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6. New Nd-142 Evidence for a Non-Chondritic Composition of the Moon

Author

Nyquist, L, Touboul, M, Kleine, T, Bourdon, B, and Shih, C.Y

Subjects
Geosciences (General)
Abstract

The coupled Sm-147,146-Nd-143,142 systematics of lunar samples has been extensively studied for estimating the timescale of lunar differentiation. The published datasets yield consistent ages for Nd isotopic closure within the lunar mantle of approx.200 Myr after CAI formation. Although this time constraint is consistent with estimates derived from Hf-W chronometry of the Moon (>60 Myr after CAI formation), there is debate as to whether this age has chronological significance. Furthermore, there are discrepancies regarding the Nd isotope composition of the bulk Moon. Rankenburg et al. obtained a epsilon Nd-142 vs. Sm-147/Nd-144 correlation for lunar samples passing though the chondritic reference value (Sm-147/Nd-144 = 0.1967, epsilon Nd-142 = -0.21), suggesting that the Moon has a chondritic bulk composition. In contrast, the other datasets define a correlation line that passes approx.10-20 ppm above, suggesting that the Moon has a superchondritic Sm-147/Nd-144 (approx.0.206), close to that of the early depleted Earth (EDM). We present new Sm-Nd data for a high-Ti mare basalt (70135), two low-Ti mare basalt (LAP 02205 and MIL 05035) and a KREEPy low-Ti mare basalt (NWA 2977). These data are used to evaluate the significance of the Sm-Nd systematics for constraining the timescale of lunar differentiation and the bulk Nd isotope composition of the Moon.

Published
2009

12. 182W and HSE constraints from 2.7 Ga komatiites on the heterogeneous nature of the Archen mantle

Author

Puchtel, I.S., Puchtel, I.S., Blichert-Toft, J., Touboul, M., Walker, Richard J., Puchtel, I.S., Puchtel, I.S., Blichert-Toft, J., Touboul, M., and Walker, Richard J.

Abstract

While the isotopically heterogeneous nature of the terrestrial mantle has long been established, the origin, scale, and longevity of the heterogeneities for different elements and isotopic systems are still debated. Here, we report Nd, Hf, W, and Os isotopic and highly siderophile element (HSE) abundance data for the Boston Creek komatiitic basalt lava flow (BCF) in the 2.7 Ga Abitibi greenstone belt, Canada. This lava flow is characterized by strong depletions in Al and heavy rare earth elements (REE), enrichments in light REE, and initial e143Nd = +2.5 ± 0.2 and initial e176Hf = +4.2 ± 0.9 indicative of derivation from a deep mantle source with time-integrated suprachondritic Sm/Nd and Lu/Hf ratios. The data plot on the terrestrial Nd-Hf array suggesting minimal involvement of early magma ocean processes in the fractionation of lithophile trace elements in the mantle source. This conclusion is supported by a mean mu142Nd = -3.8 ± 2.8 that is unresolvable from terrestrial standards. By contrast, the BCF exhibits a positive 182W anomaly (mu182W = +11.7 ± 4.5), yet is characterized by chondritic initial g187Os = +0.1 ± 0.3 and low inferred source HSE abundances (35 ± 5% of those estimated for the present-day Bulk Silicate Earth, BSE). Collectively, these characteristics are unique among Archean komatiite systems studied so far. The deficit in the HSE, coupled with the chondritic Os isotopic composition, but a positive 182W anomaly, are best explained by derivation of the parental BCF magma from a mantle domain characterized by a predominance of HSE-deficient, differentiated late accreted material. According to the model presented here, the mantle domain that gave rise to the BCF received only ~35% of the present-day HSE complement in the BSE before becoming isolated from the rest of the convecting mantle until the time of komatiite emplacement at 2.72 Ga. These new data provide strong evidence for a highly heterogeneous Archean mantle in terms of absolute HSE abundan

