Robust Self-Catalytic Reactor for CO2 Methanation Fabricated by Metal 3D Printing and Selective Electrochemical Dissolution

The methanation of CO2 has been actively pursued as a practical approach to mitigating global climate change. However, the complexity of the catalyst development process has hindered the development of new catalysts for CO2 methanation; as a result, few catalysts are commercially available. Herein, a multifunctional self-catalytic reactor (SCR) is prepared via metal 3D printing and selective electrochemical dissolution as a method to not only simplify the catalyst development process but also fabricate active catalysts for CO2 methanation. The combination of metal 3D printing and selective electrochemical dissolution is demonstrated as a feasible method to prepare active catalysts for the methanation of CO2 in a short time. In addition, the use of an electrochemical method enables the formation of galvanic cells on the SCR; these cells continuously generate active sites via self-dissolution during a simple refresh process, resulting in high reusability of the SCR. The proposed method represents a new facile technique to fabricate highly reusable catalysts that exhibit superior performance for CO2 methanation, and the results provide a guideline for preparing metal 3D-printed catalysts that will satisfy industrial demand.Kim H.J., Mori K., Nakano T., et al. Robust Self-Catalytic Reactor for CO2 Methanation Fabricated by Metal 3D Printing and Selective Electrochemical Dissolution. Advanced Functional Materials , (2023); https://doi.org/10.1002/adfm.202303994

Chromosome 8-14 translocation in a non-African Burkitt's lymphoma with leukemic conversion.

A specific chromosome translocation, t(8q-; 14q+), was observed in a 43-year-old female with non-African Burkitt's lymphoma in which leukemic conversion had occurred. The chromosome studies used cells from ascites. The ascites was apparently the result of a primary tumor involving the ovaries and contained 68% of lymphoma cells. The frequent occurrence of abnormalities related to chromosomes 1, 8 and 14 in African and non-African Burkitt's lymphomas was emphasized.</p

Photocatalytic Approaches for Hydrogen Production via Formic Acid Decomposition

The photocatalytic dehydrogenation of formic acid has recently emerged as an outstanding alternative to the traditional thermal catalysts widely applied in this reaction. The utilization of photocatalytic processes for the production of hydrogen is an appealing strategy that perfectly matches with the idea of a green and sustainable future energy scenario. However, it sounds easier than it is, and great efforts have been needed to design and develop highly efficient photocatalysts for the production of hydrogen from formic acid. In this work, some of the most representative strategies adopted for this application are reviewed, paying particular attention to systems based on TiO2, CdS and C3N4.The present work was supported by JST, PRESTO (JPMJPR1544) and by Grants-in-Aid for Scientific Research (nos. 26220911, 25289289, and 26630409, 26620194) from the Japan Society for the Promotion of Science (JSPS) and MEXT and “Elemental Strategy Initiative to Form Core Research Center”. MNG gratefully acknowledge the financial support by the Generalitat Valenciana and Plan GenT (CDEIGENT/2018/027) for the financial support. DST thanks MICINN for a “Juan de la Cierva” contract (IJCI-2016-27636)

Investigation of Pd nanoparticles supported on zeolites for hydrogen production from formic acid dehydrogenation

Catalysts based on palladium nanoparticles supported on different zeolites (BETA, ZSM-5 and Y) were prepared and their catalytic performance in formic acid dehydrogenation was studied. The effects of the zeolite structure and porous texture on the catalytic activity were investigated by comparing the behavior of these samples. The results revealed that the samples based on BETA zeolite are promising catalysts for this application.The authors would like to acknowledge the Ministerio de Economía y Competitividad, GV and FEDER (CTQ2012/31762 and PROMETEOII/2014/010) for the financial support. Miriam Navlani-García thanks the University of Alicante for the PhD studentship. Martin Martis thanks the Japan Society for the Promotion of Science (JSPS) for the fellowship