Results 101 to 110 of about 28,742 (265)

Determination of exchange energies in the sawtooth spin ring {Mo75V20} by ESR [PDF]

, 2011
The magnetism of the polyoxometalate cluster {Mo75V20}, containing a sawtooth ring of 10 corner-sharing triangles located on the equator of the barrel-shaped molecule, has remained debatable since it is masked by contributions from impurities as well as ...
A. Abragam, C. Lanczos, Hiroyuki Nojiri, Jürgen Schnack, Marshall Luban, Paul Kögerler, W. H. Press, Yugo Oshima   +7 more
core   +2 more sources

Catalytic processing in ruthenium-based polyoxometalate coacervate protocells

Nature Communications, 2020
The development of programmable microscale materials with cell-like functions, dynamics and collective behaviour is an important milestone in systems chemistry, soft matter bioengineering and synthetic protobiology.
P. Gobbo, Liangfei Tian, B. P. Pavan Kumar, Samuel A. Turvey, M. Cattelan, A. Patil, M. Carraro, M. Bonchio, S. Mann   +8 more
semanticscholar   +1 more source

Directed Charge Transfer‐Driven Efficient Photocatalytic Hydrogen Production in Dual S‐Scheme WS2/Co9S8/ZnCdS Heterojunction

Carbon Energy, EarlyView.
The photocatalytic hydrogen evolution reaction (HER) activity of the polyoxometalate (POM)‐derived dual S‐scheme heterojunction photocatalyst WS2/Co9S8/ZnCdS reaches a value as high as 15.66 mmol g−1 h−1 under visible light (λ ≥ 420 nm), providing a straightforward approach for the development of dual S‐scheme heterojunctions to enhance the efficiency ...
Shuanghe Fu, Zhi Cai, Haijun Pang, Carlos J. Gómez‐García, Qiong Wu, Xinming Wang, Guixin Yang, Xiaojing Yu, Yongbin Song, Chunjing Zhang, Zhengyao Qiu, Tianqi Guo, Zhipeng Yu   +12 more
wiley   +1 more source

Pt-O bond as an active site superior to Pt0 in hydrogen evolution reaction

Nature Communications, 2020
While converting water to H2 with a catalyst offers a renewable means to produce carbon-neutral fuels, understanding the catalytic active sites has proven challenging.
Fei-Yang Yu, Zhong-Ling Lang, Li-Ying Yin, Kun Feng, Yu-Jian Xia, Hua-Qiao Tan, Hao-Tian Zhu, Jun Zhong, Zhen-Hui Kang, Yang-Guang Li   +9 more
doaj   +1 more source

Keggin Type Polyoxometalate H4[αSiW12O40].nH2O as Intercalant for Hydrotalcite [PDF]

, 2016
The synthesis of hydrotalcite and polyoxometalate H4[αSiW12O40].nH2O with the ratio (2:1), (1:1), (1:2) and (1:3) has been done. The product of intercalation was characterized using FT-IR spectrophotometer, XRD, and TG-DTA.
Palapa, N. R. (Neza), Said, M. (Muhammad)   +1 more
core   +1 more source

Structural Design of MOF‐Based and MOF‐Derived Composites for Oxygen Evolution Electrocatalysis: Materials Innovation for Energy and Environmental Sustainability

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review provides an overview of recent developments in metal organic framework (MOF)‐based and MOF‐derived composites for efficient oxygen evolution reaction. This review also emphasizes the structural design of electrocatalyst, active site optimization, and emerging prospects of their use in practical electrolyzer systems.
Bhagyashri B. Kamble, Aditi De, Seung Joo Jang, Arun Karmkar, Venkatachalam Vinothkumar, Niyaz Mujawar, Subrata Kundu, Tae Hyun Kim   +7 more
wiley   +1 more source

Luminescent polyoxotungstoeuropate anion-pillared layered double hydroxides [PDF]

, 2006
Novel luminescent polyoxometalate anion-pillared layered double hydroxides (LDHs) were prepared by aqueous ion exchange of a Zn–Al LDH precursor in nitrate form with the europium-containing polyoxotungstate anions [EuW10O36]9–, [Eu(BW11O39)(H2O)3]6 ...
Ballardinni, Barriga, Bartis, Bellotto, Bravo-Suárez, Bu, Carlos, Carlos, Cavaleiro, Couto, del Arco, Dimotakis, Drezdon, Evans, Gago, Gardner, Griffith, Guo, Haraguchi, Khan, Kwon, Kwon, Luo, Ma, Narita, Newman, Nijs, Peacock, Rives, Rocchiccioli-Deltcheff, Sadakane, Sousa, Sousa, Sugeta, Sá Ferreira, Vaysse, Wang, Wang, Wang, Weir, Werts, Xu, Xu, Yamase, Yamase, Yamase, Yun, Zhang, Zhang   +48 more
core   +1 more source

Desulfurization of Benzothiophene Derivatives by Solvent Extraction Coupled With Oxidation Using Oxomolybdenum(VI) Bis(pyrazolyl)methane Catalysts

European Journal of Inorganic Chemistry, EarlyView.
A polymeric hybrid material formulated as [MoO3(bis(pyrazolyl)methane)] has been prepared and used as a catalyst precursor for the complete oxidative desulfurization of a model diesel containing recalcitrant benzothiophene derivatives. The precursor is converted in situ to an oxodiperoxo active species which is retained in the recyclable extractant ...
Ana C. Gomes, Fátima Mirante, Isabel S. Gonçalves, Martyn Pillinger, Salete S. Balula   +4 more
wiley   +1 more source

Electronic band structure engineering of π-d conjugated metal-organic framework for sodium organic batteries

Nature Communications
Two-dimensional conjugated metal organic frameworks (2D c-MOFs) hold significant promise as electrode materials for alkali metal ion batteries while their electrochemical properties still lack reasonable and effective regulation. Here, two representative
Juan Chu, Zhaoli Liu, Jie Yu, Heng-Guo Wang, Fengchao Cui, Guangshan Zhu   +5 more
doaj   +1 more source

A new hybrid porphyrin-heteropolyacid material : synthesis, characterization and investigation as catalyst in Baeyer-Villiger oxidation : synergistic effect [PDF]

, 2015
A new tetraphenylporphyrin-tungstophosphoric acid hybrid was synthesized and physico-chemically characterized by different techniques. This hybrid, its molybdenum analogue, tungstophosphoric and molybdophosphoric acids as well as their Mn, Fe and Co ...
Górecka, Sylwia, Kubiak, Władysław, Pamin, Katarzyna, Połtowicz, Jan, Prończuk, Mateusz, Sojka, Zbigniew   +5 more
core   +1 more source