Published
2018

27. Application of Radiogenic Isotopes in Geosciences: Overview and Perspectives

Author

Tessalina, S.G., Jourdan, F., Nunes, L., Kennedy, A., Denyszyn, S., Puchtel, I.S., Touboul, M., Creaser, R., Boyet, Maud, Belousova, E. A., Trinquier, A., Institut de Physique du Globe de Paris (IPGP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Magmas et Volcans (LMV), Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Institut de Recherche pour le Développement et la société-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)-Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Institut national des sciences de l'Univers (INSU - CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), ARC National Key Centre for Geochemical Evolution and Metallogeny of Continents (GEMOC), Macquarie University, Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement et la société-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), and Institut national des sciences de l'Univers (INSU - CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Université Jean Monnet [Saint-Étienne] (UJM)

Subjects
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2014

30. Application of radiogenic isotopes in Geosciences: Overview and perspectives

Author

Tessalina, Svetlana, Jourdan, Fred, Nunes, L., Kennedy, A., Denyszyn, S., Puchtel, I., Touboul, M., Creaser, R., Boyet, M., Belousova, E., Trinquier, A., Tessalina, Svetlana, Jourdan, Fred, Nunes, L., Kennedy, A., Denyszyn, S., Puchtel, I., Touboul, M., Creaser, R., Boyet, M., Belousova, E., and Trinquier, A.

Abstract

Wider use of radiogenic isotopes in geosciences has been enabled by developments in mass spectrometry at the beginning of the 21st century. Nowadays, radiogenic isotope geochemistry forms an integrated part of geosciences in a range of applications, starting from formation of planetary systems, genesis, and the evolution of Earth's lithosphere and associated mineral and oil deposits, as well as environmental tracers. Two primary types of information are available from radiogenic isotopes studies: age determination and isotopic source tracing. In this chapter, the range of isotope systematics currently used in geosciences and their applications are reviewed, together with progress in analytical technologies. The chapter brings together internationally recognised researchers who have been at the forefront of analytical technologies in the field of geochemistry of radiogenic isotopes.

Published
2015

32. Inclusive π0 andη 0 production in π− p interactions at 360 GeV/c

Author

Aguilar-Benitez, M., Bailly, J. L., Baland, J. F., Banerjee, S., Bartl, W., Batunion, A. V., Begalli, M., Belokopytov, Yu., Briand, H., Brun, R., Caso, C., Castelli, E., Checchia, P., Colino, N., Contri, R., de Angelis, A., de Billy, L., Di Capua, E., Dumarchez, J., Epp, B., Falciano, S., Fernandez, C., Fisjak, Yu., Fontanelli, F., Fry, J. R., Gasparini, U., Gentile, S., Hamatsu, R., Haupt, L., Hellman, S., Hernandez, J. J., Holmgren, S. O., Houlden, M. A., Hrubec, J., Huss, D., Iga, M., Iori, M., Jegham, E., Johansson, K. E., Josa, I., Kholodenko, A., Kistenev, E., Kitamura, S., Leutz, H., Lyons, L., Marel, G., Mason, P., Mazzucato, M., Michalon-Mentzer, M. E., Michalon, A., Moa, T., Montanet, L., Neuhofer, G., Nguyen, H. K., Nilsson, S., Nowak, H., Otter, G., Patel, G. D., Pernicka, M., Petrovikch, Yu., Pinori, C., Piredda, G., Polyakov, B., Popleton, A., Poropat, P., Powell, B., Reucroft, S., Richardson, J., Roberts, K., Rohringer, H., Roth, A., Salicio, J., Schouten, M., Schulte, R., Sellden, B., Sessa, M., Squarcia, S., Stopchenko, V., Struczinski, W., Sudhakar, K., Takahashi, K., Touboul, M. C., Trevisan, U., Troncon, C., Tsugurai, T., Ventura, L., Vilain, P., Voltolini, C., Vonck, B., Whymen, B., Wright, P., Yamagata, T., Zumerle, G., and NA27 LEBC/EHS Collaboration

Published
1987
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33. Comparative properties of 400 GeV/c proton-proton interactions with and without charm production

