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| 1 | Electrocatalytic conversion of CO_2 to liquid fuels using nanocarbon-based electrodes显示文摘Recent advances on the use of nanocarbon-based electrodes for the electrocatalytic conversion of gaseous streams of CO2 to liquid fuels are discussed in this perspective paper. A novel gas-phase electrocatalytic cell, different from the typical electrochemical systems working in liquid phase, was developed. There are several advantages to work in gas phase, e.g. no need to recover the products from a liquid phase and no problems of CO2 solubility, etc. Operating under these conditions and using electrodes based on metal nanoparticles supported over carbon nanotube (CNT) type materials, long C-chain products (in particular isopropanol under optimized conditions, but also hydrocarbons up to C8-C9) were obtained from the reduction of CO2 . Pt-CNT are more stable and give in some cases a higher productivity, but Fe-CNT, particular using N-doped carbon nanotubes, give excellent properties and are preferable to noble-metal-based electrocatalysts for the lower cost. The control of the localization of metal particles at the inner or outer surface of CNT is an importact factor for the product distribution. The nature of the nanocarbon substrate also plays a relevant role in enhancing the productivity and tuning the selectivity towards long C-chain products. The electrodes for the electrocatalytic conversion of CO2 are part of a photoelectrocatalytic (PEC) solar cell concept, aimed to develop knowledge for the new generation artificial leaf-type solar cells which can use sunlight and water to convert CO2 to fuels and chemicals. The CO2 reduction to liquid fuels by solar energy is a good attempt to introduce renewables into the existing energy and chemical infrastructures, having a higher energy density and easier transport/storage than other competing solutions (i.e. H2 ). | Chiara Genovese Claudio Ampelli Siglinda Perathoner Gabriele Centi | 2013 | Journal of Energy Chemistry2013，22，2： | 4 |
| 2 | 碳基催化剂:为开发下一代纳米工程催化材料开辟新方法(英文)显示文摘This essay analyses some of the recent development in nanocarbons (carbon materials having a defined and controlled nano-scale dimension and functional properties which strongly depend on their nano-scale features and architecture), with reference to their use as advanced catalytic materials. It is remarked how their features open new possibilities for catalysis and that they represent a new class of catalytic materials. Although carbon is used from long time in catalysis as support and electrocatalytic applications, nanocarbons offer unconventional ways for their utilization and to address some of the new challenges deriving from moving to a more sustainable future. This essay comments how nanocarbons are a key element to develop next-generation catalytic materials, but remarking that this goal requires overcoming some of the actual limits in current research. Some aspects are discussed to give a glimpse on new directions and needs for R&D to progress in this direction. | Claudio Ampelli Siglinda Perathoner Gabriele Centi | 2014 | 催化学报2014，35，6： | 3 |
| 3 | Enhanced performance in the direct electrocatalytic synthesis of ammonia from N2 and H2O by an in-situ electrochemical activation of CNT-supported iron oxide nanoparticles显示文摘The direct electrocatalytic synthesis of ammonia from N2 and H2O by using renewable energy sources and ambient pressure/temperature operations is a breakthrough technology,which can reduce by over 90%the greenhouse gas emissions of this chemical and energy storage process.We report here an in-situ electrochemical activation method to prepare Fe2O3-CNT(iron oxide on carbon nanotubes)electrocatalysts for the direct ammonia synthesis from N2 and H2O.The in-situ electrochemical activation leads to a large increase of the ammonia formation rate and Faradaic efficiency which reach the surprising high values of 41.6μg mgcat^−1 h^−1 and 17%,respectively,for an in-situ activation of 3 h,among the highest values reported so far for non-precious metal catalysts that use a continuous-flow polymer-electrolytemembrane cell and gas-phase operations for the ammonia synthesis hemicell.The electrocatalyst was stable at least 12 h at the working conditions.Tests by switching