The ability of photoanodes to simultaneously tailor light absorption, charge separation, and water oxidation processes represents an important endeavor toward highly efficient photoelectrochemical (PEC) splitting. Here, a robust strategy is reported render markedly improved PEC splitting via sandwiching photothermal Co3 O4 layer between BiVO4 photoanode film FeOOH/NiOOH electrocatalyst sheet. deposited manifests compelling effect upon near-infrared irradiation raises the temperature in situ,...

ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication the EditorMetal-Catalyzed "Living" Radical Polymerization of Styrene Initiated with Arenesulfonyl Chlorides. From Heterogeneous Homogeneous CatalysisVirgil Percec, Bogdan Barboiu, Andreas Neumann, Joan C. Ronda, and Mingyang ZhaoView Author Information The W. M. Keck Laboratories for Organic Synthesis, Department Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202 Cite this: Macromolecules...

Assisted by NIR light, the obtained Co-Pi/PANI/BiVO₄photoanode achieves a remarkable water oxidation photocurrent of 4.05 mA cm⁻²at 1.23 V_RHE.

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAryl Mesylates in Metal-Catalyzed Homocoupling and Cross-Coupling Reactions. 1. Functional Symmetrical Biaryls from Phenols via Nickel-Catalyzed of Their MesylatesVirgil Percec, Jin-Young Bae, Mingyang Zhao, Dale H. HillCite this: J. Org. Chem. 1995, 60, 1, 176–185Publication Date (Print):January 1995Publication History Published online1 May 2002Published inissue 1 January...

Abstract A main‐chain elastomer was synthesized for the first time by a cross‐linking hydrosilylation of cyclosiloxane with new liquid crystalline semiflexible polyether. Imposing uniaxial mechanical field to unstretched nematic polydomain sample results in macroscopic alignment director. For this process has be stretched factor about 5, which considerably exceeds effect observed side‐chain elastomers.

A new heterostructured (La,Sr)2FeO4-δ (LSF214)-La0.8Sr0.2FeO3-δ (LSF113) electrode has been synthesized to improve the oxygen reduction reaction (ORR). This materials system was fabricated by deposition of Sr(NO3)2 into LSF113 framework followed subsequent heat treatment, resulting in a three-dimensional (3D) LSF214-LSF113 electrode. material consists with Ruddlesden-Popper (R-P) LSF214 phase formed on surface framework. The ORR activity enhanced 1 order magnitude using enhancement result...

Abstract This study systematically explored the crystal chemistry of Fe‐substituted hollandite (Fe‐hollandite) solid solutions (Ba x Cs y )(Fe 2 + Ti 8−2 − )O 16 ( = 1.33) yielding reliable results through meticulous Rietveld analysis XRD data. Continuous substitution triggered a monoclinic‐tetragonal (M‐T) phase transition, enhancing structural stability, as evidenced by increased tolerance factor t H ). The transition boundary, controlled .985, determines symmetry phase. Unit cell...

A new-style Ti 3 C 2 T x supported Ni nanoparticle hybrid was developed as a HER electrocatalyst under alkaline conditions with Pt-like catalytic activity.

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAryl Mesylates in Metal-Catalyzed Homocoupling and Cross-Coupling Reactions. 3. A Simple General Method for the Synthesis of 2,2'-Diaroyl-4,4'-dihydroxybiphenylsVirgil Percec, Jin-Young Bae, Mingyang Zhao, Dale H. HillCite this: J. Org. Chem. 1995, 60, 4, 1066–1069Publication Date (Print):February 1, 1995Publication History Published online1 May 2002Published inissue 1 February...

Head-to-head regioregular poly(p-phenylene)s (PPPs) were synthesized via Ni(0)-catalyzed polymerization of 2,2'-disubstituted 4,4'-bis[(methylsulfonyl)oxy]biphenyls (9). The corresponding regioirregular PPPs prepared by the homopolymerization 2-substituted 1,4-bis[(methylsulfonyl)oxy]benzenes (6) and copolymerization 6 with 9. precursors 9, i.e., 1,4-dihydroxybenzene (5) 4,4'-dihydroxybiphenyl (8), a synthetic method elaborated previously in our laboratory [J. Org. Chem. 1995, 60, 1066]. are...

