Abstract:
본 발명은 질소 이외에 붕소, 인 중에서 선택된 어느 하나 이상의 추가적 도핑에 의해 산소 환원 반응성이 증가된 탄소 촉매의 제조방법에 관한 것으로서 보다 상세하게는 질소(N) 이외에 붕소(B) 및 인(P) 중에서 선택된 어느 하나 이상을 추가로 첨가하고 열처리하여 질소가 도핑된 탄소 촉매의 산소 환원 반응성을 증가시키는 것을 특징으로 하는 탄소 촉매의 제조방법 및 동 방법에 의해 제조하여 산소 환원 반응성이 증가된 탄소 촉매에 관한 것이다.
Abstract:
본발명은전이금속합금을이용한산소환원촉매에관한것으로, 더욱상세하게는고가의백금촉매를대신하여 Ir, Ni 및전이금속의 3중합금을이용하여제작되는산소환원촉매에관한것이다. 본발명에따른전이금속합금산소환원촉매는고가의백금을사용하지않으며, 팔라듐촉매에비하여전류및 산에안정하므로가격경쟁력이뛰어나고수명이길어효율적인촉매사용에유용하다.
Abstract:
The present invention relates to a manufacturing method of a carbon catalyst with increased oxygen reduction reactivity by additionally doping one or more selected among boron and phosphorus apart from nitrogen and more specifically, to a manufacturing method of carbon catalysts, which improves the oxygen reduction reactivity of nitrogen-doped carbon catalysts by adding at least one selected among boron (B) and phosphorus (P) apart from nitrogen (N) and performing heat treatment, and carbon catalysts with enhanced oxygen reduction reactivity manufactured by the method.
Abstract:
Disclosed are an electrode catalyst for a fuel cell providing an excellent catalyst activity, a preparing method thereof, and a membrane electrode assembly and a fuel cell including the same. In accordance with an aspect of the present invention, an electrode catalyst for a fuel cell comprising catalyst particles having palladium (Pd), gallium (Ga), and cerium (Ce) is provided. The electrode catalyst for a fuel cell has excellent oxygen reduction activity thereby providing a low-cost and high-quality fuel cell by using the same.
Abstract:
본 발명은 질소 등의 heteroatom이 도핑된 탄소를 합성하는 방법에 관한 것으로, 단백질을 구성하는 단위체인 아미노산을 전구체로 사용하여 친환경적이고 안전하며 가격 경쟁력이 있는 도핑된 탄소를 합성하는 것을 나타낸다. 이 방법을 통하여, 질소뿐 아니라 황과 같은 다른 원소가 도핑된 탄소를 합성할 수 있다.
Abstract:
PURPOSE: A manufacturing method of doped carbon using amino acid is provided to cost effectively obtain the doped carbon and dope carbon with other atoms such as sulfur. CONSTITUTION: A manufacturing method of doped carbon using amino acid includes the following steps: the mixture of transition metal precursors and amino acid is pyrolyzed; the transition metal precursors are one or more selected from a group including the oxides, the nitride, and the chloride of one or more of Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb, Mo, Te, Ru, Rh, Pd, Ag, Cd, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Hf, Ta, W, Re, Os, and Ir. The amino acid is one or more selected from a group including alanine, arginine, asparagine, aspartic acid, cysteine, glutamic acid, clutamine, glycine, histidine, isoeucine, leucine, lysine, methionine, niacine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine, valine, selenocysteine, and pyrrolysine.
Abstract:
PURPOSE: A manufacturing method of a catalyst is provided to easily use and transport the catalyst by using solid nitration-carbonized hydrogen, and to economically manufacture the catalyst. CONSTITUTION: A manufacturing method of a catalyst for oxidizing a positive electrode of a direct alcohol fuel cell or a polymer electrolyte fuel cell, comprises the following steps: mixing a transition metal precursor and a solvent; reducing the mixed solution, and oxidizing the outcome to form a transition metal oxide catalyst; and mixing the transition metal oxide catalyst with solid hydrocarbon nitride, and heat processing the mixture.