A simple and green technique has been developed to prepare hierarchical biomorphic ZrO2-CeO2, using silkworm silk as the template. Different from traditional immersion technics, the whole synthesis process depends more on the restriction or direction functions of the silkworm silk template. The analytic results showed that ZrO2-CeO2 exhibited a well-crystallized hierarchically interwoven hollow fiber structure with 16–28 μm in diameter. The grain size of the sample calcined at 800 °C was about 14 nm. Consequently, the interwoven meshwork at three dimensions is formed due to the direction of biotemplate. The action mechanism is summarily discussed here. It may bring the biomorphic ZrO2-CeO2 nanomaterials with hierarchical interwoven structures to more applications, such as catalysts.

Topics
Natural materials, Nanomaterials, Catalysts and Catalysis
r1
Heuer H, D J Fink, V J Laraia, J L Arias, P D Calvert and K Kendall 
Science
,
255
,
1098
(
1992
).
r2
Sieber H 
Mater. Sci. Eng.
,
412
,
43
(
2005
).
r3
Greil P 
Eur. Ceram. Soc.
,
21
,
105
(
2001
).
r4
Herzog A, R Klingner, U Vogt and T Graule 
Am. Ceram. Soc.
,
87
,
784
(
2004
).
r5
Liu Z T, T X Fan, J Ding, D Zhang, Q X Guo and H Ogawa 
Ceram. Int.
,
34
,
69
(
2008
).
r6
Liu Z T, T X Fan, D Zhang, X L Gong and J Q Xu 
Sens. Actuators B
,
136
,
499
(
2009
).
r7
Cheung T L Y and D H L Ng 
Am. Ceram. Soc.
,
90
,
559
(
2007
).
r8
Dong Q, H I Su, F Song, D Zhang and N Wang 
Am. Ceram. Soc.
,
90
,
376
(
2007
).
r9
Jun K, Y H Koh, J H Song, S H Lee and H E Kim 
Mater. Lett.
,
60
,
2507
(
2006
).
r10
Li J, F L Kwong and D H L Ng 
Am. Ceram. Soc.
,
91
,
1350
(
2008
).
r11
Yuan Z Y and B L Su 
Mater. Chem.
,
16
,
663
(
2006
).
r12
Li X F, T X Fan, Z T Liu, J Ding, Q X Guo and D Zhang 
Eur. Ceram. Soc.
,
26
,
3657
(
2006
).
r13
Liu Z T, T X Fan and D Zhang 
Am. Ceram. Soc.
,
89
,
662
(
2006
).
r14
Li S L, S Y Li, C T Wu and L S Sun 
Chin. J. Catal.
,
20
,
67
(
1999
).
r15
Hori C E, H Permana, K Y Simon Ng, A Brenner, K More and K M Rahmoeller 
Appl. Catal. B
,
16
,
105
(
1998
).
r16
Srisiriwat N, S Therdthianwong and A Therdthianwong 
Int. J. Hydrogen Energy
,
34
,
2225
(
2009
).
r17
Clavier G M, J L Pozzo, H Bouas-Laurent, C Liere, C Roux and C Sanchez 
J. Mater. Chem.
,
10
,
1725
(
2000
).
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