrogen generation for stepwise hydrogenation.
Wanting Zhang, Yuehua Li, Junjie Jin, Chunwei Dong, Xi Cao, Xingchi Li, Xuanjun Wu, Jiaqi Wang, Atta Ullah, Gaspar Ferreyra Vaggione, Rodrigo A. Iglesias, Yun Chen, Emiliano Cortés, Dengsong Zhang   +13 more
wiley   +2 more sources

Fastosh: a software for the treatment of XAFS datasets of environmental relevance or acquired in operando conditions

Journal of Synchrotron Radiation
Fastosh is a freeware dedicated to the treatment of X-ray absorption fine-structure (XAFS) spectroscopy data. The program features functions that are particularly suitable for geochemical and environmental applications and treatment of XAFS datasets ...
Gautier Landrot, Emiliano Fonda
doaj   +1 more source

Structure and Spectroscopic Characterisation of Phenanthroline‐Based Iodobismuthate(III) Complexes Utilised for Raw Acoustic Signal Classification

Advanced Intelligent Discovery, EarlyView.
Memristors based on trimethylsulfonium (phenanthroline)tetraiodobismuthate have been utilised as a nonlinear node in a delayed feedback reservoir. This system allowed an efficient classification of acoustic signals, namely differentiation of vocalisation of the brushtail possum (Trichosurus vulpecula).
Ewelina Cechosz, Gisya Abdi, Andrzej Sławek, Marlena Gryl, Konrad Szaciłowski   +4 more
wiley   +1 more source

Polypyridyl Coordination Motifs as Precursors for Ordered Carbonaceous Frameworks Toward High‐Density Ru Single‐Atom Catalysts

Angewandte Chemie, EarlyView.
Here, we introduce a molecular design principle that fundamentally expands the bottom‐up synthesis of single‐atom catalysts (SACs). Coordinatively flexible polypyridyl units enable bottom‐up formation of ordered carbonaceous frameworks containing atomically dispersed Ru (∼11 wt%) by simple carbonization.
Koki Chida, Tan‐Hao Shi, Takeharu Yoshii, Yuichiro Hayasaka, Yu Gao, Hao Zhang, Nikolay Kosinov, Shigehisa Akine, Kazuhide Kamiya, Kaining Li, Yoshifumi Kondo, Yasutaka Kuwahara, Tomoki Ogoshi, Hirotomo Nishihara   +13 more
wiley   +2 more sources