Author

Aguilar-Benitez, M., Allison, W. W. M., Bailly, J. L., Banerjee, S., Bartl, W., Begalli, M., Beillière, P., Bizarri, R., Briand, H., Canale, V., Caso, C., Castelli, E., Checchia, P., Chliapnikov, P. V., Colino, N., Contri, R., Crennell, D., De Angelis, A., Defoix, C., DiMarco, R., DiCapua, E., Diez-Hedo, F., Dolbeau, J., Dumarchez, J., Falciano, S., Fisher, C., Fisyak, Yu. V., Fontanelli, F., Fry, J., Ganguli, S. N., Gasparini, U., Gensch, U., Gentile, S., Gibaut, D. G., Goshaw, A. T., Grard, F., Gurtu, A., Hamatsu, R., Haupt, L., Hellman, S., Henri, V. P., Hernandez, J. J., Holmgren, S. O., Hrubec, J., Hughes, P., Huss, D., Iori, M., Jegham, E., Johansson, K. E., Josa, M. I., Kalelkar, M., Kita, I., Kholodenko, A. G., Kistenev, E. P., Kitamura, S., Knauss, D., Kniazev, V. V., Kowald, W., Ladron de Guevara, P., Laloum, M., Legros, P., Leutz, H., Lyons, L., MacDermott, M., Malhotra, P. K., Mason, P., Mazzucato, M., Michalon-Mentzer, M. E., Michalon, A., Moa, T., Monge, R., Montanet, L., Naumann, T., Neuhofer, G., Nguyen, H. K., Nilsson, S., Nowak, H., Oshima, N., Otter, G., Ouared, R., Comellas, J. Panella, Patel, G., Patrignani, G., Pernicka, M., Pilette, P., Pinori, C., Pirreda, G., Plano, R., Poppleton, A., Poropat, P., Raghavan, R., Reucroft, S., Roberts, K., Robertson, W. J., Roth, A., Rohringer, H., Salicio, J. M., Schulte, R., Sellden, B., Sessa, M., Simonetto, F., Squarcia, S., Stopchenko, V. A., Subramanian, A., Struczinski, W., Takahashi, K., Touboul, M. C., Trevisan, U., Troncon, C., Ventura, L., Vilain, P., Voltolini, C., Vonck, B., Walker, W. D., Wild, C. F., Yamagata, T., Zumerle, G., and LEBC-EHS Collaboration

Published
1988
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35. Charm hadron properties in 400 GeV/cpp interactions

Author

Aguilar-Benitez, M., Allison, W. W. M., Bailly, J. L., Banerjee, S., Bartl, W., Begalli, M., Beillière, P., Bizarri, R., Briand, H., Canale, V., Caso, C., Castelli, E., Checchia, P., Chliapnikov, P. V., Colino, N., Contri, R., Crennell, D., De Angelis, A., de Billy, L., Defoix, C., Di Marco, R., Di Capua, E., Diez-Hedo, F., Dolbeau, J., Dumarchez, J., Ericsson, M., Falciano, S., Fisher, C., Fisyak, Yu. V., Fontanelli, F., Fry, J., Ganguli, S. N., Gasparini, U., Gensch, U., Gentile, S., Gibaut, D. G., Goshaw, A. T., Grard, F., Gurtu, A., Hamatsu, R., Haupt, L., Hellman, S., Henri, V. P., Hernandez, J. J., Hirose, T., Holmgren, S. O., Hrubec, J., Hughes, P., Huss, D., Iori, M., Jegham, E., Johansson, K. E., Josa, M. I., Kalelkar, M., Kita, I., Kholodenko, A. G., Kistenev, E. P., Kitamura, S., Knauss, D., Kniazev, V. V., Kowald, W., Kuhn, D., Ladron de Guevara, P., Laloum, M., Legros, P., Leutz, H., Lyons, L., MacDermott, M., Malhotra, P. K., Mason, P., Mazzucato, M., Michalon-Mentzer, M. E., Michalon, A., Moa, T., Monge, R., Montanet, L., Neuhofer, G., Nguyen, H. K., Nilsson, S., Nowak, H., Oshima, N., Otter, G., Ouared, R., Comellas, J. Panella, Patel, G., Patrignani, C., Pernicka, M., Pilette, P., Pinori, C., Pirreda, G., Plano, R., Poppleton, A., Poropat, P., Raghavan, R., Reucroft, S., Roberts, K., Robertson, W. J., Rohringer, H., Salicio, J. M., Schulte, R., Sellden, B., Sessa, M., Simonetto, F., Squarcia, S., Stamer, P., Stopchenko, V. A., Subramanian, A., Struczinski, W., Takahashi, K., Tavernier, S., Touboul, M. C., Trevisan, U., Troncon, C., Tsurugai, T., Ventura, L., Vilain, P., Voltolini, C., Vonck, B., Walker, W. D., Wild, C. F., Yamagata, T., Yiou, T. P., Zumerle, G., and LEBC-EHS Collaboration

