Brazil bụ mba kacha emepụta niobium n'ụwa ma nwee ihe dị ka pasentị 98 nke ihe nchekwa dị n'ụwa. A na-eji mmewere kemịkalụ a na alloys ọla, ọkachasị nchara siri ike, yana n'ọtụtụ ngwa teknụzụ dị elu na-enweghị njedebe site na ekwentị gaa na injin ụgbọ elu. Brazil na-ebupụ ọtụtụ niobium ọ na-emepụta n'ụdị ngwa ahịa dị ka ferroniobium.

Ihe ọzọ Brazil nwekwara n'ọtụtụ buru ibu mana ejighi ya eme ihe bụ glycerol, ihe sitere na saponification mmanụ na abụba na ncha na ụlọ ọrụ ncha, yana mmeghachi omume transesterification na ụlọ ọrụ biodiesel. N'okwu a, ọnọdụ ahụ na-akawanye njọ n'ihi na a na-atụfukarị glycerol dị ka ihe mkpofu, na mkpofu kwesịrị ekwesị nke nnukwu mpịakọta dị mgbagwoju anya.

Nnyocha e mere na Mahadum Federal nke ABC (UFABC) na São Paulo State, Brazil, jikọtara niobium na glycerol na ngwọta nkà na ụzụ na-ekwe nkwa ịmepụta mkpụrụ ndụ mmanụ ụgbọala. Otu isiokwu na-akọwa ọmụmụ ihe, nke isiokwu ya bụ "Niobium enhances electrocatalytic Pd act in alkaline direct glycerol fuel cell," na ChemElectroChem na-apụta na mkpuchi nke akwụkwọ akụkọ.

"N'ụkpụrụ, cell ga-arụ ọrụ dị ka batrị glycerol na-ejupụta maka ịchaji obere ngwaọrụ eletrọnịkị dị ka ekwentị ma ọ bụ laptọọpụ. Enwere ike iji ya na mpaghara ọkụ eletrik adịghị ekpuchi. Mgbe e mesịrị, teknụzụ nwere ike ịmegharị ka ọ na-agba ụgbọ ala eletrik na ọbụna inye ọkụ n'ụlọ. Enwere ngwa nwere ike na-akparaghị ókè n'ikpeazụ, "Chemist Felipe de Moura Souza, onye edemede mbụ nke akụkọ ahụ gwara. Souza nwere akwụkwọ mmụta doctorate ozugbo sitere na São Paulo Research Foundation-FAPESP.

N'ime cell, ike kemịkalụ sitere na mmeghachi omume glycerol oxidation na anode na mbelata ikuku oxygen na cathode na-agbanwe n'ime ọkụ eletrik, na-ahapụ naanị carbon gas na mmiri dị ka ihe fọdụrụ. Mmeghachi omume zuru oke bụ C3H8O3 (glycerol mmiri mmiri) + 7/2 O2 (oxygen gas) → 3 CO2 (carbon gas) + 4 H2O (mmiri mmiri). E gosipụtara ihe ngosi nhazi nke usoro a n'okpuru.

"Niobium [Nb] na-ekere òkè na usoro ahụ dị ka onye na-emekọ ihe ọnụ, na-enyere aka ime ihe nke palladium [Pd] eji dị ka mmanụ ụgbọala anode. Mgbakwunye nke niobium na-eme ka ọnụ ọgụgụ nke palladium belata, na-ebelata ọnụahịa nke cell. N'otu oge ahụ ọ na-abawanye ike nke cell. Mana isi onyinye ya bụ mbelata nsị electrolytic nke palladium nke sitere na oxidation nke intermediates nke na-agbadosi ike na ọrụ ogologo oge nke cell, dị ka carbon monoxide, "Mauro Coelho dos Santos, onye prọfesọ na UFABC kwuru. , onye ndụmọdụ tesis maka doctorate kpọmkwem nke Souza, na onye isi nyocha maka ọmụmụ ihe ahụ.

Site n'echiche gburugburu ebe obibi, nke karịa mgbe ọ bụla kwesịrị ịbụ ihe dị mkpa maka nhọrọ nkà na ụzụ, a na-ewere mmanụ mmanụ glycerol dị ka ngwọta dị mma n'ihi na ọ nwere ike dochie engines combustion nke mmanụ ọkụ na-akwado.