Results 181 to 190 of about 11,611 (263)

Microenvironment Engineering as a Design Principle for Suppressing Catalyst Metal Loss

Angewandte Chemie, EarlyView.
Under ionomer‐containing microenvironments, nonporous carbon supports enhance the retention of dissolved platinum ions, whereas porous carbon supports promote pore‐confined redeposition and mitigate net platinum loss. ABSTRACT Stability losses in platinum electrocatalysts arise from dissolution, redeposition, and restructuring processes that are ...
Sumin Lim, Guilherme V. Fortunato, Xiangyu You, Wei Zhao, Marc Ledendecker   +4 more
wiley   +1 more source

High-performance CeO₂/rGO hybrid nanostructures as bifunctional electrocatalysts for water-splitting. [PDF]

RSC Adv
Staline C JA, Magdalane CM, Ramalingam G, Wabaidur SM, Dwivedi J.   +4 more
europepmc   +1 more source

Coupled Fe3O4‐Cluster Precipitates and Single Fe‐Atom Catalysts Can Boost Oxygen Reduction via Concomitantly Accelerated Water Dissociation

Angewandte Chemie, EarlyView.
Fe3O4 clusters can be precipitated onto Fe–N–C SACs through a residual‐oxygen‐assisted precipitation approach. Compelling evidence, including operando spectroscopy and ab initio calculations, suggests that Fe3O4‐cluster precipitates not only induce asymmetric electronic structures of Fe‐N4 active center to optimize the OH* adsorption, but also ...
Cheng‐Kai Du, Xiongyi Liang, Fei‐Xiang Ma, Yutong Li, Zheng‐Qi Liu, Long Ma, Zeng Li, Liang Zhen, Yan Huang, Xiao Cheng Zeng, Cheng‐Yan Xu   +10 more
wiley   +1 more source

Dual-mode <i>in situ</i> monitoring of CO₂ conversion via pH indicator and UV-vis spectroscopy. [PDF]

iScience
Xie Q, Guo B, Zhang Y, Yang T, Cui C, Liu Z, Yao H, Li B, Ren W.   +8 more
europepmc   +1 more source

Ketal Protection of Glycerol for Selective Electrosynthesis of Glyceric Acid in Highly Alkaline Media

Angewandte Chemie, EarlyView.
Using a ketal‐protected glycerol derivative (solketal) as the oxidation substrate enables site‐selective electrooxidation that suppresses C–C cleavage on non‐noble catalysts. Highly alkaline conditions promote reactive solketal alkoxide formation, weaken the Cα─H bond to facilitate dehydrogenation, and buffer local acidification, enabling a record‐high
Jiamin Wang, Baokun Zhang, Kanglei Pang, Egon Campos dos Santos, Hong Liu, Mats Johnsson, Xiaowen Yu   +6 more
wiley   +1 more source

Interface charge engineering of ternary RuCoMo oxide nanofibers toward high-current-density water electrolysis. [PDF]

Chem Sci
Zhang L, Xia M, Li W, Ren S, Deng L, Zhang S, Huang L, Song W, Lu X.   +8 more
europepmc   +1 more source

Functionalization‐Mediated Synthesis of Bridge‐Coordinated Fe Atoms on MoS2 Nanosheets for PEM Water Electrolyzers

Angewandte Chemie, EarlyView.
We report a functionalization‐mediated strategy to synthesize robust iron (Fe) atoms selectively coordinated at bridge sites on molybdenum disulfide (MoS2) nanosheets. The resulting b‐Fe‐MoS2 catalyst exhibits enhanced activity and durability for the hydrogen evolution reaction in proton exchange membrane water electrolyzers compared to atop ...
Zakaria Anfar, Haitham Maslouh, Yuwei Yang, Mathilde Moderne, Jiefeng Liu, Loïc Assaud, Mikhael Bechelany, Chrystelle Salameh, Kun Qi, Yuying Meng, Huali Wu, Ji Li, Nicholas M. Bedford, Damien Voiry   +13 more
wiley   +1 more source

Multifunctional PAA- and PEG-modified Co₃V₂O₈ nanoparticles for enhanced RhB degradation, OER activity, and antibacterial activity: experimental validation and computational insight. [PDF]

Nanoscale Adv
Munir A, Imran M, Shahzadi I, Haider A, Mateen Z, Ul-Hamid A, Albassami NA, Ikram M.   +7 more
europepmc   +1 more source

Ordered Pt3Mn Intermetallic Nanoparticles Supported on Atomically Dispersed Mn–N–C as Electrocatalysts for Fuel Cells

Angewandte Chemie, EarlyView.
Ordered L12‐Pt3Mn intermetallic alloys are uniformly deposited onto atomically dispersed Mn–N–C supports. The synergistic effect between MnN4 sites and Pt3Mn elevates interfacial binding strength and dissolution barriers while favorably weakening *OH adsorption. It delivers exceptional catalytic activity and stability in fuel cells, serving as an ideal
Gongjin Chen, Tianshuai Wang, Xiaoyi Qiu, Shiyuan Liu, Cunpu Li, Zidong Wei, Wei Xing, Haijiang Wang, Minhua Shao   +8 more
wiley   +1 more source

Cu₄SnS₄-Functionalized Absorbent Pads-Derived Carbon as a Bifunctional Electrode for Supercapacitors and Hydrogen Evolution Reaction. [PDF]

Nanomaterials (Basel)
Justinabraham R, Durairaj A, Luong JHT, Vasanthkumar S, Maruthapandi M.   +4 more
europepmc   +1 more source