Published
1988
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37. Charm hadron properties in 360 GeV/c π− p-interactions

Author

Aguilar-Benitez, M., Allison, W. W. M., Bailly, J. L., Baland, J. F., Banerjee, S., Bartl, W., Begalli, M., Belliere, P., Bettini, A., de Billy, L., Bizarri, R., Borreani, G., Briand, H., Brun, R., Bugg, W. M., di Capua, E., Caso, C., Colino, N., Castelli, E., Checchia, P., Chliapnikov, P., Colwill, S., Contri, R., Crennel, D., Cresti, M., De-Angelis, A., Defoix, C., Dimarco, R., Dolbeau, J., Dumarchez, J., Epp, B., Falciano, S., Fernandez, C., Fisher, C., Fisyak, Yu., Fontanelli, F., Fry, J. R., Ganguli, S., Garbellini, L., Gasparini, U., Gentile, S., Goshaw, A., Grard, F., Gurtu, A., Hamatsu, R., Handler, T., Hart, E. L., Haupt, L., Hellman, S., Hernandez, J. J., Herve, A., Holmgren, S. O., Houlden, M. A., Hrubec, J., Hughes, P., Huss, D., Iga, Y., Iori, M., Jegham, E., Johanson, E., Kesteman, J., Kistenev, E., Kita, I., Kitamura, S., Kniazev, V., Ladron de Guevara, P., Laloum, M., Lemonne, J., Leutz, H., Lyons, L., MacDermott, M., Malhotra, P. K., Marchetto, F., Marel, G., Marzano, F., Mason, P., Mazzucato, M., Michalon, A., Michalon-Mentzer, M. E., Moa, T., Monge, R., Montanet, L., Neuhofer, G., Nguyen, H. K., Nilsson, S., Nowak, H., Oshima, N., Otter, G., Patel, G. D., Pernicka, M., Pilette, P., Pinori, C., Piredda, G., Plano, R., Poppleton, A., Poropat, P., Powell, B., Ransone, G., Reucroft, S., Richardson, J., Rinaudo, G., Roberts, K., Rohringer, H., Schouten, M., Schulte, R., Sellden, B., Sessa, M., Shankar, K., Squarcia, S., Stamer, P., Stopchenko, V., Struczinski, W., Subramanian, A., Touboul, M. C., Trevisan, U., Troncon, C., Tsurugai, T., Uvarov, V., Ventura, L., Vilain, P., Vlasov, E., Voltolini, C., Vonck, B., Wickens, J., Willmott, C., Wright, P., Yamagata, T., Yarba, V., Zanello, L., Zotto, P. L., Zumerle, G., and LEBC-EHS Collaboration

Published
1986
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39. Exclusive hadron branching ratios of theD meson