N2 to Ar evidence that ammonia was formed from the gas-phase nitrogen.The analysis of the changes of reactivity and of the electrocatalyst characteristics as a function of the time of activation indicates a linear relationship between the ammonia formation rate and a specific XPS(X-ray-photoelectron spectroscopy)oxygen signal related to O2−in iron-oxide species.This results together with characterization data by TEM and XRD suggest that the iron species active in the direct and selective synthesis of ammonia is a maghemite-type iron oxide,and this transformation from the initial hematite is responsible for the in-situ enhancement of 3-4 times of the TOF(turnover frequency)and NH3 Faradaic efficiency.This transformation is likely related to the stabilization of the maghemite species at CNT defect sites,although for longer times of preactivation a sintering occurs with a loss of performances. | Shiming Chen Siglinda Perathoner Claudio Ampelli Hua Wei Salvatore Abate Bingsen Zhang Gabriele Centi | 2020 | Journal of Energy Chemistry2020，29，10： | 2 |
| 4 | 显示文摘 | Gabriele Centi Siglinda Perathoner | 2003 | Catalysis Today2003，7980，： | 2 |
| 5 | Role of size and pretreatment of Pd particles on their behaviour in the direct synthesis of H_2O_2显示文摘Two families of catalysts, based on Pd nanoparticles supported on ceramic asymmetric tubular alumina membranes, are studies in the direct synthesis of H_2O_2. They are prepared by depositing Pd in two ways:(i) reduction with N_2H_4 in an ultrasonic bath and(ii) by impregnation-deposition. The first preparation leads to larger particles, with average size of around 11 nm, while the second preparation leads to smaller particles, with average size around 4 nm. The catalytic membranes were tested as prepared, after thermal treatment in air and after further pre-reduction with H_2 in mild(100 ℃) conditions. Samples were characterized by TEM, CO-chemisorption monitored by DRIFTS method and TPR, while catalytic tests have been performed in a semi-batch recirculation membrane reactor. Experimental catalytic results were analysed using two kinetics models to derive the reaction constants for the parallel and consecutive reactions of the kinetic network. Smaller particles of Pd show lower selectivity due to the higher rate of parallel combustion, even if the better dispersion of Pd and thus higher metal surface area in the sample lead to a productivity in H_2O_2 similar or even higher than the sample with the larger Pd particles. Independently on the presence of smaller or larger Pd nanoparticles, an oxidation treatment leads to a significant enhancement in the productivity, although the catalyst progressively reduces during the catalytic process. The inhibition of the parallel combustion reaction(to water) induced from the calcination treatment remains after the in-situ reduction of the oxidized Pd species formed during the pre-treatment.This is likely due to the elimination of defect sites which dissociatively activate oxygen, and tentatively attributed to Pd sites able to give three- and four-fold coordination of CO. | Salvatore Abate Katia Barbera Gabriele Centi Gianfranco Giorgianni Siglinda Perathoner | 2016 | Journal of Energy Chemistry2016，25，2： | 2 |
| 6 | The energy-chemistry nexus: A vision of the future from sustainability perspective显示文摘The changing energy-chemistry nexus is discussed in this perspective paper about the future of sustainable energy and chemical production to identify the priorities and open issues on which focus research and development. Topics discussed regard(i) the new sustainable energy scenario,(ii) the role of energy storage(from smart grids to chemical storage of energy),(iii) the outlooks and role of solar(bio)refineries and solar fuels,(iv) how to integrate bio- and solar-refineries to move to new economy,(v) the role of methanol at the crossover of new energy-chemistry nexus,(vi) the role of chemistry in this new scenario,(vii) the role of nanomaterials for a sustainable energy,(viii) the use of nanocarbons to design advanced energy conversion and storage devices, and(ix) possibilities and routes to exploit solar energy and methane(shale gas). The contribution provides a glimpse of the emerging directions and routes with some elements about their possible role in the future scenario, but does not provide a detailed analysis of the state of the art in these directions. | Salvatore Abate Gabriele Centi Paola Lanzafame Siglinda Perathoner | 2015 | Journal of Energy Chemistry2015，24，5： | 2 |
