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Oxygen-vacancy-mediated Catalysis Boosts Direct Methanation of Biomass


Chinese Academy of Sciences
Biomethane (CH
Currently, CH
4 is mainly produced via a multi-step process in which biomass is first gasified into biogas, followed by the methanation of the latter. This method requires high temperature and pressure and shows low selectivity for chemical or biological processes.
Recently, a research group led by Prof. WANG Feng from the Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, in collaboration with Prof. WANG Min’s group from Dalian University of Technology, proposed interfacial oxygen-vacancy (Vo)-mediated catalysis over Ru/TiO
2 for the direct methanation of lignocellulosic biomass at temperatures below 200°C and with a selectivity above 95%. ....

Dalian University Of Technology , National Natural Science Foundation Of China , Technology Of The People Republic China , Ministry Of Science , Dalian Institute , Chemical Physics , Chinese Academy , Dalian University , National Natural Science Foundation , Strategic Priority Research Program , டேலியன் பல்கலைக்கழகம் ஆஃப் தொழில்நுட்பம் , தேசிய இயற்கை அறிவியல் அடித்தளம் ஆஃப் சீனா , தொழில்நுட்பம் ஆஃப் தி மக்கள் குடியரசு சீனா , அமைச்சகம் ஆஃப் அறிவியல் , டேலியன் நிறுவனம் , இரசாயன இயற்பியல் , சீன கலைக்கழகம் , டேலியன் பல்கலைக்கழகம் , தேசிய இயற்கை அறிவியல் அடித்தளம் , மூலோபாய ப்ரையாரிடீ ஆராய்ச்சி ப்ரோக்ர்யாம் ,

Effect of 2 Inactivated SARS-CoV-2 Vaccines on Symptomatic COVID-19 Infection in Adults


See eTable 1 in Supplement 2 for definitions of each analysis population. Among those receiving aluminum hydroxide (alum) for the first dose, 5 participants received WIV04 (n = 2) and HB02 (n = 3) vaccines for the second dose and were not included in the safety analysis population of the alum-only group (13 458 – 5 = 13 453), but were included in the WIV04 and HB02 groups, respectively. Three participants who received WIV04 for the first dose and HB02 for the second dose and 3 participants who received HB02 for the first dose and WIV04 for the second dose were included in both groups (WIV04: 13 459 + 2 + 3 = 13 464; HB02: 13 465 + 3 + 3 = 13 471). To measure neutralization antibody levels, the first 900 participants from each study site were selected. There were 9 participants in the WIV04 group, 7 in the HB02 group, and 8 in alum-only group who had adverse events or serious adverse events (SAEs) after the first dose and did not receive the se ....

United Arab Emirates , United Kingdom , Ministry Of Health , Al Qahirah , South Africa , Ash Shariqah , Abu Dhabi , Abuz Aby , World Health Organization , Jianxing Qiu , Al Mazrouei , Yuntao Zhang , Jielai Xia , Tal Karam , Al Qahtani , Bassam Mahboub , Xiaoming Yang , Jameela Alsalman , Dala Al Mansoori , Al Nusair , Al Kaabi , Jinming Li , Xuanyi Wang , Xingwang Li , Yanbo Zhang , Saifuddin Fasihuddin ,