Author

Aguilar-Benitez, M., Allison, W. W. M., Bailly, J. L., Banerjee, S., Bartl, W., Begalli, M., Beillière, P., Bizzarri, R., Briand, H., Brun, R., Canale, V., Caso, C., Castelli, E., Checchia, P., Chliapnikov, P. V., Colino, N., Colwill, S. J., Contri, R., Crennell, D., De Angelis, A., de Billy, L., Defoix, C., Di Marco, R., Di Capua, E., Diez-Hedo, F., Dolbeau, J., Duboc, J., Dumarchez, J., Eriksson, M., Falciano, S., Fernandez, C., Fisher, C., Fisyak, Yu. V., Fontanelli, F., Fry, J., Ganguli, S. N., Gasparini, U., Gensch, U., Gentile, S., Gibaut, D. B., Goshaw, A. T., Hamatsu, R., Haupt, L., Hellman, S., Henri, V., Hernandez, J. J., Holmgren, S. O., Houlden, M., Hrubec, J., Hughes, P., Huss, D., Iga, Y., Iori, M., Jegham, E., Johansson, K. E., Josa, M. I., Kalelkar, M., Kholodenko, A. G., Kistenev, E. P., Kitamura, S., Knauss, D., Kniazev, V. V., Kowald, W., Kuhn, D., Lsberrigue, J., Laloum, M., Legros, P., Leutz, H., Lyons, L., MacDermott, M., Malhotra, P. K., Mason, P., Mazzucato, M., Michalon-Mentzer, M. E., Michalon, A., Moa, T., Monge, R., Montanet, L., Neuhofer, G., Nguyen, H. K., Nilsson, S., Nowak, H., Oshima, N., Otter, G., Ouared, R., Panella Comellas, J., Patel, G., Patrignani, C., Pernicka, M., Pilette, P., Pinori, C., Piredda, G., Plano, R., Poppleton, A., Poropat, P., Reucroft, S., Roberts, K., Robertson, W. J., Rohringer, H., Salicio, J. M., Schulte, R., Sellden, B., Sessa, M., Squarcia, S., Stamer, P., Stopchenko, V. A., Takahashi, K., Touboul, M. C., Trevisan, U., Troncon, C., Tsurugai, T., Ventura, L., Vilain, P., Vlasov, E. V., Voltolini, C., Vonck, B., Walker, W. D., Wild, C. F., Yiou, T. P., Zumerle, G., and LEBC-EHS Collaboration

Published
1987
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40. Determination ofD-meson lifetimes

Author

Aguilar-Benitez, M., Allison, W. W., Bailly, J. L., Baland, J. F., Banerjee, S., Bartl, W., Begalli, M., Belliere, P., Bizzarri, R., Borreani, G., Briand, H., Bugg, W. M., Canale, V., Caso, C., Castelli, E., Checchia, P., Chliapnikov, P., Colino, N., Contri, R., Crennell, D., de Billy, L., Defoix, C., De Angelis, A., Dimarco, R., di Capua, E., Dolbeau, J., Dumarchez, J., Epp, B., Falciano, S., Fernandez, C., Fisher, C., Fisyak, Y., Fontanelli, F., Fry, J. R., Ganguli, S., Gasparini, U., Gentile, S., Gibaut, D., Goshaw, A., Grard, F., Gurtu, A., Hamatsu, R., Handler, T., Hart, E. L., Haupt, L., Hellman, S., Hernandez, J. J., Holmgren, S. O., Houlden, M. A., Hrubec, J., Hughes, P., Huss, D., Iga, Y., Iori, M., Jegham, E., Johanson, E., Josa, I., Kesteman, J., Kistenev, E., Kita, I., Kitamura, S., Kniazev, V., Kuhn, D., Laloum, M., Lemonne, J., Leutz, H., Lyons, L., MacDermott, M., Malhotra, P. K., Marchetto, F., Mason, P., Mazzucato, M., Michalon-Mentzer, M. E., Michalon, A., Moa, T., Monge, R., Montanet, L., Neuhofer, G., Nguyen, H. K., Nilsson, S., Nowak, H., Oshima, N., Otter, G., Panella, J., Patel, G. D., Pernicka, M., Pilette, P., Pinori, C., Piredda, G., Plano, R., Poppleton, A., Poropat, P., Raghavan, R., Reucroft, S., Roberts, K., Rohringer, H., Roth, A., Salicio, J., Schulte, R., Sellden, B., Sessa, M., Shankar, K., Squarcia, S., Stamer, P., Stopchenko, V., Struczinski, W., Subramanian, A., Sudhakar, K., Touboul, M. C., Trevisan, U., Troncon, C., Tsurugai, T., Uvarov, V., Ventura, L., Vilain, P., Vlasov, E., Voltolini, C., Vonck, B., Whyman, B. M., Wickens, J., Wright, P., Yamagata, T., Zumerle, G., and LEBC-EHS Collaboration