| 7 | Catalysis: Role and Challenges for a Sustainable Energy显示文摘 | Gabriele Centi Siglinda Perathoner | 2009 | Topics in Catalysis2009，，8： | 1 |
| 8 | Etherification of HMF to biodiesel additives: The role of NH4+ confinement in Beta zeolites显示文摘The role of NH4^+ ion confinement in the catalytic etherification of HMF(5-hydroxymethylfurfural) with ethanol to biodiesel additives was evidenced by studying the catalytic behavior of NH4^+-Beta zeolites with SiO2/Al2O3 ratios of 25 and 75.In order to affect the strength and distribution of the acidic sites, as well as the mobility of NH4^+ ions in the zeolites cages, a secondary level of porosity was introduced in the NH4^+-Beta, presenting a different stability versus alkaline treatment, by using a thermal or an ultrasound assisted method.By analyzing the catalytic behavior in these two series of samples with respect to the changes in porosity by nonlocal density functional theory, structure by XRD, amount of acid sites by FT-IR and mobility of NH4^+ cations by measurements of reversible NH4^+ exchange capacity, was evidenced a decrease in catalytic performances both in terms of rate of HMF depletion and productivity to the main products, when confinement of the ammonium ions is lost due to the introduction of mesoporosity.The high capability of ammonium ions release, associated to the mono-dentate configuration,and the minor confinement effect inside the zeolite pore system, due to the more opened pores structure of mesoporous zeolites, hinders both the direct etherification of HMF to EMF [5-(ethoxymethyl)furan-2-carbaldehyde] and the parallel reaction pathway via acetalization, favoring the rapid desorption of the HMFDEA [5-(hydroxymethyl)furfural diethyl acetal] product out of the crystal and the consequent inhibition of the consecutive reactions to EMFDEA [5-(ethoxymethyl)furfural diethyl acetal] and EMF. | Paola Lanzafame Georgia Papanikolaou Katia Barbera Gabriele Centi Siglinda Perathoner | 2019 | Journal of Energy Chemistry2019，28，9： | 1 |
| 9 | A gas-phase elec- trochemical reactor for carbon dioxide reduction back to liquid fuels 显示文摘 | CHIARA GENOVESE CLAUDIO AMPELI SIGLINDA PERATHONER | 2013 | Chemical Engineering Transac- tions2013，32，11： | 1 |
| 10 | Energy-related catalysis显示文摘Availability of energy is a vital element of our current society,but energy must be converted to usable forms,either when stemming from fossil fuel sources or from renewable(perennial)ones.Catalysis plays a central role to enable both possibilities and mitigate related impact on environment,including greenhouse gases(GHG)emissions. | Salvatore Abate Gabriele Centi Siglinda Perathoner | 2015 | National Science Review2015，2，2： | 1 |
| 11 | 非晶碳纳米球的低温石墨化(英文)显示文摘The investigation by SEM/TEM, porosity, and X-ray diffraction measurements of the graphitization process starting from amorphous carbon nanospheres, prepared by glucose carbonization, is reported. Aspects studied are the annealing temperature in the 750–1000 °C range, the type of inert carrier gas, and time of treatment in the 2–6 h range. It is investigated how these parameters influence the structural and morphological characteristics of the carbon materials obtained as well as their nanostructure. It is shown that it is possible to maintain after graphitization the round-shaped macro morphology, a high surface area and porosity, and especially a large structural disorder in the graphitic layers stacking, with the presence of rather small ordered domains. These are characteristics interesting for various catalytic applications. The key in obtaining these characteristics is the thermal treatment in a flow of N2. It was demonstrated that the use of He rather than N2 does not allow obtaining the same results. The effect is attributed to the presence of traces of oxygen, enough to create the presence of oxygen functional groups on the surface temperatures higher than 750 °C, when graphitization occurs. These oxygen functional groups favor the graphitization process. | Katia Barbera Leone Frusteri Giuseppe Italiano Lorenzo Spadaro Francesco Frusteri Siglinda Perathoner Gabriele Centi | 2014 | 催化学报2014，35，6： | 1 |