Regioirregular poly(p-phenylene)s (PPPs) with OCF3, CF3 or OCH3 substituents (16a, 16b, 16c, respectively) were synthesized via Ni(0)-catalyzed polymerization of 2-substituted-1,4-bis[[(trifluoromethyl)sulfonyl]oxy]benzenes (5, 8, 10, respectively). Regioregular head−to−head PPPs OCF3 (17a 17b) prepared from 2,2'-disubstituted-4,4'-bis[[(trifluoromethyl)sulfonyl]oxy]biphenyls 14a, 14b and 2,2'-disubstituted-4,4'-bis[methylsulfonyl)oxy]biphenyls 15a, 15b. head-to-head statistical copolymers...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of Functional Polyphenylenes from Substituted Hydroquinones via Nickel(0)-Catalyzed Polymerization Their BismesylatesV. Percec, Jin-Young Bae, Mingyang Zhao, and Dale H. HillCite this: Macromolecules 1995, 28, 20, 6726–6734Publication Date (Print):September 1, 1995Publication History Published online1 May 2002Published inissue 1 September 1995https://doi.org/10.1021/ma00124a005RIGHTS & PERMISSIONSArticle Views257Altmetric-Citations34LEARN...

Abstract Hollandite materials, as a class of crystalline nuclear waste forms, are promising candidates for the immobilization radioactive elements, such Cs, Ba, well variety lanthanide and transition‐metal fission products. In this study, three Ga‐doped titanate hollandite‐type phases, Ba 1.33 Ga 2.67 Ti 5.33 O 16 , 0.667 Cs 2 6 6.67 were synthesized using solid‐state reaction route. All phases adopted single phase tetragonal structure, determined by powder X‐ray diffraction ( XRD ),...

Abstract A series of Cr‐substituted hollandite solid solution Ba x Cs y Cr 2x+y Ti 8−2x−y O 16 over a broad range content (x + = 1.33, 0 ≤ and 1.33) were systematically investigated. monoclinic‐to‐tetragonal phase transition was induced by increasing in the tunnel sites structure, all members show structure modulations related to ordering Ba/Cs vacancies along tunnels. The thermodynamic stability samples measured via high‐temperature oxide melt calorimetry, which included making first...

D-UiO-66-NIM with high proton conductivity has been synthesized through the dual strategy of defect engineering and ligand modification. Moreover, exhibits good temperature cycling stability durability in conductivity. This work developed a new method to obtain efficient MOF-based conductors.

TiO₂ nanorods with oxygen vacancies are produced <italic>via</italic> a facial, controllable and scalable high energy electron beam irradiation treatment, resulting in remarkable enhancement of photocurrent density about 85.4% at 1.23 V_RHE.

A stepwise synthesis of "main-chain" regioirregular liquid-crystalline macrocyclic oligoethers based on conformationally flexible mesogens and spacers is described. This method was applied to the previously unreported cyclic trimer TPB'-(c)10(3), tetramer TPB'-(c)10(4), pentamer TPB'-(c)10(5), 1-(4-hydroxyphenyl)-2-(4-hydroxy-4'-biphenylyl)butane (TPB') 1,10-dibromodecane. The consists bisphenolic linear TPB' (5) its phase-transfer-catalyzed etherification under high dilution with...

Formation enthalpies and Gibbs energies of actinide rare-earth containing SIMs with silicate germanate frameworks are reported. Volume-based thermodynamics (VBT) techniques complemented by density functional theory (DFT) were adapted applied to these complex structures. VBT DFT results in closest agreement for the smaller framework structure, whereas general predicts less negative across all SIMs, regardless type. Both methods predict silicates be most stable comparable structures...