Published
1987
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42. InclusiveD-meson branching ratios

Author

Aguilar-Benitez, M., Allison, W. W. M., Bailly, J. L., Bartl, W., Begalli, M., Beillière, P., Bizzarri, R., Briand, H., Brun, R., Canale, V., Caso, C., Castelli, E., Checchia, P., Chliapnikov, P. V., Colino, N., Colwill, S. J., Contri, R., Crennell, D., De Angelis, A., de Billy, L., Defoix, C., Di Marco, R., Di Capua, E., Diez-Hedo, F., Dolbeau, J., Duboc, J., Dumarchez, J., Eriksson, M., Falciano, S., Fernandez, C., Fisher, C., Fisyak, Yu. V., Fontanelli, F., Fry, J., Gasparini, U., Gensch, U., Gentile, S., Gibaut, D. B., Goshaw, A. T., Gurtu, A., Hamatsu, R., Haupt, L., Hellman, S., Henri, V., Hernandez, J. J., Holmgren, S. O., Houlden, M., Hrubec, J., Hughes, P., Huss, D., Iga, Y., Iori, M., Jegham, E., Johansson, K. E., Josa, M. I., Kalelkar, M., Kholodenko, A. G., Kistenev, E. P., Kitamura, S., Knauss, D., Kniazev, V. V., Kowald, W., Kuhn, D., Laberrigue, J., Laloum, M., Legros, P., Leutz, H., Lyons, L., MacDermott, M., Mason, P., Mazzucato, M., Michalon-Mentzer, M. E., Michalon, A., Moa, T., Monge, R., Montanet, L., Neuhofer, G., Nguyen, H. K., Nilsson, S., Nowak, H., Oshima, N., Otter, G., Ouared, R., Panella Comellas, J., Patel, G., Patrignani, C., Pernicka, M., Pilette, P., Pinori, C., Piredda, G., Plano, R., Poppleton, A., Poropat, P., Raghavan, R., Reucroft, S., Roberts, K., Robertson, W. J., Rohringer, H., Salicio, J. M., Schulte, R., Sellden, B., Sessa, M., Squarcia, S., Stamer, P., Stopchenko, V. A., Subramanian, A., Sudhakar, K., Takahashi, K., Touboul, M. C., Trevisan, U., Troncon, C., Tsurugai, T., Ventura, L., Vilain, P., Vlasov, E. V., Voltolini, C., Vonck, B., Walker, W. D., Wild, C. F., Yiou, T. P., Zumerle, G., and LEBC-EHS Collaboration

Published
1987
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43. The holographic bubble chamber experiment and the determination of the effective charmed quark mass and theK-factor for hadronic charm production

Author

Cobbaert, H., Hobson, P. R., Arnold, R., Bailly, J. L., Balland, J. F., Barth, M., Bartley, J. H., Boratav, M., Bullock, F. W., Callichio, M., Coupland, M., Drevermann, H., Duff, B. G., Erriquez, O., Esten, M. J., Geiregat, D., Geissler, K., Grard, F., Henri, V. P., Herve, A., Heymann, F. F., Hrubec, J., Imrie, D. C., Johannsson, E., Kesteman, J., Lecoq, P., Lush, G. J., Maurer, G., Muciaccia, M. t., Natali, S., Nuzzo, S., Neuhofer, G., Olivier, P., Roosen, R., Ruggieri, F., Taurok, A., Tavernier, S. P. K., Touboul, M. C., Touchard, A. M., and Williams, O. R.