| 12 | Catalytic wet oxidation with H 2 O 2 of carboxylic acids on homogeneous and heterogeneous Fenton-type catalysts显示文摘 | Gabriele Centi Siglinda Perathoner Teresa Torre Maria Grazia Verduna | 2000 | Catalysis Today2000，，1： | 1 |
| 13 | Homogeneous versus heterogeneous catalytic reactions to eliminate organics from waste water using H 2 O 2显示文摘 | Simona Caudo Gabriele Centi Chiara Genovese Siglinda Perathoner | 2006 | Topics in Catalysis2006，，1： | 1 |
| 14 | Electrocatalytic conversion of CO2 to long carbon-chain hydrocarbons显示文摘 | Centi Ganged Siglinda Perathoner Miriam Gangeri | 2007 | Green Chemistry2007，9，6： | 1 |
| 15 | Nanocarbons for the development of advanced catalysts 显示文摘 | Su Dangsheng Perathoner Siglinda Centi Gabriele | 2013 | Chemical Reviews2013，113，8： | 1 |
| 16 | Applied bias photon-to-current conversion efficiency of ZnO enhanced by hybridization with reduced graphene oxide显示文摘The role of reduced graphene oxide(rGO) in the enhancement of photo-conversion efficiency of ZnO films for photoelectrochemical(PEC) water-splitting applications was analyzed. ZnO and rGO-hybridized ZnO(rGO/ZnO) films were prepared via a two-step electrochemical deposition method followed by annealing at 300 °C under argon gas flow. The physical, optical and electrochemical properties of the films were characterized to identify the effect of rGO-hybridization on the applied bias photon-to-current efficiency(ABPE) of ZnO. Scanning electron microscopy and X-ray diffraction indicated the formation of verticallyaligned, wurtzite-phase ZnO nanorods. Diffuse-reflectance UV–visible spectroscopy indicated that rGO-hybridization was able to increase the light absorption range of the rGO/ZnO film. UPS analysis showed that hybridization with rGO increased the band gap of ZnO(3.56 eV) to 3.63 eV for rGO/ZnO sample,which may be attributed to the Burstein–Moss effect. Photoluminescence(PL) spectra disclosed that rGOhybridization suppressed electron-hole recombination due to crystal defects. Linear sweep voltammetry of the prepared thin films showed photocurrent density of 1.0 and 1.8 m A/cm^2 for ZnO and rGO/ZnO at+0.7 V, which corresponded to an ABPE of 0.55% and 0.95%, respectively. Thus, this report highlighted the multi-faceted role of rGO-hybridization in the enhancement of ZnO photo-conversion efficiency. | Sharifah Bee Abdul Hamid Swe Jyan Teh Chin Wei Lai Siglinda Perathoner Gabriele Centi | 2017 | Journal of Energy Chemistry2017，26，2： | 1 |
| 17 | Semiconductor,molecular and hybrid systems for photoelectrochemical solar fuel production显示文摘The paper shortly reviews the basic direct approaches applied in searching for viable solutions to solar fuel production. These are generally distinguished in molecular and semiconductor(non-molecular)systems, however, hybrid strategies, proposed recently, have also been included. The most promising efforts are considered, highlighting key aspects and emerging critical issues. Special attention is paid to aspects such as electrode architecture, device design, and main differences in the scientific vision and challenges to directly produce solar fuels. This overview could be useful to orientate the readers in the wide panorama of research activities concerning water splitting, natural and artificial photosynthesis, and solar fuel production through the identification of common aspects, specialties and potentialities of the many initiatives and approaches that are developing worldwide in this field with the final aim to meet world energy demand. | Rosalba Passalacqua Siglinda Perathoner Gabriele Centi | 2017 | Journal of Energy Chemistry2017，26，2： | 1 |
| 18 | Creating and mastering nano-objects to design advanced catalytic materials显示文摘 | CENTI Gabriele PERATHONER Siglinda | | 0，，13： | 1 |
| 19 | Remediation of water contamination using catalytic technologies 显示文摘 | Gabriele Centi Siglinda Perathoner | 2003 | Applied Catalysis B: Environmental2003，41，12： | 1 |
| 20 | Synthesis of TiO2 Thin Films: Relationship Between Preparation Conditions and Nanostructure显示文摘 | C. Ampelli Rosalba Passalacqua Siglinda Perathoner Gabriele Centi Dangsheng S. Su Gisela Weinberg | 2008 | Topics in Catalysis (-)2008，，1： | 1 |
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