Mmiri mmiri bụ otu n'ime ihe ndị kasị ukwuu n'ụwa, na-enye nkwa ma dị ka isi iyi nke hydrogen - nke a na-achọsi ike dị ka isi iyi ike dị ọcha - na nke mmiri ọṅụṅụ na ihu igwe kpọrọ nkụ. Ma ọbụna dị ka nkà na ụzụ na-ekewa mmiri nke nwere ike ịmepụta hydrogen site na mmiri dị ọcha na-adịwanye irè karị, mmiri oké osimiri ka nọgidere bụrụ ihe ịma aka.

Ndị na-eme nchọpụta na Mahadum Houston akọpụtala nnukwu ọganihu na mmeghachi omume mmeghachi omume oxygen evolushọn ọhụrụ nke, jikọtara ya na mmeghachi omume mmeghachi omume hydrogen evolushọn, nwetara njupụta dị ugbu a nke nwere ike ịkwado ihe ndị ụlọ ọrụ na-achọ ebe na-achọ voltaji dị ala iji malite electrolysis nke oké osimiri.

Ndị nchọpụta na-ekwu na ngwaọrụ ahụ, nke nwere nitrides metal na-adịghị ọnụ ala, na-achịkwa iji zere ọtụtụ n'ime ihe mgbochi ndị kpachibidoro mgbalị mbụ iji mepụta hydrogen ma ọ bụ mmiri ọṅụṅụ dị mma site na mmiri oké osimiri. A kọwara ọrụ a na Nature Communications.

Zhifeng Ren, onye isi ụlọ ọrụ Texas Center for Superconductivity na UH na onye na-ede akwụkwọ kwekọrọ na ya, kwuru na nnukwu ihe mgbochi bụ enweghị ihe na-akpali akpali nke nwere ike kewaa mmiri mmiri nke ọma iji mepụta hydrogen na-enweghị ịtọhapụ ion nke sodium, chlorine, calcium n'efu. na akụkụ ndị ọzọ nke mmiri oké osimiri, bụ́ nke a tọhapụrụ mgbe a tọhapụrụ pụrụ ime ka ọ ghara ịdị irè. Chlorine ion na-enwe nsogbu karịsịa, n'otu akụkụ n'ihi na chlorine chọrọ obere voltaji dị elu iji nweere onwe ya karịa ka achọrọ iji tọhapụ hydrogen.

Ndị nyocha ahụ jiri mmiri mmiri si na Galveston Bay dị n'ụsọ oké osimiri Texas nwale ihe ndị na-akpali akpali. Ren, MD Anderson Chair Prọfesọ nke physics na UH, kwuru na ọ ga-arụkwa ọrụ na mmiri mkpofu, na-enye ọzọ isi iyi hydrogen si mmiri nke na-adịghị mma na-enweghị ọgwụgwọ dị oké ọnụ ahịa.

"Ọtụtụ ndị mmadụ na-eji mmiri dị ọcha na-emepụta hydrogen site na nkewa mmiri," ka o kwuru. "Ma enwere mmiri dị ọcha nwere oke."

Iji lebara ihe ịma aka ndị ahụ anya, ndị nchọpụta ahụ haziri ma mepụta mmeghachi omume mmeghachi omume oxygen evolushọn nke akụkụ atọ dị n'akụkụ site na iji metal-nitride mgbanwe, na nanoparticles nke ihe nickle-iron-nitride mere na nickle-molybdenum-nitride nanorods na ụfụfụ nickle porous.

Onye edemede nke mbụ Luo Yu, onye nyocha postdoctoral na UH nke sokwa na Central China Normal University, kwuru na agbakwunyere mmeghachi omume mmeghachi omume oxygen evolushọn ọhụrụ yana otu mmeghachi omume mmeghachi omume hydrogen evolushọn kọrọ na mbụ nke nickle-molybdenum-nitride nanorods.

Ejikọtara ihe ndị na-eme ka ahụ dị n'ime electrolyzer abụọ-electrode alkaline, nke enwere ike ịkwado ya site na ikpofu ọkụ site na ngwaọrụ thermoelectric ma ọ bụ site na batrị AA.

Igwe ọkụ cell chọrọ iji mepụta njupụta ugbu a nke 100 milliamperes kwa square centimita (ihe njupụta ugbu a, ma ọ bụ mA cm-2) sitere na 1.564 V ruo 1.581 V.

Voltage dị ịrịba ama, Yu kwuru, n'ihi na ọ bụ ezie na voltaji nke dịkarịa ala 1.23 V chọrọ iji mepụta hydrogen, a na-emepụta chlorine na voltaji nke 1.73 V, nke pụtara na ngwaọrụ ahụ ga-enwe ike ịmepụta ọkwa bara uru nke njupụta ugbu a na voltaji. n'etiti ọkwa abụọ.

Na mgbakwunye na Ren na Yu, ndị nchọpụta na akwụkwọ akụkọ gụnyere Qing Zhu, Shaowei Song, Brian McElhennyy, Dezhi Wang, Chunzheng Wu, Zhaojun Qin, Jiming Bao na Shuo Chen, niile nke UH; na Ying Yu nke Central China Normal University.

Nweta ozi sayensị kachasị ọhụrụ site na iji akwụkwọ akụkọ email efu nke ScienceDaily, emelitere kwa ụbọchị na kwa izu. Ma ọ bụ lelee ndepụta akụkọ emelitere kwa elekere na onye na-agụ RSS gị:

Gwa anyị ihe ị chere banyere ScienceDaily - anyị na-anabata ma okwu ọma na nke na-adịghị mma. Enwere nsogbu ọ bụla iji saịtị ahụ? Ajụjụ?