Published
1987
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48. Study of the reactivity mechanism of M3B2O 6 (with M = Co, Ni, and Cu) toward lithium

Author

Débart, A., Revel, B., Dupont, L., Montagne, L., Leriche, J.B., Touboul, M., Tarascon, J.M., Débart, A., Revel, B., Dupont, L., Montagne, L., Leriche, J.B., Touboul, M., and Tarascon, J.M.

Abstract

The electrochemical reactivity mechanism of M3B 2O6 (with M = Co, Ni, and Cu) powders toward lithium was studied by a combination of transmission electron microscopy (TEM), infrared spectroscopy (IR), 11B magic angle spinning nuclear magnetic resonance (MAS NMR), and electrochemical techniques. The electrochemical properties of these materials as anodes for lithium batteries were investigated and found to be similar to those of 3d-metal oxides. In fact, the reduction process of 3d-metal borates involves their decomposition in metal nanograins dispersed into a lithia matrix surrounded by an organic layer responsible for the observed extra capacity. The lithia matrix consists of a mixture of lithium oxide (Li2O) and lithium orthoborate (Li3BO3). During the subsequent charge, the organic layer vanishes and the metal grains are partially or fully oxidized with the concomitant decomposition of Li 2O. The formation of Li2O and metal nanograins during the discharge, as well as that of oxides nanograins during the following charge, were identified by HRTEM studies while Li3BO3 was detected by IR spectroscopy and 11B MAS NMR techniques.

Published
2003

49. Wet-chemical synthesis of various iron(III) vanadates(V) by co-precipitation route

Author

Poizot, P., Laruelle, S., Touboul, M., Tarascon, J.M., Poizot, P., Laruelle, S., Touboul, M., and Tarascon, J.M.

Abstract

When the solubility products or other thermodynamic data are not known, the optimum experimental procedures for preparing complex mixed oxides/hydroxides can be approximately predicted by extrapolation of the solubility behaviours of individual metal ions in aqueous solutions. This simple approach determined a probable co-precipitation domain ranging from pH = 0.7 to pH = 4 for FeIII-VV-H2O system. To control the kinetic aspect of condensation mechanisms in order to obtain crystallized compounds, three different experimental protocols were developed leading to successful syntheses of FeVO4·1.1 H2O, Fe4V6 O21·3 H2O and FeV3O9 ·2.6 H2O. These vanadates were characterized by X-ray diffraction (XRD), thermal analysis, scanning or transmission electron microscopy (SEM/TEM), and Brunauer-Emmett-Teller (BET) surface area measurements. The results notably revealed that FeVO4· 1.1 H2O and FeV3O9·2.6 H2O have close structural similarities with two minerals fervanite and kazakhstanite, respectively. © 2003 Académie des sciences. Published by Éditions scientifiques et médicales Elsevier SAS. All rights reserved.

Published
2003

50. A mechanism study of M3B2O6 (with M = Co, Ni and Cu) towards Li

Author

Débart, A., Revel, B., Dupont, L., Montagne, L., Leriche, J.B., Touboul, M., Tarascon, J.M., Débart, A., Revel, B., Dupont, L., Montagne, L., Leriche, J.B., Touboul, M., and Tarascon, J.M.

Abstract

The electrochemical reactivity mechanism of M3B 2O6 (with M = Co, Ni and Cu) powders towards Li was studied by a combination of Transmission Electron Microscopy (TEM), infrared spectroscopy (IR), 11B Magic Angle Spinning Nuclear Magnetic Resonance (MAS NMR). The electrochemical properties of these materials as anode for Li batteries were investigated, and found to be similar to those of 3d-metal oxides. In fact, the reduction process of 3d-metal borates involves their decomposition in metal nanograins dispersed into a lithia matrix surrounded by an organic layer responsible for the observed extra capacity. The lithia matrix consists of a mixture of lithium oxide (Li2O) and lithium orthoborate (Li3BO3). During the subsequent charge, the organic layer vanishes and the metal grains are partially or fully oxidized with the concomitant decomposition of Li2O.

Published
2003

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