高価レアメタルに代替合金 「金」並み価格が安価に
自動車排ガスを浄化する触媒として欠かせない高価なレアメタル（希少金属）「ロジウム」と同等以上の性能を持つ新しい合金を開発したと、京都大の北川宏教授（無機化学）らが２２日発表した。原料費はロジウムの約１０分の１で製造コストも安い。国内外で特許を出願し、自動車 ...
Vocabulary List
automobile
93734
purification / cleanup
105205
catalyst
105760
as (i.e. in the role of) / for (i.e. from the viewpoint of)
4274
high price
83068
scarce / rare
63919
metal
70523
rhodium (Rh)
43572
equality / equal / same rights / same rank / equivalence
136176
not less than / ... and more / ... and upwards
45608
ability / performance / efficiency
111374
alloy
83559
development / exploitation
58254
professor
68831
inorganic
157913
chemistry
53829
raw materials
76272
cost / expense
145519
rhodium (Rh)
43572
approximately / about
161126
manufacture / production
113180
cost
17685
inside and outside the country
84209
patent / special permission / licence (license) / concession / franchise / charter
136709
application
99957
automobile
93734
high price
83068
change of ownership / substitution / subrogation / alternation
123047
alloy
83559
gold / golden (color) / metaphor for (most) valuable / gold (medal, cup)
70286
price / value / cost
54503
low price / cheapness
45205
Shopping
