Results 81 to 90 of about 95,938 (262)

Engineering MnNiPx Cathode via Dual Role of Mn: Simultaneous Enhancement of Activity and Intermittent Operation Durability

Advanced Functional Materials, EarlyView.
Engineering MnNiPx cathodes through the dual role of Mn simultaneously improves hydrogen evolution reaction activity and intermittent‐operation durability. Mn preferentially oxidizes to protect Ni–P sites from irreversible oxidation, while metallic Mn incorporation enhances the HER kinetics of Ni–P active layer.
Ik‐Sun Kim, Jungwoo Choi, Sechan Lee, Jung Eun Park, Changsoo Lee, Jongsu Seo, Ji Hee Kwon, Gisu Doo, Hyeonjung Park, Dongju Lee, Won‐Chul Cho, Changhee Kim, Nosang Vincent Myung, Sang Soo Han, Byeong‐Seon An, MinJoong Kim, Hyun‐Seok Cho   +16 more
wiley   +1 more source

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

Advanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler, Lucía Vizcaíno‐Anaya, Ahmad Tayyebi, José Manuel Vila‐Fungueiriño, María del Carmen Giménez‐López   +4 more
wiley   +1 more source

Nano‐Scale Characterization of Impurities Segregation in Solid Oxide Electrolysis Cells

Advanced Functional Materials, EarlyView.
Cathodic polarization induces impurity segregation in Ni, forming an amorphous Na─Al─Si─O amorphous phase at grain boundaries. Under ultralow oxygen partial pressure, multiple elements dissolve, migrate, and reoxidize within the metal. A patterned model system provides direct nanoscale evidence, clarifying the mechanism of polarization‐driven impurity ...
Zhongtao Ma, Qingjie Wang, Bowen Li, Vasileios Bilalis, Søren Bredmose Simonsen, Ming Chen   +5 more
wiley   +1 more source

Li‐Ion Battery Anodes Combining Intercalation and Plating Energy Storage Mechanisms through SiOx/C Coated Graphite

Advanced Functional Materials, EarlyView.
A thin SiOx/C coating enables graphite to stably support Li intercalation and Li plating in a hybrid anode. Paired with an optimized localized high‐concentration electrolyte, the full cell achieves 584 mAh g−1 and 86% capacity retention after 500 cycles, highlighting a practical route toward higher‐energy lithium‐ion batteries.
Ruhan He, Qiu He, Zhuo Chen, Rui Wang, Liang Zhou, Yeonguk Son, Liqiang Mai, Michael De Volder   +7 more
wiley   +1 more source

General Synthesis of Amorphous Pd‐Based Nanoparticles Towards Highly Efficient Nitrate‐to‐Ammonia Electrocatalysis

Advanced Functional Materials, EarlyView.
A family of amorphous palladium‐based multi‐component phosphides nanoparticles, synthesized via a robust one‐step wet‐chemical method, overcoming the immiscibility of different elements and the difficulty in forming a stable, disordered structure. When applied in the electrochemical nitrate reduction reaction, these nanocatalysts effectively suppress ...
Lei Xu, Chuhao Luan, Mingzi Sun, Weiwei Chen, Xiaozhi Liu, Chen Ma, Long Zheng, Gang Wang, Peng Han, Ping Gu, Xiao Wang, Chenhao Shu, Cheng Lyu, Zhenyu Zhang, Nailiang Yang, Hongyan He, Xiaohong Li, Dong Su, Bolong Huang, Wenjun Zhang, Ye Chen   +20 more
wiley   +1 more source

Mediated Electrochemical Oxidation of Pollutants in Crude Oil Desalter Effluent

International Journal of Electrochemical Science, 2018
Wastewater samples from a crude oil desalting process were subjected to extensive physicochemical characterization and electrolysis to evaluate the two main reaction pathways, electrochemical incineration and mediated oxidation, that occur during an ...
F. García-Lugo, A. Medel, J.L.Jurado Baizaval, P.Mijaylova Nacheva, A.Durán Moreno, M.J.Cruz Gómez, L.Godínez Mora-Tovar, Y. Meas   +7 more
doaj   +1 more source

Electrolyte‐Induced Cu+ Preservation Results in a Selectivity Switch of Electrocatalytic CO2 Reduction at a Copper‐Organic Framework as Electrocatalyst

Advanced Functional Materials, EarlyView.
The active role of KCl as a neutral electrolyte enables switching the selectivity on a Cu organic framework from C1 to C2+ products during electrocatalytic CO2 reduction. ABSTRACT We introduce a copper‐nicotinate (Cu‐NA) framework as a halogenide‐stabilized Cu+/Cu0 pre‐catalyst for electrocatalytic CO2 reduction with high C2+ selectivity in a “neutral”
Anirudha Shekhawat, Muhammad Adib Abdillah Mahbub, Lejing Li, Bashir Eid, Ridha Zerdoumi, Sabine Seisel, Carla Santana Santos, Nini Zhang, Thomas Quast, Xin Wang, Wolfgang Schuhmann, Debanjan Das   +11 more
wiley   +1 more source

On-line Analysis of the Electrochemical Oxidation of Dopamine in High Concentration Phosphate Buffer Solution by Electrochemical Mass Spectrometry [PDF]

Zhipu Xuebao
Electrochemical mass spectrometry is an important technique for studying the mechanism of electrochemical reactions. Mass spectrometry has the advantages of high detection sensitivity, high detection throughput and high specificity, which enables ...
LIN Jia-mei, WANG Hao-tian, LI Hui, YU Zhen-dong, SONG Li-li, ZHU Yu-ling, XU Jia-quan   +6 more
doaj   +1 more source

Redirecting Nano‐Silicon Agglomeration: Dual‐Carbon Design Triggers Self‐Adaptive Nanoporous Si Sponge for Enhanced Lithium Storage

Advanced Functional Materials, EarlyView.
This study addresses silicon anode degradation using an engineered nSi/Gr/C dual‐carbon matrix. By restricting SEI infiltration, the architecture redirects silicon agglomeration into a beneficial structural self‐adaptive activation. During cycling, silicon nanoparticles self‐organize into a resilient nanoporous sponge. This dynamic network accommodates
Wei Zhang, Yuxia Zhong, Wen Ren, Lei Zhang, Yexin Pan, Mitch Guijun Li, Gary J. Cheng, Ruohan Yu   +7 more
wiley   +1 more source

Direct electrochemical oxidation of S-captopril using gold electrodes modified with graphene-AuAg nanocomposites

International Journal of Nanomedicine, 2014
Florina Pogacean,1 Alexandru R Biris,2 Maria Coros,1 Mihaela Diana Lazar,1 Fumiya Watanabe,3 Ganesh K Kannarpady,3 Said A Farha Al Said,4 Alexandru S Biris,3 Stela Pruneanu1 1Department of Isotopic Physics and Technology, 2Department of Mass Spectrometry,
Pogacean F, Biris AR, Coros M, Lazar MD, Watanabe F, Kannarpady GK, Al Said SA Farha, Biris AS, Pruneanu S   +8 more
doaj