以CuSO4 、Pt(NH3)4Cl2及Pd(OAc)2的單獨金屬鹽類或混合雙金屬鹽
類之水溶液，經定電位方式電解於玻璃化碳電極（glassy carbon）上，
形成各種單金屬微粒及Pt-Cu和Pt-Pd雙金屬微粒。經由掃描式電子顯微
鏡( Scanning Electronic Microscope, SEM )測得電極的粒徑大小及分
散狀態，並利用能量發散光譜儀( Energy Dispersive X-ray
Spectrometer, EDS )測得雙金屬系統中，每一個粒子中同時含有兩種金
屬成份。 雙金屬微粒電極系統中對H2O2的催化活性與
粒子成份比例有關，以Pt/Cu（1/1）具最好的催化活性，約為Pt單金屬電
極的4倍。依ESCA指出單金屬粒子本身容易被H2O2氧化成氧化物而使得催
化活性降低；而雙金屬粒子中，可能是形成Pt在核內，Cu或Pd包覆於周圍
的合金結構，才會造成只有外層包覆金屬的氧化，而內層Pt不受影響。
利用雙金屬微粒電極系統，可使H2O2分解為O2，進一步地作為具有催化作
用之葡萄糖的感測器。如Pt-Cu雙金屬微粒電極，偵測葡萄糖濃度時，不
但具有很高的感度（sensitivity）（1uM/1mM葡萄糖）及最小偵測極限
（0.5uM）之外，還不受正常人生理血清中所含的干擾物，如維他命C、尿
酸等的干擾作用。

Electrolyze of the monometallic salt or mixed bimetallic
salt of CuSO4( aq ) , Pt(NH3)4Cl2 ( aq ) and Pd(OAc)2 (aq) onto
the glassy carbon electrode in the constant potential way, and
then they would result in many kinds of monometallic fine
particles, Pt-Cu and Pt-Pd bimetallic fine particles. The
scanning electronic microscope ( SEM ) indicates that these
bimetallic fine particles in size and distribution of the
electrodes. The energy dispersive X-ray spectrometer ( EDS )
indicates that each particle contns two kinds of metallic
compositions. The catalytic activity
of bimetallic fine particle electrode systems for the decompose
of hydrogen peroxide were found to depend on the metallic
composition of the of the particle. A bimetallic fine particle
with a mole ratio of Pt/Cu=1/1 was the most catalytic activity
four times as active as the typical Platinum fine particle
electrode catalyst for the decompose of hydrogen peroxide.
Electron spectroscopy for chemical analysis ( ESCA ) indicate
monometallic fine particles were easy oxidize by hydrogen peride
resulting in oxides and the catalytic activity of they deduced.
Moreover , in the bimetallic fine particles which were possible
for Platinum to form in the core, and Copper or Palladinum would
cover around it and form the alloy structure, thus they would
format oxide, which were outer but the inner was not influenced.

By bimetallic fine particle systems , can make hydrogen peroxide
decompose into oxygen, and use they as the sensors which have
the glucose of catalytic reaction in advance. For example Pt-Cu
bimetallic fine particle electrode when be occupied, it has not
only high sensitivity(1uA /1mM glucose ) , minimal detective
limit (0.5uM ) and sensor stability test six days, but also
ignore the interference of the interferences existing in nomal
person physiological serum , ascorbic acid ,uric acid etc.
Electrolyze of the monometallic salt or mixed bimetallic